2012-11-28 21:28:09 -07:00
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/*
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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* fs/f2fs/segment.h
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd.
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* http://www.samsung.com/
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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2013-04-29 01:58:39 -06:00
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#include <linux/blkdev.h>
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2015-05-22 15:13:32 -06:00
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#include <linux/backing-dev.h>
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2013-04-29 01:58:39 -06:00
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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/* constant macro */
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#define NULL_SEGNO ((unsigned int)(~0))
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2013-03-30 22:26:03 -06:00
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#define NULL_SECNO ((unsigned int)(~0))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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2014-03-18 23:17:21 -06:00
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#define DEF_RECLAIM_PREFREE_SEGMENTS 5 /* 5% over total segments */
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2016-07-13 19:23:35 -06:00
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#define DEF_MAX_RECLAIM_PREFREE_SEGMENTS 4096 /* 8GB in maximum */
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2013-10-23 22:31:34 -06:00
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2016-12-05 14:56:04 -07:00
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#define F2FS_MIN_SEGMENTS 9 /* SB + 2 (CP + SIT + NAT) + SSA + MAIN */
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2013-04-05 23:44:32 -06:00
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/* L: Logical segment # in volume, R: Relative segment # in main area */
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2017-04-08 17:11:36 -06:00
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#define GET_L2R_SEGNO(free_i, segno) ((segno) - (free_i)->start_segno)
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#define GET_R2L_SEGNO(free_i, segno) ((segno) + (free_i)->start_segno)
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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2017-04-08 17:11:36 -06:00
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#define IS_DATASEG(t) ((t) <= CURSEG_COLD_DATA)
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#define IS_NODESEG(t) ((t) >= CURSEG_HOT_NODE)
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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2017-05-10 12:18:25 -06:00
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#define IS_HOT(t) ((t) == CURSEG_HOT_NODE || (t) == CURSEG_HOT_DATA)
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#define IS_WARM(t) ((t) == CURSEG_WARM_NODE || (t) == CURSEG_WARM_DATA)
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#define IS_COLD(t) ((t) == CURSEG_COLD_NODE || (t) == CURSEG_COLD_DATA)
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2013-03-30 21:30:04 -06:00
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#define IS_CURSEG(sbi, seg) \
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2017-04-08 17:11:36 -06:00
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(((seg) == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_WARM_DATA)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_COLD_DATA)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_HOT_NODE)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno) || \
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((seg) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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#define IS_CURSEC(sbi, secno) \
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2017-04-08 17:11:36 -06:00
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(((secno) == CURSEG_I(sbi, CURSEG_HOT_DATA)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_WARM_DATA)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_COLD_DATA)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_HOT_NODE)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_WARM_NODE)->segno / \
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(sbi)->segs_per_sec) || \
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((secno) == CURSEG_I(sbi, CURSEG_COLD_NODE)->segno / \
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(sbi)->segs_per_sec)) \
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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2018-03-08 01:29:13 -07:00
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#define MAIN_BLKADDR(sbi) \
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(SM_I(sbi) ? SM_I(sbi)->main_blkaddr : \
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le32_to_cpu(F2FS_RAW_SUPER(sbi)->main_blkaddr))
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#define SEG0_BLKADDR(sbi) \
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(SM_I(sbi) ? SM_I(sbi)->seg0_blkaddr : \
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le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment0_blkaddr))
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2014-09-23 12:23:01 -06:00
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#define MAIN_SEGS(sbi) (SM_I(sbi)->main_segments)
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2017-04-08 17:11:36 -06:00
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#define MAIN_SECS(sbi) ((sbi)->total_sections)
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2014-09-23 12:23:01 -06:00
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2018-03-08 01:29:13 -07:00
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#define TOTAL_SEGS(sbi) \
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(SM_I(sbi) ? SM_I(sbi)->segment_count : \
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le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count))
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2017-04-08 17:11:36 -06:00
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#define TOTAL_BLKS(sbi) (TOTAL_SEGS(sbi) << (sbi)->log_blocks_per_seg)
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2014-09-23 12:23:01 -06:00
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#define MAX_BLKADDR(sbi) (SEG0_BLKADDR(sbi) + TOTAL_BLKS(sbi))
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2017-04-08 17:11:36 -06:00
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#define SEGMENT_SIZE(sbi) (1ULL << ((sbi)->log_blocksize + \
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(sbi)->log_blocks_per_seg))
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2014-09-23 12:23:01 -06:00
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#define START_BLOCK(sbi, segno) (SEG0_BLKADDR(sbi) + \
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2017-04-08 17:11:36 -06:00
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(GET_R2L_SEGNO(FREE_I(sbi), segno) << (sbi)->log_blocks_per_seg))
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2014-09-23 12:23:01 -06:00
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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#define NEXT_FREE_BLKADDR(sbi, curseg) \
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2017-04-08 17:11:36 -06:00
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(START_BLOCK(sbi, (curseg)->segno) + (curseg)->next_blkoff)
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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2014-09-23 12:23:01 -06:00
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#define GET_SEGOFF_FROM_SEG0(sbi, blk_addr) ((blk_addr) - SEG0_BLKADDR(sbi))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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#define GET_SEGNO_FROM_SEG0(sbi, blk_addr) \
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2017-04-08 17:11:36 -06:00
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(GET_SEGOFF_FROM_SEG0(sbi, blk_addr) >> (sbi)->log_blocks_per_seg)
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2014-02-03 21:01:10 -07:00
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#define GET_BLKOFF_FROM_SEG0(sbi, blk_addr) \
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2017-04-08 17:11:36 -06:00
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(GET_SEGOFF_FROM_SEG0(sbi, blk_addr) & ((sbi)->blocks_per_seg - 1))
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2014-02-03 21:01:10 -07:00
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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#define GET_SEGNO(sbi, blk_addr) \
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2018-06-05 03:44:11 -06:00
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((!is_valid_data_blkaddr(sbi, blk_addr)) ? \
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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NULL_SEGNO : GET_L2R_SEGNO(FREE_I(sbi), \
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GET_SEGNO_FROM_SEG0(sbi, blk_addr)))
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2017-04-07 16:08:17 -06:00
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#define BLKS_PER_SEC(sbi) \
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((sbi)->segs_per_sec * (sbi)->blocks_per_seg)
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#define GET_SEC_FROM_SEG(sbi, segno) \
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2017-04-08 17:11:36 -06:00
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((segno) / (sbi)->segs_per_sec)
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2017-04-07 16:08:17 -06:00
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#define GET_SEG_FROM_SEC(sbi, secno) \
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2017-04-07 15:27:07 -06:00
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((secno) * (sbi)->segs_per_sec)
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2017-04-07 16:08:17 -06:00
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#define GET_ZONE_FROM_SEC(sbi, secno) \
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((secno) / (sbi)->secs_per_zone)
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#define GET_ZONE_FROM_SEG(sbi, segno) \
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GET_ZONE_FROM_SEC(sbi, GET_SEC_FROM_SEG(sbi, segno))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
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#define GET_SUM_BLOCK(sbi, segno) \
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2017-04-08 17:11:36 -06:00
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((sbi)->sm_info->ssa_blkaddr + (segno))
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f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
|
|
|
|
#define GET_SUM_TYPE(footer) ((footer)->entry_type)
|
2017-04-08 17:11:36 -06:00
|
|
|
#define SET_SUM_TYPE(footer, type) ((footer)->entry_type = (type))
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
|
|
|
|
#define SIT_ENTRY_OFFSET(sit_i, segno) \
|
2017-04-08 17:11:36 -06:00
|
|
|
((segno) % (sit_i)->sents_per_block)
|
2014-09-04 04:11:47 -06:00
|
|
|
#define SIT_BLOCK_OFFSET(segno) \
|
2017-04-08 17:11:36 -06:00
|
|
|
((segno) / SIT_ENTRY_PER_BLOCK)
|
2014-09-04 04:11:47 -06:00
|
|
|
#define START_SEGNO(segno) \
|
|
|
|
(SIT_BLOCK_OFFSET(segno) * SIT_ENTRY_PER_BLOCK)
|
2013-11-21 18:09:59 -07:00
|
|
|
#define SIT_BLK_CNT(sbi) \
|
2014-09-23 12:23:01 -06:00
|
|
|
((MAIN_SEGS(sbi) + SIT_ENTRY_PER_BLOCK - 1) / SIT_ENTRY_PER_BLOCK)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
#define f2fs_bitmap_size(nr) \
|
|
|
|
(BITS_TO_LONGS(nr) * sizeof(unsigned long))
|
|
|
|
|
2014-09-15 04:01:10 -06:00
|
|
|
#define SECTOR_FROM_BLOCK(blk_addr) \
|
|
|
|
(((sector_t)blk_addr) << F2FS_LOG_SECTORS_PER_BLOCK)
|
|
|
|
#define SECTOR_TO_BLOCK(sectors) \
|
2017-04-08 17:11:36 -06:00
|
|
|
((sectors) >> F2FS_LOG_SECTORS_PER_BLOCK)
|
2012-12-09 17:26:05 -07:00
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
/*
|
|
|
|
* indicate a block allocation direction: RIGHT and LEFT.
|
|
|
|
* RIGHT means allocating new sections towards the end of volume.
|
|
|
|
* LEFT means the opposite direction.
|
|
|
|
*/
|
|
|
|
enum {
|
|
|
|
ALLOC_RIGHT = 0,
|
|
|
|
ALLOC_LEFT
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* In the victim_sel_policy->alloc_mode, there are two block allocation modes.
|
|
|
|
* LFS writes data sequentially with cleaning operations.
|
|
|
|
* SSR (Slack Space Recycle) reuses obsolete space without cleaning operations.
|
|
|
|
*/
|
|
|
|
enum {
|
|
|
|
LFS = 0,
|
|
|
|
SSR
|
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* In the victim_sel_policy->gc_mode, there are two gc, aka cleaning, modes.
|
|
|
|
* GC_CB is based on cost-benefit algorithm.
|
|
|
|
* GC_GREEDY is based on greedy algorithm.
|
|
|
|
*/
|
|
|
|
enum {
|
|
|
|
GC_CB = 0,
|
2017-04-13 16:17:00 -06:00
|
|
|
GC_GREEDY,
|
|
|
|
ALLOC_NEXT,
|
|
|
|
FLUSH_DEVICE,
|
|
|
|
MAX_GC_POLICY,
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
/*
|
|
|
|
* BG_GC means the background cleaning job.
|
|
|
|
* FG_GC means the on-demand cleaning job.
|
2015-10-05 12:02:54 -06:00
|
|
|
* FORCE_FG_GC means on-demand cleaning job in background.
