IPC: introduce ipc_update_perm()
The IPC_SET command performs the same permission setting for all IPCs. This
patch introduces a common ipc_update_perm() function to update these
permissions and makes use of it for all IPCs.
Signed-off-by: Pierre Peiffer <pierre.peiffer@bull.net>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Cc: Nadia Derbey <Nadia.Derbey@bull.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/ipc/shm.c b/ipc/shm.c
index 5e296b0..20e03df 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -656,10 +656,7 @@
do_shm_rmid(ns, ipcp);
goto out_up;
case IPC_SET:
- ipcp->uid = shmid64.shm_perm.uid;
- ipcp->gid = shmid64.shm_perm.gid;
- ipcp->mode = (ipcp->mode & ~S_IRWXUGO)
- | (shmid64.shm_perm.mode & S_IRWXUGO);
+ ipc_update_perm(&shmid64.shm_perm, ipcp);
shp->shm_ctim = get_seconds();
break;
default: