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authorRoland McGrath <roland@redhat.com>2006-09-29 02:00:31 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-29 09:18:15 -0700
commit27d91e07f9b863fa94491ffafe250580f0c2ce78 (patch)
tree0e5237670110b70496d68398e68a071c43c9e03e /kernel
parentb9ecb2bd5d3ab8904752685696cb76aac1f3fef2 (diff)
downloadblackbird-op-linux-27d91e07f9b863fa94491ffafe250580f0c2ce78.tar.gz
blackbird-op-linux-27d91e07f9b863fa94491ffafe250580f0c2ce78.zip
[PATCH] __dequeue_signal() cleanup
This tightens up __dequeue_signal a little. It also avoids doing recalc_sigpending twice in a row, instead doing it once in dequeue_signal. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/signal.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 05853a7337e3..fb5da6d19f14 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -417,9 +417,8 @@ static int collect_signal(int sig, struct sigpending *list, siginfo_t *info)
static int __dequeue_signal(struct sigpending *pending, sigset_t *mask,
siginfo_t *info)
{
- int sig = 0;
+ int sig = next_signal(pending, mask);
- sig = next_signal(pending, mask);
if (sig) {
if (current->notifier) {
if (sigismember(current->notifier_mask, sig)) {
@@ -432,9 +431,7 @@ static int __dequeue_signal(struct sigpending *pending, sigset_t *mask,
if (!collect_signal(sig, pending, info))
sig = 0;
-
}
- recalc_sigpending();
return sig;
}
@@ -451,6 +448,7 @@ int dequeue_signal(struct task_struct *tsk, sigset_t *mask, siginfo_t *info)
if (!signr)
signr = __dequeue_signal(&tsk->signal->shared_pending,
mask, info);
+ recalc_sigpending_tsk(tsk);
if (signr && unlikely(sig_kernel_stop(signr))) {
/*
* Set a marker that we have dequeued a stop signal. Our
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