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[3/3] stress-shmsysv: exercise shmat with SHM_REMAP flag on NULL address

Message ID 20200922072730.68911-3-piyushgoyaliit@gmail.com (mailing list archive)
State New, archived
Headers show
Series [1/3] stress-shm-sysv: exercise shmat with invalid flags | expand

Commit Message

Piyush Goyal Sept. 22, 2020, 7:27 a.m. UTC 
Exercise shmat syscall with SHM_REMAP flag on NULL address resulting
in EINVAL error and more kernel coverage.

Signed-off-by: Piyush Goyal <piyushgoyaliit@gmail.com>
---
 stress-shm-sysv.c | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/stress-shm-sysv.c b/stress-shm-sysv.c
index 9efaa091..e2aff788 100644
--- a/stress-shm-sysv.c
+++ b/stress-shm-sysv.c
@@ -149,6 +149,10 @@  static void exercise_shmat(int shm_id)
 
 	addr = shmat(shm_id, NULL, SHM_RND);
 	(void)addr;
+
+	/* Exercise shmat with SHM_REMAP flag on NULL address */
+	addr = shmat(shm_id, NULL, SHM_REMAP);
+	(void)addr;
 }
 
 #if defined(__linux__)