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e6138876ad
linux/fs/btrfs
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Josef Bacik e6138876ad Btrfs: cache extent state when writing out dirty metadata pages 
Everytime we write out dirty pages we search for an offset in the tree,
convert the bits in the state, and then when we wait we search for the
offset again and clear the bits.  So for every dirty range in the io tree we
are doing 4 rb searches, which is suboptimal.  With this patch we are only
doing 2 searches for every cycle (modulo weird things happening).  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
2012-10-09 09:15:41 -04:00
..
acl.c Btrfs: cache no acl on new inodes 2012-05-30 10:23:27 -04:00
async-thread.c Btrfs: call the ordered free operation without any locks held 2012-07-25 16:15:07 -04:00
async-thread.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
backref.c btrfs: extended inode ref iteration 2012-10-09 09:15:01 -04:00
backref.h btrfs: extended inode ref iteration 2012-10-09 09:15:01 -04:00
btrfs_inode.h Btrfs: fix a bug in checking whether a inode is already in log 2012-10-01 15:19:06 -04:00
check-integrity.c Btrfs: introduce subvol uuids and times 2012-07-25 23:28:38 +02:00
check-integrity.h Btrfs: add optional integrity check code 2011-12-21 19:14:09 +01:00
compat.h
compression.c Btrfs: barrier before waitqueue_active 2012-08-28 16:53:33 -04:00
compression.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ctree.c Btrfs: fix btrfs send for inline items and compression 2012-10-01 15:19:00 -04:00
ctree.h btrfs: extended inode refs 2012-10-09 09:14:45 -04:00
delayed-inode.c btrfs: polish names of kmem caches 2012-10-01 15:19:16 -04:00
delayed-inode.h Btrfs: flush delayed inodes if we're short on space 2012-07-23 15:41:40 -04:00
delayed-ref.c Btrfs: allow delayed refs to be merged 2012-08-28 16:53:38 -04:00
delayed-ref.h Btrfs: allow delayed refs to be merged 2012-08-28 16:53:38 -04:00
dir-item.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
disk-io.c Btrfs: cache extent state when writing out dirty metadata pages 2012-10-09 09:15:41 -04:00
disk-io.h Btrfs: remove superblock writing after fatal error 2012-08-28 16:53:38 -04:00
export.c ->encode_fh() API change 2012-05-29 23:28:33 -04:00
export.h
extent_io.c Btrfs: cache extent state when writing out dirty metadata pages 2012-10-09 09:15:41 -04:00
extent_io.h Btrfs: cache extent state when writing out dirty metadata pages 2012-10-09 09:15:41 -04:00
extent_map.c Btrfs: do not hold the write_lock on the extent tree while logging 2012-10-04 09:39:58 -04:00
extent_map.h Btrfs: do not hold the write_lock on the extent tree while logging 2012-10-04 09:39:58 -04:00
extent-tree.c Btrfs: cache extent state when writing out dirty metadata pages 2012-10-09 09:15:41 -04:00
file-item.c btrfs: fix min csum item size warnings in 32bit 2012-10-09 09:15:39 -04:00
file.c Btrfs: fix punch hole when no extent exists 2012-10-04 09:40:00 -04:00
free-space-cache.c Btrfs: cache extent state when writing out dirty metadata pages 2012-10-09 09:15:41 -04:00
free-space-cache.h
hash.h btrfs: extended inode refs 2012-10-09 09:14:45 -04:00
inode-item.c btrfs: extended inode refs 2012-10-09 09:14:45 -04:00
inode-map.c Btrfs: show useful info in space reservation tracepoint 2012-03-29 09:57:44 -04:00
inode-map.h
inode.c Btrfs: do not hold the file extent leaf locked when adding extent item 2012-10-09 09:15:40 -04:00
ioctl.c Btrfs: fix off-by-one in file clone 2012-10-08 20:07:32 -04:00
ioctl.h Merge branch 'send-v2' of git://github.com/ablock84/linux-btrfs into for-linus 2012-07-25 19:19:10 -04:00
Kconfig Btrfs: add config option to enable btrfs integrity check 2011-12-21 19:14:16 +01:00
locking.c Btrfs: fix a misplaced address operator in a condition 2012-08-28 16:53:23 -04:00
locking.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
lzo.c btrfs: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:21 +08:00
Makefile Merge branch 'send-v2' of git://github.com/ablock84/linux-btrfs into for-linus 2012-07-25 19:19:10 -04:00
ordered-data.c Btrfs: kill obsolete arguments in btrfs_wait_ordered_extents 2012-10-04 09:39:57 -04:00
ordered-data.h Btrfs: kill obsolete arguments in btrfs_wait_ordered_extents 2012-10-04 09:39:57 -04:00
orphan.c btrfs: replace many BUG_ONs with proper error handling 2012-03-22 11:52:54 +01:00
print-tree.c Btrfs: read device stats on mount, write modified ones during commit 2012-05-30 10:23:41 -04:00
print-tree.h
qgroup.c Btrfs: check return value of ulist_alloc() properly 2012-10-01 15:19:14 -04:00
rcu-string.h Btrfs: use rcu to protect device->name 2012-06-14 21:29:16 -04:00
reada.c Btrfs: set ioprio of scrub readahead to idle 2012-05-30 10:23:43 -04:00
relocation.c Btrfs: cache extent state when writing out dirty metadata pages 2012-10-09 09:15:41 -04:00
root-tree.c btrfs: move transaction aborts to the point of failure 2012-10-08 20:09:02 -04:00
scrub.c btrfs: Kill some bi_idx references 2012-10-01 15:19:21 -04:00
send.c Btrfs: write_buf is now callable outside send.c 2012-10-04 09:39:55 -04:00
send.h Btrfs: write_buf is now callable outside send.c 2012-10-04 09:39:55 -04:00
struct-funcs.c Btrfs: rewrite BTRFS_SETGET_FUNCS 2012-07-23 16:28:06 -04:00
super.c Btrfs: fix orphan transaction on the freezed filesystem 2012-10-09 09:15:39 -04:00
sysfs.c
transaction.c Btrfs: cache extent state when writing out dirty metadata pages 2012-10-09 09:15:41 -04:00
transaction.h Btrfs: fix orphan transaction on the freezed filesystem 2012-10-09 09:15:39 -04:00
tree-defrag.c
tree-log.c Btrfs: cache extent state when writing out dirty metadata pages 2012-10-09 09:15:41 -04:00
tree-log.h btrfs: return void in functions without error conditions 2012-03-22 01:45:34 +01:00
ulist.c Btrfs: make aux field of ulist 64 bit 2012-10-01 15:18:53 -04:00
ulist.h Btrfs: make aux field of ulist 64 bit 2012-10-01 15:18:53 -04:00
version.h
volumes.c btrfs: move transaction aborts to the point of failure 2012-10-08 20:09:02 -04:00
volumes.h Btrfs: revert checksum error statistic which can cause a BUG() 2012-08-28 16:53:39 -04:00
xattr.c Btrfs: use i_version instead of our own sequence 2012-05-30 10:23:27 -04:00
xattr.h
zlib.c btrfs: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:21 +08:00