From: "Marc-André Lureau" <marcandre.lureau@redhat.com>
To: linux-mm@kvack.org, linux-kernel@vger.kernel.org
Cc: aarcange@redhat.com, hughd@google.com, nyc@holomorphy.com,
mike.kravetz@oracle.com,
"Marc-André Lureau" <marcandre.lureau@redhat.com>
Subject: [PATCH v2 9/9] memfd-test: run fuse test on hugetlb backend memory
Date: Mon, 6 Nov 2017 15:39:44 +0100 [thread overview]
Message-ID: <20171106143944.13821-10-marcandre.lureau@redhat.com> (raw)
In-Reply-To: <20171106143944.13821-1-marcandre.lureau@redhat.com>
Suggested-by: Mike Kravetz <mike.kravetz@oracle.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
tools/testing/selftests/memfd/fuse_test.c | 30 ++++++++++++++++++++++----
tools/testing/selftests/memfd/run_fuse_test.sh | 2 +-
tools/testing/selftests/memfd/run_tests.sh | 1 +
3 files changed, 28 insertions(+), 5 deletions(-)
diff --git a/tools/testing/selftests/memfd/fuse_test.c b/tools/testing/selftests/memfd/fuse_test.c
index 795a25ba8521..0a85b34929e1 100644
--- a/tools/testing/selftests/memfd/fuse_test.c
+++ b/tools/testing/selftests/memfd/fuse_test.c
@@ -38,6 +38,8 @@
#define MFD_DEF_SIZE 8192
#define STACK_SIZE 65536
+static size_t mfd_def_size = MFD_DEF_SIZE;
+
static int mfd_assert_new(const char *name, loff_t sz, unsigned int flags)
{
int r, fd;
@@ -123,7 +125,7 @@ static void *mfd_assert_mmap_shared(int fd)
void *p;
p = mmap(NULL,
- MFD_DEF_SIZE,
+ mfd_def_size,
PROT_READ | PROT_WRITE,
MAP_SHARED,
fd,
@@ -141,7 +143,7 @@ static void *mfd_assert_mmap_private(int fd)
void *p;
p = mmap(NULL,
- MFD_DEF_SIZE,
+ mfd_def_size,
PROT_READ | PROT_WRITE,
MAP_PRIVATE,
fd,
@@ -174,7 +176,7 @@ static int sealing_thread_fn(void *arg)
usleep(200000);
/* unmount mapping before sealing to avoid i_mmap_writable failures */
- munmap(global_p, MFD_DEF_SIZE);
+ munmap(global_p, mfd_def_size);
/* Try sealing the global file; expect EBUSY or success. Current
* kernels will never succeed, but in the future, kernels might
@@ -224,7 +226,7 @@ static void join_sealing_thread(pid_t pid)
int main(int argc, char **argv)
{
- static const char zero[MFD_DEF_SIZE];
+ char *zero;
int fd, mfd, r;
void *p;
int was_sealed;
@@ -235,6 +237,25 @@ int main(int argc, char **argv)
abort();
}
+ if (argc >= 3) {
+ if (!strcmp(argv[2], "hugetlbfs")) {
+ unsigned long hpage_size = default_huge_page_size();
+
+ if (!hpage_size) {
+ printf("Unable to determine huge page size\n");
+ abort();
+ }
+
+ hugetlbfs_test = 1;
+ mfd_def_size = hpage_size * 2;
+ } else {
+ printf("Unknown option: %s\n", argv[2]);
+ abort();
+ }
+ }
+
+ zero = calloc(sizeof(*zero), mfd_def_size);
+
/* open FUSE memfd file for GUP testing */
printf("opening: %s\n", argv[1]);
fd = open(argv[1], O_RDONLY | O_CLOEXEC);
@@ -303,6 +324,7 @@ int main(int argc, char **argv)
close(fd);
printf("fuse: DONE\n");
+ free(zero);
return 0;
}
diff --git a/tools/testing/selftests/memfd/run_fuse_test.sh b/tools/testing/selftests/memfd/run_fuse_test.sh
index 407df68dfe27..22e572e2d66a 100755
--- a/tools/testing/selftests/memfd/run_fuse_test.sh
+++ b/tools/testing/selftests/memfd/run_fuse_test.sh
@@ -10,6 +10,6 @@ set -e
mkdir mnt
./fuse_mnt ./mnt
-./fuse_test ./mnt/memfd
+./fuse_test ./mnt/memfd $@
fusermount -u ./mnt
rmdir ./mnt
diff --git a/tools/testing/selftests/memfd/run_tests.sh b/tools/testing/selftests/memfd/run_tests.sh
index daabb350697c..c2d41ed81b24 100755
--- a/tools/testing/selftests/memfd/run_tests.sh
+++ b/tools/testing/selftests/memfd/run_tests.sh
@@ -60,6 +60,7 @@ fi
# Run the hugetlbfs test
#
./memfd_test hugetlbfs
+./run_fuse_test.sh hugetlbfs
#
# Give back any huge pages allocated for the test
--
2.15.0.rc0.40.gaefcc5f6f
next prev parent reply other threads:[~2017-11-06 14:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-06 14:39 [PATCH v2 0/9] memfd: add sealing to hugetlb-backed memory Marc-André Lureau
2017-11-06 14:39 ` [PATCH v2 1/9] shmem: unexport shmem_add_seals()/shmem_get_seals() Marc-André Lureau
2017-11-06 14:39 ` [PATCH v2 2/9] shmem: rename functions that are memfd-related Marc-André Lureau
2017-11-06 14:39 ` [PATCH v2 3/9] hugetlb: expose hugetlbfs_inode_info in header Marc-André Lureau
2017-11-06 14:39 ` [PATCH v2 4/9] hugetlbfs: implement memfd sealing Marc-André Lureau
2017-11-06 14:39 ` [PATCH v2 5/9] shmem: add sealing support to hugetlb-backed memfd Marc-André Lureau
2017-11-06 23:56 ` Mike Kravetz
2017-11-06 14:39 ` [PATCH v2 6/9] memfd-tests: test hugetlbfs sealing Marc-André Lureau
2017-11-07 1:30 ` Mike Kravetz
2017-11-06 14:39 ` [PATCH v2 7/9] memfd-test: add 'memfd-hugetlb:' prefix when testing hugetlbfs Marc-André Lureau
2017-11-07 1:31 ` Mike Kravetz
2017-11-06 14:39 ` [PATCH v2 8/9] memfd-test: move common code to a shared unit Marc-André Lureau
2017-11-07 1:32 ` Mike Kravetz
2017-11-06 14:39 ` Marc-André Lureau [this message]
2017-11-07 1:41 ` [PATCH v2 9/9] memfd-test: run fuse test on hugetlb backend memory Mike Kravetz
2017-11-07 12:12 ` Marc-André Lureau
2017-11-07 1:47 ` [PATCH v2 0/9] memfd: add sealing to hugetlb-backed memory Mike Kravetz
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