From 95aac7b1cd224f568fb83937044cd303ff11b029 Mon Sep 17 00:00:00 2001
From: Shawn Bohrer <shawn.bohrer@gmail.com>
Date: Wed, 27 Oct 2010 15:34:54 -0700
Subject: 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>
---
 fs/select.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'fs/select.c')

diff --git a/fs/select.c b/fs/select.c
index 5f023f911202..b7b10aa30861 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -67,7 +67,7 @@ static long __estimate_accuracy(struct timespec *tv)
 	return slack;
 }
 
-static long select_estimate_accuracy(struct timespec *tv)
+long select_estimate_accuracy(struct timespec *tv)
 {
 	unsigned long ret;
 	struct timespec now;
-- 
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