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authorDavidlohr Bueso <davidlohr.bueso@hp.com>2013-07-19 09:56:55 +1000
committerStephen Rothwell <sfr@canb.auug.org.au>2013-07-19 09:56:55 +1000
commit71aee211c5a1a9047f9996919976ec68d426ccd8 (patch)
treecbc5628872f4942aa2daab7c49ae3edc93496457 /ipc
parent1eec6135d4e892edbe2ae6c70751ff2c0f1894ff (diff)
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. 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>
Diffstat (limited to 'ipc')
-rw-r--r--ipc/util.c21
-rw-r--r--ipc/util.h3
2 files changed, 2 insertions, 22 deletions
diff --git a/ipc/util.c b/ipc/util.c
index 4704223bfad4..a9523f3b94f9 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -746,26 +746,10 @@ 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)
@@ -782,8 +766,7 @@ struct kern_ipc_perm *ipcctl_pre_down_nolock(struct ipc_namespace *ns,
audit_ipc_obj(ipcp);
if (cmd == IPC_SET)
- audit_ipc_set_perm(extra_perm, perm->uid,
- perm->gid, perm->mode);
+ audit_ipc_set_perm(extra_perm, perm->uid, perm->gid, perm->mode);
euid = current_euid();
if (uid_eq(euid, ipcp->cuid) || uid_eq(euid, ipcp->uid) ||
diff --git a/ipc/util.h b/ipc/util.h
index b6a6a88f3002..41a6c4d26399 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -131,9 +131,6 @@ int ipc_update_perm(struct ipc64_perm *in, struct kern_ipc_perm *out);
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 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);
#ifndef CONFIG_ARCH_WANT_IPC_PARSE_VERSION
/* On IA-64, we always use the "64-bit version" of the IPC structures. */