path: root/ipc/util.h
diff options
authorPierre Peiffer <pierre.peiffer@bull.net>2008-04-29 01:00:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-29 08:06:14 -0700
commita5f75e7f256f75759ec3d6dbef0ba932f1b397d2 (patch)
tree89b2ed22547a9fca11f87eb6cba68bb84fcf1b8a /ipc/util.h
parent8f4a3809c18ff3107bdbb1fabe3f4e5d2a928321 (diff)
IPC: consolidate all xxxctl_down() functions
semctl_down(), msgctl_down() and shmctl_down() are used to handle the same set of commands for each kind of IPC. They all start to do the same job (they retrieve the ipc and do some permission checks) before handling the commands on their own. This patch proposes to consolidate this by moving these same pieces of code into one common function called ipcctl_pre_down(). It simplifies a little these xxxctl_down() functions and increases a little the maintainability. 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>
Diffstat (limited to 'ipc/util.h')
1 files changed, 2 insertions, 0 deletions
diff --git a/ipc/util.h b/ipc/util.h
index 12966913ebc..791c5c01271 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -113,6 +113,8 @@ struct kern_ipc_perm *ipc_lock(struct ipc_ids *, int);
void kernel_to_ipc64_perm(struct kern_ipc_perm *in, struct ipc64_perm *out);
void ipc64_perm_to_ipc_perm(struct ipc64_perm *in, struct ipc_perm *out);
void ipc_update_perm(struct ipc64_perm *in, struct kern_ipc_perm *out);
+struct kern_ipc_perm *ipcctl_pre_down(struct ipc_ids *ids, int id, int cmd,
+ struct ipc64_perm *perm, int extra_perm);
#if defined(__ia64__) || defined(__x86_64__) || defined(__hppa__) || defined(__XTENSA__)
/* On IA-64, we always use the "64-bit version" of the IPC structures. */