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Chris Mason 051e1b9f74 Drop locks in btrfs_search_slot when reading a tree block. 
One lock per btree block can make for significant congestion if everyone
has to wait for IO at the high levels of the btree.  This drops
locks held by a path when doing reads during a tree search.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
History 2008-09-25 11:04:03 -04:00
fs/btrfs Drop locks in btrfs_search_slot when reading a tree block. 2008-09-25 11:04:03 -04:00