1*63d1fd59SEnji Cooper /* $NetBSD: t_renamerace.c,v 1.34 2017/01/13 21:30:40 christos Exp $ */
257718be8SEnji Cooper
357718be8SEnji Cooper /*
457718be8SEnji Cooper * Modified for rump and atf from a program supplied
557718be8SEnji Cooper * by Nicolas Joly in kern/40948
657718be8SEnji Cooper */
757718be8SEnji Cooper
857718be8SEnji Cooper #include <sys/types.h>
957718be8SEnji Cooper #include <sys/mount.h>
1057718be8SEnji Cooper #include <sys/utsname.h>
1157718be8SEnji Cooper
1257718be8SEnji Cooper #include <atf-c.h>
1357718be8SEnji Cooper #include <errno.h>
1457718be8SEnji Cooper #include <fcntl.h>
1557718be8SEnji Cooper #include <pthread.h>
1657718be8SEnji Cooper #include <stdio.h>
1757718be8SEnji Cooper #include <stdlib.h>
1857718be8SEnji Cooper #include <string.h>
1957718be8SEnji Cooper #include <unistd.h>
2057718be8SEnji Cooper
2157718be8SEnji Cooper #include <rump/rump.h>
2257718be8SEnji Cooper #include <rump/rump_syscalls.h>
2357718be8SEnji Cooper
2457718be8SEnji Cooper /* Bump the size of the test file system image to a larger value.
2557718be8SEnji Cooper *
2657718be8SEnji Cooper * These tests cause a lot of churn in the file system by creating and
2757718be8SEnji Cooper * deleting files/directories in quick succession. A faster CPU will cause
2857718be8SEnji Cooper * more churn because the tests are capped by a run time period in seconds,
2957718be8SEnji Cooper * not number of operations.
3057718be8SEnji Cooper *
3157718be8SEnji Cooper * This is all fine except for LFS, because the lfs_cleanerd cannot keep up
3257718be8SEnji Cooper * with the churn and thus causes the test to fail on fast machines. Hence
3357718be8SEnji Cooper * the reason for this hack. */
3457718be8SEnji Cooper #define FSTEST_IMGSIZE (50000 * 512)
3557718be8SEnji Cooper
3657718be8SEnji Cooper #include "../common/h_fsmacros.h"
37*63d1fd59SEnji Cooper #include "h_macros.h"
3857718be8SEnji Cooper
3957718be8SEnji Cooper static volatile int quittingtime;
4057718be8SEnji Cooper pid_t wrkpid;
4157718be8SEnji Cooper
4257718be8SEnji Cooper static void *
w1(void * arg)4357718be8SEnji Cooper w1(void *arg)
4457718be8SEnji Cooper {
4557718be8SEnji Cooper int fd;
4657718be8SEnji Cooper
4757718be8SEnji Cooper rump_pub_lwproc_newlwp(wrkpid);
4857718be8SEnji Cooper
4957718be8SEnji Cooper while (!quittingtime) {
5057718be8SEnji Cooper fd = rump_sys_open("rename.test1",
5157718be8SEnji Cooper O_WRONLY|O_CREAT|O_TRUNC, 0666);
5257718be8SEnji Cooper if (fd == -1 && errno != EEXIST)
5357718be8SEnji Cooper atf_tc_fail_errno("create");
5457718be8SEnji Cooper rump_sys_unlink("rename.test1");
5557718be8SEnji Cooper rump_sys_close(fd);
5657718be8SEnji Cooper }
5757718be8SEnji Cooper
5857718be8SEnji Cooper return NULL;
5957718be8SEnji Cooper }
6057718be8SEnji Cooper
6157718be8SEnji Cooper static void *
w1_dirs(void * arg)6257718be8SEnji Cooper w1_dirs(void *arg)
6357718be8SEnji Cooper {
6457718be8SEnji Cooper
6557718be8SEnji Cooper rump_pub_lwproc_newlwp(wrkpid);
6657718be8SEnji Cooper
