Btrfs: Check for a blocking lock before taking the spin

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This reduces contention on the extent buffer spin locks by testing for a
blocking lock before trying to take the spinlock.

Signed-off-by: Chris Mason <chris.mason@oracle.com>

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Chris Mason 2009-03-12 20:12:45 -04:00

parent 7f366cfecf

commit 66d7e85ea7

1 changed files with 8 additions and 2 deletions

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fs/btrfs/locking.c

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