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authorDavid Woodhouse <dwmw2@shinybook.infradead.org>2005-05-03 08:14:09 +0100
committerDavid Woodhouse <dwmw2@shinybook.infradead.org>2005-05-03 08:14:09 +0100
commit27b030d58c8e72fc7a95187a791bd9406e350f02 (patch)
treeab3bab7f39a5ce5bab65578a7e08fa4dfdeb198c /ipc
parent79d20b14a0d651f15b0ef9a22b6cf12d284a6d38 (diff)
parent6628465e33ca694bd8fd5c3cf4eb7ff9177bc694 (diff)
Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Diffstat (limited to 'ipc')
-rw-r--r--ipc/mqueue.c8
-rw-r--r--ipc/shm.c14
2 files changed, 18 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) {
diff --git a/ipc/shm.c b/ipc/shm.c
index 06cd5c91056f..cce022435dbc 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -28,6 +28,8 @@
#include <linux/security.h>
#include <linux/syscalls.h>
#include <linux/audit.h>
+#include <linux/ptrace.h>
+
#include <asm/uaccess.h>
#include "util.h"
@@ -771,6 +773,18 @@ out:
return err;
}
+asmlinkage long sys_shmat(int shmid, char __user *shmaddr, int shmflg)
+{
+ unsigned long ret;
+ long err;
+
+ err = do_shmat(shmid, shmaddr, shmflg, &ret);
+ if (err)
+ return err;
+ force_successful_syscall_return();
+ return (long)ret;
+}
+
/*
* detach and kill segment if marked destroyed.
* The work is done in shm_close.

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