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
*/
|
|
|
|
enum {
|
|
|
|
BG_GC = 0,
|
2015-10-05 12:02:54 -06:00
|
|
|
FG_GC,
|
|
|
|
FORCE_FG_GC,
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
/* for a function parameter to select a victim segment */
|
|
|
|
struct victim_sel_policy {
|
|
|
|
int alloc_mode; /* LFS or SSR */
|
|
|
|
int gc_mode; /* GC_CB or GC_GREEDY */
|
|
|
|
unsigned long *dirty_segmap; /* dirty segment bitmap */
|
f2fs: optimize gc for better performance
This patch improves the gc efficiency by optimizing the victim
selection policy. With this optimization, the random re-write
performance could increase up to 20%.
For f2fs, when disk is in shortage of free spaces, gc will selects
dirty segments and moves valid blocks around for making more space
available. The gc cost of a segment is determined by the valid blocks
in the segment. The less the valid blocks, the higher the efficiency.
The ideal victim segment is the one that has the most garbage blocks.
Currently, it searches up to 20 dirty segments for a victim segment.
The selected victim is not likely the best victim for gc when there
are much more dirty segments. Why not searching more dirty segments
for a better victim? The cost of searching dirty segments is
negligible in comparison to moving blocks.
In this patch, it enlarges the MAX_VICTIM_SEARCH to 4096 to make
the search more aggressively for a possible better victim. Since
it also applies to victim selection for SSR, it will likely improve
the SSR efficiency as well.
The test case is simple. It creates as many files until the disk full.
The size for each file is 32KB. Then it writes as many as 100000
records of 4KB size to random offsets of random files in sync mode.
The testing was done on a 2GB partition of a SDHC card. Let's see the
test result of f2fs without and with the patch.
---------------------------------------
2GB partition, SDHC
create 52023 files of size 32768 bytes
random re-write 100000 records of 4KB
---------------------------------------
| file creation (s) | rewrite time (s) | gc count | gc garbage blocks |
[no patch] 341 4227 1174 174840
[patched] 324 2958 645 106682
It's obvious that, with the patch, f2fs finishes the test in 20+% less
time than without the patch. And internally it does much less gc with
higher efficiency than before.
Since the performance improvement is related to gc, it might not be so
obvious for other tests that do not trigger gc as often as this one (
This is because f2fs selects dirty segments for SSR use most of the
time when free space is in shortage). The well-known iozone test tool
was not used for benchmarking the patch becuase it seems do not have
a test case that performs random re-write on a full disk.
This patch is the revised version based on the suggestion from
Jaegeuk Kim.
Signed-off-by: Jin Xu <jinuxstyle@gmail.com>
[Jaegeuk Kim: suggested simpler solution]
Reviewed-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2013-09-04 22:45:26 -06:00
|
|
|
unsigned int max_search; /* maximum # of segments to search */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned int offset; /* last scanned bitmap offset */
|
|
|
|
unsigned int ofs_unit; /* bitmap search unit */
|
|
|
|
unsigned int min_cost; /* minimum cost */
|
|
|
|
unsigned int min_segno; /* segment # having min. cost */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct seg_entry {
|
2016-05-04 09:19:48 -06:00
|
|
|
unsigned int type:6; /* segment type like CURSEG_XXX_TYPE */
|
|
|
|
unsigned int valid_blocks:10; /* # of valid blocks */
|
|
|
|
unsigned int ckpt_valid_blocks:10; /* # of valid blocks last cp */
|
|
|
|
unsigned int padding:6; /* padding */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned char *cur_valid_map; /* validity bitmap of blocks */
|
2017-01-07 03:51:01 -07:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
unsigned char *cur_valid_map_mir; /* mirror of current valid bitmap */
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
/*
|
|
|
|
* # of valid blocks and the validity bitmap stored in the the last
|
|
|
|
* checkpoint pack. This information is used by the SSR mode.
|
|
|
|
*/
|
2016-05-04 09:19:48 -06:00
|
|
|
unsigned char *ckpt_valid_map; /* validity bitmap of blocks last cp */
|
2015-04-30 23:37:50 -06:00
|
|
|
unsigned char *discard_map;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned long long mtime; /* modification time of the segment */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct sec_entry {
|
|
|
|
unsigned int valid_blocks; /* # of valid blocks in a section */
|
|
|
|
};
|
|
|
|
|
|
|
|
struct segment_allocation {
|
|
|
|
void (*allocate_segment)(struct f2fs_sb_info *, int, bool);
|
|
|
|
};
|
|
|
|
|
2015-08-07 04:42:09 -06:00
|
|
|
/*
|
|
|
|
* this value is set in page as a private data which indicate that
|
|
|
|
* the page is atomically written, and it is in inmem_pages list.
|
|
|
|
*/
|
2016-01-29 17:21:15 -07:00
|
|
|
#define ATOMIC_WRITTEN_PAGE ((unsigned long)-1)
|
2016-12-14 11:12:56 -07:00
|
|
|
#define DUMMY_WRITTEN_PAGE ((unsigned long)-2)
|
2015-08-07 04:42:09 -06:00
|
|
|
|
|
|
|
#define IS_ATOMIC_WRITTEN_PAGE(page) \
|
|
|
|
(page_private(page) == (unsigned long)ATOMIC_WRITTEN_PAGE)
|
2016-12-14 11:12:56 -07:00
|
|
|
#define IS_DUMMY_WRITTEN_PAGE(page) \
|
|
|
|
(page_private(page) == (unsigned long)DUMMY_WRITTEN_PAGE)
|
2015-08-07 04:42:09 -06:00
|
|
|
|
2018-07-24 21:11:56 -06:00
|
|
|
#define MAX_SKIP_GC_COUNT 16
|
f2fs: avoid stucking GC due to atomic write
f2fs doesn't allow abuse on atomic write class interface, so except
limiting in-mem pages' total memory usage capacity, we need to limit
atomic-write usage as well when filesystem is seriously fragmented,
otherwise we may run into infinite loop during foreground GC because
target blocks in victim segment are belong to atomic opened file for
long time.
Now, we will detect failure due to atomic write in foreground GC, if
the count exceeds threshold, we will drop all atomic written data in
cache, by this, I expect it can keep our system running safely to
prevent Dos attack.
In addition, his patch adds to show GC skip information in debugfs,
now it just shows count of skipped caused by atomic write.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-05-07 06:28:54 -06:00
|
|
|
|
2014-10-06 18:39:50 -06:00
|
|
|
struct inmem_pages {
|
|
|
|
struct list_head list;
|
|
|
|
struct page *page;
|
f2fs: support revoking atomic written pages
f2fs support atomic write with following semantics:
1. open db file
2. ioctl start atomic write
3. (write db file) * n
4. ioctl commit atomic write
5. close db file
With this flow we can avoid file becoming corrupted when abnormal power
cut, because we hold data of transaction in referenced pages linked in
inmem_pages list of inode, but without setting them dirty, so these data
won't be persisted unless we commit them in step 4.
But we should still hold journal db file in memory by using volatile
write, because our semantics of 'atomic write support' is incomplete, in
step 4, we could fail to submit all dirty data of transaction, once
partial dirty data was committed in storage, then after a checkpoint &
abnormal power-cut, db file will be corrupted forever.
So this patch tries to improve atomic write flow by adding a revoking flow,
once inner error occurs in committing, this gives another chance to try to
revoke these partial submitted data of current transaction, it makes
committing operation more like aotmical one.
