X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=kernel%2Fposix-timers.c;h=35b4bbfc78ff6ee7d3f389baf0430231ed09af7b;hb=83d87d167367ae2cc2c6810399aefac33a2ced41;hp=57efe0400bc2a133b7b1bb055e597345c567450f;hpb=4fa435018d740cb83d74c92306aa1f796da91ddd;p=linux-2.6-omap-h63xx.git

diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c
index 57efe0400bc..35b4bbfc78f 100644
--- a/kernel/posix-timers.c
+++ b/kernel/posix-timers.c
@@ -241,7 +241,8 @@ static __init int init_posix_timers(void)
 	register_posix_clock(CLOCK_MONOTONIC, &clock_monotonic);
 
 	posix_timers_cache = kmem_cache_create("posix_timers_cache",
-					sizeof (struct k_itimer), 0, 0, NULL);
+					sizeof (struct k_itimer), 0, SLAB_PANIC,
+					NULL);
 	idr_init(&posix_timers_id);
 	return 0;
 }
@@ -403,7 +404,7 @@ static struct task_struct * good_sigevent(sigevent_t * event)
 
 	if ((event->sigev_notify & SIGEV_THREAD_ID ) &&
 		(!(rtn = find_task_by_pid(event->sigev_notify_thread_id)) ||
-		 rtn->tgid != current->tgid ||
+		 !same_thread_group(rtn, current) ||
 		 (event->sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_SIGNAL))
 		return NULL;
 
@@ -607,7 +608,7 @@ static struct k_itimer * lock_timer(timer_t timer_id, unsigned long *flags)
 		spin_lock(&timr->it_lock);
 
 		if ((timr->it_id != timer_id) || !(timr->it_process) ||
-				timr->it_process->tgid != current->tgid) {
+				!same_thread_group(timr->it_process, current)) {
 			spin_unlock(&timr->it_lock);
 			spin_unlock_irqrestore(&idr_lock, *flags);
 			timr = NULL;
@@ -980,9 +981,20 @@ sys_clock_getres(const clockid_t which_clock, struct timespec __user *tp)
 static int common_nsleep(const clockid_t which_clock, int flags,
 			 struct timespec *tsave, struct timespec __user *rmtp)
 {
-	return hrtimer_nanosleep(tsave, rmtp, flags & TIMER_ABSTIME ?
-				 HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
-				 which_clock);
+	struct timespec rmt;
+	int ret;
+
+	ret = hrtimer_nanosleep(tsave, rmtp ? &rmt : NULL,
+				flags & TIMER_ABSTIME ?
+				HRTIMER_MODE_ABS : HRTIMER_MODE_REL,
+				which_clock);
+
+	if (ret && rmtp) {
+		if (copy_to_user(rmtp, &rmt, sizeof(*rmtp)))
+			return -EFAULT;
+	}
+
+	return ret;
 }
 
 asmlinkage long