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| author | Chris Mason <chris.mason@fusionio.com> | 2012-07-23 21:25:05 +0200 |
|---|---|---|
| committer | Chris Mason <chris.mason@fusionio.com> | 2012-07-23 21:36:18 +0200 |
| commit | cbea5ac1ee03197354bd38caad3fcb798f185181 (patch) | |
| tree | 3d6b62c1fd163107ecb08d6489cf0bc159e6df12 /drivers/parport | |
| parent | Btrfs: don't wait around for new log writers on an SSD (diff) | |
| download | linux-cbea5ac1ee03197354bd38caad3fcb798f185181.tar.xz linux-cbea5ac1ee03197354bd38caad3fcb798f185181.zip | |
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>
Diffstat (limited to 'drivers/parport')
0 files changed, 0 insertions, 0 deletions