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authorIngo Molnar <mingo@elte.hu>2006-03-26 01:37:17 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-26 08:56:55 -0800
commit5f921ae96f1529a55966f25cd5c70fab11d38be7 (patch)
treed8b3fecae1b36a99c0dbf544b30933a727bc7178 /ipc/msg.c
parent14cc3e2b633bb64063698980974df4535368e98f (diff)
downloadlinux-5f921ae96f1529a55966f25cd5c70fab11d38be7.tar.gz
[PATCH] sem2mutex: ipc, id.sem
Semaphore to mutex conversion. The conversion was generated via scripts, and the result was validated automatically via a script as well. Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'ipc/msg.c')
-rw-r--r--ipc/msg.c18
1 files changed, 10 insertions, 8 deletions
diff --git a/ipc/msg.c b/ipc/msg.c
index 7eec5ed3237..48a7f17a723 100644
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -28,6 +28,8 @@
#include <linux/syscalls.h>
#include <linux/audit.h>
#include <linux/seq_file.h>
+#include <linux/mutex.h>
+
#include <asm/current.h>
#include <asm/uaccess.h>
#include "util.h"
@@ -179,8 +181,8 @@ static void expunge_all(struct msg_queue* msq, int res)
* removes the message queue from message queue ID
* array, and cleans up all the messages associated with this queue.
*
- * msg_ids.sem and the spinlock for this message queue is hold
- * before freeque() is called. msg_ids.sem remains locked on exit.
+ * msg_ids.mutex and the spinlock for this message queue is hold
+ * before freeque() is called. msg_ids.mutex remains locked on exit.
*/
static void freeque (struct msg_queue *msq, int id)
{
@@ -208,7 +210,7 @@ asmlinkage long sys_msgget (key_t key, int msgflg)
int id, ret = -EPERM;
struct msg_queue *msq;
- down(&msg_ids.sem);
+ mutex_lock(&msg_ids.mutex);
if (key == IPC_PRIVATE)
ret = newque(key, msgflg);
else if ((id = ipc_findkey(&msg_ids, key)) == -1) { /* key not used */
@@ -231,7 +233,7 @@ asmlinkage long sys_msgget (key_t key, int msgflg)
}
msg_unlock(msq);
}
- up(&msg_ids.sem);
+ mutex_unlock(&msg_ids.mutex);
return ret;
}
@@ -361,7 +363,7 @@ asmlinkage long sys_msgctl (int msqid, int cmd, struct msqid_ds __user *buf)
msginfo.msgmnb = msg_ctlmnb;
msginfo.msgssz = MSGSSZ;
msginfo.msgseg = MSGSEG;
- down(&msg_ids.sem);
+ mutex_lock(&msg_ids.mutex);
if (cmd == MSG_INFO) {
msginfo.msgpool = msg_ids.in_use;
msginfo.msgmap = atomic_read(&msg_hdrs);
@@ -372,7 +374,7 @@ asmlinkage long sys_msgctl (int msqid, int cmd, struct msqid_ds __user *buf)
msginfo.msgtql = MSGTQL;
}
max_id = msg_ids.max_id;
- up(&msg_ids.sem);
+ mutex_unlock(&msg_ids.mutex);
if (copy_to_user (buf, &msginfo, sizeof(struct msginfo)))
return -EFAULT;
return (max_id < 0) ? 0: max_id;
@@ -435,7 +437,7 @@ asmlinkage long sys_msgctl (int msqid, int cmd, struct msqid_ds __user *buf)
return -EINVAL;
}
- down(&msg_ids.sem);
+ mutex_lock(&msg_ids.mutex);
msq = msg_lock(msqid);
err=-EINVAL;
if (msq == NULL)
@@ -489,7 +491,7 @@ asmlinkage long sys_msgctl (int msqid, int cmd, struct msqid_ds __user *buf)
}
err = 0;
out_up:
- up(&msg_ids.sem);
+ mutex_unlock(&msg_ids.mutex);
return err;
out_unlock_up:
msg_unlock(msq);