ztest.c revision 1195e687f1c03c8d57417b5999578922e20a3554
fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER START
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441d80aa4f613b6298fc8bd3151f4be02dbf84fclling * Common Development and Distribution License (the "License").
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fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
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fa9e4066f08beec538e775443c5be79dd423fcabahrens * CDDL HEADER END
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Use is subject to license terms.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The objective of this program is to provide a DMU/ZAP/SPA stress test
fa9e4066f08beec538e775443c5be79dd423fcabahrens * that runs entirely in userland, is easy to use, and easy to extend.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The overall design of the ztest program is as follows:
fa9e4066f08beec538e775443c5be79dd423fcabahrens * (1) For each major functional area (e.g. adding vdevs to a pool,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * creating and destroying datasets, reading and writing objects, etc)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * we have a simple routine to test that functionality. These
fa9e4066f08beec538e775443c5be79dd423fcabahrens * individual routines do not have to do anything "stressful".
fa9e4066f08beec538e775443c5be79dd423fcabahrens * (2) We turn these simple functionality tests into a stress test by
fa9e4066f08beec538e775443c5be79dd423fcabahrens * running them all in parallel, with as many threads as desired,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and spread across as many datasets, objects, and vdevs as desired.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * (3) While all this is happening, we inject faults into the pool to
fa9e4066f08beec538e775443c5be79dd423fcabahrens * verify that self-healing data really works.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * (4) Every time we open a dataset, we change its checksum and compression
fa9e4066f08beec538e775443c5be79dd423fcabahrens * functions. Thus even individual objects vary from block to block
fa9e4066f08beec538e775443c5be79dd423fcabahrens * in which checksum they use and whether they're compressed.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * (5) To verify that we never lose on-disk consistency after a crash,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * we run the entire test in a child of the main process.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * At random times, the child self-immolates with a SIGKILL.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This is the software equivalent of pulling the power cord.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The parent then runs the test again, using the existing
fa9e4066f08beec538e775443c5be79dd423fcabahrens * storage pool, as many times as desired.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * (6) To verify that we don't have future leaks or temporal incursions,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * many of the functional tests record the transaction group number
fa9e4066f08beec538e775443c5be79dd423fcabahrens * as part of their data. When reading old data, they verify that
fa9e4066f08beec538e775443c5be79dd423fcabahrens * the transaction group number is less than the current, open txg.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If you add a new test, please do this if applicable.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * When run with no arguments, ztest runs for about five minutes and
fa9e4066f08beec538e775443c5be79dd423fcabahrens * produces no output if successful. To get a little bit of information,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * specify -V. To get more information, specify -VV, and so on.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * To turn this into an overnight stress test, use -T to specify run time.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * You can ask more more vdevs [-v], datasets [-d], or threads [-t]
fa9e4066f08beec538e775443c5be79dd423fcabahrens * to increase the pool capacity, fanout, and overall stress level.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The -N(okill) option will suppress kills, so each child runs to completion.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This can be useful when you're trying to distinguish temporal incursions
fa9e4066f08beec538e775443c5be79dd423fcabahrens * from plain old race conditions.
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic uint64_t zopt_killrate = 70; /* 70% kill rate */
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic int zopt_verbose = 0;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante#define MAXFAULTS() (MAX(zs->zs_mirrors, 1) * (zopt_raidz_parity + 1) - 1)
e05725b117836db173257fae43fb0746eb857fb5bonwicktypedef struct ztest_block_tag {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct bufwad {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * XXX -- fix zfs range locks to be generic so we can use them here.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef enum {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct rll {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct rl {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Object descriptor. Used as a template for object lookup/create/remove.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct ztest_od {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Per-dataset state.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct ztest_ds {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Per-iteration state.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef void ztest_func_t(ztest_ds_t *zd, uint64_t id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwicktypedef struct ztest_info {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t zi_iters; /* iterations per execution */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t *zi_interval; /* execute every <interval> seconds */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t zi_call_next; /* next time to call this function */
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Note: these aren't static because we want dladdr() to work.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickuint64_t zopt_always = 0ULL * NANOSEC; /* all the time */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickuint64_t zopt_incessant = 1ULL * NANOSEC / 10; /* every 1/10 second */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickuint64_t zopt_often = 1ULL * NANOSEC; /* every second */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickuint64_t zopt_sometimes = 10ULL * NANOSEC; /* every 10 seconds */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickuint64_t zopt_rarely = 60ULL * NANOSEC; /* every 60 seconds */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { ztest_dmu_write_parallel, 10, &zopt_always },
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { ztest_dmu_commit_callbacks, 1, &zopt_always },
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { ztest_dmu_read_write_zcopy, 1, &zopt_often },
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { ztest_dmu_objset_create_destroy, 1, &zopt_often },
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { ztest_spa_prop_get_set, 1, &zopt_sometimes },
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { ztest_dmu_snapshot_create_destroy, 1, &zopt_sometimes },
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { ztest_spa_create_destroy, 1, &zopt_sometimes },
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby { ztest_dmu_snapshot_hold, 1, &zopt_sometimes },
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick { ztest_dsl_dataset_promote_busy, 1, &zopt_rarely },
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick { ztest_vdev_aux_add_remove, 1, &zopt_vdevtime },
fa9e4066f08beec538e775443c5be79dd423fcabahrens#define ZTEST_FUNCS (sizeof (ztest_info) / sizeof (ztest_info_t))
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * The following struct is used to hold a list of uncalled commit callbacks.
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * The callbacks are ordered by txg number.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Stuff we need to share writably between parent and child.
fa9e4066f08beec538e775443c5be79dd423fcabahrenstypedef struct ztest_shared {
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickstatic char ztest_aux_template[] = "%s/%s.%s.%llu";
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia/* Global commit callback list */
fa9e4066f08beec538e775443c5be79dd423fcabahrens * These libumem hooks provide a reasonable set of defaults for the allocator's
fa9e4066f08beec538e775443c5be79dd423fcabahrens * debugging facilities.
fa9e4066f08beec538e775443c5be79dd423fcabahrensconst char *
fa9e4066f08beec538e775443c5be79dd423fcabahrens return ("default,verbose"); /* $UMEM_DEBUG setting */
fa9e4066f08beec538e775443c5be79dd423fcabahrensconst char *
fa9e4066f08beec538e775443c5be79dd423fcabahrens return ("fail,contents"); /* $UMEM_LOGGING setting */
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* LINTED */
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) snprintf(buf + strlen(buf), FATAL_MSG_SZ - strlen(buf),
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);
f1b4288b3b466065edd5eb9868399db6a4ff283evb (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n",
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (buf[1] == '\0' || (toupper(buf[1]) == 'B' && buf[2] == '\0')) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (10*i);
f1b4288b3b466065edd5eb9868399db6a4ff283evb (void) fprintf(stderr, "ztest: invalid bytes suffix: %s\n", buf);
f1b4288b3b466065edd5eb9868399db6a4ff283evb /* NOTREACHED */
f1b4288b3b466065edd5eb9868399db6a4ff283evb (void) fprintf(stderr, "ztest: bad numeric value: %s\n", buf);
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-v vdevs (default: %llu)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-s size_of_each_vdev (default: %s)]\n"
ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick "\t[-a alignment_shift (default: %d) (use 0 for random)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-m mirror_copies (default: %d)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-r raidz_disks (default: %d)]\n"
99653d4ee642c6528e88224f12409a5f23060994eschrock "\t[-R raidz_parity (default: %d)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-d datasets (default: %d)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-t threads (default: %d)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-g gang_block_threshold (default: %s)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-i initialize pool i times (default: %d)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-k kill percentage (default: %llu%%)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-p pool_name (default: %s)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-f file directory for vdev files (default: %s)]\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-V(erbose)] (use multiple times for ever more blather)\n"
ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick "\t[-E(xisting)] (use existing pool instead of creating new one)\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-T time] total run time (default: %llu sec)\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens "\t[-P passtime] time per pass (default: %llu sec)\n"
f1b4288b3b466065edd5eb9868399db6a4ff283evb "\t[-h] (print help)\n"
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* By default, test gang blocks for blocks 32K and greater */
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick "v:s:a:m:r:R:d:t:g:i:k:p:f:VET:P:h")) != EOF) {
e05725b117836db173257fae43fb0746eb857fb5bonwick metaslab_gang_bang = MAX(SPA_MINBLOCKSIZE << 1, value);
99653d4ee642c6528e88224f12409a5f23060994eschrock zopt_raidz_parity = MIN(zopt_raidz_parity, zopt_raidz - 1);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zopt_vdevtime = (zopt_vdevs > 0 ? zopt_time * NANOSEC / zopt_vdevs :
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(zs->zs_spa));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zs->zs_space = metaslab_class_get_space(spa_normal_class(zs->zs_spa));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (read(ztest_random_fd, &r, sizeof (r)) != sizeof (r))
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return (r % range);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickmake_vdev_file(char *path, char *aux, size_t size, uint64_t ashift)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick int fd = open(path, O_RDWR | O_CREAT | O_TRUNC, 0666);
fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_TYPE, VDEV_TYPE_FILE) == 0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick VERIFY(nvlist_add_string(file, ZPOOL_CONFIG_PATH, path) == 0);
ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick VERIFY(nvlist_add_uint64(file, ZPOOL_CONFIG_ASHIFT, ashift) == 0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickmake_vdev_raidz(char *path, char *aux, size_t size, uint64_t ashift, int r)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick return (make_vdev_file(path, aux, size, ashift));
fa9e4066f08beec538e775443c5be79dd423fcabahrens child = umem_alloc(r * sizeof (nvlist_t *), UMEM_NOFAIL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < r; c++)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick child[c] = make_vdev_file(path, aux, size, ashift);
fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY(nvlist_alloc(&raidz, NV_UNIQUE_NAME, 0) == 0);
99653d4ee642c6528e88224f12409a5f23060994eschrock VERIFY(nvlist_add_uint64(raidz, ZPOOL_CONFIG_NPARITY,
fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY(nvlist_add_nvlist_array(raidz, ZPOOL_CONFIG_CHILDREN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < r; c++)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickmake_vdev_mirror(char *path, char *aux, size_t size, uint64_t ashift,
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick int r, int m)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick return (make_vdev_raidz(path, aux, size, ashift, r));
fa9e4066f08beec538e775443c5be79dd423fcabahrens child = umem_alloc(m * sizeof (nvlist_t *), UMEM_NOFAIL);
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < m; c++)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick child[c] = make_vdev_raidz(path, aux, size, ashift, r);
fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY(nvlist_alloc(&mirror, NV_UNIQUE_NAME, 0) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY(nvlist_add_nvlist_array(mirror, ZPOOL_CONFIG_CHILDREN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < m; c++)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwickmake_vdev_root(char *path, char *aux, size_t size, uint64_t ashift,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick int log, int r, int m, int t)
fa9e4066f08beec538e775443c5be79dd423fcabahrens child = umem_alloc(t * sizeof (nvlist_t *), UMEM_NOFAIL);
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick for (c = 0; c < t; c++) {
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick child[c] = make_vdev_mirror(path, aux, size, ashift, r, m);
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick VERIFY(nvlist_add_uint64(child[c], ZPOOL_CONFIG_IS_LOG,
fa9e4066f08beec538e775443c5be79dd423fcabahrens VERIFY(nvlist_add_string(root, ZPOOL_CONFIG_TYPE, VDEV_TYPE_ROOT) == 0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick VERIFY(nvlist_add_nvlist_array(root, aux ? aux : ZPOOL_CONFIG_CHILDREN,
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (c = 0; c < t; c++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_random(SPA_MAXBLOCKSHIFT - SPA_MINBLOCKSHIFT + 1)));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_random(DN_MAX_INDBLKSHIFT - DN_MIN_INDBLKSHIFT + 1));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_random_vdev_top(spa_t *spa, boolean_t log_ok)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick } while (tvd->vdev_ishole || (tvd->vdev_islog && !log_ok) ||
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick tvd->vdev_mg == NULL || tvd->vdev_mg->mg_class == NULL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick value = zfs_prop_random_value(prop, ztest_random(-1ULL));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick } while (prop == ZFS_PROP_CHECKSUM && value == ZIO_CHECKSUM_OFF);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dsl_prop_set_uint64(char *osname, zfs_prop_t prop, uint64_t value,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(dsl_prop_get(osname, propname, sizeof (curval),
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(zfs_prop_index_to_string(prop, curval, &valname) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_spa_prop_set_uint64(ztest_shared_t *zs, zpool_prop_t prop, uint64_t value)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(nvlist_add_uint64(props, zpool_prop_to_name(prop), value) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(_mutex_init(&rll->rll_lock, USYNC_THREAD, NULL) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(cond_init(&rll->rll_cv, USYNC_THREAD, NULL) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) cond_wait(&rll->rll_cv, &rll->rll_lock);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick while (rll->rll_writer != NULL || rll->rll_readers)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) cond_wait(&rll->rll_cv, &rll->rll_lock);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (rll->rll_writer == NULL && rll->rll_readers == 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_object_lock(ztest_ds_t *zd, uint64_t object, rl_type_t type)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_object_unlock(ztest_ds_t *zd, uint64_t object)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick rll_t *rll = &zd->zd_object_lock[object & (ZTEST_OBJECT_LOCKS - 1)];
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_range_lock(ztest_ds_t *zd, uint64_t object, uint64_t offset,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t hash = object ^ (offset % (ZTEST_RANGE_LOCKS + 1));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick rll_t *rll = &zd->zd_range_lock[hash & (ZTEST_RANGE_LOCKS - 1)];
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(_mutex_init(&zd->zd_dirobj_lock, USYNC_THREAD, NULL) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int l = 0; l < ZTEST_OBJECT_LOCKS; l++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int l = 0; l < ZTEST_RANGE_LOCKS; l++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(_mutex_destroy(&zd->zd_dirobj_lock) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int l = 0; l < ZTEST_OBJECT_LOCKS; l++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int l = 0; l < ZTEST_RANGE_LOCKS; l++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick#define TXG_MIGHTWAIT (ztest_random(10) == 0 ? TXG_NOWAIT : TXG_WAIT)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_tx_assign(dmu_tx_t *tx, uint64_t txg_how, const char *tag)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Attempt to assign tx to some transaction group.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_pattern_set(void *buf, uint64_t size, uint64_t value)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_pattern_match(void *buf, uint64_t size, uint64_t value)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t *ip_end = (uint64_t *)((uintptr_t)buf + (uintptr_t)size);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return (diff == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_bt_generate(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_bt_verify(ztest_block_tag_t *bt, objset_t *os, uint64_t object,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t offset, uint64_t gen, uint64_t txg, uint64_t crtxg)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT3U(doi.doi_bonus_size, >=, sizeof (*bt));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick bt = (void *)((char *)db->db_data + doi.doi_bonus_size - sizeof (*bt));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * ZIL logging ops
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_log_create(ztest_ds_t *zd, dmu_tx_t *tx, lr_create_t *lr)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick char *name = (void *)(lr + 1); /* name follows lr */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick itx = zil_itx_create(TX_CREATE, sizeof (*lr) + namesize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return (zil_itx_assign(zd->zd_zilog, itx, tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_log_remove(ztest_ds_t *zd, dmu_tx_t *tx, lr_remove_t *lr)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick char *name = (void *)(lr + 1); /* name follows lr */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick itx = zil_itx_create(TX_REMOVE, sizeof (*lr) + namesize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return (zil_itx_assign(zd->zd_zilog, itx, tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_log_write(ztest_ds_t *zd, dmu_tx_t *tx, lr_write_t *lr)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick itx_wr_state_t write_state = ztest_random(WR_NUM_STATES);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick sizeof (*lr) + (write_state == WR_COPIED ? lr->lr_length : 0));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_read(zd->zd_os, lr->lr_foid, lr->lr_offset, lr->lr_length,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ((lr_write_t *)&itx->itx_lr) + 1, DMU_READ_NO_PREFETCH) != 0) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick itx->itx_sod += (write_state == WR_NEED_COPY ? lr->lr_length : 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return (zil_itx_assign(zd->zd_zilog, itx, tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_log_truncate(ztest_ds_t *zd, dmu_tx_t *tx, lr_truncate_t *lr)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick itx = zil_itx_create(TX_TRUNCATE, sizeof (*lr));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return (zil_itx_assign(zd->zd_zilog, itx, tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_log_setattr(ztest_ds_t *zd, dmu_tx_t *tx, lr_setattr_t *lr)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick itx = zil_itx_create(TX_SETATTR, sizeof (*lr));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick return (zil_itx_assign(zd->zd_zilog, itx, tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * ZIL replay ops
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_replay_create(ztest_ds_t *zd, lr_create_t *lr, boolean_t byteswap)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick char *name = (void *)(lr + 1); /* name follows lr */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_zap(tx, lr->lr_doid, B_TRUE, name);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_zap(tx, DMU_NEW_OBJECT, B_TRUE, NULL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(dmu_objset_zil(os)->zl_replay == !!lr->lr_foid);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_object_set_blocksize(os, lr->lr_foid,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_gen, txg, txg);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_add(os, lr->lr_doid, name, sizeof (uint64_t), 1,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_replay_remove(ztest_ds_t *zd, lr_remove_t *lr, boolean_t byteswap)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick char *name = (void *)(lr + 1); /* name follows lr */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zap_lookup(os, lr->lr_doid, name, sizeof (object), 1, &object));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_object_info(os, object, &doi));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_zap(tx, lr->lr_doid, B_FALSE, name);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_free(tx, object, 0, DMU_OBJECT_END);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_object_free(os, object, tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_remove(os, lr->lr_doid, name, tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_replay_write(ztest_ds_t *zd, lr_write_t *lr, boolean_t byteswap)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick /* If it's a dmu_sync() block, write the whole block */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (lr->lr_common.lrc_reclen == sizeof (lr_write_t)) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t blocksize = BP_GET_LSIZE(&lr->lr_blkptr);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick rl = ztest_range_lock(zd, lr->lr_foid, offset, length, RL_WRITER);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_write(tx, lr->lr_foid, offset, length);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_random(8) == 0 && length == doi.doi_data_block_size &&
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Usually, verify the old data before writing new data --
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * but not always, because we also want to verify correct
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * behavior when the data was not recently read into cache.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Writes can appear to be newer than the bonus buffer because
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * the ztest_get_data() callback does a dmu_read() of the
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * open-context data, which may be different than the data
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * as it was when the write was generated.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Set the bt's gen/txg to the bonus buffer's gen/txg
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * so that all of the usual ASSERTs will work.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_bt_generate(bt, os, lr->lr_foid, offset, gen, txg, crtxg);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_write(os, lr->lr_foid, offset, length, data, tx);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_replay_truncate(ztest_ds_t *zd, lr_truncate_t *lr, boolean_t byteswap)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick rl = ztest_range_lock(zd, lr->lr_foid, lr->lr_offset, lr->lr_length,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_free(tx, lr->lr_foid, lr->lr_offset, lr->lr_length);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(dmu_free_range(os, lr->lr_foid, lr->lr_offset,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_replay_setattr(ztest_ds_t *zd, lr_setattr_t *lr, boolean_t byteswap)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_bonus_hold(os, lr->lr_foid, FTAG, &db));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Randomly change the size and increment the generation.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick lr->lr_size = (ztest_random(db->db_size / sizeof (*bbt)) + 1) *
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify that the current bonus buffer is not newer than our txg.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_bt_verify(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(dmu_set_bonus(db, lr->lr_size, tx), ==, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_bt_generate(bbt, os, lr->lr_foid, -1ULL, lr->lr_mode, txg, crtxg);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickzil_replay_func_t *ztest_replay_vector[TX_MAX_TYPE] = {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * ZIL get_data callbacks
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_get_data(void *arg, lr_write_t *lr, char *buf, zio_t *zio)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = dmu_read(os, object, offset, size, buf,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zgd->zgd_rl = ztest_range_lock(zd, object, offset, size,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = dmu_buf_hold(os, object, offset, zgd, &db);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickstatic void *
