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authorOleg Nesterov <oleg@redhat.com>2011-11-22 21:37:41 +0100
committerOleg Nesterov <oleg@redhat.com>2012-01-13 18:49:02 +0100
commit163566f60bfe6a8176650155e2d98649b0dfabf8 (patch)
tree3c1c8de6abf5af1e3234fc09e2b2aae93ad2b267 /kernel/signal.c
parent6c303d3ab39f0dc69546f179c424ee1124f50906 (diff)
downloadvexpress-lsk-163566f60bfe6a8176650155e2d98649b0dfabf8.tar.gz
tracing: send_sigqueue() needs trace_signal_generate() too
Add trace_signal_generate() into send_sigqueue(). send_sigqueue() is very similar to __send_signal(), just it uses the preallocated info. It should do the same wrt tracing. Reported-by: Seiji Aguchi <saguchi@redhat.com> Reviewed-by: Seiji Aguchi <seiji.aguchi@hds.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Diffstat (limited to 'kernel/signal.c')
-rw-r--r--kernel/signal.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 1bd9e86fda1..8511e39813c 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -1591,7 +1591,7 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group)
int sig = q->info.si_signo;
struct sigpending *pending;
unsigned long flags;
- int ret;
+ int ret, result;
BUG_ON(!(q->flags & SIGQUEUE_PREALLOC));
@@ -1600,6 +1600,7 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group)
goto ret;
ret = 1; /* the signal is ignored */
+ result = TRACE_SIGNAL_IGNORED;
if (!prepare_signal(sig, t, 0))
goto out;
@@ -1611,6 +1612,7 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group)
*/
BUG_ON(q->info.si_code != SI_TIMER);
q->info.si_overrun++;
+ result = TRACE_SIGNAL_ALREADY_PENDING;
goto out;
}
q->info.si_overrun = 0;
@@ -1620,7 +1622,9 @@ int send_sigqueue(struct sigqueue *q, struct task_struct *t, int group)
list_add_tail(&q->list, &pending->list);
sigaddset(&pending->signal, sig);
complete_signal(sig, t, group);
+ result = TRACE_SIGNAL_DELIVERED;
out:
+ trace_signal_generate(sig, &q->info, t, group, result);
unlock_task_sighand(t, &flags);
ret:
return ret;