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authorPeter Xu <peterx@redhat.com>2022-11-17 16:29:15 -0500
committerAndrew Morton <akpm@linux-foundation.org>2022-11-30 15:59:01 -0800
commit91a99f1d1248bdde674b66e20ac472ec76f6a202 (patch)
treeed0338121031b4223dbbdf8527186305644b3c4b /tools
parent47939359add5242d27ee6a30e8bcb0cef15ba45c (diff)
downloadlinux-91a99f1d1248bdde674b66e20ac472ec76f6a202.tar.bz2
selftests/vm: use memfd for hugepage-mmap test
This test was overlooked with a hard-coded mntpoint path in test when we're removing the hugetlb mntpoint in commit 0796c7b8be84. Fix it up so the test can keep running. Link: https://lkml.kernel.org/r/Y3aojfUC2nSwbCzB@x1n Fixes: 0796c7b8be84 ("selftests/vm: drop mnt point for hugetlb in run_vmtests.sh") Signed-off-by: Peter Xu <peterx@redhat.com> Reported-by: Joel Savitz <jsavitz@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/testing/selftests/vm/hugepage-mmap.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/tools/testing/selftests/vm/hugepage-mmap.c b/tools/testing/selftests/vm/hugepage-mmap.c
index 93f9e7b81331..955ef87f382c 100644
--- a/tools/testing/selftests/vm/hugepage-mmap.c
+++ b/tools/testing/selftests/vm/hugepage-mmap.c
@@ -16,14 +16,13 @@
* range.
* Other architectures, such as ppc64, i386 or x86_64 are not so constrained.
*/
-
+#define _GNU_SOURCE
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/mman.h>
#include <fcntl.h>
-#define FILE_NAME "huge/hugepagefile"
#define LENGTH (256UL*1024*1024)
#define PROTECTION (PROT_READ | PROT_WRITE)
@@ -67,16 +66,16 @@ int main(void)
void *addr;
int fd, ret;
- fd = open(FILE_NAME, O_CREAT | O_RDWR, 0755);
+ fd = memfd_create("hugepage-mmap", MFD_HUGETLB);
if (fd < 0) {
- perror("Open failed");
+ perror("memfd_create() failed");
exit(1);
}
addr = mmap(ADDR, LENGTH, PROTECTION, FLAGS, fd, 0);
if (addr == MAP_FAILED) {
perror("mmap");
- unlink(FILE_NAME);
+ close(fd);
exit(1);
}
@@ -87,7 +86,6 @@ int main(void)
munmap(addr, LENGTH);
close(fd);
- unlink(FILE_NAME);
return ret;
}