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick lr = umem_zalloc(lrsize + namesize, UMEM_NOFAIL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_lr_free(void *lr, size_t lrsize, char *name)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Lookup a bunch of objects. Returns the number of objects not found.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_lookup(ztest_ds_t *zd, ztest_od_t *od, int count)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = zap_lookup(zd->zd_os, od->od_dir, od->od_name,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(missing == 0); /* there should be no gaps */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_object_lock(zd, od->od_object, RL_READER);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_create(ztest_ds_t *zd, ztest_od_t *od, int count)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick lr_create_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick lr->lr_foid = 0; /* 0 to allocate, > 0 to claim */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_replay_create(zd, lr, B_FALSE) != 0) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_remove(ztest_ds_t *zd, ztest_od_t *od, int count)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick lr_remove_t *lr = ztest_lr_alloc(sizeof (*lr), od->od_name);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if ((error = ztest_replay_remove(zd, lr, B_FALSE)) != 0) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_write(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick lr = ztest_lr_alloc(sizeof (*lr) + size, NULL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_truncate(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = ztest_replay_truncate(zd, lr, B_FALSE);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_prealloc(ztest_ds_t *zd, uint64_t object, uint64_t offset, uint64_t size)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick rl = ztest_range_lock(zd, object, offset, size, RL_WRITER);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) dmu_free_long_range(os, object, offset, size);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(dmu_object_info(zd->zd_os, object, &doi) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Pick an i/o type at random, biased toward writing block tags.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_bt_generate(&wbt, zd->zd_os, object, offset, 0, 0, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) ztest_write(zd, object, offset, sizeof (wbt), &wbt);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) memset(data, 'a' + (object + offset) % 5, blocksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Induce fletcher2 collisions to ensure that
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * zio_ddt_collision() detects and resolves them
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * when using fletcher2-verify for deduplication.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) ztest_write(zd, object, offset, blocksize, data);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) ztest_write(zd, object, offset, blocksize, data);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) ztest_truncate(zd, object, offset, blocksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Initialize an object description template.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_od_init(ztest_od_t *od, uint64_t id, char *tag, uint64_t index,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_object_type_t type, uint64_t blocksize, uint64_t gen)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick od->od_crblocksize = blocksize ? blocksize : ztest_random_blocksize();
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(od->od_name, sizeof (od->od_name), "%s(%lld)[%llu]",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Lookup or create the objects for a test using the od template.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * If the objects do not all exist, or if 'remove' is specified,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * remove any existing objects and create new ones. Otherwise,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * use the existing objects.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_object_init(ztest_ds_t *zd, ztest_od_t *od, size_t size, boolean_t remove)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if ((ztest_lookup(zd, od, count) != 0 || remove) &&
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(mutex_unlock(&zd->zd_dirobj_lock) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zil_commit(zilog, UINT64_MAX, ztest_random(ZTEST_OBJECTS));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Remember the committed values in zd, which is in parent/child
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * shared memory. If we die, the next iteration of ztest_run()
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * will verify that the log really does contain this record.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify that we can't destroy an active pool, create an existing pool,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * or create a pool with a bad vdev spec.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_spa_create_destroy(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Attempt to create using a bad file.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick spa_create("ztest_bad_file", nvroot, NULL, NULL, NULL));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Attempt to create using a bad mirror.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 2, 1);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick spa_create("ztest_bad_mirror", nvroot, NULL, NULL, NULL));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Attempt to create an existing pool. It shouldn't matter
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * what's in the nvroot; we should fail with EEXIST.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick nvroot = make_vdev_root("/dev/bogus", NULL, 0, 0, 0, 0, 0, 1);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(EEXIST, ==, spa_create(zs->zs_pool, nvroot, NULL, NULL, NULL));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickvdev_lookup_by_path(vdev_t *vd, const char *path)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (vd->vdev_path != NULL && strcmp(path, vd->vdev_path) == 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if ((mvd = vdev_lookup_by_path(vd->vdev_child[c], path)) !=
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Find the first available hole which can be used as a top-level.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(spa_config_held(spa, SCL_VDEV, RW_READER) == SCL_VDEV);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify that vdev_add() works as expected.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_vdev_add_remove(ztest_ds_t *zd, uint64_t id)
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante leaves = MAX(zs->zs_mirrors + zs->zs_splits, 1) * zopt_raidz;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_shared->zs_vdev_next_leaf = find_vdev_hole(spa) * leaves;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * If we have slogs then remove them 1/4 of the time.
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson if (spa_has_slogs(spa) && ztest_random(4) == 0) {
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson * Grab the guid from the head of the log class rotor.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick guid = spa_log_class(spa)->mc_rotor->mg_vd->vdev_guid;
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson * We have to grab the zs_name_lock as writer to
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson * prevent a race between removing a slog (dmu_objset_find)
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson * and destroying a dataset. Removing the slog will
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson * grab a reference on the dataset which may cause
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson * dmu_objset_destroy() to fail with EBUSY thus
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson * leaving the dataset in an inconsistent state.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(rw_wrlock(&ztest_shared->zs_name_lock) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(rw_unlock(&ztest_shared->zs_name_lock) == 0);
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson * Make 1/4 of the devices be log devices.
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante ztest_random(4) == 0, zopt_raidz, zs->zs_mirrors, 1);
88ecc943b4eb72f7c4fbbd8435997b85ef171fc3George Wilson else if (error != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(mutex_unlock(&ztest_shared->zs_vdev_lock) == 0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Verify that adding/removing aux devices (l2arc, hot spare) works as expected.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_vdev_aux_add_remove(ztest_ds_t *zd, uint64_t id)
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick if (sav->sav_count != 0 && ztest_random(4) == 0) {
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Pick a random device to remove.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick guid = sav->sav_vdevs[ztest_random(sav->sav_count)]->vdev_guid;
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Find an unused device we can add.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (void) sprintf(path, ztest_aux_template, zopt_dir,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Add a new device.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick fatal(0, "spa_vdev_add(%p) = %d", nvroot, error);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Remove an existing device. Sometimes, dirty its
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * vdev state first to make sure we handle removal
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * of devices that have pending state changes.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick fatal(0, "spa_vdev_remove(%llu) = %d", guid, error);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante * split a pool if it has mirror tlvdevs
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante/* ARGSUSED */
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante nvlist_t *tree, **child, *config, *split, **schild;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante uint_t c, children, schildren = 0, lastlogid = 0;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante /* ensure we have a useable config; mirrors of raidz aren't supported */
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante /* clean up the old pool, if any */
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante /* generate a config from the existing config */
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_lookup_nvlist(spa->spa_config, ZPOOL_CONFIG_VDEV_TREE,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_lookup_nvlist_array(tree, ZPOOL_CONFIG_CHILDREN, &child,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante schild = malloc(rvd->vdev_children * sizeof (nvlist_t *));
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante for (c = 0; c < children; c++) {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante if (tvd->vdev_islog || tvd->vdev_ops == &vdev_hole_ops) {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_alloc(&schild[schildren], NV_UNIQUE_NAME,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante ZPOOL_CONFIG_CHILDREN, &mchild, &mchildren) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_dup(mchild[0], &schild[schildren++], 0) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante /* OK, create a config that can be used to split */
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_alloc(&split, NV_UNIQUE_NAME, 0) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_add_string(split, ZPOOL_CONFIG_TYPE,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_add_nvlist_array(split, ZPOOL_CONFIG_CHILDREN, schild,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante lastlogid != 0 ? lastlogid : schildren) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_alloc(&config, NV_UNIQUE_NAME, 0) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_add_nvlist(config, ZPOOL_CONFIG_VDEV_TREE, split) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante for (c = 0; c < schildren; c++)
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante error = spa_vdev_split_mirror(spa, "splitp", config, NULL, B_FALSE);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante (void) printf("successful split - results:\n");
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that we can attach and detach devices.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_vdev_attach_detach(ztest_ds_t *zd, uint64_t id)
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante leaves = MAX(zs->zs_mirrors, 1) * zopt_raidz;
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick spa_config_enter(spa, SCL_VDEV, FTAG, RW_READER);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Decide whether to do an attach or a replace.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Pick a random top-level vdev.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Pick a random leaf within it.
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * Locate this vdev.
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante ASSERT(oldvd->vdev_children >= zs->zs_mirrors);
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * If we're already doing an attach or replace, oldvd may be a
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * mirror vdev -- in which case, pick a random child.
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick oldvd = oldvd->vdev_child[ztest_random(oldvd->vdev_children)];
9af0a4dffb12fece9e4ca0a97721e6e05ca2bca9Jeff Bonwick * If oldvd has siblings, then half of the time, detach it.
9af0a4dffb12fece9e4ca0a97721e6e05ca2bca9Jeff Bonwick if (oldvd_has_siblings && ztest_random(2) == 0) {
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick error = spa_vdev_detach(spa, oldguid, pguid, B_FALSE);
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick if (error != 0 && error != ENODEV && error != EBUSY &&
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick fatal(0, "detach (%s) returned %d", oldpath, error);
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * For the new vdev, choose with equal probability between the two
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * standard paths (ending in either 'a' or 'b') or a random hot spare.
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick if (sav->sav_count != 0 && ztest_random(3) == 0) {
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick newvd = sav->sav_vdevs[ztest_random(sav->sav_count)];
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick (void) snprintf(newpath, sizeof (newpath), ztest_dev_template,
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * Make newsize a little bigger or smaller than oldsize.
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * If it's smaller, the attach should fail.
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * If it's larger, and we're doing a replace,
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick * we should get dynamic LUN growth when we're done.
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick newsize = 10 * oldsize / (9 + ztest_random(3));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If pvd is not a mirror or root, the attach should fail with ENOTSUP,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * unless it's a replace; in that case any non-replacing parent is OK.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * If newvd is already part of the pool, it should fail with EBUSY.
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * If newvd is too small, it should fail with EOVERFLOW.
