linux-kernel - [PATCH 3/4] ipc, shm: drop shm_lock

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Date:	Sun, 21 Jul 2013 18:21:42 -0700
From:	Davidlohr Bueso <davidlohr.bueso@...com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Davidlohr Bueso <davidlohr.bueso@...com>
Subject: [PATCH 3/4] ipc, shm: drop shm_lock_check

This function was replaced by a the lockless shm_obtain_object_check(),
and no longer has any users.

Signed-off-by: Davidlohr Bueso <davidlohr.bueso@...com>
---
 ipc/shm.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/ipc/shm.c b/ipc/shm.c
index c7ee2f6..9ffc563 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -167,17 +167,6 @@ static inline void shm_lock_by_ptr(struct shmid_kernel *ipcp)
 	ipc_lock_object(&ipcp->shm_perm);
 }
 
-static inline struct shmid_kernel *shm_lock_check(struct ipc_namespace *ns,
-						int id)
-{
-	struct kern_ipc_perm *ipcp = ipc_lock_check(&shm_ids(ns), id);
-
-	if (IS_ERR(ipcp))
-		return (struct shmid_kernel *)ipcp;
-
-	return container_of(ipcp, struct shmid_kernel, shm_perm);
-}
-
 static inline void shm_rmid(struct ipc_namespace *ns, struct shmid_kernel *s)
 {
 	ipc_rmid(&shm_ids(ns), &s->shm_perm);
-- 
1.7.11.7

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