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Chris Mason 5ce14bbcdd Btrfs: Find and remove dead roots the first time a root is loaded. ... Dead roots are trees left over after a crash, and they were either in the process of being removed or were waiting to be removed when the box crashed. Before, a search of the entire tree of root pointers was done on mount looking for dead roots. Now, the search is done the first time we load a root. This makes mount faster when there are a large number of snapshots, and it enables the block accounting code to properly update the block counts on the latest root as old versions of the root are reaped after a crash. Signed-off-by: Chris Mason <chris.mason@oracle.com>		2007-09-11 11:15:39 -04:00
fs/btrfs	Btrfs: Find and remove dead roots the first time a root is loaded.	2007-09-11 11:15:39 -04:00