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Btrfs: skip locking when searching commit root
authorWang Shilong <wangsl.fnst@cn.fujitsu.com>
Thu, 13 Feb 2014 03:19:47 +0000 (11:19 +0800)
committerJosef Bacik <jbacik@fb.com>
Mon, 10 Mar 2014 19:16:55 +0000 (15:16 -0400)
commit0fb0ad0f9b9a9050a95921e7b873fab5dabe1ace
treeead4db0b6f80fef7abfde5396dbd1f7967cc2b9atree | snapshot
parent0667a4da6b8b23a668e157ae792463061b09b735commit | diff
Btrfs: skip locking when searching commit root

We won't change commit root, skip locking dance with commit root
when walking backrefs, this can speed up btrfs send operations.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
fs/btrfs/backref.c diff | blob | history
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