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f2fs: move ioctl interface definitions to separated file 

[ Upstream commit fa4320cefb ]

Like other filesystem does, we introduce a new file f2fs.h in path of
include/uapi/linux/, and move f2fs-specified ioctl interface definitions
to that file, after then, in order to use those definitions, userspace
developer only need to include the new header file rather than
copy & paste definitions from fs/f2fs/f2fs.h.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
pull/345/head^2
Chao Yu 2020-11-02 14:21:31 +08:00 committed by Greg Kroah-Hartman
parent 997d24a932
commit b7ff0885de
5 changed files with 90 additions and 79 deletions
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1
MAINTAINERS
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@ -6694,6 +6694,7 @@ F: Documentation/filesystems/f2fs.rst
F: fs/f2fs/
F: include/linux/f2fs_fs.h
F: include/trace/events/f2fs.h
F: include/uapi/linux/f2fs.h
F71805F HARDWARE MONITORING DRIVER
M: Jean Delvare <jdelvare@suse.com>

79
fs/f2fs/f2fs.h
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@ -402,85 +402,6 @@ static inline bool __has_cursum_space(struct f2fs_journal *journal,
return size <= MAX_SIT_JENTRIES(journal);
}
/*
* f2fs-specific ioctl commands
*/
#define F2FS_IOCTL_MAGIC 0xf5
#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
#define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
#define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
struct f2fs_defragment)
#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
struct f2fs_move_range)
#define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
struct f2fs_flush_device)
#define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
struct f2fs_gc_range)
#define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
#define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
#define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
#define F2FS_IOC_GET_COMPRESS_BLOCKS _IOR(F2FS_IOCTL_MAGIC, 17, __u64)
#define F2FS_IOC_RELEASE_COMPRESS_BLOCKS \
_IOR(F2FS_IOCTL_MAGIC, 18, __u64)
#define F2FS_IOC_RESERVE_COMPRESS_BLOCKS \
_IOR(F2FS_IOCTL_MAGIC, 19, __u64)
#define F2FS_IOC_SEC_TRIM_FILE _IOW(F2FS_IOCTL_MAGIC, 20, \
struct f2fs_sectrim_range)
/*
* should be same as XFS_IOC_GOINGDOWN.
* Flags for going down operation used by FS_IOC_GOINGDOWN
*/
#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
#define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
/*
* Flags used by F2FS_IOC_SEC_TRIM_FILE
*/
#define F2FS_TRIM_FILE_DISCARD 0x1 /* send discard command */
#define F2FS_TRIM_FILE_ZEROOUT 0x2 /* zero out */
#define F2FS_TRIM_FILE_MASK 0x3
struct f2fs_gc_range {
u32 sync;
u64 start;
u64 len;
};
struct f2fs_defragment {
u64 start;
u64 len;
};
struct f2fs_move_range {
u32 dst_fd; /* destination fd */
u64 pos_in; /* start position in src_fd */
u64 pos_out; /* start position in dst_fd */
u64 len; /* size to move */
};
struct f2fs_flush_device {
u32 dev_num; /* device number to flush */
u32 segments; /* # of segments to flush */
};
struct f2fs_sectrim_range {
u64 start;
u64 len;
u64 flags;
};
/* for inline stuff */
#define DEF_INLINE_RESERVED_SIZE 1
static inline int get_extra_isize(struct inode *inode);

1
fs/f2fs/file.c
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@ -31,6 +31,7 @@
#include "gc.h"
#include "trace.h"
#include <trace/events/f2fs.h>
#include <uapi/linux/f2fs.h>
static vm_fault_t f2fs_filemap_fault(struct vm_fault *vmf)
{

1
include/trace/events/f2fs.h
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@ -6,6 +6,7 @@
#define _TRACE_F2FS_H
#include <linux/tracepoint.h>
#include <uapi/linux/f2fs.h>
#define show_dev(dev) MAJOR(dev), MINOR(dev)
#define show_dev_ino(entry) show_dev(entry->dev), (unsigned long)entry->ino