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick pvd->vdev_ops != &vdev_root_ops && (!replacing ||
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick else if (newvd_is_spare && (!replacing || oldvd_is_log))
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick else if (vdev_lookup_by_path(rvd, newpath) != NULL)
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Build the nvlist describing newpath.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick root = make_vdev_root(newpath, NULL, newvd == NULL ? newsize : 0,
31157203d871bc0b4bc67d925b0a8424570774a1Jeff Bonwick error = spa_vdev_attach(spa, oldguid, root, replacing);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If our parent was the replacing vdev, but the replace completed,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * then instead of failing with ENOTSUP we may either succeed,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * fail with ENODEV, or fail with EOVERFLOW.
fa9e4066f08beec538e775443c5be79dd423fcabahrens (error == 0 || error == ENODEV || error == EOVERFLOW))
f0aa80d4da975c8ef3e34c15c60ea31e9b75f7a9bonwick * If someone grew the LUN, the replacement may be too small.
088f389458728c464569a5506b58070254fa4f7dahrens /* XXX workaround 6690467 */
088f389458728c464569a5506b58070254fa4f7dahrens if (error != expected_error && expected_error != EBUSY) {
088f389458728c464569a5506b58070254fa4f7dahrens "returned %d, expected %d",
088f389458728c464569a5506b58070254fa4f7dahrens (longlong_t)newsize, replacing, error, expected_error);
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * Callback function which expands the physical size of the vdev.
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson (void) printf("%s grew from %lu to %lu bytes\n",
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson vd->vdev_path, (ulong_t)fsize, (ulong_t)*newsize);
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * Callback function which expands a given vdev by calling vdev_online().
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson/* ARGSUSED */
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson uint64_t generation = spa->spa_config_generation + 1;
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson ASSERT(spa_config_held(spa, SCL_STATE, RW_READER) == SCL_STATE);
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson /* Calling vdev_online will initialize the new metaslabs */
095bcd6622e3b3520eb3b71039a3be5cfab25b74George Wilson error = vdev_online(spa, guid, ZFS_ONLINE_EXPAND, &newstate);
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson spa_config_enter(spa, SCL_STATE, spa, RW_READER);
095bcd6622e3b3520eb3b71039a3be5cfab25b74George Wilson * If vdev_online returned an error or the underlying vdev_open
095bcd6622e3b3520eb3b71039a3be5cfab25b74George Wilson * failed then we abort the expand. The only way to know that
095bcd6622e3b3520eb3b71039a3be5cfab25b74George Wilson * vdev_open fails is by checking the returned newstate.
095bcd6622e3b3520eb3b71039a3be5cfab25b74George Wilson if (error || newstate != VDEV_STATE_HEALTHY) {
095bcd6622e3b3520eb3b71039a3be5cfab25b74George Wilson (void) printf("Unable to expand vdev, state %llu, "
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * Since we dropped the lock we need to ensure that we're
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * still talking to the original vdev. It's possible this
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * vdev may have been detached/replaced while we were
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * trying to online it.
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson if (generation != spa->spa_config_generation) {
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson (void) printf("vdev configuration has changed, "
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson "guid %llu, state %llu, expected gen %llu, "
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick "got gen %llu\n",
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * Traverse the vdev tree calling the supplied function.
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * We continue to walk the tree until we either have walked all
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * children or we receive a non-NULL return from the callback.
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * If a NULL callback is passed, then we just return back the first
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * leaf vdev we encounter.
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilsonvdev_walk_tree(vdev_t *vd, vdev_t *(*func)(vdev_t *, void *), void *arg)
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson for (uint_t c = 0; c < vd->vdev_children; c++) {
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson if ((cvd = vdev_walk_tree(cvd, func, arg)) != NULL)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that dynamic LUN growth works as expected.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_vdev_LUN_growth(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t old_class_space, new_class_space, old_ms_count, new_ms_count;
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson spa_config_enter(spa, SCL_STATE, spa, RW_READER);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick old_class_space = metaslab_class_get_space(mc);
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * Determine the size of the first leaf vdev associated with
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * our top-level device.
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * We only try to expand the vdev if it's healthy, less than 4x its
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * original size, and it has a valid psize.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) printf("Expanding LUN %s from %lu to %lu\n",
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson vd->vdev_path, (ulong_t)psize, (ulong_t)newsize);
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * Growing the vdev is a two step process:
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * 1). expand the physical size (i.e. relabel)
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * 2). online the vdev to create the new metaslabs
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson if (vdev_walk_tree(tvd, grow_vdev, &newsize) != NULL ||
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson vdev_walk_tree(tvd, online_vdev, NULL) != NULL ||
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick "the vdev configuration changed.\n");
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Expanding the LUN will update the config asynchronously,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * thus we must wait for the async thread to complete any
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * pending tasks before proceeding.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick done = (spa->spa_async_thread == NULL && !spa->spa_async_tasks);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick spa_config_enter(spa, SCL_STATE, spa, RW_READER);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick new_class_space = metaslab_class_get_space(mc);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (tvd->vdev_mg != mg || mg->mg_class != mc) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) printf("Could not verify LUN expansion due to "
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick "intervening vdev offline or remove.\n");
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Make sure we were able to grow the vdev.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick fatal(0, "LUN expansion failed: ms_count %llu <= %llu\n",
573ca77e53dd31dcaebef023e7eb41969e6896c1George Wilson * Make sure we were able to grow the pool.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick fatal(0, "LUN expansion failed: class_space %llu <= %llu\n",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify that dmu_objset_{create,destroy,open,close} work as expected.
fa9e4066f08beec538e775443c5be79dd423fcabahrens/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_objset_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Create the objects common to all ztest datasets.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
fd1368791be99c4a6354fa81f08408c2dbf4b444Matthew Ahrensztest_objset_destroy_cb(const char *name, void *arg)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that the dataset contains a directory object.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = dmu_object_info(os, ZTEST_DIROBJ, &doi);
e19302335c33c8c6e0b0b5e426fc1f6352c84b5dbonwick /* We could have crashed in the middle of destroying it */
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Destroy the dataset.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_objset_destroy(name, B_FALSE));
1d452cf5123cb6ac0a013a4dbd4dcceeb0da314dahrens return (0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_snapshot_create(char *osname, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = dmu_objset_snapshot(osname, strchr(snapname, '@') + 1,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick fatal(0, "ztest_snapshot_create(%s) = %d", snapname, error);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_snapshot_destroy(char *osname, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snapname, MAXNAMELEN, "%s@%llu", osname,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick fatal(0, "ztest_snapshot_destroy(%s) = %d", snapname, error);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(name, MAXNAMELEN, "%s/temp_%llu",
fa9e4066f08beec538e775443c5be79dd423fcabahrens * If this dataset exists from a previous run, process its replay log
fa9e4066f08beec538e775443c5be79dd423fcabahrens * half of the time. If we don't replay it, then dmu_objset_destroy()
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * (invoked from ztest_objset_destroy_cb()) should just throw it away.
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrens dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os) == 0) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens * There may be an old instance of the dataset we're about to
fa9e4066f08beec538e775443c5be79dd423fcabahrens * create lying around from a previous run. If so, destroy it
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and all of its snapshots.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that the destroyed dataset is no longer in the namespace.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(ENOENT, ==, dmu_objset_hold(name, FTAG, &os));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that we can create a new dataset.
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens error = dmu_objset_create(name, DMU_OST_OTHER, 0,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Open the intent log for it.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Put some objects in there, do a little I/O to them,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * and randomly take a couple of snapshots along the way.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int i = 0; i < iters; i++) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that we cannot create an existing dataset.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_objset_create(name, DMU_OST_OTHER, 0, NULL, NULL));
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrens * Verify that we can hold an objset that is also owned.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_objset_hold(name, FTAG, &os2));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify that we cannot own an objset that is already owned.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_objset_own(name, DMU_OST_OTHER, B_FALSE, FTAG, &os2));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that dmu_snapshot_{create,destroy,open,close} work as expected.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dmu_snapshot_create_destroy(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) ztest_snapshot_destroy(zd->zd_name, id);
718d718a734e79bad0b9f8a264219b238fabaf44George Wilson * Cleanup non-standard snapshots and clones.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dsl_dataset_cleanup(char *osname, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id);
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby error = dmu_objset_destroy(clone2name, B_FALSE);
718d718a734e79bad0b9f8a264219b238fabaf44George Wilson fatal(0, "dmu_objset_destroy(%s) = %d", clone2name, error);
718d718a734e79bad0b9f8a264219b238fabaf44George Wilson fatal(0, "dmu_objset_destroy(%s) = %d", snap3name, error);
718d718a734e79bad0b9f8a264219b238fabaf44George Wilson fatal(0, "dmu_objset_destroy(%s) = %d", snap2name, error);
842727c2f41f01b380de4f5e787d905702870f23Chris Kirby error = dmu_objset_destroy(clone1name, B_FALSE);
718d718a734e79bad0b9f8a264219b238fabaf44George Wilson fatal(0, "dmu_objset_destroy(%s) = %d", clone1name, error);
718d718a734e79bad0b9f8a264219b238fabaf44George Wilson fatal(0, "dmu_objset_destroy(%s) = %d", snap1name, error);
4f5064b73b1cc9de1d0f1a2ae700d519d4d565dfMark J Musante * Verify dsl_dataset_promote handles EBUSY
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snap1name, MAXNAMELEN, "%s@s1_%llu", osname, id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(clone1name, MAXNAMELEN, "%s/c1_%llu", osname, id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snap2name, MAXNAMELEN, "%s@s2_%llu", clone1name, id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(clone2name, MAXNAMELEN, "%s/c2_%llu", osname, id);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snap3name, MAXNAMELEN, "%s@s3_%llu", clone1name, id);
ea2f5b9e5bf4966630882d6d681a94768aea1d75Matthew Ahrens error = dmu_objset_snapshot(osname, strchr(snap1name, '@')+1,
b2d22b66bc47a107891381986ae05e32ff517d10George Wilson fatal(0, "dmu_take_snapshot(%s) = %d", snap1name, error);
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrens error = dmu_objset_hold(snap1name, FTAG, &clone);
4f5064b73b1cc9de1d0f1a2ae700d519d4d565dfMark J Musante fatal(0, "dmu_open_snapshot(%s) = %d", snap1name, error);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens error = dmu_objset_clone(clone1name, dmu_objset_ds(clone), 0);
b2d22b66bc47a107891381986ae05e32ff517d10George Wilson fatal(0, "dmu_objset_create(%s) = %d", clone1name, error);
4f5064b73b1cc9de1d0f1a2ae700d519d4d565dfMark J Musante error = dmu_objset_snapshot(clone1name, strchr(snap2name, '@')+1,
b2d22b66bc47a107891381986ae05e32ff517d10George Wilson fatal(0, "dmu_open_snapshot(%s) = %d", snap2name, error);
4f5064b73b1cc9de1d0f1a2ae700d519d4d565dfMark J Musante error = dmu_objset_snapshot(clone1name, strchr(snap3name, '@')+1,
b2d22b66bc47a107891381986ae05e32ff517d10George Wilson fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error);
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrens error = dmu_objset_hold(snap3name, FTAG, &clone);
4f5064b73b1cc9de1d0f1a2ae700d519d4d565dfMark J Musante fatal(0, "dmu_open_snapshot(%s) = %d", snap3name, error);
ae46e4c775f2becc5343ff90b60a95acb79735f9Matthew Ahrens error = dmu_objset_clone(clone2name, dmu_objset_ds(clone), 0);
b2d22b66bc47a107891381986ae05e32ff517d10George Wilson fatal(0, "dmu_objset_create(%s) = %d", clone2name, error);
503ad85c168c7992ccc310af845a581cff3c72b5Matthew Ahrens error = dsl_dataset_own(snap1name, B_FALSE, FTAG, &ds);
4f5064b73b1cc9de1d0f1a2ae700d519d4d565dfMark J Musante fatal(0, "dsl_dataset_own(%s) = %d", snap1name, error);
4f5064b73b1cc9de1d0f1a2ae700d519d4d565dfMark J Musante fatal(0, "dsl_dataset_promote(%s), %d, not EBUSY", clone2name,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that dmu_object_{alloc,free} work as expected.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dmu_object_alloc_free(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int b = 0; b < batchsize; b++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[b], id, FTAG, b, DMU_OT_UINT64_OTHER, 0, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Destroy the previous batch of objects, create a new batch,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * and do some I/O on the new objects.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), B_TRUE) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_io(zd, od[ztest_random(batchsize)].od_object,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that dmu_{read,write} work as expected.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dmu_read_write(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t chunksize = (1000 + ztest_random(1000)) * sizeof (uint64_t);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This test uses two objects, packobj and bigobj, that are always
fa9e4066f08beec538e775443c5be79dd423fcabahrens * updated together (i.e. in the same tx) so that their contents are
fa9e4066f08beec538e775443c5be79dd423fcabahrens * in sync and can be compared. Their contents relate to each other
fa9e4066f08beec538e775443c5be79dd423fcabahrens * in a simple way: packobj is a dense array of 'bufwad' structures,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * while bigobj is a sparse array of the same bufwads. Specifically,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * for any index n, there are three bufwads that should be identical:
fa9e4066f08beec538e775443c5be79dd423fcabahrens * packobj, at offset n * sizeof (bufwad_t)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * bigobj, at the head of the nth chunk
fa9e4066f08beec538e775443c5be79dd423fcabahrens * bigobj, at the tail of the nth chunk
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The chunk size is arbitrary. It doesn't have to be a power of two,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and it doesn't have any relation to the object blocksize.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * The only requirement is that it can hold at least two bufwads.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Normally, we write the bufwad to each of these locations.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * However, free_percent of the time we instead write zeroes to
fa9e4066f08beec538e775443c5be79dd423fcabahrens * packobj and perform a dmu_free_range() on bigobj. By comparing
fa9e4066f08beec538e775443c5be79dd423fcabahrens * bigobj to packobj, we can verify that the DMU is correctly
fa9e4066f08beec538e775443c5be79dd423fcabahrens * tracking which parts of an object are allocated and free,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * and that the contents of the allocated blocks are correct.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Read the directory info. If it's the first time, set things up.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, chunksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Prefetch a random chunk of the big object.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Our aim here is to get some async reads in flight
fa9e4066f08beec538e775443c5be79dd423fcabahrens * for blocks that we may free below; the DMU should
fa9e4066f08beec538e775443c5be79dd423fcabahrens * handle this race correctly.
fa9e4066f08beec538e775443c5be79dd423fcabahrens n = ztest_random(regions) * stride + ztest_random(width);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_prefetch(os, bigobj, n * chunksize, s * chunksize);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Pick a random index and compute the offsets into packobj and bigobj.
fa9e4066f08beec538e775443c5be79dd423fcabahrens n = ztest_random(regions) * stride + ztest_random(width);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * free_percent of the time, free a range of bigobj rather than
fa9e4066f08beec538e775443c5be79dd423fcabahrens * overwriting it.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Read the current contents of our objects.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = dmu_read(os, packobj, packoff, packsize, packbuf,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = dmu_read(os, bigobj, bigoff, bigsize, bigbuf,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Get a tx for the mods to both packobj and bigobj.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_write(tx, packobj, packoff, packsize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (enum zio_checksum)ztest_random_dsl_prop(ZFS_PROP_CHECKSUM), tx);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (enum zio_compress)ztest_random_dsl_prop(ZFS_PROP_COMPRESSION), tx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * For each index from n to n + s, verify that the existing bufwad
fa9e4066f08beec538e775443c5be79dd423fcabahrens * in packobj matches the bufwads at the head and tail of the
fa9e4066f08beec538e775443c5be79dd423fcabahrens * corresponding chunk in bigobj. Then update all three bufwads
fa9e4066f08beec538e775443c5be79dd423fcabahrens * with the new values we want to write out.
fa9e4066f08beec538e775443c5be79dd423fcabahrens for (i = 0; i < s; i++) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* LINTED */
fa9e4066f08beec538e775443c5be79dd423fcabahrens pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* LINTED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* LINTED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
fa9e4066f08beec538e775443c5be79dd423fcabahrens ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * We've verified all the old bufwads, and made new ones.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Now write them out.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_write(os, packobj, packoff, packsize, packbuf, tx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens " txg %llx\n",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(0 == dmu_free_range(os, bigobj, bigoff, bigsize, tx));
fa9e4066f08beec538e775443c5be79dd423fcabahrens " txg %llx\n",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_write(os, bigobj, bigoff, bigsize, bigbuf, tx);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Sanity check the stuff we just wrote.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiycompare_and_update_pbbufs(uint64_t s, bufwad_t *packbuf, bufwad_t *bigbuf,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t bigsize, uint64_t n, uint64_t chunksize, uint64_t txg)
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * For each index from n to n + s, verify that the existing bufwad
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * in packobj matches the bufwads at the head and tail of the
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * corresponding chunk in bigobj. Then update all three bufwads
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * with the new values we want to write out.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy for (i = 0; i < s; i++) {
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy pack = (bufwad_t *)((char *)packbuf + i * sizeof (bufwad_t));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick bigH = (bufwad_t *)((char *)bigbuf + i * chunksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick bigT = (bufwad_t *)((char *)bigH + chunksize) - 1;
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy ASSERT((uintptr_t)bigH - (uintptr_t)bigbuf < bigsize);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy ASSERT((uintptr_t)bigT - (uintptr_t)bigbuf < bigsize);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy fatal(0, "future leak: got %llx, open txg is %llx",
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy if (pack->bw_data != 0 && pack->bw_index != n + i)
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy fatal(0, "wrong index: got %llx, wanted %llx+%llx",
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy if (bcmp(pack, bigH, sizeof (bufwad_t)) != 0)
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy fatal(0, "pack/bigH mismatch in %p/%p", pack, bigH);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy if (bcmp(pack, bigT, sizeof (bufwad_t)) != 0)
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy fatal(0, "pack/bigT mismatch in %p/%p", pack, bigT);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy pack->bw_data = 1 + ztest_random(-2ULL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dmu_read_write_zcopy(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t packobj, packoff, packsize, bigobj, bigoff, bigsize;
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * This test uses two objects, packobj and bigobj, that are always
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * updated together (i.e. in the same tx) so that their contents are
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * in sync and can be compared. Their contents relate to each other
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * in a simple way: packobj is a dense array of 'bufwad' structures,
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * while bigobj is a sparse array of the same bufwads. Specifically,
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * for any index n, there are three bufwads that should be identical:
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * packobj, at offset n * sizeof (bufwad_t)
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * bigobj, at the head of the nth chunk
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * bigobj, at the tail of the nth chunk
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * The chunk size is set equal to bigobj block size so that
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * dmu_assign_arcbuf() can be tested for object updates.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Read the directory info. If it's the first time, set things up.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[1], id, FTAG, 1, DMU_OT_UINT64_OTHER, 0, chunksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(dmu_object_info(os, bigobj, &doi) == 0);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Pick a random index and compute the offsets into packobj and bigobj.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy n = ztest_random(regions) * stride + ztest_random(width);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy packbuf = umem_zalloc(packsize, UMEM_NOFAIL);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy bigbuf = umem_zalloc(bigsize, UMEM_NOFAIL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, dmu_bonus_hold(os, bigobj, FTAG, &bonus_db));
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy bigbuf_arcbufs = umem_zalloc(2 * s * sizeof (arc_buf_t *), UMEM_NOFAIL);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Iteration 0 test zcopy for DB_UNCACHED dbufs.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Iteration 1 test zcopy to already referenced dbufs.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Iteration 2 test zcopy to dirty dbuf in the same txg.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Iteration 3 test zcopy to dbuf dirty in previous txg.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Iteration 4 test zcopy when dbuf is no longer dirty.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Iteration 5 test zcopy when it can't be done.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Iteration 6 one more zcopy write.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy for (i = 0; i < 7; i++) {
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * In iteration 5 (i == 5) use arcbufs
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * that don't match bigobj blksz to test
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * dmu_assign_arcbuf() when it can't directly
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * assign an arcbuf to a dbuf.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy for (j = 0; j < s; j++) {
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Get a tx for the mods to both packobj and bigobj.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_write(tx, packobj, packoff, packsize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_write(tx, bigobj, bigoff, bigsize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy for (j = 0; j < s; j++) {
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * 50% of the time don't read objects in the 1st iteration to
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * test dmu_assign_arcbuf() for the case when there're no
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * existing dbufs for the specified offsets.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy compare_and_update_pbbufs(s, packbuf, bigbuf, bigsize,
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * We've verified all the old bufwads, and made new ones.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Now write them out.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_write(os, packobj, packoff, packsize, packbuf, tx);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy (void) printf("writing offset %llx size %llx"
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy " txg %llx\n",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (off = bigoff, j = 0; j < s; j++, off += chunksize) {
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy bcopy((caddr_t)bigbuf + (off - bigoff) +
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy * Sanity check the stuff we just wrote.
