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| author | Shawn Bohrer <shawn.bohrer@gmail.com> | 2010-10-27 15:34:54 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-27 18:03:18 -0700 |
| commit | 95aac7b1cd224f568fb83937044cd303ff11b029 (patch) | |
| tree | 24c08cfe031ecc0549cf3f7900e992a27044c4ad /include/linux/poll.h | |
| parent | 231f3d393f63f6e3b505afa179999bba491d0f08 (diff) | |
| download | lwn-95aac7b1cd224f568fb83937044cd303ff11b029.tar.gz lwn-95aac7b1cd224f568fb83937044cd303ff11b029.zip | |
epoll: make epoll_wait() use the hrtimer range feature
This make epoll use hrtimers for the timeout value which prevents
epoll_wait() from timing out up to a millisecond early.
This mirrors the behavior of select() and poll().
Signed-off-by: Shawn Bohrer <shawn.bohrer@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/poll.h')
| -rw-r--r-- | include/linux/poll.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/poll.h b/include/linux/poll.h index 600cc1fde64d..56e76af78102 100644 --- a/include/linux/poll.h +++ b/include/linux/poll.h @@ -73,6 +73,8 @@ extern void poll_initwait(struct poll_wqueues *pwq); extern void poll_freewait(struct poll_wqueues *pwq); extern int poll_schedule_timeout(struct poll_wqueues *pwq, int state, ktime_t *expires, unsigned long slack); +extern long select_estimate_accuracy(struct timespec *tv); + static inline int poll_schedule(struct poll_wqueues *pwq, int state) { |