Josef Bacik 7ef81ac86c Btrfs: only process as many file extents as there are refs ... The backref walking code will search down to the key it is looking for and then proceed to walk _all_ of the extents on the file until it hits the end. This is suboptimal with large files, we only need to look for as many extents as we have references for that inode. I have a testcase that creates a randomly written 4 gig file and before this patch it took 6min 30sec to do the initial send, with this patch it takes 2min 30sec to do the intial send. Thanks, Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Chris Mason <clm@fb.com>		2014-01-28 13:20:28 -08:00
..
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: fix __btrfs_start_workers retval	2013-11-20 20:42:11 -05:00
async-thread.h	Btrfs: eliminate races in worker stopping code	2013-10-04 16:02:13 -04:00
backref.c	Btrfs: only process as many file extents as there are refs	2014-01-28 13:20:28 -08:00
backref.h	Btrfs: allocate prelim_ref with a slab allocater	2013-09-01 08:16:27 -04:00
btrfs_inode.h	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
check-integrity.c	Btrfs: fix check-integrity to look at the referenced data properly	2014-01-28 13:19:21 -08:00
check-integrity.h	block: submit_bio_wait() conversions	2013-11-24 16:33:41 -07:00
compression.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
compression.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ctree.c	Btrfs: reduce btree node locking duration on item update	2014-01-28 13:20:11 -08:00
ctree.h	Btrfs: throttle delayed refs better	2014-01-28 13:20:26 -08:00
delayed-inode.c	Btrfs: introduce the delayed inode ref deletion for the single link inode	2014-01-28 13:20:09 -08:00
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: attach delayed ref updates to delayed ref heads	2014-01-28 13:20:25 -08:00
delayed-ref.h	Btrfs: attach delayed ref updates to delayed ref heads	2014-01-28 13:20:25 -08:00
dev-replace.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
dev-replace.h
dir-item.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
disk-io.c	Btrfs: throttle delayed refs better	2014-01-28 13:20:26 -08:00
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-tree.c	Btrfs: throttle delayed refs better	2014-01-28 13:20:26 -08:00
extent_io.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
extent_io.h	Btrfs: move the extent buffer radix tree into the fs_info	2014-01-28 13:19:55 -08:00
extent_map.c	Btrfs: fix extent_map block_len after merging	2014-01-28 13:19:51 -08:00
extent_map.h	btrfs: Enclose macros with complex values within parenthesis	2013-11-11 22:12:06 -05:00
file-item.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
file.c	Btrfs: make fsync latency less sucky	2014-01-28 13:20:25 -08:00
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.h
inode-item.c	btrfs: cleanup: removed unused 'btrfs_get_inode_ref_index'	2014-01-28 13:19:39 -08:00
inode-map.c	btrfs: Use WARN_ON()'s return value in place of WARN_ON(1)	2013-11-11 22:11:53 -05:00
inode-map.h
inode.c	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
ioctl.c	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs	2013-11-22 08:38:55 -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: add support for inode properties	2014-01-28 13:20:24 -08:00
math.h
ordered-data.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
ordered-data.h	Btrfs: don't wait for the completion of all the ordered extents	2013-11-11 22:13:44 -05:00
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: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -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: fix qgroup rescan to work with skinny metadata	2014-01-28 13:20:27 -08:00
raid56.c	btrfs: remove fs/btrfs/compat.h	2013-11-11 22:03:19 -05:00
raid56.h
rcu-string.h
reada.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
relocation.c	Btrfs: fix an oops when we fail to relocate tree blocks	2014-01-28 13:20:14 -08:00
root-tree.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
scrub.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
send.c	Btrfs: remove unnecessary transaction commit before send	2014-01-28 13:20:22 -08:00
send.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
struct-funcs.c
super.c	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
sysfs.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
sysfs.h	btrfs: publish allocation data in sysfs	2014-01-28 13:19:29 -08:00
transaction.c	Btrfs: throttle delayed refs better	2014-01-28 13:20:26 -08:00
transaction.h	Btrfs: make fsync latency less sucky	2014-01-28 13:20:25 -08:00
tree-defrag.c	Btrfs: cleanup dead code of defragment	2013-11-11 21:59:45 -05:00
tree-log.c	Btrfs: faster file extent item replace operations	2014-01-28 13:20:23 -08:00
tree-log.h	btrfs: make static code static & remove dead code	2013-05-06 15:55:23 -04:00
ulist.c	Btrfs: fix crash regarding to ulist_add_merge	2013-07-02 11:50:59 -04:00
ulist.h	Btrfs: add a rb_tree to improve performance of ulist search	2013-05-06 15:54:44 -04:00
uuid-tree.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
volumes.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
volumes.h	btrfs: Pack struct btrfs_device	2013-11-11 22:11:26 -05:00
xattr.c	Btrfs: add support for inode properties	2014-01-28 13:20:24 -08:00
xattr.h
zlib.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00