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authorKees Cook <keescook@chromium.org>2017-07-12 14:35:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-12 16:26:02 -0700
commitc3f6fb6fe4e638a58eae558cb209c463cd46c2fc (patch)
treeae8c9acb31bd1bb06be3f2b96df4af8fe567a8d7 /ipc/util.c
parent52f908904e7e05b6300162faa48152df073be645 (diff)
downloadlinux-c3f6fb6fe4e638a58eae558cb209c463cd46c2fc.tar.bz2
ipc/util: drop ipc_rcu_alloc()
No callers remain for ipc_rcu_alloc(). Drop the function. [manfred@colorfullife.com: Rediff because the memset was temporarily inside ipc_rcu_free()] Link: http://lkml.kernel.org/r/20170525185107.12869-13-manfred@colorfullife.com Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Cc: Kees Cook <keescook@chromium.org> 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.c21
1 files changed, 0 insertions, 21 deletions
diff --git a/ipc/util.c b/ipc/util.c
index 556884bab698..2428dd44ca97 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -394,27 +394,6 @@ void ipc_rmid(struct ipc_ids *ids, struct kern_ipc_perm *ipcp)
ipcp->deleted = true;
}
-/**
- * ipc_rcu_alloc - allocate ipc space
- * @size: size desired
- *
- * Allocate memory for an ipc object.
- * The first member must be struct kern_ipc_perm.
- */
-struct kern_ipc_perm *ipc_rcu_alloc(int size)
-{
- /*
- * We prepend the allocation with the rcu struct
- */
- struct kern_ipc_perm *out = kvmalloc(size, GFP_KERNEL);
- if (unlikely(!out))
- return NULL;
-
- memset(out, 0, size);
- atomic_set(&out->refcount, 1);
- return out;
-}
-
int ipc_rcu_getref(struct kern_ipc_perm *ptr)
{
return atomic_inc_not_zero(&ptr->refcount);