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Chris Mason e02119d5a7 Btrfs: Add a write ahead tree log to optimize synchronous operations ... File syncs and directory syncs are optimized by copying their items into a special (copy-on-write) log tree. There is one log tree per subvolume and the btrfs super block points to a tree of log tree roots. After a crash, items are copied out of the log tree and back into the subvolume. See tree-log.c for all the details. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2008-09-25 11:04:07 -04:00
fs/btrfs	Btrfs: Add a write ahead tree log to optimize synchronous operations	2008-09-25 11:04:07 -04:00