[LTP] [PATCH 01/18] Move check_hugepage() helper to mem/lib

[Punit Agrawal]

Move the check_hugepage() helper to mem/lib to be more widely available
to testcases. Specifically, it will be used in a subsequent commit to
check for the presence of hugepage support when running the thp tests.

Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
---
 testcases/kernel/mem/hugetlb/lib/hugetlb.c | 6 ------
 testcases/kernel/mem/hugetlb/lib/hugetlb.h | 1 -
 testcases/kernel/mem/include/mem.h         | 2 ++
 testcases/kernel/mem/lib/mem.c             | 6 ++++++
 4 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/testcases/kernel/mem/hugetlb/lib/hugetlb.c b/testcases/kernel/mem/hugetlb/lib/hugetlb.c
index 7afc7d4b4..2f86e3558 100644
--- a/testcases/kernel/mem/hugetlb/lib/hugetlb.c
+++ b/testcases/kernel/mem/hugetlb/lib/hugetlb.c
@@ -40,12 +40,6 @@
 #include <pwd.h>
 #include "hugetlb.h"
 
-void check_hugepage(void)
-{
-	if (access(PATH_HUGEPAGES, F_OK))
-		tst_brk(TCONF, "Huge page is not supported.");
-}
-
 /*
  * getipckey() - generates and returns a message key used by the "get"
  *		 calls to create an IPC resource.
diff --git a/testcases/kernel/mem/hugetlb/lib/hugetlb.h b/testcases/kernel/mem/hugetlb/lib/hugetlb.h
index c6d2016b7..f4a1a75d7 100644
--- a/testcases/kernel/mem/hugetlb/lib/hugetlb.h
+++ b/testcases/kernel/mem/hugetlb/lib/hugetlb.h
@@ -45,7 +45,6 @@
  * from shmid_ds.ipc_perm.mode
  */
 #define MODE_MASK	0x01FF
-#define PATH_HUGEPAGES	"/sys/kernel/mm/hugepages/"
 
 key_t shmkey;			/* an IPC key generated by ftok() */
 
diff --git a/testcases/kernel/mem/include/mem.h b/testcases/kernel/mem/include/mem.h
index 287f8b3f6..95d0bda72 100644
--- a/testcases/kernel/mem/include/mem.h
+++ b/testcases/kernel/mem/include/mem.h
@@ -56,8 +56,10 @@ void test_ksm_merge_across_nodes(unsigned long nr_pages);
 
 /* HUGETLB */
 
+#define PATH_HUGEPAGES		"/sys/kernel/mm/hugepages/"
 #define PATH_SHMMAX		"/proc/sys/kernel/shmmax"
 
+void check_hugepage(void);
 void write_memcg(void);
 
 /* cpuset/memcg */
diff --git a/testcases/kernel/mem/lib/mem.c b/testcases/kernel/mem/lib/mem.c
index dd82b08d2..9ac3160ac 100644
--- a/testcases/kernel/mem/lib/mem.c
+++ b/testcases/kernel/mem/lib/mem.c
@@ -346,6 +346,12 @@ static void verify(char **memory, char value, int proc,
 	free(s);
 }
 
+void check_hugepage(void)
+{
+	if (access(PATH_HUGEPAGES, F_OK))
+		tst_brk(TCONF, "Huge page is not supported.");
+}
+
 void write_memcg(void)
 {
 	SAFE_FILE_PRINTF(MEMCG_LIMIT, "%ld", TESTMEM);
-- 
2.14.2