KVM: selftests: Change backing_src flag to -s in demand_paging_test

Every other KVM selftest uses -s for the backing_src, so switch
demand_paging_test to match.

Reviewed-by: Ben Gardon <bgardon@google.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: David Matlack <dmatlack@google.com>
Message-Id: <20210917173657.44011-2-dmatlack@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/tools/testing/selftests/kvm/demand_paging_test.c b/tools/testing/selftests/kvm/demand_paging_test.c
index 10edae425ab3c140336cc227c3258f5076f348cb..71e18e9a3c130dd7e1dc0fb32e9baf4dc83ad3be 100644 (file)
--- a/tools/testing/selftests/kvm/demand_paging_test.c
+++ b/tools/testing/selftests/kvm/demand_paging_test.c
@@ -416,7 +416,7 @@ static void help(char *name)
 {
        puts("");
        printf("usage: %s [-h] [-m vm_mode] [-u uffd_mode] [-d uffd_delay_usec]\n"
-              "          [-b memory] [-t type] [-v vcpus] [-o]\n", name);
+              "          [-b memory] [-s type] [-v vcpus] [-o]\n", name);
        guest_modes_help();
        printf(" -u: use userfaultfd to handle vCPU page faults. Mode is a\n"
               "     UFFD registration mode: 'MISSING' or 'MINOR'.\n");
@@ -426,7 +426,7 @@ static void help(char *name)
        printf(" -b: specify the size of the memory region which should be\n"
               "     demand paged by each vCPU. e.g. 10M or 3G.\n"
               "     Default: 1G\n");
-       printf(" -t: The type of backing memory to use. Default: anonymous\n");
+       printf(" -s: The type of backing memory to use. Default: anonymous\n");
        backing_src_help();
        printf(" -v: specify the number of vCPUs to run.\n");
        printf(" -o: Overlap guest memory accesses instead of partitioning\n"
@@ -446,7 +446,7 @@ int main(int argc, char *argv[])
 
        guest_modes_append_default();
 
-       while ((opt = getopt(argc, argv, "hm:u:d:b:t:v:o")) != -1) {
+       while ((opt = getopt(argc, argv, "hm:u:d:b:s:v:o")) != -1) {
                switch (opt) {
                case 'm':
                        guest_modes_cmdline(optarg);
@@ -465,7 +465,7 @@ int main(int argc, char *argv[])
                case 'b':
                        guest_percpu_mem_size = parse_size(optarg);
                        break;
-               case 't':
+               case 's':
                        p.src_type = parse_backing_src_type(optarg);
                        break;
                case 'v':
@@ -485,7 +485,7 @@ int main(int argc, char *argv[])
 
        if (p.uffd_mode == UFFDIO_REGISTER_MODE_MINOR &&
            !backing_src_is_shared(p.src_type)) {
-               TEST_FAIL("userfaultfd MINOR mode requires shared memory; pick a different -t");
+               TEST_FAIL("userfaultfd MINOR mode requires shared memory; pick a different -s");
        }
 
        for_each_guest_mode(run_test, &p);