[LTP] [PATCH 1/2] hugeshmctl: make sure shm_size not bigger than shmmax

[Wanlong G. <gao...@cn...>]

check shm_size to make sure that it's not bigger that shmmax.

Signed-off-by: Wanlong Gao <gao...@cn...>
---
 testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl01.c |    1 +
 testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl02.c |    1 +
 testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl03.c |    1 +
 3 files changed, 3 insertions(+)

diff --git a/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl01.c b/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl01.c
index 573a060..b4c02ab 100644
--- a/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl01.c
+++ b/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl01.c
@@ -416,6 +416,7 @@ void setup(void)
 	hpage_size = read_meminfo("Hugepagesize:") * 1024;
 
 	shm_size = hpage_size * hugepages / 2;
+	check_shmmax(&shm_size);
 	shmkey = getipckey();
 
 	TEST_PAUSE;
diff --git a/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl02.c b/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl02.c
index 14370ff..791c9f2 100644
--- a/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl02.c
+++ b/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl02.c
@@ -140,6 +140,7 @@ void setup(void)
 	hpage_size = read_meminfo("Hugepagesize:") * 1024;
 
 	shm_size = hpage_size * hugepages / 2;
+	check_shmmax(&shm_size);
 	shmkey = getipckey();
 
 	/* create a shared memory segment without read or write permissions */
diff --git a/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl03.c b/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl03.c
index 1859552..cc6088c 100644
--- a/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl03.c
+++ b/testcases/kernel/mem/hugetlb/hugeshmctl/hugeshmctl03.c
@@ -166,6 +166,7 @@ void setup(void)
 	hpage_size = read_meminfo("Hugepagesize:") * 1024;
 
 	shm_size = hpage_size * hugepages / 2;
+	check_shmmax(&shm_size);
 	shmkey = getipckey();
 	shm_id_1 = shmget(shmkey, shm_size,
 		    SHM_HUGETLB|IPC_CREAT|IPC_EXCL|SHM_RW);
-- 
1.7.10.rc3