epoll: make epoll_wait() use the hrtimer range feature

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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>

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Shawn Bohrer 2010-10-27 15:34:54 -07:00 • committed by Linus Torvalds

parent 231f3d393f

commit 95aac7b1cd

3 changed files with 22 additions and 17 deletions

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33

fs/eventpoll.c

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2

fs/select.c

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2

include/linux/poll.h

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