[LTP] [PATCH v2 1/5] A library used to mount hugetlbfs automatically

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

This library includes a set of functions used to mount hugetlbfs automatically when doing the hugemmap tests.

Signed-off-by: Wanlong Gao <gao...@cn...>
---
 testcases/kernel/mem/hugetlb/hugemmap/Makefile |    6 ++-
 testcases/kernel/mem/hugetlb/hugemmap/libmnt.c |   58 ++++++++++++++++++++++++
 2 files changed, 63 insertions(+), 1 deletions(-)
 create mode 100644 testcases/kernel/mem/hugetlb/hugemmap/libmnt.c

diff --git a/testcases/kernel/mem/hugetlb/hugemmap/Makefile b/testcases/kernel/mem/hugetlb/hugemmap/Makefile
index a1ba46e..e6ba4fe 100644
--- a/testcases/kernel/mem/hugetlb/hugemmap/Makefile
+++ b/testcases/kernel/mem/hugetlb/hugemmap/Makefile
@@ -23,5 +23,9 @@
 top_srcdir              ?= ../../../../..
 
 include $(top_srcdir)/include/mk/testcases.mk
-include $(abs_srcdir)/../Makefile.inc
+
+MAKE_TARGETS	:= $(filter-out libmnt,$(patsubst $(abs_srcdir)/%.c,%,$(wildcard $(abs_srcdir)/*.c)))
+
+$(MAKE_TARGETS): %: %.o libmnt.o
+
 include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/mem/hugetlb/hugemmap/libmnt.c b/testcases/kernel/mem/hugetlb/hugemmap/libmnt.c
new file mode 100644
index 0000000..36e2700
--- /dev/null
+++ b/testcases/kernel/mem/hugetlb/hugemmap/libmnt.c
@@ -0,0 +1,58 @@
+/*
+ *
+ *   Copyright (c) Fujitsu Corp., 2011
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/mount.h>
+#include <errno.h>
+
+#include "test.h"
+#include "libmnt.h"
+
+void hugepage_alloc(int num)
+{
+	FILE *file = fopen("/proc/sys/vm/nr_hugepages", "w+");
+	if (file == NULL) {
+		tst_brkm(TBROK|TERRNO, NULL,
+			 "fopen failed on /proc/sys/vm/nr_hugepages");
+	}
+
+	if (fprintf(file, "%d", num) < 0) {
+		tst_brkm(TBROK|TERRNO, NULL,
+			 "fprintf failed on /proc/sys/vm/nr_hugepages");
+	}
+
+	fclose(file);
+}
+
+void mount_hugetlbfs(char *mount_point)
+{
+	if (mount("none", mount_point, "hugetlbfs", 0, NULL) < 0) {
+		tst_brkm(TBROK|TERRNO, NULL,
+			 "mount failed on %s", mount_point);
+	}
+}
+
+void umount_hugetlbfs(char *mount_point)
+{
+	if (umount(mount_point)) {
+		tst_brkm(TBROK|TERRNO, NULL,
+			 "umount faild on %s", mount_point);
+	}
+}
-- 
1.7.8