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| author | Davidlohr Bueso <davidlohr.bueso@hp.com> | 2013-09-11 14:26:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-11 15:59:39 -0700 |
| commit | 3b1c4ad37741e53804ffe0a30dd01e08b2ab6241 (patch) | |
| tree | 72bdaef5ae179d87eed60879c75128e2384f6aa4 /ipc/util.c | |
| parent | 79ccf0f8c8e04e8b9eda6645ba0f63b0915a3075 (diff) | |
| download | linux-3b1c4ad37741e53804ffe0a30dd01e08b2ab6241.tar.gz linux-3b1c4ad37741e53804ffe0a30dd01e08b2ab6241.tar.bz2 linux-3b1c4ad37741e53804ffe0a30dd01e08b2ab6241.zip | |
ipc: drop ipcctl_pre_down
Now that sem, msgque and shm, through *_down(), all use the lockless
variant of ipcctl_pre_down(), go ahead and delete it.
[akpm@linux-foundation.org: fix function name in kerneldoc, cleanups]
Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/util.c')
| -rw-r--r-- | ipc/util.c | 24 |
1 files changed, 4 insertions, 20 deletions
diff --git a/ipc/util.c b/ipc/util.c index 4704223bfad4..2c8a93b380ba 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -733,7 +733,7 @@ int ipc_update_perm(struct ipc64_perm *in, struct kern_ipc_perm *out) } /** - * ipcctl_pre_down - retrieve an ipc and check permissions for some IPC_XXX cmd + * ipcctl_pre_down_nolock - retrieve an ipc and check permissions for some IPC_XXX cmd * @ns: the ipc namespace * @ids: the table of ids where to look for the ipc * @id: the id of the ipc to retrieve @@ -746,29 +746,13 @@ int ipc_update_perm(struct ipc64_perm *in, struct kern_ipc_perm *out) * It must be called without any lock held and * - retrieves the ipc with the given id in the given table. * - performs some audit and permission check, depending on the given cmd - * - returns the ipc with the ipc lock held in case of success - * or an err-code without any lock held otherwise. + * - returns a pointer to the ipc object or otherwise, the corresponding error. * * Call holding the both the rw_mutex and the rcu read lock. */ -struct kern_ipc_perm *ipcctl_pre_down(struct ipc_namespace *ns, - struct ipc_ids *ids, int id, int cmd, - struct ipc64_perm *perm, int extra_perm) -{ - struct kern_ipc_perm *ipcp; - - ipcp = ipcctl_pre_down_nolock(ns, ids, id, cmd, perm, extra_perm); - if (IS_ERR(ipcp)) - goto out; - - spin_lock(&ipcp->lock); -out: - return ipcp; -} - struct kern_ipc_perm *ipcctl_pre_down_nolock(struct ipc_namespace *ns, - struct ipc_ids *ids, int id, int cmd, - struct ipc64_perm *perm, int extra_perm) + struct ipc_ids *ids, int id, int cmd, + struct ipc64_perm *perm, int extra_perm) { kuid_t euid; int err = -EPERM; |