If we're not lucky, once revoking operation was failed, EAGAIN will be
reported to user for suggesting doing the recovery with held journal file,
or retrying current transaction again.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-02-05 23:40:34 -07:00
|
|
|
block_t old_addr; /* for revoking when fail to commit */
|
2014-10-06 18:39:50 -06:00
|
|
|
};
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
struct sit_info {
|
|
|
|
const struct segment_allocation *s_ops;
|
|
|
|
|
|
|
|
block_t sit_base_addr; /* start block address of SIT area */
|
|
|
|
block_t sit_blocks; /* # of blocks used by SIT area */
|
|
|
|
block_t written_valid_blocks; /* # of valid blocks in main area */
|
|
|
|
char *sit_bitmap; /* SIT bitmap pointer */
|
2017-01-07 03:52:34 -07:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
char *sit_bitmap_mir; /* SIT bitmap mirror */
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned int bitmap_size; /* SIT bitmap size */
|
|
|
|
|
2015-02-10 17:44:29 -07:00
|
|
|
unsigned long *tmp_map; /* bitmap for temporal use */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned long *dirty_sentries_bitmap; /* bitmap for dirty sentries */
|
|
|
|
unsigned int dirty_sentries; /* # of dirty sentries */
|
|
|
|
unsigned int sents_per_block; /* # of SIT entries per block */
|
2017-10-30 03:49:53 -06:00
|
|
|
struct rw_semaphore sentry_lock; /* to protect SIT cache */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
struct seg_entry *sentries; /* SIT segment-level cache */
|
|
|
|
struct sec_entry *sec_entries; /* SIT section-level cache */
|
|
|
|
|
|
|
|
/* for cost-benefit algorithm in cleaning procedure */
|
|
|
|
unsigned long long elapsed_time; /* elapsed time after mount */
|
|
|
|
unsigned long long mounted_time; /* mount time */
|
|
|
|
unsigned long long min_mtime; /* min. modification time */
|
|
|
|
unsigned long long max_mtime; /* max. modification time */
|
2017-04-13 16:17:00 -06:00
|
|
|
|
|
|
|
unsigned int last_victim[MAX_GC_POLICY]; /* last victim segment # */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
struct free_segmap_info {
|
|
|
|
unsigned int start_segno; /* start segment number logically */
|
|
|
|
unsigned int free_segments; /* # of free segments */
|
|
|
|
unsigned int free_sections; /* # of free sections */
|
2015-02-11 03:20:38 -07:00
|
|
|
spinlock_t segmap_lock; /* free segmap lock */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned long *free_segmap; /* free segment bitmap */
|
|
|
|
unsigned long *free_secmap; /* free section bitmap */
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Notice: The order of dirty type is same with CURSEG_XXX in f2fs.h */
|
|
|
|
enum dirty_type {
|
|
|
|
DIRTY_HOT_DATA, /* dirty segments assigned as hot data logs */
|
|
|
|
DIRTY_WARM_DATA, /* dirty segments assigned as warm data logs */
|
|
|
|
DIRTY_COLD_DATA, /* dirty segments assigned as cold data logs */
|
|
|
|
DIRTY_HOT_NODE, /* dirty segments assigned as hot node logs */
|
|
|
|
DIRTY_WARM_NODE, /* dirty segments assigned as warm node logs */
|
|
|
|
DIRTY_COLD_NODE, /* dirty segments assigned as cold node logs */
|
|
|
|
DIRTY, /* to count # of dirty segments */
|
|
|
|
PRE, /* to count # of entirely obsolete segments */
|
|
|
|
NR_DIRTY_TYPE
|
|
|
|
};
|
|
|
|
|
|
|
|
struct dirty_seglist_info {
|
|
|
|
const struct victim_selection *v_ops; /* victim selction operation */
|
|
|
|
unsigned long *dirty_segmap[NR_DIRTY_TYPE];
|
|
|
|
struct mutex seglist_lock; /* lock for segment bitmaps */
|
|
|
|
int nr_dirty[NR_DIRTY_TYPE]; /* # of dirty segments */
|
2013-03-30 22:26:03 -06:00
|
|
|
unsigned long *victim_secmap; /* background GC victims */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
};
|
|
|
|
|
|
|
|
/* victim selection function for cleaning and SSR */
|
|
|
|
struct victim_selection {
|
|
|
|
int (*get_victim)(struct f2fs_sb_info *, unsigned int *,
|
|
|
|
int, int, char);
|
|
|
|
};
|
|
|
|
|
|
|
|
/* for active log information */
|
|
|
|
struct curseg_info {
|
|
|
|
struct mutex curseg_mutex; /* lock for consistency */
|
|
|
|
struct f2fs_summary_block *sum_blk; /* cached summary block */
|
f2fs: split journal cache from curseg cache
In curseg cache, f2fs caches two different parts:
- datas of current summay block, i.e. summary entries, footer info.
- journal info, i.e. sparse nat/sit entries or io stat info.
With this approach, 1) it may cause higher lock contention when we access
or update both of the parts of cache since we use the same mutex lock
curseg_mutex to protect the cache. 2) current summary block with last
journal info will be writebacked into device as a normal summary block
when flushing, however, we treat journal info as valid one only in current
summary, so most normal summary blocks contain junk journal data, it wastes
remaining space of summary block.
So, in order to fix above issues, we split curseg cache into two parts:
a) current summary block, protected by original mutex lock curseg_mutex
b) journal cache, protected by newly introduced r/w semaphore journal_rwsem
When loading curseg cache during ->mount, we store summary info and
journal info into different caches; When doing checkpoint, we combine
datas of two cache into current summary block for persisting.
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-02-19 03:08:46 -07:00
|
|
|
struct rw_semaphore journal_rwsem; /* protect journal area */
|
|
|
|
struct f2fs_journal *journal; /* cached journal info */
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned char alloc_type; /* current allocation type */
|
|
|
|
unsigned int segno; /* current segment number */
|
|
|
|
unsigned short next_blkoff; /* next block offset to write */
|
|
|
|
unsigned int zone; /* current zone number */
|
|
|
|
unsigned int next_segno; /* preallocated segment */
|
|
|
|
};
|
|
|
|
|
f2fs: refactor flush_sit_entries codes for reducing SIT writes
In commit aec71382c681 ("f2fs: refactor flush_nat_entries codes for reducing NAT
writes"), we descripte the issue as below:
"Although building NAT journal in cursum reduce the read/write work for NAT
block, but previous design leave us lower performance when write checkpoint
frequently for these cases:
1. if journal in cursum has already full, it's a bit of waste that we flush all
nat entries to page for persistence, but not to cache any entries.
2. if journal in cursum is not full, we fill nat entries to journal util
journal is full, then flush the left dirty entries to disk without merge
journaled entries, so these journaled entries may be flushed to disk at next
checkpoint but lost chance to flushed last time."
Actually, we have the same problem in using SIT journal area.
In this patch, firstly we will update sit journal with dirty entries as many as
possible. Secondly if there is no space in sit journal, we will remove all
entries in journal and walk through the whole dirty entry bitmap of sit,
accounting dirty sit entries located in same SIT block to sit entry set. All
entry sets are linked to list sit_entry_set in sm_info, sorted ascending order
by count of entries in set. Later we flush entries in set which have fewest
entries into journal as many as we can, and then flush dense set with merged
entries to disk.
In this way we can use sit journal area more effectively, also we will reduce
SIT update, result in gaining in performance and saving lifetime of flash
device.
In my testing environment, it shows this patch can help to reduce SIT block
update obviously.
virtual machine + hard disk:
fsstress -p 20 -n 400 -l 5
sit page num cp count sit pages/cp
based 2006.50 1349.75 1.486
patched 1566.25 1463.25 1.070
Our latency of merging op is small when handling a great number of dirty SIT
entries in flush_sit_entries:
latency(ns) dirty sit count
36038 2151
49168 2123
37174 2232
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-04 04:13:01 -06:00
|
|
|
struct sit_entry_set {
|
|
|
|
struct list_head set_list; /* link with all sit sets */
|
|
|
|
unsigned int start_segno; /* start segno of sits in set */
|
|
|
|
unsigned int entry_cnt; /* the # of sit entries in set */
|
|
|
|
};
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
/*
|
|
|
|
* inline functions
|
|
|
|
*/
|
|
|
|
static inline struct curseg_info *CURSEG_I(struct f2fs_sb_info *sbi, int type)
|
|
|
|
{
|
|
|
|
return (struct curseg_info *)(SM_I(sbi)->curseg_array + type);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct seg_entry *get_seg_entry(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
|
|
|
return &sit_i->sentries[segno];
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline struct sec_entry *get_sec_entry(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
2017-04-07 16:08:17 -06:00
|
|
|
return &sit_i->sec_entries[GET_SEC_FROM_SEG(sbi, segno)];
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int get_valid_blocks(struct f2fs_sb_info *sbi,
|
2017-04-07 15:33:22 -06:00
|
|
|
unsigned int segno, bool use_section)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
{
|
|
|
|
/*
|
|
|
|
* In order to get # of valid blocks in a section instantly from many
|
|
|
|
* segments, f2fs manages two counting structures separately.
|
|
|
|
*/
|
2017-04-07 15:33:22 -06:00
|
|
|
if (use_section && sbi->segs_per_sec > 1)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
return get_sec_entry(sbi, segno)->valid_blocks;
|
|
|
|
else
|
|
|
|
return get_seg_entry(sbi, segno)->valid_blocks;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void seg_info_from_raw_sit(struct seg_entry *se,
|
|
|
|
struct f2fs_sit_entry *rs)
|
|
|
|
{
|
|
|
|
se->valid_blocks = GET_SIT_VBLOCKS(rs);
|
|
|
|
se->ckpt_valid_blocks = GET_SIT_VBLOCKS(rs);
|
|
|
|
memcpy(se->cur_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
|
|
|
|
memcpy(se->ckpt_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
|
2017-01-07 03:51:01 -07:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
memcpy(se->cur_valid_map_mir, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
se->type = GET_SIT_TYPE(rs);
|
|
|
|
se->mtime = le64_to_cpu(rs->mtime);
|
|
|
|
}
|
|
|
|
|
f2fs: rebuild sit page from sit info in mem
This patch rebuild sit page from sit info in mem instead
of issue a read io.
I test this method and the result is as below:
Pre:
mmc_perf_test-12061 [001] ...1 976.819992: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 976.856446: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 998.976946: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 999.023269: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1022.060772: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1022.111034: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1070.127643: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1070.187352: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1095.942124: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1095.995975: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1122.535091: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1122.586521: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [001] ...1 1147.897487: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 1147.959438: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1177.926951: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1177.976823: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1204.176087: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1204.239046: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Some sit flush consume more than 50ms.
Now:
mmc_perf_test-2187 [007] ...1 196.840684: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 196.841258: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [007] ...1 219.430582: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 219.431144: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 243.638678: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 243.638980: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 265.392180: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [002] ...1 265.392245: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 290.309051: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 290.309116: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 317.144209: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 317.145913: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [005] ...1 343.224954: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [005] ...1 343.225574: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 370.239846: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 370.241138: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [001] ...1 397.029043: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [001] ...1 397.030750: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 425.386377: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 425.387735: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Most sit flush consume no more than 1ms.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-01-25 02:27:11 -07:00
|
|
|
static inline void __seg_info_to_raw_sit(struct seg_entry *se,
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
struct f2fs_sit_entry *rs)
|
|
|
|
{
|
|
|
|
unsigned short raw_vblocks = (se->type << SIT_VBLOCKS_SHIFT) |
|
|
|
|
se->valid_blocks;
|
|
|
|
rs->vblocks = cpu_to_le16(raw_vblocks);
|
|
|
|
memcpy(rs->valid_map, se->cur_valid_map, SIT_VBLOCK_MAP_SIZE);
|
f2fs: rebuild sit page from sit info in mem
This patch rebuild sit page from sit info in mem instead
of issue a read io.
I test this method and the result is as below:
Pre:
mmc_perf_test-12061 [001] ...1 976.819992: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 976.856446: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 998.976946: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 999.023269: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1022.060772: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1022.111034: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1070.127643: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1070.187352: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1095.942124: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1095.995975: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1122.535091: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1122.586521: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [001] ...1 1147.897487: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 1147.959438: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1177.926951: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1177.976823: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1204.176087: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1204.239046: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Some sit flush consume more than 50ms.