6757718be8SEnji Cooper while (!quittingtime) {
6857718be8SEnji Cooper if (rump_sys_mkdir("rename.test1", 0777) == -1)
6957718be8SEnji Cooper atf_tc_fail_errno("mkdir");
7057718be8SEnji Cooper rump_sys_rmdir("rename.test1");
7157718be8SEnji Cooper }
7257718be8SEnji Cooper
7357718be8SEnji Cooper return NULL;
7457718be8SEnji Cooper }
7557718be8SEnji Cooper
7657718be8SEnji Cooper static void *
w2(void * arg)7757718be8SEnji Cooper w2(void *arg)
7857718be8SEnji Cooper {
7957718be8SEnji Cooper
8057718be8SEnji Cooper rump_pub_lwproc_newlwp(wrkpid);
8157718be8SEnji Cooper
8257718be8SEnji Cooper while (!quittingtime) {
8357718be8SEnji Cooper rump_sys_rename("rename.test1", "rename.test2");
8457718be8SEnji Cooper }
8557718be8SEnji Cooper
8657718be8SEnji Cooper return NULL;
8757718be8SEnji Cooper }
8857718be8SEnji Cooper
8957718be8SEnji Cooper #define NWRK 8
9057718be8SEnji Cooper static void
renamerace(const atf_tc_t * tc,const char * mp)9157718be8SEnji Cooper renamerace(const atf_tc_t *tc, const char *mp)
9257718be8SEnji Cooper {
9357718be8SEnji Cooper pthread_t pt1[NWRK], pt2[NWRK];
9457718be8SEnji Cooper int i;
9557718be8SEnji Cooper
9657718be8SEnji Cooper /*
9757718be8SEnji Cooper * Sysvbfs supports only 8 inodes so this test would exhaust
9857718be8SEnji Cooper * the inode table and creating files would fail with ENOSPC.
9957718be8SEnji Cooper */
10057718be8SEnji Cooper if (FSTYPE_SYSVBFS(tc))
10157718be8SEnji Cooper atf_tc_skip("filesystem has not enough inodes");
10257718be8SEnji Cooper if (FSTYPE_RUMPFS(tc))
10357718be8SEnji Cooper atf_tc_skip("rename not supported by file system");
10457718be8SEnji Cooper if (FSTYPE_UDF(tc))
10557718be8SEnji Cooper atf_tc_expect_fail("PR kern/49046");
10657718be8SEnji Cooper
10757718be8SEnji Cooper RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
10857718be8SEnji Cooper RL(wrkpid = rump_sys_getpid());
10957718be8SEnji Cooper
11057718be8SEnji Cooper RL(rump_sys_chdir(mp));
11157718be8SEnji Cooper for (i = 0; i < NWRK; i++)
11257718be8SEnji Cooper pthread_create(&pt1[i], NULL, w1, NULL);
11357718be8SEnji Cooper
11457718be8SEnji Cooper for (i = 0; i < NWRK; i++)
11557718be8SEnji Cooper pthread_create(&pt2[i], NULL, w2, NULL);
11657718be8SEnji Cooper
11757718be8SEnji Cooper sleep(5);
11857718be8SEnji Cooper quittingtime = 1;
11957718be8SEnji Cooper
12057718be8SEnji Cooper for (i = 0; i < NWRK; i++)
12157718be8SEnji Cooper pthread_join(pt1[i], NULL);
12257718be8SEnji Cooper for (i = 0; i < NWRK; i++)
12357718be8SEnji Cooper pthread_join(pt2[i], NULL);
12457718be8SEnji Cooper RL(rump_sys_chdir("/"));
12557718be8SEnji Cooper
12657718be8SEnji Cooper if (FSTYPE_UDF(tc))
12757718be8SEnji Cooper atf_tc_fail("race did not trigger this time");
12857718be8SEnji Cooper
12957718be8SEnji Cooper if (FSTYPE_MSDOS(tc)) {
130640235e2SEnji Cooper atf_tc_expect_fail("PR kern/43626");
13157718be8SEnji Cooper /*
13257718be8SEnji Cooper * XXX: race does not trigger every time at least
13357718be8SEnji Cooper * on amd64/qemu.
