| commit | abc610e01c663e25c41a3bdcbc4115cd7fbb047b | [log] [tgz] |
|---|---|---|
| author | Davidlohr Bueso <[email protected]> | Thu Jan 03 15:27:19 2019 -0800 |
| committer | Linus Torvalds <[email protected]> | Fri Jan 04 13:13:46 2019 -0800 |
| tree | bf1652615120062bc27a0dc5b6250974a81664cd | |
| parent | c5a282e9635e9c7382821565083db5d260085e3e [diff] |
fs/epoll: avoid barrier after an epoll_wait(2) timeout Upon timeout, we can just exit out of the loop, without the cost of the changing the task's state with an smp_store_mb call. Just exit out of the loop and be done - setting the task state afterwards will be, of course, redundant. [[email protected]: forgotten fixlets] Link: http://lkml.kernel.org/r/20181109155258.jxcr4t2pnz6zqct3@linux-r8p5 Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Davidlohr Bueso <[email protected]> Reviewed-by: Andrew Morton <[email protected]> Cc: Al Viro <[email protected]> Cc: Davidlohr Bueso <[email protected]> Cc: Jason Baron <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>