Now:
mmc_perf_test-2187 [007] ...1 196.840684: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 196.841258: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [007] ...1 219.430582: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 219.431144: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 243.638678: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 243.638980: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 265.392180: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [002] ...1 265.392245: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 290.309051: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 290.309116: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 317.144209: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 317.145913: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [005] ...1 343.224954: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [005] ...1 343.225574: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 370.239846: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 370.241138: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [001] ...1 397.029043: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [001] ...1 397.030750: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 425.386377: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 425.387735: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Most sit flush consume no more than 1ms.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-01-25 02:27:11 -07:00
|
|
|
rs->mtime = cpu_to_le64(se->mtime);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void seg_info_to_sit_page(struct f2fs_sb_info *sbi,
|
|
|
|
struct page *page, unsigned int start)
|
|
|
|
{
|
|
|
|
struct f2fs_sit_block *raw_sit;
|
|
|
|
struct seg_entry *se;
|
|
|
|
struct f2fs_sit_entry *rs;
|
|
|
|
unsigned int end = min(start + SIT_ENTRY_PER_BLOCK,
|
|
|
|
(unsigned long)MAIN_SEGS(sbi));
|
|
|
|
int i;
|
|
|
|
|
|
|
|
raw_sit = (struct f2fs_sit_block *)page_address(page);
|
2018-04-09 06:25:06 -06:00
|
|
|
memset(raw_sit, 0, PAGE_SIZE);
|
f2fs: rebuild sit page from sit info in mem
This patch rebuild sit page from sit info in mem instead
of issue a read io.
I test this method and the result is as below:
Pre:
mmc_perf_test-12061 [001] ...1 976.819992: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 976.856446: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 998.976946: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 999.023269: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1022.060772: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1022.111034: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1070.127643: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1070.187352: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1095.942124: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1095.995975: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1122.535091: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [003] ...1 1122.586521: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [001] ...1 1147.897487: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [001] ...1 1147.959438: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [003] ...1 1177.926951: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1177.976823: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-12061 [002] ...1 1204.176087: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-12061 [002] ...1 1204.239046: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Some sit flush consume more than 50ms.
Now:
mmc_perf_test-2187 [007] ...1 196.840684: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 196.841258: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [007] ...1 219.430582: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [007] ...1 219.431144: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 243.638678: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 243.638980: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [002] ...1 265.392180: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [002] ...1 265.392245: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 290.309051: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 290.309116: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 317.144209: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 317.145913: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [005] ...1 343.224954: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [005] ...1 343.225574: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [000] ...1 370.239846: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [000] ...1 370.241138: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [001] ...1 397.029043: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [001] ...1 397.030750: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
mmc_perf_test-2187 [003] ...1 425.386377: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = start flush sit
mmc_perf_test-2187 [003] ...1 425.387735: f2fs_write_checkpoint: dev = (259,44), checkpoint for Sync, state = end flush sit
Most sit flush consume no more than 1ms.
Signed-off-by: Yunlei He <heyunlei@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-01-25 02:27:11 -07:00
|
|
|
for (i = 0; i < end - start; i++) {
|
|
|
|
rs = &raw_sit->entries[i];
|
|
|
|
se = get_seg_entry(sbi, start + i);
|
|
|
|
__seg_info_to_raw_sit(se, rs);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void seg_info_to_raw_sit(struct seg_entry *se,
|
|
|
|
struct f2fs_sit_entry *rs)
|
|
|
|
{
|
|
|
|
__seg_info_to_raw_sit(se, rs);
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
memcpy(se->ckpt_valid_map, rs->valid_map, SIT_VBLOCK_MAP_SIZE);
|
|
|
|
se->ckpt_valid_blocks = se->valid_blocks;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int find_next_inuse(struct free_segmap_info *free_i,
|
|
|
|
unsigned int max, unsigned int segno)
|
|
|
|
{
|
|
|
|
unsigned int ret;
|
2015-02-11 03:20:38 -07:00
|
|
|
spin_lock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
ret = find_next_bit(free_i->free_segmap, max, segno);
|
2015-02-11 03:20:38 -07:00
|
|
|
spin_unlock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void __set_free(struct f2fs_sb_info *sbi, unsigned int segno)
|
|
|
|
{
|
|
|
|
struct free_segmap_info *free_i = FREE_I(sbi);
|
2017-04-07 16:08:17 -06:00
|
|
|
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
|
|
|
|
unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned int next;
|
|
|
|
|
2015-02-11 03:20:38 -07:00
|
|
|
spin_lock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
clear_bit(segno, free_i->free_segmap);
|
|
|
|
free_i->free_segments++;
|
|
|
|
|
2015-03-06 00:00:55 -07:00
|
|
|
next = find_next_bit(free_i->free_segmap,
|
|
|
|
start_segno + sbi->segs_per_sec, start_segno);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
if (next >= start_segno + sbi->segs_per_sec) {
|
|
|
|
clear_bit(secno, free_i->free_secmap);
|
|
|
|
free_i->free_sections++;
|
|
|
|
}
|
2015-02-11 03:20:38 -07:00
|
|
|
spin_unlock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline void __set_inuse(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct free_segmap_info *free_i = FREE_I(sbi);
|
2017-04-07 16:08:17 -06:00
|
|
|
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
set_bit(segno, free_i->free_segmap);
|
|
|
|
free_i->free_segments--;
|
|
|
|
if (!test_and_set_bit(secno, free_i->free_secmap))
|
|
|
|
free_i->free_sections--;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void __set_test_and_free(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct free_segmap_info *free_i = FREE_I(sbi);
|
2017-04-07 16:08:17 -06:00
|
|
|
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
|
|
|
|
unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
unsigned int next;
|
|
|
|
|
2015-02-11 03:20:38 -07:00
|
|
|
spin_lock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
if (test_and_clear_bit(segno, free_i->free_segmap)) {
|
|
|
|
free_i->free_segments++;
|
|
|
|
|
2018-07-12 09:09:26 -06:00
|
|
|
if (IS_CURSEC(sbi, secno))
|
|
|
|
goto skip_free;
|
2014-07-14 02:45:15 -06:00
|
|
|
next = find_next_bit(free_i->free_segmap,
|
|
|
|
start_segno + sbi->segs_per_sec, start_segno);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
if (next >= start_segno + sbi->segs_per_sec) {
|
|
|
|
if (test_and_clear_bit(secno, free_i->free_secmap))
|
|
|
|
free_i->free_sections++;
|
|
|
|
}
|
|
|
|
}
|
2018-07-12 09:09:26 -06:00
|
|
|
skip_free:
|
2015-02-11 03:20:38 -07:00
|
|
|
spin_unlock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline void __set_test_and_inuse(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int segno)
|
|
|
|
{
|
|
|
|
struct free_segmap_info *free_i = FREE_I(sbi);
|
2017-04-07 16:08:17 -06:00
|
|
|
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
|
|
|
|
|
2015-02-11 03:20:38 -07:00
|
|
|
spin_lock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
if (!test_and_set_bit(segno, free_i->free_segmap)) {
|
|
|
|
free_i->free_segments--;
|
|
|
|
if (!test_and_set_bit(secno, free_i->free_secmap))
|
|
|
|
free_i->free_sections--;
|
|
|
|
}
|
2015-02-11 03:20:38 -07:00
|
|
|
spin_unlock(&free_i->segmap_lock);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline void get_sit_bitmap(struct f2fs_sb_info *sbi,
|
|
|
|
void *dst_addr)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
2017-01-07 03:52:34 -07:00
|
|
|
|
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
if (memcmp(sit_i->sit_bitmap, sit_i->sit_bitmap_mir,
|
|
|
|
sit_i->bitmap_size))
|
|
|
|
f2fs_bug_on(sbi, 1);
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
memcpy(dst_addr, sit_i->sit_bitmap, sit_i->bitmap_size);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline block_t written_block_count(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-02-23 21:00:13 -07:00
|
|
|
return SIT_I(sbi)->written_valid_blocks;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int free_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-02-23 21:00:13 -07:00
|
|
|
return FREE_I(sbi)->free_segments;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline int reserved_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return SM_I(sbi)->reserved_segments;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int free_sections(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-02-23 21:00:13 -07:00
|
|
|
return FREE_I(sbi)->free_sections;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int prefree_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return DIRTY_I(sbi)->nr_dirty[PRE];
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned int dirty_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return DIRTY_I(sbi)->nr_dirty[DIRTY_HOT_DATA] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_WARM_DATA] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_COLD_DATA] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_HOT_NODE] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_WARM_NODE] +
|
|
|
|
DIRTY_I(sbi)->nr_dirty[DIRTY_COLD_NODE];
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int overprovision_segments(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return SM_I(sbi)->ovp_segments;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline int reserved_sections(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2017-04-07 16:08:17 -06:00
|
|
|
return GET_SEC_FROM_SEG(sbi, (unsigned int)reserved_segments(sbi));
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
2017-10-30 03:49:54 -06:00
|
|
|
static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
unsigned int node_blocks = get_pages(sbi, F2FS_DIRTY_NODES) +
|
|
|
|
get_pages(sbi, F2FS_DIRTY_DENTS);
|
|
|
|
unsigned int dent_blocks = get_pages(sbi, F2FS_DIRTY_DENTS);
|
|
|
|
unsigned int segno, left_blocks;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/* check current node segment */
|
|
|
|
for (i = CURSEG_HOT_NODE; i <= CURSEG_COLD_NODE; i++) {
|
|
|
|
segno = CURSEG_I(sbi, i)->segno;
|
|
|
|
left_blocks = sbi->blocks_per_seg -
|
|
|
|
get_seg_entry(sbi, segno)->ckpt_valid_blocks;
|
|
|
|
|
|
|
|
if (node_blocks > left_blocks)
|
|
|
|
return false;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* check current data segment */
|
|
|
|
segno = CURSEG_I(sbi, CURSEG_HOT_DATA)->segno;
|
|
|
|
left_blocks = sbi->blocks_per_seg -
|
|
|
|
get_seg_entry(sbi, segno)->ckpt_valid_blocks;
|
|
|
|
if (dent_blocks > left_blocks)
|
|
|
|
return false;
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2016-09-01 13:02:51 -06:00
|
|
|
static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi,
|
|
|
|
int freed, int needed)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
{
|
2013-02-02 07:52:59 -07:00
|
|
|
int node_secs = get_blocktype_secs(sbi, F2FS_DIRTY_NODES);
|
|
|
|
int dent_secs = get_blocktype_secs(sbi, F2FS_DIRTY_DENTS);
|
2016-10-14 14:28:05 -06:00
|
|
|
int imeta_secs = get_blocktype_secs(sbi, F2FS_DIRTY_IMETA);
|
2016-05-20 12:10:10 -06:00
|
|
|
|
2015-01-28 02:48:42 -07:00
|
|
|
if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
|
2012-12-21 01:20:21 -07:00
|
|
|
return false;
|
|
|
|
|
2017-10-30 03:49:54 -06:00
|
|
|
if (free_sections(sbi) + freed == reserved_sections(sbi) + needed &&
|
|
|
|
has_curseg_enough_space(sbi))
|
|
|
|
return false;
|
2016-09-01 13:02:51 -06:00
|
|
|
return (free_sections(sbi) + freed) <=
|
2016-10-14 14:28:05 -06:00
|
|
|
(node_secs + 2 * dent_secs + imeta_secs +
|
|
|
|
reserved_sections(sbi) + needed);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
2013-10-23 22:31:34 -06:00
|
|
|
static inline bool excess_prefree_segs(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-01-17 13:44:39 -07:00
|
|
|
return prefree_segments(sbi) > SM_I(sbi)->rec_prefree_segments;
|
2013-10-23 22:31:34 -06:00
|
|
|
}
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
static inline int utilization(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
2014-01-17 13:44:39 -07:00
|
|
|
return div_u64((u64)valid_user_blocks(sbi) * 100,
|
|
|
|
sbi->user_block_count);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Sometimes f2fs may be better to drop out-of-place update policy.
