From a9e88e84b5245da0a1dadb6ccca70ae84e93ccf6 Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Tue, 28 Mar 2006 16:11:14 -0800 Subject: [PATCH] introduce sig_needs_tasklist() helper In my opinion this patch cleans up the code. Signed-off-by: Oleg Nesterov Cc: "Eric W. Biederman" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/signal.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) 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; } -- cgit v1.2.3