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authorChris Mason <chris.mason@oracle.com>2011-07-25 06:50:50 -0400
committerChris Mason <chris.mason@oracle.com>2011-07-27 12:46:47 -0400
commit19b6caf4acbf065dc96b47741d99f1b87243c468 (patch)
tree4bce889648c2459e1dbd9fd835a196db26c06f9b /crypto/michael_mic.c
parent31533fb263928c93a34cda41b66a6e83ade5c766 (diff)
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Btrfs: reduce extent_state lock contention for metadata
For metadata buffers that don't straddle pages (all of them), btrfs can safely use the page uptodate bits and extent_buffer uptodate bit instead of needing to use the extent_state tree. This greatly reduces contention on the state tree lock. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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