mainlining shenanigans

Chris Mason a61e6f29dc Btrfs: Use a mutex in the extent buffer for tree block locking ... This replaces the use of the page cache lock bit for locking, which wasn't suitable for block size < page size and couldn't be used recursively. The mutexes alone don't fix either problem, but they are the first step. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2008-09-25 11:04:05 -04:00
fs/btrfs	Btrfs: Use a mutex in the extent buffer for tree block locking	2008-09-25 11:04:05 -04:00