Btrfs: Change find_extent_buffer to use TestSetPageLocked

This makes it possible for callers to check for extent_buffers in cache
without deadlocking against any btree locks held.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2 files changed
tree: d5d6d44f92b600f2fd3e5066bdcd5812e58cbf14
  1. fs/