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d323d005ac
linux/fs/f2fs
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Chao Yu d323d005ac f2fs: support file defragment 
This patch introduces a new ioctl F2FS_IOC_DEFRAGMENT to support file
defragment in a specified range of regular file.

This ioctl can be used in very limited workload: if user expects high
sequential read performance in randomly written file, this interface
can be used for defragmentation, after that file can be written as
continuous as possible in the device.

Meanwhile, it has side-effect, it will make holes in segments where
blocks located originally, so it's better to trigger GC to eliminate
fragment in segments.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2015-12-04 11:52:33 -08:00
..
acl.c f2fs: make posix_acl_create() safer and cleaner 2015-05-07 11:38:31 -07:00
acl.h f2fs: avoid deadlock on init_inode_metadata 2014-11-03 16:07:33 -08:00
checkpoint.c f2fs: support lower priority asynchronous readahead in ra_meta_pages 2015-10-12 14:03:15 -07:00
crypto_fname.c f2fs crypto: clean up error handling in f2fs_fname_setup_filename 2015-06-01 16:21:08 -07:00
crypto_key.c KEYS: Merge the type-specific data with the payload data 2015-10-21 15:18:36 +01:00
crypto_policy.c f2fs crypto: do not set encryption policy for non-directory by ioctl 2015-06-01 16:21:07 -07:00
crypto.c f2fs crypto: add alloc_bounce_page 2015-06-11 15:04:20 -07:00
data.c f2fs: support file defragment 2015-12-04 11:52:33 -08:00
debug.c f2fs: report error of f2fs_create_root_stats 2015-12-04 11:52:33 -08:00
dir.c f2fs: set GFP_NOFS for grab_cache_page 2015-10-12 13:38:03 -07:00
extent_cache.c f2fs: fix to skip shrinking extent nodes 2015-10-22 09:39:35 -07:00
f2fs_crypto.h f2fs crypto: remove alloc_page for bounce_page 2015-06-01 16:21:10 -07:00
f2fs.h f2fs: support file defragment 2015-12-04 11:52:33 -08:00
file.c f2fs: support file defragment 2015-12-04 11:52:33 -08:00
gc.c f2fs: relocate the tracepoint for background_gc 2015-10-13 10:02:01 -07:00
gc.h f2fs: support synchronous gc in ioctl 2015-10-09 16:20:56 -07:00
hash.c f2fs: introduce dot and dotdot name check 2015-05-28 15:41:34 -07:00
inline.c f2fs: support fiemap for inline_data 2015-10-20 11:33:21 -07:00
inode.c f2fs: no need to lock for update_inode_page all the time 2015-10-09 16:20:50 -07:00
Kconfig f2fs: fix typo 2015-08-21 22:43:32 -07:00
Makefile f2fs: maintain extent cache in separated file 2015-08-04 14:09:58 -07:00
namei.c fs/f2fs/namei.c: remove unnecessary new_valid_dev() check 2015-11-09 15:11:24 -08:00
node.c f2fs: export ra_nid_pages to sysfs 2015-10-12 14:03:43 -07:00
node.h f2fs: export ra_nid_pages to sysfs 2015-10-12 14:03:43 -07:00
recovery.c f2fs: support lower priority asynchronous readahead in ra_meta_pages 2015-10-12 14:03:15 -07:00
segment.c f2fs: fix to clear GCed flag for atomic written page 2015-10-22 09:37:13 -07:00
segment.h Revert "f2fs: do not skip dentry block writes" 2015-10-12 13:38:02 -07:00
shrinker.c f2fs: shrink free_nids entries 2015-08-20 09:00:06 -07:00
super.c f2fs: report error of f2fs_create_root_stats 2015-12-04 11:52:33 -08:00
trace.c f2fs: add sbi and page pointer in f2fs_io_info 2015-05-28 15:41:32 -07:00
trace.h f2fs: add sbi and page pointer in f2fs_io_info 2015-05-28 15:41:32 -07:00
xattr.c f2fs: xattr simplifications 2015-11-13 20:34:34 -05:00
xattr.h f2fs crypto: add encryption xattr support 2015-05-28 15:41:47 -07:00