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-rw-r--r--tools/testing/selftests/mm/run_vmtests.sh15
-rw-r--r--tools/testing/selftests/mm/uffd-common.c7
-rw-r--r--tools/testing/selftests/mm/uffd-common.h2
-rw-r--r--tools/testing/selftests/mm/uffd-stress.c27
4 files changed, 11 insertions, 40 deletions
diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh
index efe22dc569f0..ecc16ea6fc40 100644
--- a/tools/testing/selftests/mm/run_vmtests.sh
+++ b/tools/testing/selftests/mm/run_vmtests.sh
@@ -197,16 +197,13 @@ CATEGORY="gup_test" run_test ./gup_test -a
CATEGORY="gup_test" run_test ./gup_test -ct -F 0x1 0 19 0x1000
CATEGORY="userfaultfd" run_test ./uffd-unit-tests
-uffd_mods=("" ":dev")
uffd_stress_bin=./uffd-stress
-for mod in "${uffd_mods[@]}"; do
- CATEGORY="userfaultfd" run_test ${uffd_stress_bin} anon${mod} 20 16
- # Hugetlb tests require source and destination huge pages. Pass in half
- # the size ($half_ufd_size_MB), which is used for *each*.
- CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb${mod} "$half_ufd_size_MB" 32
- CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb_shared${mod} "$half_ufd_size_MB" 32
- CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem${mod} 20 16
-done
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} anon 20 16
+# Hugetlb tests require source and destination huge pages. Pass in half
+# the size ($half_ufd_size_MB), which is used for *each*.
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb "$half_ufd_size_MB" 32
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb_shared "$half_ufd_size_MB" 32
+CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem 20 16
#cleanup
echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages
diff --git a/tools/testing/selftests/mm/uffd-common.c b/tools/testing/selftests/mm/uffd-common.c
index 3e98e129f8bd..61c6250adf93 100644
--- a/tools/testing/selftests/mm/uffd-common.c
+++ b/tools/testing/selftests/mm/uffd-common.c
@@ -13,7 +13,7 @@ volatile bool test_uffdio_copy_eexist = true;
unsigned long nr_cpus, nr_pages, nr_pages_per_cpu, page_size;
char *area_src, *area_src_alias, *area_dst, *area_dst_alias, *area_remap;
int uffd = -1, uffd_flags, finished, *pipefd, test_type;
-bool map_shared, test_dev_userfaultfd;
+bool map_shared;
bool test_uffdio_wp = true;
unsigned long long *count_verify;
uffd_test_ops_t *uffd_test_ops;
@@ -236,10 +236,7 @@ int userfaultfd_open(uint64_t *features)
{
struct uffdio_api uffdio_api;
- if (test_dev_userfaultfd)
- uffd = uffd_open_dev(UFFD_FLAGS);
- else
- uffd = uffd_open_sys(UFFD_FLAGS);
+ uffd = uffd_open(UFFD_FLAGS);
if (uffd < 0)
return -1;
uffd_flags = fcntl(uffd, F_GETFD, NULL);
diff --git a/tools/testing/selftests/mm/uffd-common.h b/tools/testing/selftests/mm/uffd-common.h
index 32e590ce9442..6068f2346b86 100644
--- a/tools/testing/selftests/mm/uffd-common.h
+++ b/tools/testing/selftests/mm/uffd-common.h
@@ -90,7 +90,7 @@ typedef struct uffd_test_ops uffd_test_ops_t;
extern unsigned long nr_cpus, nr_pages, nr_pages_per_cpu, page_size;
extern char *area_src, *area_src_alias, *area_dst, *area_dst_alias, *area_remap;
extern int uffd, uffd_flags, finished, *pipefd, test_type;
-extern bool map_shared, test_dev_userfaultfd;
+extern bool map_shared;
extern bool test_uffdio_wp;
extern unsigned long long *count_verify;
extern volatile bool test_uffdio_copy_eexist;
diff --git a/tools/testing/selftests/mm/uffd-stress.c b/tools/testing/selftests/mm/uffd-stress.c
index c0e804f05002..4e071a7d0ff5 100644
--- a/tools/testing/selftests/mm/uffd-stress.c
+++ b/tools/testing/selftests/mm/uffd-stress.c
@@ -55,8 +55,6 @@ pthread_attr_t attr;
const char *examples =
"# Run anonymous memory test on 100MiB region with 99999 bounces:\n"
"./userfaultfd anon 100 99999\n\n"
- "# Run the same anonymous memory test, but using /dev/userfaultfd:\n"
- "./userfaultfd anon:dev 100 99999\n\n"
"# Run share memory test on 1GiB region with 99 bounces:\n"
"./userfaultfd shmem 1000 99\n\n"
"# Run hugetlb memory test on 256MiB region with 50 bounces:\n"
@@ -69,18 +67,9 @@ const char *examples =
static void usage(void)
{
- fprintf(stderr, "\nUsage: ./userfaultfd <test type> <MiB> <bounces> "
- "[hugetlbfs_file]\n\n");
+ fprintf(stderr, "\nUsage: ./userfaultfd <test type> <MiB> <bounces>\n\n");
fprintf(stderr, "Supported <test type>: anon, hugetlb, "
"hugetlb_shared, shmem\n\n");
- fprintf(stderr, "'Test mods' can be joined to the test type string with a ':'. "
- "Supported mods:\n");
- fprintf(stderr, "\tsyscall - Use userfaultfd(2) (default)\n");
- fprintf(stderr, "\tdev - Use /dev/userfaultfd instead of userfaultfd(2)\n");
- fprintf(stderr, "\nExample test mod usage:\n");
- fprintf(stderr, "# Run anonymous memory test with /dev/userfaultfd:\n");
- fprintf(stderr, "./userfaultfd anon:dev 100 99999\n\n");
-
fprintf(stderr, "Examples:\n\n");
fprintf(stderr, "%s", examples);
exit(1);
@@ -400,21 +389,9 @@ static void set_test_type(const char *type)
static void parse_test_type_arg(const char *raw_type)
{
- char *buf = strdup(raw_type);
uint64_t features = UFFD_API_FEATURES;
- while (buf) {
- const char *token = strsep(&buf, ":");
-
- if (!test_type)
- set_test_type(token);
- else if (!strcmp(token, "dev"))
- test_dev_userfaultfd = true;
- else if (!strcmp(token, "syscall"))
- test_dev_userfaultfd = false;
- else
- err("unrecognized test mod '%s'", token);
- }
+ set_test_type(raw_type);
if (!test_type)
err("failed to parse test type argument: '%s'", raw_type);