Chris Mason cbea5ac1ee Btrfs: reduce calls to wake_up on uncontended locks ...

The btrfs locks were unconditionally calling wake_up as the
locks were released.  This lead to extra thrashing on the waitqueue,
especially for locks that were dominated by readers.

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

2012-07-23 15:36:18 -04:00

7.1 KiB

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