diff options
| author | Kees Cook <keescook@chromium.org> | 2017-07-12 23:34:47 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-13 01:26:01 +0200 |
| commit | f8dbe8d290637ac3f68600e30d092393fe9b40a5 (patch) | |
| tree | 20108014c81821082abd938b2c95f4d6a23655e3 /ipc/util.c | |
| parent | include/linux/sem.h: correctly document sem_ctime (diff) | |
| download | linux-f8dbe8d290637ac3f68600e30d092393fe9b40a5.tar.xz linux-f8dbe8d290637ac3f68600e30d092393fe9b40a5.zip | |
ipc: drop non-RCU allocation
The only users of ipc_alloc() were ipc_rcu_alloc() and the on-heap
sem_io fall-back memory. Better to just open-code these to make things
easier to read.
[manfred@colorfullife.com: Rediff due to inclusion of memset() into ipc_rcu_alloc()]
Link: http://lkml.kernel.org/r/20170525185107.12869-5-manfred@colorfullife.com
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
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 | 25 |
1 files changed, 1 insertions, 24 deletions
diff --git a/ipc/util.c b/ipc/util.c index 5d1ff1035efe..dd73feb1569a 100644 --- a/ipc/util.c +++ b/ipc/util.c @@ -395,29 +395,6 @@ void ipc_rmid(struct ipc_ids *ids, struct kern_ipc_perm *ipcp) } /** - * ipc_alloc - allocate ipc space - * @size: size desired - * - * Allocate memory from the appropriate pools and return a pointer to it. - * NULL is returned if the allocation fails - */ -void *ipc_alloc(int size) -{ - return kvmalloc(size, GFP_KERNEL); -} - -/** - * ipc_free - free ipc space - * @ptr: pointer returned by ipc_alloc - * - * Free a block created with ipc_alloc(). - */ -void ipc_free(void *ptr) -{ - kvfree(ptr); -} - -/** * ipc_rcu_alloc - allocate ipc space * @size: size desired * @@ -429,7 +406,7 @@ struct kern_ipc_perm *ipc_rcu_alloc(int size) /* * We prepend the allocation with the rcu struct */ - struct kern_ipc_perm *out = ipc_alloc(size); + struct kern_ipc_perm *out = kvmalloc(size, GFP_KERNEL); if (unlikely(!out)) return NULL; |