ipc: close open coded spin lock calls

commit cf9d5d78d05bca96df7618dfc3a5ee4414dcae58 upstream.

Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/ipc/msg.c b/ipc/msg.c
index 796b491..56bff33 100644 (file)
--- a/ipc/msg.c
+++ b/ipc/msg.c
@@ -216,7 +216,7 @@ static int newque(struct ipc_namespace *ns, struct ipc_params *params)
        INIT_LIST_HEAD(&msq->q_receivers);
        INIT_LIST_HEAD(&msq->q_senders);
 
-       spin_unlock(&msq->q_perm.lock);
+       ipc_unlock_object(&msq->q_perm);
        rcu_read_unlock();
 
        return msq->q_perm.id;

diff --git a/ipc/sem.c b/ipc/sem.c
index 70480a3..92ec6c6 100644 (file)
--- a/ipc/sem.c
+++ b/ipc/sem.c
@@ -246,7 +246,7 @@ static inline int sem_lock(struct sem_array *sma, struct sembuf *sops,
                 * their critical section while the array lock is held.
                 */
  lock_array:
-               spin_lock(&sma->sem_perm.lock);
+               ipc_lock_object(&sma->sem_perm);
                for (i = 0; i < sma->sem_nsems; i++) {
                        struct sem *sem = sma->sem_base + i;
                        spin_unlock_wait(&sem->lock);
@@ -259,7 +259,7 @@ static inline int sem_lock(struct sem_array *sma, struct sembuf *sops,
 static inline void sem_unlock(struct sem_array *sma, int locknum)
 {
        if (locknum == -1) {
-               spin_unlock(&sma->sem_perm.lock);
+               ipc_unlock_object(&sma->sem_perm);
        } else {
                struct sem *sem = sma->sem_base + locknum;
                spin_unlock(&sem->lock);
@@ -872,7 +872,7 @@ static void freeary(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)
        int i;
 
        /* Free the existing undo structures for this semaphore set.  */
-       assert_spin_locked(&sma->sem_perm.lock);
+       ipc_assert_locked_object(&sma->sem_perm);
        list_for_each_entry_safe(un, tu, &sma->list_id, list_id) {
                list_del(&un->list_id);
                spin_lock(&un->ulp->lock);
@@ -1070,7 +1070,7 @@ static int semctl_setval(struct ipc_namespace *ns, int semid, int semnum,
 
        curr = &sma->sem_base[semnum];
 
-       assert_spin_locked(&sma->sem_perm.lock);
+       ipc_assert_locked_object(&sma->sem_perm);
        list_for_each_entry(un, &sma->list_id, list_id)
                un->semadj[semnum] = 0;
 
@@ -1199,7 +1199,7 @@ static int semctl_main(struct ipc_namespace *ns, int semid, int semnum,
                for (i = 0; i < nsems; i++)
                        sma->sem_base[i].semval = sem_io[i];
 
-               assert_spin_locked(&sma->sem_perm.lock);
+               ipc_assert_locked_object(&sma->sem_perm);
                list_for_each_entry(un, &sma->list_id, list_id) {
                        for (i = 0; i < nsems; i++)
                                un->semadj[i] = 0;
@@ -1496,7 +1496,7 @@ static struct sem_undo *find_alloc_undo(struct ipc_namespace *ns, int semid)
        new->semid = semid;
        assert_spin_locked(&ulp->lock);
        list_add_rcu(&new->list_proc, &ulp->list_proc);
-       assert_spin_locked(&sma->sem_perm.lock);
+       ipc_assert_locked_object(&sma->sem_perm);
        list_add(&new->list_id, &sma->list_id);
        un = new;
 
@@ -1833,7 +1833,7 @@ void exit_sem(struct task_struct *tsk)
                }
 
                /* remove un from the linked lists */
-               assert_spin_locked(&sma->sem_perm.lock);
+               ipc_assert_locked_object(&sma->sem_perm);
                list_del(&un->list_id);
 
                spin_lock(&ulp->lock);

diff --git a/ipc/shm.c b/ipc/shm.c
index 16b390a..25471fd 100644 (file)
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -141,7 +141,7 @@ static inline struct shmid_kernel *shm_lock(struct ipc_namespace *ns, int id)
 static inline void shm_lock_by_ptr(struct shmid_kernel *ipcp)
 {
        rcu_read_lock();
-       spin_lock(&ipcp->shm_perm.lock);
+       ipc_lock_object(&ipcp->shm_perm);
 }
 
 static inline struct shmid_kernel *shm_lock_check(struct ipc_namespace *ns,
@@ -545,7 +545,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
        ns->shm_tot += numpages;
        error = shp->shm_perm.id;
 
-       spin_unlock(&shp->shm_perm.lock);
+       ipc_unlock_object(&shp->shm_perm);
        rcu_read_unlock();
        return error;
 

diff --git a/ipc/util.h b/ipc/util.h
index da65e8a..b6a6a88 100644 (file)
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -177,12 +177,12 @@ static inline void ipc_assert_locked_object(struct kern_ipc_perm *perm)
 static inline void ipc_lock_by_ptr(struct kern_ipc_perm *perm)
 {
        rcu_read_lock();
-       spin_lock(&perm->lock);
+       ipc_lock_object(perm);
 }
 
 static inline void ipc_unlock(struct kern_ipc_perm *perm)
 {
-       spin_unlock(&perm->lock);
+       ipc_unlock_object(perm);
        rcu_read_unlock();
 }