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https://git.proxmox.com/git/mirror_zfs.git
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Remove rwlock wrappers
The only remaining consumer of the rwlock compatibility wrappers
is ztest. Remove the wrappers and convert the few remaining
calls to the underlying pthread functions.
rwlock_init() -> pthread_rwlock_init()
rwlock_destroy() -> pthread_rwlock_destroy()
rw_rdlock() -> pthread_rwlock_rdlock()
rw_wrlock() -> pthread_rwlock_wrlock()
rw_unlock() -> pthread_rwlock_unlock()
Note pthread_rwlock_init() defaults to PTHREAD_PROCESS_PRIVATE
which is equivilant to the USYNC_THREAD behavior. There is no
functional change.
Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7591
This commit is contained in:
Brian Behlendorf
GitHub
parent
e48afbc4eb
commit
2d9142c9d4
@ -282,7 +282,7 @@ typedef struct ztest_od {
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typedef struct ztest_ds {
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ztest_shared_ds_t *zd_shared;
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objset_t *zd_os;
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rwlock_t zd_zilog_lock;
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pthread_rwlock_t zd_zilog_lock;
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zilog_t *zd_zilog;
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ztest_od_t *zd_od; /* debugging aid */
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char zd_name[ZFS_MAX_DATASET_NAME_LEN];
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@ -453,7 +453,7 @@ static boolean_t ztest_device_removal_active = B_FALSE;
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* this lock as writer. Grabbing the lock as reader will ensure that the
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* namespace does not change while the lock is held.
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*/
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static rwlock_t ztest_name_lock;
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static pthread_rwlock_t ztest_name_lock;
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static boolean_t ztest_dump_core = B_TRUE;
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static boolean_t ztest_dump_debug_buffer = B_FALSE;
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@ -1459,7 +1459,7 @@ ztest_zd_init(ztest_ds_t *zd, ztest_shared_ds_t *szd, objset_t *os)
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if (zd->zd_shared != NULL)
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zd->zd_shared->zd_seq = 0;
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VERIFY(rwlock_init(&zd->zd_zilog_lock, USYNC_THREAD, NULL) == 0);
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VERIFY0(pthread_rwlock_init(&zd->zd_zilog_lock, NULL));
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mutex_init(&zd->zd_dirobj_lock, NULL, MUTEX_DEFAULT, NULL);
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for (l = 0; l < ZTEST_OBJECT_LOCKS; l++)
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@ -1475,7 +1475,7 @@ ztest_zd_fini(ztest_ds_t *zd)
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int l;
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mutex_destroy(&zd->zd_dirobj_lock);
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(void) rwlock_destroy(&zd->zd_zilog_lock);
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(void) pthread_rwlock_destroy(&zd->zd_zilog_lock);
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for (l = 0; l < ZTEST_OBJECT_LOCKS; l++)
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ztest_rll_destroy(&zd->zd_object_lock[l]);
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@ -2536,7 +2536,7 @@ ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
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if (ztest_random(2) == 0)
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io_type = ZTEST_IO_WRITE_TAG;
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(void) rw_rdlock(&zd->zd_zilog_lock);
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(void) pthread_rwlock_rdlock(&zd->zd_zilog_lock);
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switch (io_type) {
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@ -2576,7 +2576,7 @@ ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
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break;
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case ZTEST_IO_REWRITE:
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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err = ztest_dsl_prop_set_uint64(zd->zd_name,
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ZFS_PROP_CHECKSUM, spa_dedup_checksum(ztest_spa),
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B_FALSE);
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@ -2586,7 +2586,7 @@ ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
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ztest_random_dsl_prop(ZFS_PROP_COMPRESSION),
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B_FALSE);
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VERIFY(err == 0 || err == ENOSPC);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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VERIFY0(dmu_read(zd->zd_os, object, offset, blocksize, data,
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DMU_READ_NO_PREFETCH));
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@ -2595,7 +2595,7 @@ ztest_io(ztest_ds_t *zd, uint64_t object, uint64_t offset)
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break;
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}
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(void) rw_unlock(&zd->zd_zilog_lock);
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(void) pthread_rwlock_unlock(&zd->zd_zilog_lock);
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umem_free(data, blocksize);
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}
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@ -2653,7 +2653,7 @@ ztest_zil_commit(ztest_ds_t *zd, uint64_t id)
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{
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zilog_t *zilog = zd->zd_zilog;
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(void) rw_rdlock(&zd->zd_zilog_lock);
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(void) pthread_rwlock_rdlock(&zd->zd_zilog_lock);
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zil_commit(zilog, ztest_random(ZTEST_OBJECTS));
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@ -2668,7 +2668,7 @@ ztest_zil_commit(ztest_ds_t *zd, uint64_t id)
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zd->zd_shared->zd_seq = zilog->zl_commit_lr_seq;
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mutex_exit(&zilog->zl_lock);
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(void) rw_unlock(&zd->zd_zilog_lock);
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(void) pthread_rwlock_unlock(&zd->zd_zilog_lock);
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}
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/*
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@ -2688,7 +2688,7 @@ ztest_zil_remount(ztest_ds_t *zd, uint64_t id)
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* zd_zilog_lock to block any I/O.
