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| author | Ingo Molnar <mingo@elte.hu> | 2006-03-26 01:37:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-26 08:56:55 -0800 |
| commit | 5f921ae96f1529a55966f25cd5c70fab11d38be7 (patch) | |
| tree | d8b3fecae1b36a99c0dbf544b30933a727bc7178 /ipc/msg.c | |
| parent | 14cc3e2b633bb64063698980974df4535368e98f (diff) | |
| download | linux-stable-5f921ae96f1529a55966f25cd5c70fab11d38be7.tar.gz linux-stable-5f921ae96f1529a55966f25cd5c70fab11d38be7.tar.bz2 linux-stable-5f921ae96f1529a55966f25cd5c70fab11d38be7.zip | |
[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.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/ipc/msg.c b/ipc/msg.c index 7eec5ed32379..48a7f17a7236 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); |