Wang Shilong 68bb462d42 Btrfs: don't compress for a small write ... To compress a small file range(<=blocksize) that is not an inline extent can not save disk space at all. skip it can save us some cpu time. This patch can also fix wrong setting nocompression flag for inode, say a case when @total_in is 4096, and then we get @total_compressed 52,because we do aligment to page cache size firstly, and then we get into conclusion @total_in=@total_compressed thus we will clear this inode's compression flag. An exception comes from inserting inline extent failure but we still have @total_compressed < @total_in,so we will still reset inode's flag, this is ok, because we don't have good compression effect. Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com> Signed-off-by: Chris Mason <clm@fb.com>		2014-04-07 09:08:48 -07:00
..
tests	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
acl.c	btrfs: remove dead code	2014-01-28 13:19:50 -08:00
async-thread.c	btrfs: Add trace for btrfs_workqueue alloc/destroy	2014-03-20 17:15:28 -07:00
async-thread.h	btrfs: Add trace for btrfs_workqueue alloc/destroy	2014-03-20 17:15:28 -07:00
backref.c	Btrfs: remove transaction from send	2014-04-06 17:39:30 -07:00
backref.h	Btrfs: allocate prelim_ref with a slab allocater	2013-09-01 08:16:27 -04:00
btrfs_inode.h	Btrfs: use signed integer instead of unsigned long integer for log transid	2014-03-10 15:16:42 -04:00
check-integrity.c	Btrfs: use btrfs_crc32c everywhere instead of libcrc32c	2014-02-03 09:01:27 -08:00
check-integrity.h	block: submit_bio_wait() conversions	2013-11-24 16:33:41 -07:00
compression.c	Btrfs: fix data corruption when reading/updating compressed extents	2014-02-08 17:57:15 -08:00
compression.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ctree.c	Btrfs: hold the commit_root_sem when getting the commit root during send	2014-04-07 09:08:39 -07:00
ctree.h	Btrfs: hold the commit_root_sem when getting the commit root during send	2014-04-07 09:08:39 -07:00
delayed-inode.c	btrfs: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
delayed-inode.h	Btrfs: introduce the delayed inode ref deletion for the single link inode	2014-01-28 13:20:09 -08:00
delayed-ref.c	Btrfs: fix race when updating existing ref head	2014-03-20 17:15:28 -07:00
delayed-ref.h	Btrfs: attach delayed ref updates to delayed ref heads	2014-01-28 13:20:25 -08:00
dev-replace.c	Btrfs: don't flush all delalloc inodes when we doesn't get s_umount lock	2014-03-10 15:17:27 -04:00
dev-replace.h	Btrfs: add new sources for device replace code	2012-12-12 17:15:41 -05:00
dir-item.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
disk-io.c	Btrfs: remove transaction from send	2014-04-06 17:39:30 -07:00
disk-io.h	Btrfs: add a sanity test for btrfs_split_item	2013-11-11 21:51:02 -05:00
export.c	btrfs: remove fs/btrfs/compat.h	2013-11-11 22:03:19 -05:00
export.h
extent_io.c	Btrfs: more efficient io tree navigation on wait_extent_bit	2014-04-07 09:08:47 -07:00
extent_io.h	Btrfs: don't clear uptodate if the eb is under IO	2014-04-06 17:34:37 -07:00
extent_map.c	Btrfs: more efficient btrfs_drop_extent_cache	2014-03-10 15:16:57 -04:00
extent_map.h	Btrfs: more efficient btrfs_drop_extent_cache	2014-03-10 15:16:57 -04:00
extent-tree.c	btrfs: fix lockdep warning with reclaim lock inversion	2014-04-07 09:08:40 -07:00
file-item.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
file.c	btrfs: Change the expanding write sequence to fix snapshot related bug.	2014-04-07 09:08:42 -07:00
free-space-cache.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
free-space-cache.h	Btrfs: remove path arg from btrfs_truncate_free_space_cache	2013-11-11 21:51:33 -05:00
hash.c	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
hash.h	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
inode-item.c	btrfs: cleanup: removed unused 'btrfs_get_inode_ref_index'	2014-01-28 13:19:39 -08:00
inode-map.c	Btrfs: remove transaction from send	2014-04-06 17:39:30 -07:00
inode-map.h	Btrfs: Support reading/writing on disk free ino cache	2011-04-25 16:46:11 +08:00
inode.c	Btrfs: don't compress for a small write	2014-04-07 09:08:48 -07:00
ioctl.c	btrfs: filter invalid arg for btrfs resize	2014-04-07 09:08:45 -07:00
Kconfig	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
locking.c	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
locking.h	Btrfs: remove btrfs_try_spin_lock	2013-03-14 14:57:10 -04:00
lzo.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
Makefile	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
math.h	Btrfs: cleanup duplicated division functions	2012-12-11 13:31:30 -05:00
ordered-data.c	Btrfs: split the global ordered extents mutex	2014-03-10 15:17:28 -04:00
ordered-data.h	btrfs: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
orphan.c	btrfs: expand btrfs_find_item() to include find_orphan_item functionality	2014-01-28 13:19:37 -08:00
print-tree.c	Btrfs: don't use ram_bytes for uncompressed inline items	2014-01-29 07:06:29 -08:00
print-tree.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
props.c	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
props.h	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
qgroup.c	btrfs: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
raid56.c	btrfs: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
raid56.h	Btrfs: RAID5 and RAID6	2013-02-01 14:24:23 -05:00
rcu-string.h	Btrfs: use rcu to protect device->name	2012-06-14 21:29:16 -04:00
reada.c	btrfs: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
relocation.c	Btrfs: do not reset last_snapshot after relocation	2014-04-06 17:34:35 -07:00
root-tree.c	btrfs: Use PTR_ERR_OR_ZERO	2014-03-10 15:16:51 -04:00
scrub.c	btrfs: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
send.c	Btrfs: send, build path string only once in send_hole	2014-04-07 09:08:46 -07:00
send.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
struct-funcs.c	Btrfs: rewrite BTRFS_SETGET_FUNCS	2012-07-23 16:28:06 -04:00
super.c	btrfs: Cleanup the old btrfs_worker.	2014-03-10 15:17:15 -04:00
sysfs.c	btrfs: add simple debugfs interface	2014-03-10 15:15:51 -04:00
sysfs.h	btrfs: add simple debugfs interface	2014-03-10 15:15:51 -04:00
transaction.c	Btrfs: remove transaction from send	2014-04-06 17:39:30 -07:00
transaction.h	Btrfs: remove transaction from send	2014-04-06 17:39:30 -07:00
tree-defrag.c	Btrfs: cleanup dead code of defragment	2013-11-11 21:59:45 -05:00
tree-log.c	Btrfs: stop joining the log transaction if sync log fails	2014-03-10 15:16:44 -04:00
tree-log.h	Btrfs: just wait or commit our own log sub-transaction	2014-03-10 15:16:43 -04:00
ulist.c	Btrfs: do not export ulist functions	2014-01-29 07:06:27 -08:00
ulist.h	Btrfs: do not export ulist functions	2014-01-29 07:06:27 -08:00
uuid-tree.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
volumes.c	btrfs: make device scan less noisy	2014-04-07 09:08:41 -07:00
volumes.h	btrfs: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
xattr.c	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
xattr.h	fs/vfs/security: pass last path component to LSM on inode creation	2011-02-01 11:12:29 -05:00
zlib.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00