87
include/uapi/linux/f2fs.h 100644
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@ -0,0 +1,87 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_F2FS_H
#define _UAPI_LINUX_F2FS_H
#include <linux/types.h>
#include <linux/ioctl.h>
/*
* f2fs-specific ioctl commands
*/
#define F2FS_IOCTL_MAGIC 0xf5
#define F2FS_IOC_START_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 1)
#define F2FS_IOC_COMMIT_ATOMIC_WRITE _IO(F2FS_IOCTL_MAGIC, 2)
#define F2FS_IOC_START_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 3)
#define F2FS_IOC_RELEASE_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 4)
#define F2FS_IOC_ABORT_VOLATILE_WRITE _IO(F2FS_IOCTL_MAGIC, 5)
#define F2FS_IOC_GARBAGE_COLLECT _IOW(F2FS_IOCTL_MAGIC, 6, __u32)
#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
#define F2FS_IOC_DEFRAGMENT _IOWR(F2FS_IOCTL_MAGIC, 8, \
struct f2fs_defragment)
#define F2FS_IOC_MOVE_RANGE _IOWR(F2FS_IOCTL_MAGIC, 9, \
struct f2fs_move_range)
#define F2FS_IOC_FLUSH_DEVICE _IOW(F2FS_IOCTL_MAGIC, 10, \
struct f2fs_flush_device)
#define F2FS_IOC_GARBAGE_COLLECT_RANGE _IOW(F2FS_IOCTL_MAGIC, 11, \
struct f2fs_gc_range)
#define F2FS_IOC_GET_FEATURES _IOR(F2FS_IOCTL_MAGIC, 12, __u32)
#define F2FS_IOC_SET_PIN_FILE _IOW(F2FS_IOCTL_MAGIC, 13, __u32)
#define F2FS_IOC_GET_PIN_FILE _IOR(F2FS_IOCTL_MAGIC, 14, __u32)
#define F2FS_IOC_PRECACHE_EXTENTS _IO(F2FS_IOCTL_MAGIC, 15)
#define F2FS_IOC_RESIZE_FS _IOW(F2FS_IOCTL_MAGIC, 16, __u64)
#define F2FS_IOC_GET_COMPRESS_BLOCKS _IOR(F2FS_IOCTL_MAGIC, 17, __u64)
#define F2FS_IOC_RELEASE_COMPRESS_BLOCKS \
_IOR(F2FS_IOCTL_MAGIC, 18, __u64)
#define F2FS_IOC_RESERVE_COMPRESS_BLOCKS \
_IOR(F2FS_IOCTL_MAGIC, 19, __u64)
#define F2FS_IOC_SEC_TRIM_FILE _IOW(F2FS_IOCTL_MAGIC, 20, \
struct f2fs_sectrim_range)
/*
* should be same as XFS_IOC_GOINGDOWN.
* Flags for going down operation used by FS_IOC_GOINGDOWN
*/
#define F2FS_IOC_SHUTDOWN _IOR('X', 125, __u32) /* Shutdown */
#define F2FS_GOING_DOWN_FULLSYNC 0x0 /* going down with full sync */
#define F2FS_GOING_DOWN_METASYNC 0x1 /* going down with metadata */
#define F2FS_GOING_DOWN_NOSYNC 0x2 /* going down */
#define F2FS_GOING_DOWN_METAFLUSH 0x3 /* going down with meta flush */
#define F2FS_GOING_DOWN_NEED_FSCK 0x4 /* going down to trigger fsck */
/*
* Flags used by F2FS_IOC_SEC_TRIM_FILE
*/
#define F2FS_TRIM_FILE_DISCARD 0x1 /* send discard command */
#define F2FS_TRIM_FILE_ZEROOUT 0x2 /* zero out */
#define F2FS_TRIM_FILE_MASK 0x3
struct f2fs_gc_range {
__u32 sync;
__u64 start;
__u64 len;
};
struct f2fs_defragment {
__u64 start;
__u64 len;
};
struct f2fs_move_range {
__u32 dst_fd; /* destination fd */
__u64 pos_in; /* start position in src_fd */
__u64 pos_out; /* start position in dst_fd */
__u64 len; /* size to move */
};
struct f2fs_flush_device {
__u32 dev_num; /* device number to flush */
__u32 segments; /* # of segments to flush */
};
struct f2fs_sectrim_range {
__u64 start;
__u64 len;
__u64 flags;
};
#endif /* _UAPI_LINUX_F2FS_H */