summaryrefslogtreecommitdiff
path: root/kernel/signal.c
diff options
context:
space:
mode:
authorOleg Nesterov <oleg@tv-sign.ru>2006-03-28 16:11:14 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-28 18:36:42 -0800
commita9e88e84b5245da0a1dadb6ccca70ae84e93ccf6 (patch)
tree2b155e7f5ce7ff14a986361fe81d77bf9039e95e /kernel/signal.c
parentf63ee72e0fb82e504a0489490babc7612c7cd6c2 (diff)
downloadlwn-a9e88e84b5245da0a1dadb6ccca70ae84e93ccf6.tar.gz
lwn-a9e88e84b5245da0a1dadb6ccca70ae84e93ccf6.zip
[PATCH] introduce sig_needs_tasklist() helper
In my opinion this patch cleans up the code. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/signal.c')
-rw-r--r--kernel/signal.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/signal.c b/kernel/signal.c
index 819fa49aa70a..c5b65aa4c2bc 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -147,6 +147,9 @@ static kmem_cache_t *sigqueue_cachep;
#define sig_kernel_stop(sig) \
(((sig) < SIGRTMIN) && T(sig, SIG_KERNEL_STOP_MASK))
+#define sig_needs_tasklist(sig) \
+ (((sig) < SIGRTMIN) && T(sig, SIG_KERNEL_STOP_MASK | M(SIGCONT)))
+
#define sig_user_defined(t, signr) \
(((t)->sighand->action[(signr)-1].sa.sa_handler != SIG_DFL) && \
((t)->sighand->action[(signr)-1].sa.sa_handler != SIG_IGN))
@@ -1199,7 +1202,7 @@ kill_proc_info(int sig, struct siginfo *info, pid_t pid)
struct task_struct *p;
rcu_read_lock();
- if (unlikely(sig_kernel_stop(sig) || sig == SIGCONT)) {
+ if (unlikely(sig_needs_tasklist(sig))) {
read_lock(&tasklist_lock);
acquired_tasklist_lock = 1;
}