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy void *packcheck = umem_alloc(packsize, UMEM_NOFAIL);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy void *bigcheck = umem_alloc(bigsize, UMEM_NOFAIL);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy ASSERT(bcmp(packbuf, packcheck, packsize) == 0);
2fdbea25c2ba89186b8a6b7c6840ebc9f4dff245Aleksandr Guzovskiy ASSERT(bcmp(bigbuf, bigcheck, bigsize) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick } else if (i == 3) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick umem_free(bigbuf_arcbufs, 2 * s * sizeof (arc_buf_t *));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dmu_write_parallel(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t offset = (1ULL << (ztest_random(20) + 43)) +
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Have multiple threads write to large offsets in an object
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * to verify that parallel writes to an object -- even to the
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * same blocks within the object -- doesn't cause any trouble.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], ID_PARALLEL, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t offset = (1ULL << (ztest_random(4) + SPA_MAXBLOCKSHIFT)) +
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (ztest_random(ZTEST_RANGE_LOCKS) << SPA_MAXBLOCKSHIFT);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_truncate(zd, od[0].od_object, offset, count * blocksize) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_prealloc(zd, od[0].od_object, offset, count * blocksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t randoff = offset + (ztest_random(count) * blocksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_write(zd, od[0].od_object, randoff, blocksize,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that zap_{create,destroy,add,remove,update} work as expected.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Generate a known hash collision, and verify that
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * we can lookup and remove both entries.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (i = 0; i < 2; i++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_add(os, object, hc[i], sizeof (uint64_t),
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (i = 0; i < 2; i++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(EEXIST, ==, zap_add(os, object, hc[i],
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zap_length(os, object, hc[i], &zl_intsize, &zl_ints));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (i = 0; i < 2; i++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_remove(os, object, hc[i], tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Generate a buch of random entries.
fa9e4066f08beec538e775443c5be79dd423fcabahrens ints = MAX(ZTEST_ZAP_MIN_INTS, object % ZTEST_ZAP_MAX_INTS);
e05725b117836db173257fae43fb0746eb857fb5bonwick (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
e05725b117836db173257fae43fb0746eb857fb5bonwick (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
e05725b117836db173257fae43fb0746eb857fb5bonwick * If these zap entries already exist, validate their contents.
e05725b117836db173257fae43fb0746eb857fb5bonwick error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
e05725b117836db173257fae43fb0746eb857fb5bonwick if (error == 0) {
e05725b117836db173257fae43fb0746eb857fb5bonwick VERIFY(zap_length(os, object, propname, &zl_intsize,
e05725b117836db173257fae43fb0746eb857fb5bonwick for (i = 0; i < ints; i++) {
e05725b117836db173257fae43fb0746eb857fb5bonwick * Atomically update two entries in our zap object.
e05725b117836db173257fae43fb0746eb857fb5bonwick * The first is named txg_%llu, and contains the txg
e05725b117836db173257fae43fb0746eb857fb5bonwick * in which the property was last updated. The second
e05725b117836db173257fae43fb0746eb857fb5bonwick * is named prop_%llu, and the nth element of its value
e05725b117836db173257fae43fb0746eb857fb5bonwick * should be txg + object + n.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
e05725b117836db173257fae43fb0746eb857fb5bonwick fatal(0, "zap future leak: old %llu new %llu", last_txg, txg);
e05725b117836db173257fae43fb0746eb857fb5bonwick for (i = 0; i < ints; i++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_update(os, object, txgname, sizeof (uint64_t),
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_update(os, object, propname, sizeof (uint64_t),
e05725b117836db173257fae43fb0746eb857fb5bonwick * Remove a random pair of entries.
e05725b117836db173257fae43fb0746eb857fb5bonwick (void) sprintf(propname, "prop_%llu", (u_longlong_t)prop);
e05725b117836db173257fae43fb0746eb857fb5bonwick (void) sprintf(txgname, "txg_%llu", (u_longlong_t)prop);
e05725b117836db173257fae43fb0746eb857fb5bonwick error = zap_length(os, object, txgname, &zl_intsize, &zl_ints);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_remove(os, object, txgname, tx));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_remove(os, object, propname, tx));
12a2833a0260ba374a4e6d8225376193e908784aSanjeev Bagewadi * Testcase to test the upgrading of a microzap to fatzap.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_ZAP_OTHER, 0, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), !ztest_random(2)) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Add entries to this ZAP and make sure it spills over
12a2833a0260ba374a4e6d8225376193e908784aSanjeev Bagewadi * and gets upgraded to a fatzap. Also, since we are adding
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * 2050 entries we should see ptrtbl growth and leaf-block split.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int i = 0; i < 2050; i++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(name, sizeof (name), "fzap-%llu-%llu",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = zap_add(os, object, name, sizeof (uint64_t), 1,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
fa9e4066f08beec538e775443c5be79dd423fcabahrens uint64_t txg, object, count, wsize, wc, zl_wsize, zl_wc;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], ID_PARALLEL, FTAG, micro, DMU_OT_ZAP_OTHER, 0, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
e05725b117836db173257fae43fb0746eb857fb5bonwick * Generate a random name of the form 'xxx.....' where each
e05725b117836db173257fae43fb0746eb857fb5bonwick * x is a random printable character and the dots are dots.
e05725b117836db173257fae43fb0746eb857fb5bonwick * There are 94 such characters, and the name length goes from
e05725b117836db173257fae43fb0746eb857fb5bonwick * 6 to 20, so there are 94^3 * 15 = 12,458,760 possible names.
e05725b117836db173257fae43fb0746eb857fb5bonwick for (i = 0; i < 3; i++)
e05725b117836db173257fae43fb0746eb857fb5bonwick * Select an operation: length, lookup, add, update, remove.
e05725b117836db173257fae43fb0746eb857fb5bonwick if (i >= 2) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick txg = ztest_tx_assign(tx, TXG_MIGHTWAIT, FTAG);
e05725b117836db173257fae43fb0746eb857fb5bonwick switch (i) {
e05725b117836db173257fae43fb0746eb857fb5bonwick error = zap_length(os, object, name, &zl_wsize, &zl_wc);
e05725b117836db173257fae43fb0746eb857fb5bonwick if (error == 0) {
e05725b117836db173257fae43fb0746eb857fb5bonwick error = zap_lookup(os, object, name, wsize, wc, data);
e05725b117836db173257fae43fb0746eb857fb5bonwick if (error == 0) {
e05725b117836db173257fae43fb0746eb857fb5bonwick error = zap_add(os, object, name, wsize, wc, data, tx);
e05725b117836db173257fae43fb0746eb857fb5bonwick VERIFY(zap_update(os, object, name, wsize, wc, data, tx) == 0);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * Commit callback data.
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia/* This is the actual commit callback function */
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correiaztest_commit_callback(void *arg, int error)
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia VERIFY3S(data->zcd_expected_err, ==, error);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia synced_txg = spa_last_synced_txg(data->zcd_spa);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia fatal(0, "commit callback of txg %" PRIu64 " called prematurely"
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia ", last synced txg = %" PRIu64 "\n", data->zcd_txg,
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * The private callback data should be destroyed here, but
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * since we are going to check the zcd_called field after
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * dmu_tx_abort(), we will destroy it there.
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia /* Was this callback added to the global callback list? */
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia /* Remove our callback from the list */
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia (void) mutex_lock(&zcl.zcl_callbacks_lock);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia (void) mutex_unlock(&zcl.zcl_callbacks_lock);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia umem_free(data, sizeof (ztest_cb_data_t));
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia/* Allocate and initialize callback data structure */
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correiaztest_create_cb_data(objset_t *os, uint64_t txg)
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia cb_data = umem_zalloc(sizeof (ztest_cb_data_t), UMEM_NOFAIL);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * If a number of txgs equal to this threshold have been created after a commit
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * callback has been registered but not called, then we assume there is an
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * implementation bug.
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia#define ZTEST_COMMIT_CALLBACK_THRESH (TXG_CONCURRENT_STATES + 2)
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * Commit callback test.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dmu_commit_callbacks(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, 0, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia cb_data[0] = ztest_create_cb_data(os, 0);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[0]);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_write(tx, od[0].od_object, 0, sizeof (uint64_t));
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia /* Every once in a while, abort the transaction on purpose */
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia cb_data[1] = ztest_create_cb_data(os, txg);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[1]);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * It's not a strict requirement to call the registered
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * callbacks from inside dmu_tx_abort(), but that's what
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * it's supposed to happen in the current implementation
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * so we will check for that.
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia for (i = 0; i < 2; i++) {
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia cb_data[i]->zcd_expected_err = ECANCELED;
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia for (i = 0; i < 2; i++) {
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia umem_free(cb_data[i], sizeof (ztest_cb_data_t));
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia cb_data[2] = ztest_create_cb_data(os, txg);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia dmu_tx_callback_register(tx, ztest_commit_callback, cb_data[2]);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * Read existing data to make sure there isn't a future leak.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(0 == dmu_read(os, od[0].od_object, 0, sizeof (uint64_t),
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia fatal(0, "future leak: got %" PRIu64 ", open txg is %" PRIu64,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_write(os, od[0].od_object, 0, sizeof (uint64_t), &txg, tx);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia (void) mutex_lock(&zcl.zcl_callbacks_lock);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * Since commit callbacks don't have any ordering requirement and since
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * it is theoretically possible for a commit callback to be called
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * after an arbitrary amount of time has elapsed since its txg has been
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * synced, it is difficult to reliably determine whether a commit
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * callback hasn't been called due to high load or due to a flawed
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * implementation.
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * In practice, we will assume that if after a certain number of txgs a
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * commit callback hasn't been called, then most likely there's an
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * implementation bug..
