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authorGreg Kroah-Hartman <gregkh@suse.de>2011-02-24 11:36:31 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2011-02-24 11:36:31 -0800
commitf227e08b71b9c273eaa29a57370a3a5b833aa382 (patch)
tree9f1483776a2bde3bb1a6bd744e69acf19f6f3428 /fs/eventpoll.c
parentfec38d1752c01ad72789bac9f1a128f7e933735d (diff)
parentf5412be599602124d2bdd49947b231dd77c0bf99 (diff)
Merge 2.6.38-rc6 into tty-next
This was to resolve a merge issue with drivers/char/Makefile and drivers/tty/serial/68328serial.c Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/eventpoll.c')
-rw-r--r--fs/eventpoll.c16
1 files changed, 13 insertions, 3 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index cc8a9b7d606..267d0ada454 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1114,6 +1114,17 @@ static int ep_send_events(struct eventpoll *ep,
return ep_scan_ready_list(ep, ep_send_events_proc, &esed);
}
+static inline struct timespec ep_set_mstimeout(long ms)
+{
+ struct timespec now, ts = {
+ .tv_sec = ms / MSEC_PER_SEC,
+ .tv_nsec = NSEC_PER_MSEC * (ms % MSEC_PER_SEC),
+ };
+
+ ktime_get_ts(&now);
+ return timespec_add_safe(now, ts);
+}
+
static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
int maxevents, long timeout)
{
@@ -1121,12 +1132,11 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
unsigned long flags;
long slack;
wait_queue_t wait;
- struct timespec end_time;
ktime_t expires, *to = NULL;
if (timeout > 0) {
- ktime_get_ts(&end_time);
- timespec_add_ns(&end_time, (u64)timeout * NSEC_PER_MSEC);
+ struct timespec end_time = ep_set_mstimeout(timeout);
+
slack = select_estimate_accuracy(&end_time);
to = &expires;
*to = timespec_to_ktime(end_time);