diff options
| author | Mathias Krause <minipli@googlemail.com> | 2014-04-16 10:55:02 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2014-04-17 09:53:19 +1000 |
| commit | 346f0e9391cced87c5417bc30ea4de228ac0727f (patch) | |
| tree | 10a82a134bb6684e6a5b965a5739bc74f59db3aa /ipc/sem.c | |
| parent | 7882eac4f717dc5737e924c251bc1cc9d279cbf6 (diff) | |
ipc: constify ipc_ops
There is no need to recreate the very same ipc_ops structure on every
kernel entry for msgget/semget/shmget. Just declare it static and be done
with it. While at it, constify it as we don't modify the structure at
runtime.
Found in the PaX patch, written by the PaX Team.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: PaX Team <pageexec@freemail.hu>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'ipc/sem.c')
| -rw-r--r-- | ipc/sem.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/ipc/sem.c b/ipc/sem.c index bee555417312..3fcbc96abee9 100644 --- a/ipc/sem.c +++ b/ipc/sem.c @@ -564,7 +564,11 @@ static inline int sem_more_checks(struct kern_ipc_perm *ipcp, SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg) { struct ipc_namespace *ns; - struct ipc_ops sem_ops; + static const struct ipc_ops sem_ops = { + .getnew = newary, + .associate = sem_security, + .more_checks = sem_more_checks, + }; struct ipc_params sem_params; ns = current->nsproxy->ipc_ns; @@ -572,10 +576,6 @@ SYSCALL_DEFINE3(semget, key_t, key, int, nsems, int, semflg) if (nsems < 0 || nsems > ns->sc_semmsl) return -EINVAL; - sem_ops.getnew = newary; - sem_ops.associate = sem_security; - sem_ops.more_checks = sem_more_checks; - sem_params.key = key; sem_params.flg = semflg; sem_params.u.nsems = nsems; |