Drop locks in btrfs_search_slot when reading a tree block.

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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>

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This commit is contained in:

Chris Mason 2008-06-25 16:01:30 -04:00

parent a213501153

commit 051e1b9f74

4 changed files with 38 additions and 39 deletions

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74

fs/btrfs/ctree.c

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1

fs/btrfs/ctree.h

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1

fs/btrfs/disk-io.c

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1

fs/btrfs/extent-tree.c

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