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia tmp_cb->zcd_txg > txg - ZTEST_COMMIT_CALLBACK_THRESH) {
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia fatal(0, "Commit callback threshold exceeded, oldest txg: %"
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia PRIu64 ", open txg: %" PRIu64 "\n", tmp_cb->zcd_txg, txg);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * Let's find the place to insert our callbacks.
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * Even though the list is ordered by txg, it is possible for the
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * insertion point to not be the end because our txg may already be
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * quiescing at this point and other callbacks in the open txg
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia * (from other objsets) may have sneaked in.
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia while (tmp_cb != NULL && tmp_cb->zcd_txg > txg)
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia tmp_cb = list_prev(&zcl.zcl_callbacks, tmp_cb);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia /* Add the 3 callbacks to the list */
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia for (i = 0; i < 3; i++) {
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia list_insert_head(&zcl.zcl_callbacks, cb_data[i]);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia list_insert_after(&zcl.zcl_callbacks, tmp_cb,
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia (void) mutex_unlock(&zcl.zcl_callbacks_lock);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int p = 0; p < sizeof (proplist) / sizeof (proplist[0]); p++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) ztest_dsl_prop_set_uint64(zd->zd_name, proplist[p],
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_random_dsl_prop(proplist[p]), (int)ztest_random(2));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_spa_prop_get_set(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) ztest_spa_prop_set_uint64(zs, ZPOOL_PROP_DEDUPDITTO,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ZIO_DEDUPDITTO_MIN + ztest_random(ZIO_DEDUPDITTO_MIN));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(spa_prop_get(zs->zs_spa, &props), ==, 0);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby * Test snapshot hold/release and deferred destroy.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dmu_snapshot_hold(ztest_ds_t *zd, uint64_t id)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(snapname, 100, "sh1_%llu", id);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby (void) snprintf(fullname, 100, "%s@%s", osname, snapname);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(clonename, 100, "%s/ch1_%llu", osname, id);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby * Clean up from any previous run.
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby (void) dsl_dataset_user_release(osname, snapname, tag, B_FALSE);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby * Create snapshot, clone it, mark snap for deferred destroy,
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby * destroy clone, verify snap was also destroyed.
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby error = dmu_objset_snapshot(osname, snapname, NULL, FALSE);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby error = dmu_objset_hold(fullname, FTAG, &origin);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dmu_objset_hold(%s) = %d", fullname, error);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby error = dmu_objset_clone(clonename, dmu_objset_ds(origin), 0);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dmu_objset_clone(%s) = %d", clonename, error);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dmu_objset_destroy(%s) = %d", clonename, error);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby error = dmu_objset_hold(fullname, FTAG, &origin);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dmu_objset_hold(%s) = %d", fullname, error);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby * Create snapshot, add temporary hold, verify that we can't
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby * destroy a held snapshot, mark for deferred destroy,
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby * release hold, verify snapshot was destroyed.
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby error = dmu_objset_snapshot(osname, snapname, NULL, FALSE);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dmu_objset_snapshot(%s) = %d", fullname, error);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby error = dsl_dataset_user_hold(osname, snapname, tag, B_FALSE, B_TRUE);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dsl_dataset_user_hold(%s)", fullname, tag);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dmu_objset_destroy(%s, B_FALSE) = %d",
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby error = dsl_dataset_user_release(osname, snapname, tag, B_FALSE);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby fatal(0, "dsl_dataset_user_release(%s)", fullname, tag);
5c987a37e6561d090231fb3c10ba9f6ea995f34dChris Kirby VERIFY(dmu_objset_hold(fullname, FTAG, &origin) == ENOENT);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Inject random faults into the on-disk data.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
fa9e4066f08beec538e775443c5be79dd423fcabahrens int bshift = SPA_MAXBLOCKSHIFT + 2; /* don't scrog all labels */
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante leaves = MAX(zs->zs_mirrors, 1) * zopt_raidz;
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick spa_config_enter(spa, SCL_STATE, FTAG, RW_READER);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Inject errors on a normal data device or slog device.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Generate paths to the first leaf in this top-level vdev,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * and to the random leaf we selected. We'll induce transient
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * write failures and random online/offline activity on leaf 0,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * and we'll write random garbage to the randomly chosen leaf.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (void) snprintf(path0, sizeof (path0), ztest_dev_template,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante zopt_dir, zopt_pool, top * leaves + zs->zs_splits);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick (void) snprintf(pathrand, sizeof (pathrand), ztest_dev_template,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick vd0 = vdev_lookup_by_path(spa->spa_root_vdev, path0);
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Make vd0 explicitly claim to be unreadable,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * or unwriteable, or reach behind its back
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * and close the underlying fd. We can do this if
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * maxfaults == 0 because we'll fail and reexecute,
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * and we can do it if maxfaults >= 2 because we'll
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * have enough redundancy. If maxfaults == 1, the
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * combination of this with injection of random data
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * corruption below exceeds the pool's fault tolerance.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Inject errors on an l2cache device.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick vd0 = sav->sav_vdevs[ztest_random(sav->sav_count)];
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick maxfaults = INT_MAX; /* no limit on cache devices */
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * If we can tolerate two or more faults, or we're dealing
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * with a slog, randomly online/offline vd0.
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson if ((maxfaults >= 2 || islog) && guid0 != 0) {
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * We have to grab the zs_name_lock as writer to
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * prevent a race between offlining a slog and
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * destroying a dataset. Offlining the slog will
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * grab a reference on the dataset which may cause
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * dmu_objset_destroy() to fail with EBUSY thus
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson * leaving the dataset in an inconsistent state.
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson (void) rw_wrlock(&ztest_shared->zs_name_lock);
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick VERIFY(vdev_offline(spa, guid0, flags) != EBUSY);
8f18d1fadf6a0c20fac9ff7259a5368faa3c3bfbGeorge Wilson (void) rw_unlock(&ztest_shared->zs_name_lock);
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * We have at least single-fault tolerance, so inject data corruption.
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (fd == -1) /* we hit a gap in the device namespace */
fa9e4066f08beec538e775443c5be79dd423fcabahrens while (--iters != 0) {
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens if (pwrite(fd, &bad, sizeof (bad), offset) != sizeof (bad))
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(mutex_unlock(&zs->zs_vdev_lock) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante " offset 0x%llx\n", pathrand, (u_longlong_t)offset);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify that DDT repair works as expected.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick uint64_t object, blocksize, txg, pattern, psize;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick enum zio_checksum checksum = spa_dedup_checksum(spa);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick blocksize = MIN(blocksize, 2048); /* because we write so many */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_od_init(&od[0], id, FTAG, 0, DMU_OT_UINT64_OTHER, blocksize, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_object_init(zd, od, sizeof (od), B_FALSE) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Take the name lock as writer to prevent anyone else from changing
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * the pool and dataset properies we need to maintain during this test.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_DEDUP, checksum,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_COPIES, 1,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick pattern = spa_guid(spa) ^ dmu_objset_fsid_guid(os);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_tx_hold_write(tx, object, 0, copies * blocksize);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Write all the copies of our block.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int i = 0; i < copies; i++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(dmu_buf_hold(os, object, offset, FTAG, &db) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ASSERT(ztest_pattern_match(db->db_data, db->db_size, pattern) ||
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_pattern_match(db->db_data, db->db_size, 0ULL));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_pattern_set(db->db_data, db->db_size, pattern);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Find out what block we got.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(dmu_buf_hold(os, object, 0, FTAG, &db) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Damage the block. Dedup-ditto will save us when we read it later.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) zio_wait(zio_rewrite(NULL, spa, 0, &blk,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick buf, psize, NULL, NULL, ZIO_PRIORITY_SYNC_WRITE,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ZIO_FLAG_CANFAIL | ZIO_FLAG_INDUCE_DAMAGE, NULL));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Scrub the pool.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) poll(NULL, 0, 100); /* wait a moment, then force a restart */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Rename the pool to a different name and then rename it back.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick/* ARGSUSED */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Do the rename
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Try to open it under the old name, which shouldn't exist
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Open it under the new name and make sure it's still the same spa_t.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Rename it back to the original
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Make sure it can still be opened
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify pool integrity by running zdb.
