diff options
| author | Andi Kleen <[email protected]> | 2012-01-12 17:20:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2012-01-12 20:13:12 -0800 |
| commit | 87192a2a49c475cf322cb143e0fa63b0102d8567 (patch) | |
| tree | 70acf2fb1e4a9a3a62559ad9218278d2fb114599 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | ae55e1aaa7e2e57e538cb98cf617f511c5dc4f73 (diff) | |
vfs: cache request_queue in struct block_device
This makes it possible to get from the inode to the request_queue with one
less cache miss. Used in followon optimization.
The livetime of the pointer is the same as the gendisk.
This assumes that the queue will always stay the same in the gendisk while
it's visible to block_devices. I think that's safe correct?
Signed-off-by: Andi Kleen <[email protected]>
Acked-by: Jeff Moyer <[email protected]>
Cc: Jens Axboe <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions