[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>
--
diff --git a/ipc/shm.c b/ipc/shm.c
index 6d16bb6..f8e10a2 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -279,7 +279,7 @@
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));