[PATCH] correct sys_shmget allocation check

As written, sys_shmget will return ENOSPC when one page is still
available for allocation. This patch corrects the test.

Signed-off-by: Guy Streeter <guy.streeter+lkml@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
--

1 files changed, 1 insertions, 1 deletions

diff --git a/ipc/shm.c b/ipc/shm.c
index 6d16bb6de7d2..f8e10a25ad7d 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -279,7 +279,7 @@ static int newseg (struct ipc_namespace *ns, key_t key, int shmflg, size_t size)
         if (size < SHMMIN || size > ns->shm_ctlmax)
                 return -EINVAL;
 
-        if (ns->shm_tot + numpages >= ns->shm_ctlall)
+        if (ns->shm_tot + numpages > ns->shm_ctlall)
                 return -ENOSPC;
 
         shp = ipc_rcu_alloc(sizeof(*shp));