diff options
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 105bb8b1c..5077115ce 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -30,7 +30,7 @@ static kmem_cache_t *signal_queue_cachep; -int nr_queued_signals; +atomic_t nr_queued_signals; int max_queued_signals = 1024; void __init signals_init(void) @@ -61,7 +61,7 @@ flush_signals(struct task_struct *t) while (q) { n = q->next; kmem_cache_free(signal_queue_cachep, q); - nr_queued_signals--; + atomic_dec(&nr_queued_signals); q = n; } } @@ -158,7 +158,7 @@ printk("SIG dequeue (%s:%d): %d ", current->comm, current->pid, current->sigqueue_tail = pp; *info = q->info; kmem_cache_free(signal_queue_cachep,q); - nr_queued_signals--; + atomic_dec(&nr_queued_signals); /* then see if this signal is still pending. */ q = *pp; @@ -324,13 +324,13 @@ printk("SIG queue (%s:%d): %d ", t->comm, t->pid, sig); struct signal_queue *q = 0; - if (nr_queued_signals < max_queued_signals) { + if (atomic_read(&nr_queued_signals) < max_queued_signals) { q = (struct signal_queue *) kmem_cache_alloc(signal_queue_cachep, GFP_ATOMIC); } if (q) { - nr_queued_signals++; + atomic_inc(&nr_queued_signals); q->next = NULL; *t->sigqueue_tail = q; t->sigqueue_tail = &q->next; @@ -873,7 +873,7 @@ do_sigaction(int sig, const struct k_sigaction *act, struct k_sigaction *oact) else { *pp = q->next; kmem_cache_free(signal_queue_cachep, q); - nr_queued_signals--; + atomic_dec(&nr_queued_signals); } q = *pp; } |