alistair23-linux/fs/ext4
Yongqiang Yang 6df935ad2f ext4: don't copy non-existent gdt blocks when resizing
The resize code was copying blocks at the beginning of each block
group in order to copy the superblock and block group descriptor table
(gdt) blocks.  This was, unfortunately, being done even for block
groups that did not have super blocks or gdt blocks.  This is a
complete waste of perfectly good I/O bandwidth, to skip writing those
blocks for sparse bg's.

Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2012-09-05 01:25:50 -04:00
..
acl.c switch posix_acl_equiv_mode() to umode_t * 2011-08-01 02:10:06 -04:00
acl.h fs: take the ACL checks to common code 2011-07-25 14:30:23 -04:00
balloc.c ext4: don't call ext4_error while block group is locked 2012-08-17 09:06:06 -04:00
bitmap.c ext4: don't call ext4_error while block group is locked 2012-08-17 09:06:06 -04:00
block_validity.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00
dir.c ext4: use core vfs llseek code for dir seeks 2012-07-23 00:00:28 +04:00
ext4.h ext4: make the zero-out chunk size tunable 2012-08-17 09:54:17 -04:00
ext4_extents.h ext4: verify and calculate checksums for extent tree blocks 2012-04-29 18:37:10 -04:00
ext4_jbd2.c ext4: remove unnecessary argument from __ext4_handle_dirty_metadata() 2012-07-22 20:37:31 -04:00
ext4_jbd2.h ext4: remove unnecessary argument from __ext4_handle_dirty_metadata() 2012-07-22 20:37:31 -04:00
extents.c ext4: fix trivial typo in comment 2012-08-18 22:38:07 -04:00
file.c The usual collection of bug fixes and optimizations. Perhaps of 2012-07-27 20:52:25 -07:00
fsync.c ext4: check return value of blkdev_issue_flush() 2012-08-17 09:58:17 -04:00
hash.c ext4: return 32/64-bit dir name hash according to usage type 2012-03-18 22:44:40 -04:00
ialloc.c ext4: remove useless marking of superblock dirty 2012-07-22 20:29:31 -04:00
indirect.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00
inode.c ext4: remove duplicated declarations in inode.c 2012-08-19 18:07:40 -04:00
ioctl.c Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-07-23 12:27:27 -07:00
Kconfig ext4: load the crc32c driver if necessary 2012-04-29 18:27:10 -04:00
Makefile ext4: move ext4_ind_* functions from inode.c to indirect.c 2011-06-27 19:40:50 -04:00
mballoc.c ext4: remove unused function argument 'order' in mb_find_extent() 2012-08-17 10:02:17 -04:00
mballoc.h ext4: remove unused macro MB_DEFAULT_MAX_GROUPS_TO_SCAN 2012-08-17 10:00:17 -04:00
migrate.c userns: Convert ext4 to user kuid/kgid where appropriate 2012-05-15 14:59:27 -07:00
mmp.c ext4: Convert to new freezing mechanism 2012-07-31 09:45:48 +04:00
move_extent.c ext4: add some tracepoints in ext4/extents.c 2011-09-09 19:18:51 -04:00
namei.c ext4: add max_dir_size_kb mount option 2012-08-17 09:48:17 -04:00
page-io.c Revert "ext4: don't release page refs in ext4_end_bio()" 2012-03-29 17:00:56 -07:00
resize.c ext4: don't copy non-existent gdt blocks when resizing 2012-09-05 01:25:50 -04:00
super.c ext4: replace plain integer with NULL in super.c 2012-08-18 22:29:18 -04:00
symlink.c ext4: symlink must be handled via filesystem specific operation 2010-05-16 02:00:00 -04:00
truncate.h ext4: move common truncate functions to header file 2011-06-27 19:16:04 -04:00
xattr.c ext4: use s_csum_seed instead of i_csum_seed for xattr block 2012-07-09 16:29:27 -04:00
xattr.h ext4: change on-disk layout to support extended metadata checksumming 2012-04-29 18:23:10 -04:00
xattr_security.c Merge branch 'for_linus' into for_linus_merged 2012-01-10 11:54:07 -05:00
xattr_trusted.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00
xattr_user.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00