diff options
| author | Kirill Tkhai | 2018-11-08 12:05:25 +0300 |
|---|---|---|
| committer | Miklos Szeredi | 2019-02-13 13:15:13 +0100 |
| commit | 217316a601016d0d2913290070e6338576ae73f6 (patch) | |
| tree | 018240bc0794d5702b9eaca6a7b392bff21eb5fd /kernel/hung_task.c | |
| parent | 8da6e9183275c837e7d2401b3018ff81f657a19a (diff) | |
fuse: Optimize request_end() by not taking fiq->waitq.lock
We take global fiq->waitq.lock every time, when we are in this function,
but interrupted requests are just small subset of all requests. This patch
optimizes request_end() and makes it to take the lock when it's really
needed.
queue_interrupt() needs small change for that. After req is linked to
interrupt list, we do smp_mb() and check for FR_FINISHED again. In case of
FR_FINISHED bit has appeared, we remove req and leave the function:
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'kernel/hung_task.c')
0 files changed, 0 insertions, 0 deletions