|
2013-11-06 21:13:42 -07:00
|
|
|
* And, users can control the policy through sysfs entries.
|
|
|
|
* There are five policies with triggering conditions as follows.
|
|
|
|
* F2FS_IPU_FORCE - all the time,
|
|
|
|
* F2FS_IPU_SSR - if SSR mode is activated,
|
|
|
|
* F2FS_IPU_UTIL - if FS utilization is over threashold,
|
|
|
|
* F2FS_IPU_SSR_UTIL - if SSR mode is activated and FS utilization is over
|
|
|
|
* threashold,
|
2014-09-10 17:53:02 -06:00
|
|
|
* F2FS_IPU_FSYNC - activated in fsync path only for high performance flash
|
|
|
|
* storages. IPU will be triggered only if the # of dirty
|
|
|
|
* pages over min_fsync_blocks.
|
2013-11-06 21:13:42 -07:00
|
|
|
* F2FS_IPUT_DISABLE - disable IPU. (=default option)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
*/
|
2013-11-06 21:13:42 -07:00
|
|
|
#define DEF_MIN_IPU_UTIL 70
|
2014-09-10 17:53:02 -06:00
|
|
|
#define DEF_MIN_FSYNC_BLOCKS 8
|
2017-03-24 18:05:13 -06:00
|
|
|
#define DEF_MIN_HOT_BLOCKS 16
|
2013-11-06 21:13:42 -07:00
|
|
|
|
2018-02-22 15:09:30 -07:00
|
|
|
#define SMALL_VOLUME_SEGMENTS (16 * 512) /* 16GB */
|
|
|
|
|
2013-11-06 21:13:42 -07:00
|
|
|
enum {
|
|
|
|
F2FS_IPU_FORCE,
|
|
|
|
F2FS_IPU_SSR,
|
|
|
|
F2FS_IPU_UTIL,
|
|
|
|
F2FS_IPU_SSR_UTIL,
|
2014-09-10 17:53:02 -06:00
|
|
|
F2FS_IPU_FSYNC,
|
2017-04-18 05:57:16 -06:00
|
|
|
F2FS_IPU_ASYNC,
|
2013-11-06 21:13:42 -07:00
|
|
|
};
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
static inline unsigned int curseg_segno(struct f2fs_sb_info *sbi,
|
|
|
|
int type)
|
|
|
|
{
|
|
|
|
struct curseg_info *curseg = CURSEG_I(sbi, type);
|
|
|
|
return curseg->segno;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned char curseg_alloc_type(struct f2fs_sb_info *sbi,
|
|
|
|
int type)
|
|
|
|
{
|
|
|
|
struct curseg_info *curseg = CURSEG_I(sbi, type);
|
|
|
|
return curseg->alloc_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline unsigned short curseg_blkoff(struct f2fs_sb_info *sbi, int type)
|
|
|
|
{
|
|
|
|
struct curseg_info *curseg = CURSEG_I(sbi, type);
|
|
|
|
return curseg->next_blkoff;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
|
|
|
|
{
|
2015-07-27 04:17:59 -06:00
|
|
|
f2fs_bug_on(sbi, segno > TOTAL_SEGS(sbi) - 1);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
2018-03-08 01:29:13 -07:00
|
|
|
static inline void verify_block_addr(struct f2fs_io_info *fio, block_t blk_addr)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
{
|
2018-03-08 01:29:13 -07:00
|
|
|
struct f2fs_sb_info *sbi = fio->sbi;
|
|
|
|
|
f2fs: fix to do sanity check with block address in main area
This patch add to do sanity check with below field:
- cp_pack_total_block_count
- blkaddr of data/node
- extent info
- Overview
BUG() in verify_block_addr() when writing to a corrupted f2fs image
- Reproduce (4.18 upstream kernel)
- POC (poc.c)
static void activity(char *mpoint) {
char *foo_bar_baz;
int err;
static int buf[8192];
memset(buf, 0, sizeof(buf));
err = asprintf(&foo_bar_baz, "%s/foo/bar/baz", mpoint);
int fd = open(foo_bar_baz, O_RDWR | O_TRUNC, 0777);
if (fd >= 0) {
write(fd, (char *)buf, sizeof(buf));
fdatasync(fd);
close(fd);
}
}
int main(int argc, char *argv[]) {
activity(argv[1]);
return 0;
}
- Kernel message
[ 689.349473] F2FS-fs (loop0): Mounted with checkpoint version = 3
[ 699.728662] WARNING: CPU: 0 PID: 1309 at fs/f2fs/segment.c:2860 f2fs_inplace_write_data+0x232/0x240
[ 699.728670] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd mac_hid i2c_piix4 soundcore ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid1 raid0 multipath linear 8139too crct10dif_pclmul crc32_pclmul qxl drm_kms_helper syscopyarea aesni_intel sysfillrect sysimgblt fb_sys_fops ttm drm aes_x86_64 crypto_simd cryptd 8139cp glue_helper mii pata_acpi floppy
[ 699.729056] CPU: 0 PID: 1309 Comm: a.out Not tainted 4.18.0-rc1+ #4
[ 699.729064] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 699.729074] RIP: 0010:f2fs_inplace_write_data+0x232/0x240
[ 699.729076] Code: ff e9 cf fe ff ff 49 8d 7d 10 e8 39 45 ad ff 4d 8b 7d 10 be 04 00 00 00 49 8d 7f 48 e8 07 49 ad ff 45 8b 7f 48 e9 fb fe ff ff <0f> 0b f0 41 80 4d 48 04 e9 65 fe ff ff 90 66 66 66 66 90 55 48 8d
[ 699.729130] RSP: 0018:ffff8801f43af568 EFLAGS: 00010202
[ 699.729139] RAX: 000000000000003f RBX: ffff8801f43af7b8 RCX: ffffffffb88c9113
[ 699.729142] RDX: 0000000000000003 RSI: dffffc0000000000 RDI: ffff8802024e5540
[ 699.729144] RBP: ffff8801f43af590 R08: 0000000000000009 R09: ffffffffffffffe8
[ 699.729147] R10: 0000000000000001 R11: ffffed0039b0596a R12: ffff8802024e5540
[ 699.729149] R13: ffff8801f0335500 R14: ffff8801e3e7a700 R15: ffff8801e1ee4450
[ 699.729154] FS: 00007f9bf97f5700(0000) GS:ffff8801f6e00000(0000) knlGS:0000000000000000
[ 699.729156] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 699.729159] CR2: 00007f9bf925d170 CR3: 00000001f0c34000 CR4: 00000000000006f0
[ 699.729171] Call Trace:
[ 699.729192] f2fs_do_write_data_page+0x2e2/0xe00
[ 699.729203] ? f2fs_should_update_outplace+0xd0/0xd0
[ 699.729238] ? memcg_drain_all_list_lrus+0x280/0x280
[ 699.729269] ? __radix_tree_replace+0xa3/0x120
[ 699.729276] __write_data_page+0x5c7/0xe30
[ 699.729291] ? kasan_check_read+0x11/0x20
[ 699.729310] ? page_mapped+0x8a/0x110
[ 699.729321] ? page_mkclean+0xe9/0x160
[ 699.729327] ? f2fs_do_write_data_page+0xe00/0xe00
[ 699.729331] ? invalid_page_referenced_vma+0x130/0x130
[ 699.729345] ? clear_page_dirty_for_io+0x332/0x450
[ 699.729351] f2fs_write_cache_pages+0x4ca/0x860
[ 699.729358] ? __write_data_page+0xe30/0xe30
[ 699.729374] ? percpu_counter_add_batch+0x22/0xa0
[ 699.729380] ? kasan_check_write+0x14/0x20
[ 699.729391] ? _raw_spin_lock+0x17/0x40
[ 699.729403] ? f2fs_mark_inode_dirty_sync.part.18+0x16/0x30
[ 699.729413] ? iov_iter_advance+0x113/0x640
[ 699.729418] ? f2fs_write_end+0x133/0x2e0
[ 699.729423] ? balance_dirty_pages_ratelimited+0x239/0x640
[ 699.729428] f2fs_write_data_pages+0x329/0x520
[ 699.729433] ? generic_perform_write+0x250/0x320
[ 699.729438] ? f2fs_write_cache_pages+0x860/0x860
[ 699.729454] ? current_time+0x110/0x110
[ 699.729459] ? f2fs_preallocate_blocks+0x1ef/0x370
[ 699.729464] do_writepages+0x37/0xb0
[ 699.729468] ? f2fs_write_cache_pages+0x860/0x860
[ 699.729472] ? do_writepages+0x37/0xb0
[ 699.729478] __filemap_fdatawrite_range+0x19a/0x1f0
[ 699.729483] ? delete_from_page_cache_batch+0x4e0/0x4e0
[ 699.729496] ? __vfs_write+0x2b2/0x410
[ 699.729501] file_write_and_wait_range+0x66/0xb0
[ 699.729506] f2fs_do_sync_file+0x1f9/0xd90
[ 699.729511] ? truncate_partial_data_page+0x290/0x290
[ 699.729521] ? __sb_end_write+0x30/0x50
[ 699.729526] ? vfs_write+0x20f/0x260
[ 699.729530] f2fs_sync_file+0x9a/0xb0
[ 699.729534] ? f2fs_do_sync_file+0xd90/0xd90
[ 699.729548] vfs_fsync_range+0x68/0x100
[ 699.729554] ? __fget_light+0xc9/0xe0
[ 699.729558] do_fsync+0x3d/0x70
[ 699.729562] __x64_sys_fdatasync+0x24/0x30
[ 699.729585] do_syscall_64+0x78/0x170
[ 699.729595] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 699.729613] RIP: 0033:0x7f9bf930d800
[ 699.729615] Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 49 bf 2c 00 00 75 10 b8 4b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be 78 01 00 48 89 04 24
[ 699.729668] RSP: 002b:00007ffee3606c68 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
[ 699.729673] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9bf930d800
[ 699.729675] RDX: 0000000000008000 RSI: 00000000006010a0 RDI: 0000000000000003
[ 699.729678] RBP: 00007ffee3606ca0 R08: 0000000001503010 R09: 0000000000000000
[ 699.729680] R10: 00000000000002e8 R11: 0000000000000246 R12: 0000000000400610
[ 699.729683] R13: 00007ffee3606da0 R14: 0000000000000000 R15: 0000000000000000
[ 699.729687] ---[ end trace 4ce02f25ff7d3df5 ]---
[ 699.729782] ------------[ cut here ]------------
[ 699.729785] kernel BUG at fs/f2fs/segment.h:654!
[ 699.731055] invalid opcode: 0000 [#1] SMP KASAN PTI
[ 699.732104] CPU: 0 PID: 1309 Comm: a.out Tainted: G W 4.18.0-rc1+ #4
[ 699.733684] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 699.735611] RIP: 0010:f2fs_submit_page_bio+0x29b/0x730
[ 699.736649] Code: 54 49 8d bd 18 04 00 00 e8 b2 59 af ff 41 8b 8d 18 04 00 00 8b 45 b8 41 d3 e6 44 01 f0 4c 8d 73 14 41 39 c7 0f 82 37 fe ff ff <0f> 0b 65 8b 05 2c 04 77 47 89 c0 48 0f a3 05 52 c1 d5 01 0f 92 c0
[ 699.740524] RSP: 0018:ffff8801f43af508 EFLAGS: 00010283
[ 699.741573] RAX: 0000000000000000 RBX: ffff8801f43af7b8 RCX: ffffffffb88a7cef
[ 699.743006] RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffff8801e3e7a64c
[ 699.744426] RBP: ffff8801f43af558 R08: ffffed003e066b55 R09: ffffed003e066b55
[ 699.745833] R10: 0000000000000001 R11: ffffed003e066b54 R12: ffffea0007876940
[ 699.747256] R13: ffff8801f0335500 R14: ffff8801e3e7a600 R15: 0000000000000001
[ 699.748683] FS: 00007f9bf97f5700(0000) GS:ffff8801f6e00000(0000) knlGS:0000000000000000
[ 699.750293] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 699.751462] CR2: 00007f9bf925d170 CR3: 00000001f0c34000 CR4: 00000000000006f0
[ 699.752874] Call Trace:
[ 699.753386] ? f2fs_inplace_write_data+0x93/0x240
[ 699.754341] f2fs_inplace_write_data+0xd2/0x240
[ 699.755271] f2fs_do_write_data_page+0x2e2/0xe00
[ 699.756214] ? f2fs_should_update_outplace+0xd0/0xd0
[ 699.757215] ? memcg_drain_all_list_lrus+0x280/0x280
[ 699.758209] ? __radix_tree_replace+0xa3/0x120
[ 699.759164] __write_data_page+0x5c7/0xe30
[ 699.760002] ? kasan_check_read+0x11/0x20
[ 699.760823] ? page_mapped+0x8a/0x110
[ 699.761573] ? page_mkclean+0xe9/0x160
[ 699.762345] ? f2fs_do_write_data_page+0xe00/0xe00
[ 699.763332] ? invalid_page_referenced_vma+0x130/0x130
[ 699.764374] ? clear_page_dirty_for_io+0x332/0x450
[ 699.765347] f2fs_write_cache_pages+0x4ca/0x860
[ 699.766276] ? __write_data_page+0xe30/0xe30
[ 699.767161] ? percpu_counter_add_batch+0x22/0xa0
[ 699.768112] ? kasan_check_write+0x14/0x20
[ 699.768951] ? _raw_spin_lock+0x17/0x40
[ 699.769739] ? f2fs_mark_inode_dirty_sync.part.18+0x16/0x30
[ 699.770885] ? iov_iter_advance+0x113/0x640
[ 699.771743] ? f2fs_write_end+0x133/0x2e0
[ 699.772569] ? balance_dirty_pages_ratelimited+0x239/0x640
[ 699.773680] f2fs_write_data_pages+0x329/0x520
[ 699.774603] ? generic_perform_write+0x250/0x320
[ 699.775544] ? f2fs_write_cache_pages+0x860/0x860
[ 699.776510] ? current_time+0x110/0x110
[ 699.777299] ? f2fs_preallocate_blocks+0x1ef/0x370
[ 699.778279] do_writepages+0x37/0xb0
[ 699.779026] ? f2fs_write_cache_pages+0x860/0x860
[ 699.779978] ? do_writepages+0x37/0xb0
[ 699.780755] __filemap_fdatawrite_range+0x19a/0x1f0
[ 699.781746] ? delete_from_page_cache_batch+0x4e0/0x4e0
[ 699.782820] ? __vfs_write+0x2b2/0x410
[ 699.783597] file_write_and_wait_range+0x66/0xb0
[ 699.784540] f2fs_do_sync_file+0x1f9/0xd90
[ 699.785381] ? truncate_partial_data_page+0x290/0x290
[ 699.786415] ? __sb_end_write+0x30/0x50
[ 699.787204] ? vfs_write+0x20f/0x260
[ 699.787941] f2fs_sync_file+0x9a/0xb0
[ 699.788694] ? f2fs_do_sync_file+0xd90/0xd90
[ 699.789572] vfs_fsync_range+0x68/0x100
[ 699.790360] ? __fget_light+0xc9/0xe0
[ 699.791128] do_fsync+0x3d/0x70
[ 699.791779] __x64_sys_fdatasync+0x24/0x30
[ 699.792614] do_syscall_64+0x78/0x170
[ 699.793371] entry_SYSCALL_64_after_hwframe+0x44/0xa9
[ 699.794406] RIP: 0033:0x7f9bf930d800
[ 699.795134] Code: 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 83 3d 49 bf 2c 00 00 75 10 b8 4b 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 be 78 01 00 48 89 04 24
[ 699.798960] RSP: 002b:00007ffee3606c68 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
[ 699.800483] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9bf930d800
[ 699.801923] RDX: 0000000000008000 RSI: 00000000006010a0 RDI: 0000000000000003
[ 699.803373] RBP: 00007ffee3606ca0 R08: 0000000001503010 R09: 0000000000000000
[ 699.804798] R10: 00000000000002e8 R11: 0000000000000246 R12: 0000000000400610
[ 699.806233] R13: 00007ffee3606da0 R14: 0000000000000000 R15: 0000000000000000
[ 699.807667] Modules linked in: snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd mac_hid i2c_piix4 soundcore ib_iser rdma_cm iw_cm ib_cm ib_core iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx raid1 raid0 multipath linear 8139too crct10dif_pclmul crc32_pclmul qxl drm_kms_helper syscopyarea aesni_intel sysfillrect sysimgblt fb_sys_fops ttm drm aes_x86_64 crypto_simd cryptd 8139cp glue_helper mii pata_acpi floppy
[ 699.817079] ---[ end trace 4ce02f25ff7d3df6 ]---
[ 699.818068] RIP: 0010:f2fs_submit_page_bio+0x29b/0x730
[ 699.819114] Code: 54 49 8d bd 18 04 00 00 e8 b2 59 af ff 41 8b 8d 18 04 00 00 8b 45 b8 41 d3 e6 44 01 f0 4c 8d 73 14 41 39 c7 0f 82 37 fe ff ff <0f> 0b 65 8b 05 2c 04 77 47 89 c0 48 0f a3 05 52 c1 d5 01 0f 92 c0
[ 699.822919] RSP: 0018:ffff8801f43af508 EFLAGS: 00010283
[ 699.823977] RAX: 0000000000000000 RBX: ffff8801f43af7b8 RCX: ffffffffb88a7cef
[ 699.825436] RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffff8801e3e7a64c
[ 699.826881] RBP: ffff8801f43af558 R08: ffffed003e066b55 R09: ffffed003e066b55
[ 699.828292] R10: 0000000000000001 R11: ffffed003e066b54 R12: ffffea0007876940
[ 699.829750] R13: ffff8801f0335500 R14: ffff8801e3e7a600 R15: 0000000000000001
[ 699.831192] FS: 00007f9bf97f5700(0000) GS:ffff8801f6e00000(0000) knlGS:0000000000000000
[ 699.832793] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 699.833981] CR2: 00007f9bf925d170 CR3: 00000001f0c34000 CR4: 00000000000006f0
[ 699.835556] ==================================================================
[ 699.837029] BUG: KASAN: stack-out-of-bounds in update_stack_state+0x38c/0x3e0
[ 699.838462] Read of size 8 at addr ffff8801f43af970 by task a.out/1309
[ 699.840086] CPU: 0 PID: 1309 Comm: a.out Tainted: G D W 4.18.0-rc1+ #4
[ 699.841603] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014
[ 699.843475] Call Trace:
[ 699.843982] dump_stack+0x7b/0xb5
[ 699.844661] print_address_description+0x70/0x290
[ 699.845607] kasan_report+0x291/0x390
[ 699.846351] ? update_stack_state+0x38c/0x3e0
[ 699.853831] __asan_load8+0x54/0x90
[ 699.854569] update_stack_state+0x38c/0x3e0
[ 699.855428] ? __read_once_size_nocheck.constprop.7+0x20/0x20
[ 699.856601] ? __save_stack_trace+0x5e/0x100
[ 699.857476] unwind_next_frame.part.5+0x18e/0x490
[ 699.858448] ? unwind_dump+0x290/0x290
[ 699.859217] ? clear_page_dirty_for_io+0x332/0x450
[ 699.860185] __unwind_start+0x106/0x190
[ 699.860974] __save_stack_trace+0x5e/0x100
[ 699.861808] ? __save_stack_trace+0x5e/0x100
[ 699.862691] ? unlink_anon_vmas+0xba/0x2c0
[ 699.863525] save_stack_trace+0x1f/0x30
[ 699.864312] save_stack+0x46/0xd0
[ 699.864993] ? __alloc_pages_slowpath+0x1420/0x1420
[ 699.865990] ? flush_tlb_mm_range+0x15e/0x220
[ 699.866889] ? kasan_check_write+0x14/0x20
[ 699.867724] ? __dec_node_state+0x92/0xb0
[ 699.868543] ? lock_page_memcg+0x85/0xf0
[ 699.869350] ? unlock_page_memcg+0x16/0x80
[ 699.870185] ? page_remove_rmap+0x198/0x520
[ 699.871048] ? mark_page_accessed+0x133/0x200
[ 699.871930] ? _cond_resched+0x1a/0x50
[ 699.872700] ? unmap_page_range+0xcd4/0xe50
[ 699.873551] ? rb_next+0x58/0x80
[ 699.874217] ? rb_next+0x58/0x80
[ 699.874895] __kasan_slab_free+0x13c/0x1a0
[ 699.875734] ? unlink_anon_vmas+0xba/0x2c0
[ 699.876563] kasan_slab_free+0xe/0x10
[ 699.877315] kmem_cache_free+0x89/0x1e0
[ 699.878095] unlink_anon_vmas+0xba/0x2c0
[ 699.878913] free_pgtables+0x101/0x1b0
