In my opinion this patch cleanups the code. Please
say 'nack' if you think differently.
Signed-off-by: Oleg Nesterov <[email protected]>
--- 2.6.16-rc3/kernel/signal.c~4_SNT 2006-02-18 23:26:51.000000000 +0300
+++ 2.6.16-rc3/kernel/signal.c 2006-02-18 23:43:23.000000000 +0300
@@ -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))
@@ -1202,7 +1205,7 @@ kill_proc_info(int sig, struct siginfo *
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;
}
-
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