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* zdb lives in /usr/sbin, while ztest lives in /usr/bin */
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* LINTED */
6365109ded948bd19a48c186a43ed08bd46a26adVictor Latushkin "/usr/sbin%.*s/zdb -bcc%s%s -U /tmp/zpool.cache %s",
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) printf("Executing %s\n", strstr(zdb, "zdb "));
fa9e4066f08beec538e775443c5be79dd423fcabahrens fatal(0, "'%s' exit code %d", zdb, WEXITSTATUS(status));
fa9e4066f08beec538e775443c5be79dd423fcabahrens fatal(0, "'%s' died with signal %d", zdb, WTERMSIG(status));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Clean up from previous runs.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Get the pool's configuration and guid.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_open(oldname, &spa, FTAG));
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick * Kick off a scrub to tickle scrub/export races.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Export it.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_export(oldname, &config, B_FALSE, B_FALSE));
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick * Try to import it.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Import it under the new name.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_import(newname, config, NULL));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Try to import it again -- should fail with EEXIST.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(EEXIST, ==, spa_import(newname, config, NULL));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Try to import it under a different name -- should fail with EEXIST.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(EEXIST, ==, spa_import(oldname, config, NULL));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that the pool is no longer visible under the old name.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(ENOENT, ==, spa_open(oldname, &spa, FTAG));
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that we can open and close the pool using the new name.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_open(newname, &spa, FTAG));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) printf("resuming from suspended state\n");
0a4e9518a44f226be6d39383330b5b1792d2f184gwstatic void *
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickstatic void *
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick delta = (zs->zs_thread_stop - zs->zs_thread_start) / NANOSEC + grace;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick fatal(0, "failed to complete within %d seconds of deadline", grace);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_ds_t *zd = &zs->zs_zd[id % zopt_datasets];
fa9e4066f08beec538e775443c5be79dd423fcabahrensstatic void *
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick while ((now = gethrtime()) < zs->zs_thread_stop) {
fa9e4066f08beec538e775443c5be79dd423fcabahrens * See if it's time to force a crash.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * If we're getting ENOSPC with some regularity, stop.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Pick a random function to execute.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick atomic_cas_64(&zi->zi_call_next, call_next, call_next +
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick ztest_random(2 * zi->zi_interval[0] + 1)) == call_next)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dataset_name(char *dsname, char *pool, int d)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(dsname, MAXNAMELEN, "%s/ds_%d", pool, d);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwickztest_dataset_destroy(ztest_shared_t *zs, int d)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) printf("Destroying %s to free up space\n", name);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Cleanup any non-standard clones and snapshots. In general,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * ztest thread t operates on dataset (t % zopt_datasets),
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * so there may be more than one thing to clean up.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int t = d; t < zopt_threads; t += zopt_datasets)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) dmu_objset_find(name, ztest_objset_destroy_cb, NULL,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * ZTEST_DIROBJ is the object directory for the entire dataset.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Therefore, the number of objects in use should equal the
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * number of ZTEST_DIROBJ entries, +1 for ZTEST_DIROBJ itself.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * If not, we have an object leak.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Note that we can only check this in ztest_dataset_open(),
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * when the open-context and syncing-context values agree.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * That's because zap_count() returns the open-context value,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * while dmu_objset_space() returns the rootbp fill count.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, zap_count(zd->zd_os, ZTEST_DIROBJ, &dirobjs));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_objset_space(zd->zd_os, &scratch, &scratch, &usedobjs, &scratch);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick error = dmu_objset_create(name, DMU_OST_OTHER, 0,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(dmu_objset_hold(name, zd, &os), ==, 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zilog->zl_header->zh_claim_lr_seq < committed_seq)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick fatal(0, "missing log records: claimed %llu < committed %llu",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zilog->zl_header->zh_claim_lr_seq, committed_seq);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) printf("%s replay %llu blocks, %llu records, seq %llu\n",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick fatal(0, "missing log records: replayed %llu < committed %llu",
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Kick off threads to run tests on all datasets in parallel.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Initialize parent/child shared state.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(_mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zs->zs_thread_stop = zs->zs_thread_start + zopt_passtime * NANOSEC;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zs->zs_thread_stop = MIN(zs->zs_thread_stop, zs->zs_proc_stop);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zs->zs_thread_kill -= ztest_random(zopt_passtime * NANOSEC);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) _mutex_init(&zcl.zcl_callbacks_lock, USYNC_THREAD, NULL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick list_create(&zcl.zcl_callbacks, sizeof (ztest_cb_data_t),
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Open our pool.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(spa_open(zs->zs_pool, &spa, FTAG) == 0);
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick * We don't expect the pool to suspend unless maxfaults == 0,
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick * in which case ztest_fault_inject() temporarily takes away
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick * the only valid replica.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick * Create a thread to periodically resume suspended I/O.
8ad4d6dd86f5bc65fb3afa566c8133f3bac21648Jeff Bonwick VERIFY(thr_create(0, 0, ztest_resume_thread, spa, THR_BOUND,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Create a deadman thread to abort() if we hang.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(thr_create(0, 0, ztest_deadman_thread, zs, THR_BOUND,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Verify that we can safely inquire about about any object,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * whether it's allocated or not. To make it interesting,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * we probe a 5-wide window around each power of two.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * This hits all edge cases, including zero and the max.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int t = 0; t < 64; t++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * If we got any ENOSPC errors on the previous run, destroy something.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick tid = umem_zalloc(zopt_threads * sizeof (thread_t), UMEM_NOFAIL);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Kick off all the tests that run in parallel.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int t = 0; t < zopt_threads; t++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (t < zopt_datasets && ztest_dataset_open(zs, t) != 0)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(thr_create(0, 0, ztest_thread, (void *)(uintptr_t)t,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Wait for all of the tests to complete. We go in reverse order
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * so we don't close datasets while threads are still using them.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zs->zs_alloc = metaslab_class_get_alloc(spa_normal_class(spa));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zs->zs_space = metaslab_class_get_space(spa_normal_class(spa));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick umem_free(tid, zopt_threads * sizeof (thread_t));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick /* Kill the resume thread */
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Right before closing the pool, kick off a bunch of async I/O;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * spa_close() should wait for it to complete.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (uint64_t object = 1; object < 50; object++)
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick dmu_prefetch(spa->spa_meta_objset, object, 0, 1ULL << 20);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify that we can loop over all pools.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (spa = spa_next(NULL); spa != NULL; spa = spa_next(spa))
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) printf("spa_next: found %s\n", spa_name(spa));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Verify that we can export the pool and reimport it under a
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * different name.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(name, MAXNAMELEN, "%s_import", zs->zs_pool);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Force the first log block to be transactionally allocated.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * We have to do this before we freeze the pool -- otherwise
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * the log chain won't be anchored.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick while (BP_IS_HOLE(&zd->zd_zilog->zl_header->zh_log)) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Freeze the pool. This stops spa_sync() from doing anything,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * so that the only way to record changes from now on is the ZIL.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Run tests that generate log records but don't alter the pool config
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * or depend on DSL sync tasks (snapshots, objset create/destroy, etc).
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * We do a txg_wait_synced() after each iteration to force the txg
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * to increase well beyond the last synced value in the uberblock.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * The ZIL should be OK with that.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Commit all of the changes we just generated.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Close our dataset and close the pool.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Open and close the pool and dataset to induce log replay.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia (void) _mutex_destroy(&zcl.zcl_callbacks_lock);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia (void) rwlock_destroy(&zs->zs_name_lock);
d20e665c84abf083a9e8b62cca93383ecb55afdfRicardo M. Correia (void) _mutex_destroy(&zs->zs_vdev_lock);
fa9e4066f08beec538e775443c5be79dd423fcabahrens s -= m * 60;
fa9e4066f08beec538e775443c5be79dd423fcabahrens m -= h * 60;
fa9e4066f08beec538e775443c5be79dd423fcabahrens h -= d * 24;
fa9e4066f08beec538e775443c5be79dd423fcabahrens "%llud%02lluh%02llum%02llus", d, h, m, s);
fa9e4066f08beec538e775443c5be79dd423fcabahrens else if (h)
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) sprintf(timebuf, "%lluh%02llum%02llus", h, m, s);
fa9e4066f08beec538e775443c5be79dd423fcabahrens else if (m)
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_alloc(&props, NV_UNIQUE_NAME, 0) == 0);
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY(nvlist_add_uint64(props, "autoreplace", 1) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Create a storage pool with the given name and initial vdev size.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * Then test spa_freeze() functionality.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(_mutex_init(&zs->zs_vdev_lock, USYNC_THREAD, NULL) == 0);
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY(rwlock_init(&zs->zs_name_lock, USYNC_THREAD, NULL) == 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Create the storage pool.
e14bb3258d05c1b1077e2db7cf77088924e56919Jeff Bonwick nvroot = make_vdev_root(NULL, NULL, zopt_vdev_size, 0,
1195e687f1c03c8d57417b5999578922e20a3554Mark J Musante VERIFY3U(0, ==, spa_create(zs->zs_pool, nvroot, props, NULL, NULL));
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick VERIFY3U(0, ==, spa_open(zs->zs_pool, &spa, FTAG));
d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson metaslab_sz = 1ULL << spa->spa_root_vdev->vdev_child[0]->vdev_ms_shift;
fa9e4066f08beec538e775443c5be79dd423fcabahrens /* Override location of zpool.cache */
ea8dc4b6d2251b437950c0056bc626b311c73c27eschrock * Blow away any existing copy of zpool.cache
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick shared_size = sizeof (*zs) + zopt_datasets * sizeof (ztest_ds_t);
fa9e4066f08beec538e775443c5be79dd423fcabahrens PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANON, -1, 0);
fa9e4066f08beec538e775443c5be79dd423fcabahrens " %llu seconds...\n",
ecc2d604e885a75cc75e647b5641af99d5a6f4a6bonwick (u_longlong_t)zopt_vdevs, zopt_datasets, zopt_threads,
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Create and initialize our storage pool.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick zs->zs_proc_stop = zs->zs_proc_start + zopt_time * NANOSEC;
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int f = 0; f < ZTEST_FUNCS; f++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick if (zs->zs_proc_start + zi->zi_interval[0] > zs->zs_proc_stop)
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Run the tests in a loop. These tests include fault injection
fa9e4066f08beec538e775443c5be79dd423fcabahrens * to verify that self-healing data works, and forced crashes
fa9e4066f08beec538e775443c5be79dd423fcabahrens * to verify that we never lose on-disk consistency.
fa9e4066f08beec538e775443c5be79dd423fcabahrens * Initialize the workload counters for each function.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int f = 0; f < ZTEST_FUNCS; f++) {
d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson /* Set the allocation switch size */
d6e555bdd793b8bc8fe57d5f12c3d69c813d0661George Wilson metaslab_df_alloc_threshold = ztest_random(metaslab_sz / 4) + 1;
fa9e4066f08beec538e775443c5be79dd423fcabahrens "child exited with code %d\n",
fa9e4066f08beec538e775443c5be79dd423fcabahrens "child died with signal %d\n",
5ad820458efd0fdb914baff9c1447c22b819fa23nd "to child\n");
fa9e4066f08beec538e775443c5be79dd423fcabahrens "%4.1f%% of %5s used, %3.0f%% done, %8s to go\n",
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick for (int f = 0; f < ZTEST_FUNCS; f++) {
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * It's possible that we killed a child during a rename test,
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * in which case we'll have a 'ztest_tmp' pool lying around
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick * instead of 'ztest'. Do a blind rename in case this happened.
b24ab6762772a3f6a89393947930c7fa61306783Jeff Bonwick (void) snprintf(tmpname, sizeof (tmpname), "%s_tmp",
fa9e4066f08beec538e775443c5be79dd423fcabahrens (void) printf("%d killed, %d completed, %.0f%% kill rate\n",
fa9e4066f08beec538e775443c5be79dd423fcabahrens kills, iters - kills, (100.0 * kills) / MAX(1, iters));
fa9e4066f08beec538e775443c5be79dd423fcabahrens return (0);