[ 699.879677] exit_mmap+0x146/0x2a0
[ 699.880378] ? __ia32_sys_munmap+0x50/0x50
[ 699.881214] ? kasan_check_read+0x11/0x20
[ 699.882052] ? mm_update_next_owner+0x322/0x380
[ 699.882985] mmput+0x8b/0x1d0
[ 699.883602] do_exit+0x43a/0x1390
[ 699.884288] ? mm_update_next_owner+0x380/0x380
[ 699.885212] ? f2fs_sync_file+0x9a/0xb0
[ 699.885995] ? f2fs_do_sync_file+0xd90/0xd90
[ 699.886877] ? vfs_fsync_range+0x68/0x100
[ 699.887694] ? __fget_light+0xc9/0xe0
[ 699.888442] ? do_fsync+0x3d/0x70
[ 699.889118] ? __x64_sys_fdatasync+0x24/0x30
[ 699.889996] rewind_stack_do_exit+0x17/0x20
[ 699.890860] RIP: 0033:0x7f9bf930d800
[ 699.891585] Code: Bad RIP value.
[ 699.892268] RSP: 002b:00007ffee3606c68 EFLAGS: 00000246 ORIG_RAX: 000000000000004b
[ 699.893781] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9bf930d800
[ 699.895220] RDX: 0000000000008000 RSI: 00000000006010a0 RDI: 0000000000000003
[ 699.896643] RBP: 00007ffee3606ca0 R08: 0000000001503010 R09: 0000000000000000
[ 699.898069] R10: 00000000000002e8 R11: 0000000000000246 R12: 0000000000400610
[ 699.899505] R13: 00007ffee3606da0 R14: 0000000000000000 R15: 0000000000000000
[ 699.901241] The buggy address belongs to the page:
[ 699.902215] page:ffffea0007d0ebc0 count:0 mapcount:0 mapping:0000000000000000 index:0x0
[ 699.903811] flags: 0x2ffff0000000000()
[ 699.904585] raw: 02ffff0000000000 0000000000000000 ffffffff07d00101 0000000000000000
[ 699.906125] raw: 0000000000000000 0000000000240000 00000000ffffffff 0000000000000000
[ 699.907673] page dumped because: kasan: bad access detected
[ 699.909108] Memory state around the buggy address:
[ 699.910077] ffff8801f43af800: 00 f1 f1 f1 f1 00 f4 f4 f4 f3 f3 f3 f3 00 00 00
[ 699.911528] ffff8801f43af880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[ 699.912953] >ffff8801f43af900: 00 00 00 00 00 00 00 00 f1 01 f4 f4 f4 f2 f2 f2
[ 699.914392] ^
[ 699.915758] ffff8801f43af980: f2 00 f4 f4 00 00 00 00 f2 00 00 00 00 00 00 00
[ 699.917193] ffff8801f43afa00: 00 00 00 00 00 00 00 00 00 f3 f3 f3 00 00 00 00
[ 699.918634] ==================================================================
- Location
https://elixir.bootlin.com/linux/v4.18-rc1/source/fs/f2fs/segment.h#L644
Reported-by Wen Xu <wen.xu@gatech.edu>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2018-08-01 05:13:44 -06:00
|
|
|
if (__is_meta_io(fio))
|
2018-06-05 03:44:11 -06:00
|
|
|
verify_blkaddr(sbi, blk_addr, META_GENERIC);
|
2018-03-08 01:29:13 -07:00
|
|
|
else
|
2018-06-05 03:44:11 -06:00
|
|
|
verify_blkaddr(sbi, blk_addr, DATA_GENERIC);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2014-08-06 08:22:50 -06:00
|
|
|
* Summary block is always treated as an invalid block
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
*/
|
2017-12-19 20:16:34 -07:00
|
|
|
static inline int check_block_count(struct f2fs_sb_info *sbi,
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
int segno, struct f2fs_sit_entry *raw_sit)
|
|
|
|
{
|
2015-08-11 17:01:30 -06:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
2013-10-29 00:50:40 -06:00
|
|
|
bool is_valid = test_bit_le(0, raw_sit->valid_map) ? true : false;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
int valid_blocks = 0;
|
2013-10-29 00:50:40 -06:00
|
|
|
int cur_pos = 0, next_pos;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
|
|
|
|
/* check bitmap with valid block count */
|
2013-10-29 00:50:40 -06:00
|
|
|
do {
|
|
|
|
if (is_valid) {
|
|
|
|
next_pos = find_next_zero_bit_le(&raw_sit->valid_map,
|
|
|
|
sbi->blocks_per_seg,
|
|
|
|
cur_pos);
|
|
|
|
valid_blocks += next_pos - cur_pos;
|
|
|
|
} else
|
|
|
|
next_pos = find_next_bit_le(&raw_sit->valid_map,
|
|
|
|
sbi->blocks_per_seg,
|
|
|
|
cur_pos);
|
|
|
|
cur_pos = next_pos;
|
|
|
|
is_valid = !is_valid;
|
|
|
|
} while (cur_pos < sbi->blocks_per_seg);
|
2017-12-19 20:16:34 -07:00
|
|
|
|
|
|
|
if (unlikely(GET_SIT_VBLOCKS(raw_sit) != valid_blocks)) {
|
|
|
|
f2fs_msg(sbi->sb, KERN_ERR,
|
|
|
|
"Mismatch valid blocks %d vs. %d",
|
|
|
|
GET_SIT_VBLOCKS(raw_sit), valid_blocks);
|
|
|
|
set_sbi_flag(sbi, SBI_NEED_FSCK);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
2013-10-29 00:14:54 -06:00
|
|
|
#endif
|
2015-08-11 17:01:30 -06:00
|
|
|
/* check segment usage, and check boundary of a given segment number */
|
2017-12-19 20:16:34 -07:00
|
|
|
if (unlikely(GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg
|
|
|
|
|| segno > TOTAL_SEGS(sbi) - 1)) {
|
|
|
|
f2fs_msg(sbi->sb, KERN_ERR,
|
|
|
|
"Wrong valid blocks %d or segno %u",
|
|
|
|
GET_SIT_VBLOCKS(raw_sit), segno);
|
|
|
|
set_sbi_flag(sbi, SBI_NEED_FSCK);
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
return 0;
|
2015-07-27 04:17:59 -06:00
|
|
|
}
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
|
|
|
|
static inline pgoff_t current_sit_addr(struct f2fs_sb_info *sbi,
|
|
|
|
unsigned int start)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
2014-09-04 04:11:47 -06:00
|
|
|
unsigned int offset = SIT_BLOCK_OFFSET(start);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
block_t blk_addr = sit_i->sit_base_addr + offset;
|
|
|
|
|
|
|
|
check_seg_range(sbi, start);
|
|
|
|
|
2017-01-07 03:52:34 -07:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
if (f2fs_test_bit(offset, sit_i->sit_bitmap) !=
|
|
|
|
f2fs_test_bit(offset, sit_i->sit_bitmap_mir))
|
|
|
|
f2fs_bug_on(sbi, 1);
|
|
|
|
#endif
|
|
|
|
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
/* calculate sit block address */
|
|
|
|
if (f2fs_test_bit(offset, sit_i->sit_bitmap))
|
|
|
|
blk_addr += sit_i->sit_blocks;
|
|
|
|
|
|
|
|
return blk_addr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline pgoff_t next_sit_addr(struct f2fs_sb_info *sbi,
|
|
|
|
pgoff_t block_addr)
|
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
|
|
|
block_addr -= sit_i->sit_base_addr;
|
|
|
|
if (block_addr < sit_i->sit_blocks)
|
|
|
|
block_addr += sit_i->sit_blocks;
|
|
|
|
else
|
|
|
|
block_addr -= sit_i->sit_blocks;
|
|
|
|
|
|
|
|
return block_addr + sit_i->sit_base_addr;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline void set_to_next_sit(struct sit_info *sit_i, unsigned int start)
|
|
|
|
{
|
2014-09-04 04:11:47 -06:00
|
|
|
unsigned int block_off = SIT_BLOCK_OFFSET(start);
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
|
2014-10-20 03:45:50 -06:00
|
|
|
f2fs_change_bit(block_off, sit_i->sit_bitmap);
|
2017-01-07 03:52:34 -07:00
|
|
|
#ifdef CONFIG_F2FS_CHECK_FS
|
|
|
|
f2fs_change_bit(block_off, sit_i->sit_bitmap_mir);
|
|
|
|
#endif
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
2018-06-04 09:20:17 -06:00
|
|
|
static inline unsigned long long get_mtime(struct f2fs_sb_info *sbi,
|
|
|
|
bool base_time)
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
{
|
|
|
|
struct sit_info *sit_i = SIT_I(sbi);
|
2018-06-04 09:20:17 -06:00
|
|
|
time64_t diff, now = ktime_get_real_seconds();
|
2017-05-08 16:59:10 -06:00
|
|
|
|
2018-06-04 09:20:17 -06:00
|
|
|
if (now >= sit_i->mounted_time)
|
|
|
|
return sit_i->elapsed_time + now - sit_i->mounted_time;
|
|
|
|
|
|
|
|
/* system time is set to the past */
|
|
|
|
if (!base_time) {
|
|
|
|
diff = sit_i->mounted_time - now;
|
|
|
|
if (sit_i->elapsed_time >= diff)
|
|
|
|
return sit_i->elapsed_time - diff;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
return sit_i->elapsed_time;
|
f2fs: add superblock and major in-memory structure
This adds the following major in-memory structures in f2fs.
