Josef Bacik 4485386853 Btrfs: take into account total references when doing backref lookup ... I added an optimization for large files where we would stop searching for backrefs once we had looked at the number of references we currently had for this extent. This works great most of the time, but for snapshots that point to this extent and has changes in the original root this assumption falls on it face. So keep track of any delayed ref mods made and add in the actual ref count as reported by the extent item and use that to limit how far down an inode we'll search for extents. Thanks, Reportedy-by: Hugo Mills <hugo@carfax.org.uk> Signed-off-by: Josef Bacik <jbacik@fb.com> Reported-by: Hugo Mills <hugo@carfax.org.uk> Tested-by: Hugo Mills <hugo@carfax.org.uk> Signed-off-by: Chris Mason <clm@fb.com>		2014-03-21 15:28:09 -07:00
..
tests	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
Kconfig	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -08:00
Makefile	Btrfs: fix btrfs boot when compiled as built-in	2014-01-28 13:20:31 -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: take into account total references when doing backref lookup	2014-03-21 15:28:09 -07:00
backref.h	…
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	…
ctree.c	Btrfs: correctly determine if blocks are shared in btrfs_compare_trees	2014-03-10 15:16:50 -04:00
ctree.h	Btrfs: fix possible empty list access when flushing the delalloc inodes	2014-03-10 15:17:29 -04:00
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	…
dir-item.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
disk-io.c	Btrfs: fix possible empty list access when flushing the delalloc inodes	2014-03-10 15:17:29 -04:00
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: don't flush all delalloc inodes when we doesn't get s_umount lock	2014-03-10 15:17:27 -04:00
extent_io.c	Btrfs: more efficient split extent state insertion	2014-03-10 15:16:57 -04:00
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: 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
file-item.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
file.c	Btrfs: remove the unnecessary flush when preparing the pages	2014-03-10 15:17:25 -04:00
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: 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: fix possible empty list access when flushing the delalloc inodes	2014-03-10 15:17:29 -04:00
ioctl.c	Btrfs: less fs tree lock contention when using autodefrag	2014-03-20 17:15:27 -07:00
locking.c	…
locking.h	…
lzo.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00
math.h	…
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	…
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	…
rcu-string.h	…
reada.c	btrfs: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
relocation.c	Btrfs: don't flush all delalloc inodes when we doesn't get s_umount lock	2014-03-10 15:17:27 -04:00
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: part 2, fix incremental send's decision to delay a dir move/rename	2014-03-21 15:25:48 -07:00
send.h	…
struct-funcs.c	…
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: fix deadlock with nested trans handles	2014-03-20 17:15:27 -07:00
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: 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: Cleanup the "_struct" suffix in btrfs_workequeue	2014-03-10 15:17:16 -04:00
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	…
zlib.c	Btrfs: convert printk to btrfs_ and fix BTRFS prefix	2014-01-28 13:20:05 -08:00