13457718be8SEnji Cooper */
13557718be8SEnji Cooper if (msdosfs_fstest_unmount(tc, mp, 0) != 0) {
13657718be8SEnji Cooper rump_pub_vfs_mount_print(mp, 1);
13757718be8SEnji Cooper atf_tc_fail_errno("unmount failed");
13857718be8SEnji Cooper }
13957718be8SEnji Cooper atf_tc_fail("race did not trigger this time");
14057718be8SEnji Cooper }
14157718be8SEnji Cooper }
14257718be8SEnji Cooper
14357718be8SEnji Cooper static void
renamerace_dirs(const atf_tc_t * tc,const char * mp)14457718be8SEnji Cooper renamerace_dirs(const atf_tc_t *tc, const char *mp)
14557718be8SEnji Cooper {
14657718be8SEnji Cooper pthread_t pt1, pt2;
14757718be8SEnji Cooper
14857718be8SEnji Cooper if (FSTYPE_SYSVBFS(tc))
14957718be8SEnji Cooper atf_tc_skip("directories not supported by file system");
15057718be8SEnji Cooper
15157718be8SEnji Cooper if (FSTYPE_RUMPFS(tc))
15257718be8SEnji Cooper atf_tc_skip("rename not supported by file system");
15357718be8SEnji Cooper
15457718be8SEnji Cooper /* XXX: msdosfs also sometimes hangs */
15557718be8SEnji Cooper if (FSTYPE_MSDOS(tc))
15657718be8SEnji Cooper atf_tc_expect_signal(-1, "PR kern/43626");
15757718be8SEnji Cooper
15857718be8SEnji Cooper RZ(rump_pub_lwproc_rfork(RUMP_RFCFDG));
15957718be8SEnji Cooper RL(wrkpid = rump_sys_getpid());
16057718be8SEnji Cooper
16157718be8SEnji Cooper RL(rump_sys_chdir(mp));
16257718be8SEnji Cooper pthread_create(&pt1, NULL, w1_dirs, NULL);
16357718be8SEnji Cooper pthread_create(&pt2, NULL, w2, NULL);
16457718be8SEnji Cooper
16557718be8SEnji Cooper sleep(5);
16657718be8SEnji Cooper quittingtime = 1;
16757718be8SEnji Cooper
16857718be8SEnji Cooper pthread_join(pt1, NULL);
16957718be8SEnji Cooper pthread_join(pt2, NULL);
17057718be8SEnji Cooper RL(rump_sys_chdir("/"));
17157718be8SEnji Cooper
17257718be8SEnji Cooper /*
17357718be8SEnji Cooper * Doesn't always trigger when run on a slow backend
17457718be8SEnji Cooper * (i.e. not on tmpfs/mfs). So do the usual kludge.
17557718be8SEnji Cooper */
17657718be8SEnji Cooper if (FSTYPE_MSDOS(tc))
17757718be8SEnji Cooper abort();
17857718be8SEnji Cooper }
17957718be8SEnji Cooper
18057718be8SEnji Cooper ATF_TC_FSAPPLY(renamerace, "rename(2) race with file unlinked mid-operation");
18157718be8SEnji Cooper ATF_TC_FSAPPLY(renamerace_dirs, "rename(2) race with directories");
18257718be8SEnji Cooper
ATF_TP_ADD_TCS(tp)18357718be8SEnji Cooper ATF_TP_ADD_TCS(tp)
18457718be8SEnji Cooper {
18557718be8SEnji Cooper
18657718be8SEnji Cooper ATF_TP_FSAPPLY(renamerace); /* PR kern/41128 */
18757718be8SEnji Cooper ATF_TP_FSAPPLY(renamerace_dirs);
18857718be8SEnji Cooper
18957718be8SEnji Cooper return atf_no_error();
19057718be8SEnji Cooper }
191