- f2fs_sb_info:
contains f2fs-specific information, two special inode pointers for node and
meta address spaces, and orphan inode management.
- f2fs_inode_info:
contains vfs_inode and other fs-specific information.
- f2fs_nm_info:
contains node manager information such as NAT entry cache, free nid list,
and NAT page management.
- f2fs_node_info:
represents a node as node id, inode number, block address, and its version.
- f2fs_sm_info:
contains segment manager information such as SIT entry cache, free segment
map, current active logs, dirty segment management, and segment utilization.
The specific structures are sit_info, free_segmap_info, dirty_seglist_info,
curseg_info.
In addition, add F2FS_SUPER_MAGIC in magic.h.
Signed-off-by: Chul Lee <chur.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2012-11-27 21:37:31 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
static inline void set_summary(struct f2fs_summary *sum, nid_t nid,
|
|
|
|
unsigned int ofs_in_node, unsigned char version)
|
|
|
|
{
|
|
|
|
sum->nid = cpu_to_le32(nid);
|
|
|
|
sum->ofs_in_node = cpu_to_le16(ofs_in_node);
|
|
|
|
sum->version = version;
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline block_t start_sum_block(struct f2fs_sb_info *sbi)
|
|
|
|
{
|
|
|
|
return __start_cp_addr(sbi) +
|
|
|
|
le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
|
|
|
|
}
|
|
|
|
|
|
|
|
static inline block_t sum_blk_addr(struct f2fs_sb_info *sbi, int base, int type)
|
|
|
|
{
|
|
|
|
return __start_cp_addr(sbi) +
|
|
|
|
le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_total_block_count)
|
|
|
|
- (base + 1) + type;
|
|
|
|
}
|
2013-03-30 22:26:03 -06:00
|
|
|
|
|
|
|
static inline bool sec_usage_check(struct f2fs_sb_info *sbi, unsigned int secno)
|
|
|
|
{
|
|
|
|
if (IS_CURSEC(sbi, secno) || (sbi->cur_victim_sec == secno))
|
|
|
|
return true;
|
|
|
|
return false;
|
|
|
|
}
|
2013-04-29 01:58:39 -06:00
|
|
|
|
2014-03-17 21:40:49 -06:00
|
|
|
/*
|
|
|
|
* It is very important to gather dirty pages and write at once, so that we can
|
|
|
|
* submit a big bio without interfering other data writes.
|
|
|
|
* By default, 512 pages for directory data,
|
2017-02-25 04:32:21 -07:00
|
|
|
* 512 pages (2MB) * 8 for nodes, and
|
|
|
|
* 256 pages * 8 for meta are set.
|
2014-03-17 21:40:49 -06:00
|
|
|
*/
|
|
|
|
static inline int nr_pages_to_skip(struct f2fs_sb_info *sbi, int type)
|
|
|
|
{
|
writeback: move bandwidth related fields from backing_dev_info into bdi_writeback
Currently, a bdi (backing_dev_info) embeds single wb (bdi_writeback)
and the role of the separation is unclear. For cgroup support for
writeback IOs, a bdi will be updated to host multiple wb's where each
wb serves writeback IOs of a different cgroup on the bdi. To achieve
that, a wb should carry all states necessary for servicing writeback
IOs for a cgroup independently.
This patch moves bandwidth related fields from backing_dev_info into
bdi_writeback.
* The moved fields are: bw_time_stamp, dirtied_stamp, written_stamp,
write_bandwidth, avg_write_bandwidth, dirty_ratelimit,
balanced_dirty_ratelimit, completions and dirty_exceeded.
* writeback_chunk_size() and over_bground_thresh() now take @wb
instead of @bdi.
* bdi_writeout_fraction(bdi, ...) -> wb_writeout_fraction(wb, ...)
bdi_dirty_limit(bdi, ...) -> wb_dirty_limit(wb, ...)
bdi_position_ration(bdi, ...) -> wb_position_ratio(wb, ...)
bdi_update_writebandwidth(bdi, ...) -> wb_update_write_bandwidth(wb, ...)
[__]bdi_update_bandwidth(bdi, ...) -> [__]wb_update_bandwidth(wb, ...)
bdi_{max|min}_pause(bdi, ...) -> wb_{max|min}_pause(wb, ...)
bdi_dirty_limits(bdi, ...) -> wb_dirty_limits(wb, ...)
* Init/exits of the relocated fields are moved to bdi_wb_init/exit()
respectively. Note that explicit zeroing is dropped in the process
as wb's are cleared in entirety anyway.
* As there's still only one bdi_writeback per backing_dev_info, all
uses of bdi->stat[] are mechanically replaced with bdi->wb.stat[]
introducing no behavior changes.
v2: Typo in description fixed as suggested by Jan.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
2015-05-22 15:13:28 -06:00
|
|
|
if (sbi->sb->s_bdi->wb.dirty_exceeded)
|
2014-11-06 18:23:08 -07:00
|
|
|
return 0;
|
|
|
|
|
2015-10-08 11:40:07 -06:00
|
|
|
if (type == DATA)
|
|
|
|
return sbi->blocks_per_seg;
|
|
|
|
else if (type == NODE)
|
2016-06-16 17:44:11 -06:00
|
|
|
return 8 * sbi->blocks_per_seg;
|
2014-03-17 21:40:49 -06:00
|
|
|
else if (type == META)
|
2016-10-18 12:07:45 -06:00
|
|
|
return 8 * BIO_MAX_PAGES;
|
2014-03-17 21:40:49 -06:00
|
|
|
else
|
|
|
|
return 0;
|
|
|
|
}
|
2014-03-17 22:47:11 -06:00
|
|
|
|
|
|
|
/*
|
|
|
|
* When writing pages, it'd better align nr_to_write for segment size.
|
|
|
|
*/
|
|
|
|
static inline long nr_pages_to_write(struct f2fs_sb_info *sbi, int type,
|
|
|
|
struct writeback_control *wbc)
|
|
|
|
{
|
|
|
|
long nr_to_write, desired;
|
|
|
|
|
|
|
|
if (wbc->sync_mode != WB_SYNC_NONE)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
nr_to_write = wbc->nr_to_write;
|
2016-10-18 12:07:45 -06:00
|
|
|
desired = BIO_MAX_PAGES;
|
2016-05-25 18:17:56 -06:00
|
|
|
if (type == NODE)
|
2016-10-18 12:07:45 -06:00
|
|
|
desired <<= 1;
|
2014-03-17 22:47:11 -06:00
|
|
|
|
|
|
|
wbc->nr_to_write = desired;
|
|
|
|
return desired - nr_to_write;
|
|
|
|
}
|
2017-08-22 22:15:43 -06:00
|
|
|
|
|
|
|
static inline void wake_up_discard_thread(struct f2fs_sb_info *sbi, bool force)
|
|
|
|
{
|
|
|
|
struct discard_cmd_control *dcc = SM_I(sbi)->dcc_info;
|
|
|
|
bool wakeup = false;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
if (force)
|
|
|
|
goto wake_up;
|
|
|
|
|
|
|
|
mutex_lock(&dcc->cmd_lock);
|
2017-10-03 19:08:34 -06:00
|
|
|
for (i = MAX_PLIST_NUM - 1; i >= 0; i--) {
|
|
|
|
if (i + 1 < dcc->discard_granularity)
|
|
|
|
break;
|
2017-08-22 22:15:43 -06:00
|
|
|
if (!list_empty(&dcc->pend_list[i])) {
|
|
|
|
wakeup = true;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
mutex_unlock(&dcc->cmd_lock);
|
|
|
|
if (!wakeup)
|
|
|
|
return;
|
|
|
|
wake_up:
|
|
|
|
dcc->discard_wake = 1;
|
|
|
|
wake_up_interruptible_all(&dcc->discard_wait_queue);
|
|
|
|
}
|