Btrfs: alloc_mutex latency reduction
authorChris Mason <chris.mason@oracle.com>
Wed, 23 Jul 2008 03:06:41 +0000 (23:06 -0400)
committerChris Mason <chris.mason@oracle.com>
Thu, 25 Sep 2008 15:04:05 +0000 (11:04 -0400)
commitc286ac48ed7aaf53586f575af6053ae2a0f8554a
tree794cb0e7269c62568e39c160b0f0f03e181c1d93
parente34a5b4f77b8448cf2863ad0cbac35e2c2a86a0a
Btrfs: alloc_mutex latency reduction

This releases the alloc_mutex in a few places that hold it for over long
operations.  btrfs_lookup_block_group is changed so that it doesn't need
the mutex at all.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/ctree.h
fs/btrfs/extent-tree.c