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| author | Oleg Nesterov <oleg@tv-sign.ru> | 2008-04-30 00:52:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-30 08:29:35 -0700 |
| commit | 5c193e8871b76f3bf8ed1e31f7af7c70890ebc4f (patch) | |
| tree | 533b708c86908e8d1a439ef63a1c1515871715d7 /kernel/signal.c | |
| parent | f6b76d4fb0039e077824be85ed4ac94e96beef86 (diff) | |
| download | linux-5c193e8871b76f3bf8ed1e31f7af7c70890ebc4f.tar.gz linux-5c193e8871b76f3bf8ed1e31f7af7c70890ebc4f.tar.bz2 linux-5c193e8871b76f3bf8ed1e31f7af7c70890ebc4f.zip | |
signals: send_sigqueue: don't take rcu lock
lock_task_sighand() was changed, send_sigqueue() doesn't need rcu_read_lock()
any longer.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index f92e6298930c..0a8b0aece80d 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -1311,8 +1311,6 @@ int send_sigqueue(int sig, struct sigqueue *q, struct task_struct *p) * We return -1, when the task is marked exiting, so * posix_timer_event can redirect it to the group leader */ - rcu_read_lock(); - if (!likely(lock_task_sighand(p, &flags))) goto out_err; @@ -1323,8 +1321,6 @@ int send_sigqueue(int sig, struct sigqueue *q, struct task_struct *p) unlock_task_sighand(p, &flags); out_err: - rcu_read_unlock(); - return ret; } |