diff options
Diffstat (limited to 'ipc')
| -rw-r--r-- | ipc/msg.c | 17 | ||||
| -rw-r--r-- | ipc/sem.c | 17 | ||||
| -rw-r--r-- | ipc/shm.c | 20 |
3 files changed, 45 insertions, 9 deletions
diff --git a/ipc/msg.c b/ipc/msg.c index fdf3db5731ce..ec0c724054b9 100644 --- a/ipc/msg.c +++ b/ipc/msg.c @@ -105,6 +105,7 @@ int msg_init_ns(struct ipc_namespace *ns) void msg_exit_ns(struct ipc_namespace *ns) { struct msg_queue *msq; + struct kern_ipc_perm *perm; int next_id; int total, in_use; @@ -113,10 +114,11 @@ void msg_exit_ns(struct ipc_namespace *ns) in_use = msg_ids(ns).in_use; for (total = 0, next_id = 0; total < in_use; next_id++) { - msq = idr_find(&msg_ids(ns).ipcs_idr, next_id); - if (msq == NULL) + perm = idr_find(&msg_ids(ns).ipcs_idr, next_id); + if (perm == NULL) continue; - ipc_lock_by_ptr(&msq->q_perm); + ipc_lock_by_ptr(perm); + msq = container_of(perm, struct msg_queue, q_perm); freeque(ns, msq); total++; } @@ -144,6 +146,9 @@ static inline struct msg_queue *msg_lock_check_down(struct ipc_namespace *ns, { struct kern_ipc_perm *ipcp = ipc_lock_check_down(&msg_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct msg_queue *)ipcp; + return container_of(ipcp, struct msg_queue, q_perm); } @@ -155,6 +160,9 @@ static inline struct msg_queue *msg_lock(struct ipc_namespace *ns, int id) { struct kern_ipc_perm *ipcp = ipc_lock(&msg_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct msg_queue *)ipcp; + return container_of(ipcp, struct msg_queue, q_perm); } @@ -163,6 +171,9 @@ static inline struct msg_queue *msg_lock_check(struct ipc_namespace *ns, { struct kern_ipc_perm *ipcp = ipc_lock_check(&msg_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct msg_queue *)ipcp; + return container_of(ipcp, struct msg_queue, q_perm); } diff --git a/ipc/sem.c b/ipc/sem.c index 35952c0bae46..d65e285b7e30 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -143,6 +143,7 @@ int sem_init_ns(struct ipc_namespace *ns) void sem_exit_ns(struct ipc_namespace *ns) { struct sem_array *sma; + struct kern_ipc_perm *perm; int next_id; int total, in_use; @@ -151,10 +152,11 @@ void sem_exit_ns(struct ipc_namespace *ns) in_use = sem_ids(ns).in_use; for (total = 0, next_id = 0; total < in_use; next_id++) { - sma = idr_find(&sem_ids(ns).ipcs_idr, next_id); - if (sma == NULL) + perm = idr_find(&sem_ids(ns).ipcs_idr, next_id); + if (perm == NULL) continue; - ipc_lock_by_ptr(&sma->sem_perm); + ipc_lock_by_ptr(perm); + sma = container_of(perm, struct sem_array, sem_perm); freeary(ns, sma); total++; } @@ -181,6 +183,9 @@ static inline struct sem_array *sem_lock_check_down(struct ipc_namespace *ns, { struct kern_ipc_perm *ipcp = ipc_lock_check_down(&sem_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct sem_array *)ipcp; + return container_of(ipcp, struct sem_array, sem_perm); } @@ -192,6 +197,9 @@ static inline struct sem_array *sem_lock(struct ipc_namespace *ns, int id) { struct kern_ipc_perm *ipcp = ipc_lock(&sem_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct sem_array *)ipcp; + return container_of(ipcp, struct sem_array, sem_perm); } @@ -200,6 +208,9 @@ static inline struct sem_array *sem_lock_check(struct ipc_namespace *ns, { struct kern_ipc_perm *ipcp = ipc_lock_check(&sem_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct sem_array *)ipcp; + return container_of(ipcp, struct sem_array, sem_perm); } diff --git a/ipc/shm.c b/ipc/shm.c index 3818fae625c5..65c3a294aba5 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -111,6 +111,7 @@ int shm_init_ns(struct ipc_namespace *ns) void shm_exit_ns(struct ipc_namespace *ns) { struct shmid_kernel *shp; + struct kern_ipc_perm *perm; int next_id; int total, in_use; @@ -119,10 +120,11 @@ void shm_exit_ns(struct ipc_namespace *ns) in_use = shm_ids(ns).in_use; for (total = 0, next_id = 0; total < in_use; next_id++) { - shp = idr_find(&shm_ids(ns).ipcs_idr, next_id); - if (shp == NULL) + perm = idr_find(&shm_ids(ns).ipcs_idr, next_id); + if (perm == NULL) continue; - ipc_lock_by_ptr(&shp->shm_perm); + ipc_lock_by_ptr(perm); + shp = container_of(perm, struct shmid_kernel, shm_perm); do_shm_rmid(ns, shp); total++; } @@ -149,6 +151,9 @@ static inline struct shmid_kernel *shm_lock_down(struct ipc_namespace *ns, { struct kern_ipc_perm *ipcp = ipc_lock_down(&shm_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct shmid_kernel *)ipcp; + return container_of(ipcp, struct shmid_kernel, shm_perm); } @@ -158,6 +163,9 @@ static inline struct shmid_kernel *shm_lock_check_down( { struct kern_ipc_perm *ipcp = ipc_lock_check_down(&shm_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct shmid_kernel *)ipcp; + return container_of(ipcp, struct shmid_kernel, shm_perm); } @@ -169,6 +177,9 @@ static inline struct shmid_kernel *shm_lock(struct ipc_namespace *ns, int id) { struct kern_ipc_perm *ipcp = ipc_lock(&shm_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct shmid_kernel *)ipcp; + return container_of(ipcp, struct shmid_kernel, shm_perm); } @@ -177,6 +188,9 @@ static inline struct shmid_kernel *shm_lock_check(struct ipc_namespace *ns, { struct kern_ipc_perm *ipcp = ipc_lock_check(&shm_ids(ns), id); + if (IS_ERR(ipcp)) + return (struct shmid_kernel *)ipcp; + return container_of(ipcp, struct shmid_kernel, shm_perm); } |