1 files changed, 4 insertions, 4 deletions

diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index cb0cd3cf3b5a..0acf245f441d 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -23,6 +23,7 @@
 #include <linux/skbuff.h>
 #include <linux/netlink.h>
 #include <linux/syscalls.h>
+#include <linux/signal.h>
 #include <net/sock.h>
 #include "util.h"
 
@@ -767,7 +768,7 @@ static inline void pipelined_send(struct mqueue_inode_info *info,
         list_del(&receiver->list);
         receiver->state = STATE_PENDING;
         wake_up_process(receiver->task);
-        wmb();
+        smp_wmb();
         receiver->state = STATE_READY;
 }
 
@@ -786,7 +787,7 @@ static inline void pipelined_receive(struct mqueue_inode_info *info)
         list_del(&sender->list);
         sender->state = STATE_PENDING;
         wake_up_process(sender->task);
-        wmb();
+        smp_wmb();
         sender->state = STATE_READY;
 }
 
@@ -976,8 +977,7 @@ asmlinkage long sys_mq_notify(mqd_t mqdes,
                              notification.sigev_notify != SIGEV_THREAD))
                         return -EINVAL;
                 if (notification.sigev_notify == SIGEV_SIGNAL &&
-                        (notification.sigev_signo < 0 ||
-                         notification.sigev_signo > _NSIG)) {
+                        !valid_signal(notification.sigev_signo)) {
                         return -EINVAL;
                 }
                 if (notification.sigev_notify == SIGEV_THREAD) {