Liu Bo df57dbe6bf Btrfs: make btrfs's allocation smoothly with preallocation ... For backref walking, we've introduce delayed ref's sequence. However, it changes our preallocation behavior. The story is that when we preallocate an extent and then mark it written piece by piece, the ideal case should be that we don't need to COW the extent, which is why we use 'preallocate'. But we may not make use of preallocation, since when we check for cross refs on the extent, we may have two ref entries which have the same content except the sequence value, and we recognize them as cross refs and do COW to allocate another extent. So we end up with several pieces of space instead of an whole extent. Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com> Signed-off-by: Josef Bacik <jbacik@fusionio.com>		2012-07-23 16:28:10 -04:00
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acl.c	Btrfs: cache no acl on new inodes	2012-05-30 10:23:27 -04:00
async-thread.c	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
async-thread.h	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
backref.c	Btrfs: leave critical region in btrfs_find_all_roots as soon as possible	2012-06-27 16:34:39 +02:00
backref.h	Btrfs: use the tree modification log for backref resolving	2012-05-30 15:17:34 +02:00
btrfs_inode.h	Btrfs: kill free_space pointer from inode structure	2012-07-23 16:28:05 -04:00
check-integrity.c	Btrfs: use rcu to protect device->name	2012-06-14 21:29:16 -04:00
check-integrity.h	Btrfs: add optional integrity check code	2011-12-21 19:14:09 +01:00
compat.h	Btrfs: drop remaining LINUX_KERNEL_VERSION checks and compat code	2009-01-06 09:38:55 -05:00
compression.c	Merge branch 'for-linus-min' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2012-04-13 19:41:27 -07:00
compression.h	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
ctree.c	Btrfs: fix buffer leak in btrfs_next_old_leaf	2012-07-23 16:28:03 -04:00
ctree.h	Btrfs: rewrite BTRFS_SETGET_FUNCS	2012-07-23 16:28:06 -04:00
delayed-inode.c	Btrfs: zero unused bytes in inode item	2012-07-23 16:28:05 -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: use delayed ref sequence numbers for all fs-tree updates	2012-05-30 18:18:21 +02:00
delayed-ref.h	Btrfs: use delayed ref sequence numbers for all fs-tree updates	2012-05-30 18:18:21 +02:00
dir-item.c	btrfs: replace many BUG_ONs with proper error handling	2012-03-22 11:52:54 +01:00
disk-io.c	Btrfs: avoid I/O repair BUG() from btree_read_extent_buffer_pages()	2012-07-23 16:27:59 -04:00
disk-io.h	btrfs: Drop unused function btrfs_abort_devices()	2012-05-30 10:23:39 -04:00
export.c	->encode_fh() API change	2012-05-29 23:28:33 -04:00
export.h	NFS support for btrfs - v3	2008-09-25 11:04:06 -04:00
extent_io.c	Btrfs: lock the transition from dirty to writeback for an eb	2012-07-23 16:28:09 -04:00
extent_io.h	Merge branch 'for-chris' of git://git.jan-o-sch.net/btrfs-unstable into for-linus	2012-05-31 16:49:53 -04:00
extent_map.c	Btrfs: clean up code for merging extent maps	2011-08-01 14:30:50 -04:00
extent_map.h	btrfs: fix structs where bitfields and spinlock/atomic share 8B word	2012-02-15 16:40:25 +01:00
extent-tree.c	Btrfs: make btrfs's allocation smoothly with preallocation	2012-07-23 16:28:10 -04:00
file-item.c	Btrfs: kill root from btrfs_is_free_space_inode	2012-07-23 16:28:00 -04:00
file.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2012-07-05 13:06:25 -07:00
free-space-cache.c	Btrfs: do not count in readonly bytes	2012-07-23 16:28:03 -04:00
free-space-cache.h	btrfs: remove all unused functions	2011-05-06 12:34:03 +02:00
hash.h	Btrfs: remove crc32c.h and use libcrc32c directly.	2009-06-10 11:29:53 -04:00
inode-item.c	Merge branch 'error-handling' into for-linus	2012-03-28 20:31:37 -04:00
inode-map.c	Btrfs: show useful info in space reservation tracepoint	2012-03-29 09:57:44 -04:00
inode-map.h	Btrfs: Support reading/writing on disk free ino cache	2011-04-25 16:46:11 +08:00
inode.c	Btrfs: zero unused bytes in inode item	2012-07-23 16:28:05 -04:00
ioctl.c	Btrfs: do not set subvolume flags in readonly mode	2012-07-23 16:27:58 -04:00
ioctl.h	Btrfs: add DEVICE_READY ioctl	2012-07-23 16:27:42 -04:00
Kconfig	Btrfs: add config option to enable btrfs integrity check	2011-12-21 19:14:16 +01:00
locking.c	Btrfs: reduce calls to wake_up on uncontended locks	2012-07-23 15:36:18 -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 'integrity-check-patch-v2' of git://btrfs.giantdisaster.de/git/btrfs into integration	2012-01-16 15:27:58 -05:00
ordered-data.c	Btrfs: call filemap_fdatawrite twice for compression	2012-06-14 21:30:54 -04:00
ordered-data.h	Btrfs: finish ordered extents in their own thread	2012-05-30 10:23:33 -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	Btrfs: Create extent_buffer interface for large blocksizes	2008-09-25 11:03:56 -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: fix error handling in __add_reloc_root()	2012-07-23 16:27:53 -04:00
root-tree.c	btrfs: replace many BUG_ONs with proper error handling	2012-03-22 11:52:54 +01:00
scrub.c	Btrfs: use rcu to protect device->name	2012-06-14 21:29:16 -04:00
struct-funcs.c	Btrfs: rewrite BTRFS_SETGET_FUNCS	2012-07-23 16:28:06 -04:00
super.c	Btrfs: add DEVICE_READY ioctl	2012-07-23 16:27:42 -04:00
sysfs.c	btrfs: Remove unused sysfs code	2011-06-17 14:54:18 -04:00
transaction.c	Btrfs: change how we indicate we're adding csums	2012-07-23 16:27:55 -04:00
transaction.h	Btrfs: change how we indicate we're adding csums	2012-07-23 16:27:55 -04:00
tree-defrag.c	btrfs: drop unused parameter from btrfs_release_path	2011-05-02 13:57:22 +02:00
tree-log.c	Btrfs: return error of btrfs_update_inode() to caller	2012-07-23 16:27:54 -04:00
tree-log.h	btrfs: return void in functions without error conditions	2012-03-22 01:45:34 +01:00
ulist.c	Merge branch 'for-chris' of git://git.jan-o-sch.net/btrfs-unstable into for-linus	2012-05-31 16:49:53 -04:00
ulist.h	Merge branch 'for-chris' of git://git.jan-o-sch.net/btrfs-unstable into for-linus	2012-05-31 16:49:53 -04:00
version.h	Update Btrfs files for in-kernel usage	2008-09-25 15:41:59 -04:00
volumes.c	Btrfs: suppress printk() if all device I/O stats are zero	2012-07-23 16:28:07 -04:00
volumes.h	Btrfs: add DEVICE_READY ioctl	2012-07-23 16:27:42 -04:00
xattr.c	Btrfs: use i_version instead of our own sequence	2012-05-30 10:23:27 -04:00
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: remove the second argument of k[un]map_atomic()	2012-03-20 21:48:21 +08:00