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*/
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mutex_enter(&zd->zd_dirobj_lock);
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(void) rw_wrlock(&zd->zd_zilog_lock);
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(void) pthread_rwlock_wrlock(&zd->zd_zilog_lock);
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/* zfsvfs_teardown() */
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zil_close(zd->zd_zilog);
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@ -2697,7 +2697,7 @@ ztest_zil_remount(ztest_ds_t *zd, uint64_t id)
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VERIFY(zil_open(os, ztest_get_data) == zd->zd_zilog);
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zil_replay(os, zd, ztest_replay_vector);
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(void) rw_unlock(&zd->zd_zilog_lock);
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(void) pthread_rwlock_unlock(&zd->zd_zilog_lock);
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mutex_exit(&zd->zd_dirobj_lock);
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}
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@ -2736,7 +2736,7 @@ ztest_spa_create_destroy(ztest_ds_t *zd, uint64_t id)
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* Attempt to create an existing pool. It shouldn't matter
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* what's in the nvroot; we should fail with EEXIST.
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*/
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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nvroot = make_vdev_root("/dev/bogus", NULL, NULL, 0, 0, 0, 0, 0, 1);
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VERIFY3U(EEXIST, ==,
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spa_create(zo->zo_pool, nvroot, NULL, NULL, NULL));
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@ -2745,7 +2745,7 @@ ztest_spa_create_destroy(ztest_ds_t *zd, uint64_t id)
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VERIFY3U(EBUSY, ==, spa_destroy(zo->zo_pool));
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spa_close(spa, FTAG);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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}
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/*
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@ -2944,9 +2944,9 @@ ztest_vdev_add_remove(ztest_ds_t *zd, uint64_t id)
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* dsl_destroy_head() to fail with EBUSY thus
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* leaving the dataset in an inconsistent state.
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*/
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rw_wrlock(&ztest_name_lock);
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pthread_rwlock_wrlock(&ztest_name_lock);
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error = spa_vdev_remove(spa, guid, B_FALSE);
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rw_unlock(&ztest_name_lock);
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pthread_rwlock_unlock(&ztest_name_lock);
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if (error && error != EEXIST)
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fatal(0, "spa_vdev_remove() = %d", error);
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@ -3143,9 +3143,9 @@ ztest_split_pool(ztest_ds_t *zd, uint64_t id)
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spa_config_exit(spa, SCL_VDEV, FTAG);
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(void) rw_wrlock(&ztest_name_lock);
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(void) pthread_rwlock_wrlock(&ztest_name_lock);
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error = spa_vdev_split_mirror(spa, "splitp", config, NULL, B_FALSE);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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nvlist_free(config);
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@ -3842,7 +3842,7 @@ ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
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zdtmp = umem_alloc(sizeof (ztest_ds_t), UMEM_NOFAIL);
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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(void) snprintf(name, sizeof (name), "%s/temp_%llu",
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ztest_opts.zo_pool, (u_longlong_t)id);
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@ -3932,7 +3932,7 @@ ztest_dmu_objset_create_destroy(ztest_ds_t *zd, uint64_t id)
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dmu_objset_disown(os, B_TRUE, FTAG);
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ztest_zd_fini(zdtmp);
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out:
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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umem_free(zdtmp, sizeof (ztest_ds_t));
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}
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@ -3943,10 +3943,10 @@ out:
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void
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ztest_dmu_snapshot_create_destroy(ztest_ds_t *zd, uint64_t id)
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{
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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(void) ztest_snapshot_destroy(zd->zd_name, id);
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(void) ztest_snapshot_create(zd->zd_name, id);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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}
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/*
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@ -4023,7 +4023,7 @@ ztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id)
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clone2name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
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snap3name = umem_alloc(ZFS_MAX_DATASET_NAME_LEN, UMEM_NOFAIL);
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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ztest_dsl_dataset_cleanup(osname, id);
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@ -4101,7 +4101,7 @@ ztest_dsl_dataset_promote_busy(ztest_ds_t *zd, uint64_t id)
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out:
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ztest_dsl_dataset_cleanup(osname, id);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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umem_free(snap1name, ZFS_MAX_DATASET_NAME_LEN);
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umem_free(clone1name, ZFS_MAX_DATASET_NAME_LEN);
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@ -5337,7 +5337,7 @@ ztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id)
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};
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int p;
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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for (p = 0; p < sizeof (proplist) / sizeof (proplist[0]); p++)
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(void) ztest_dsl_prop_set_uint64(zd->zd_name, proplist[p],
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@ -5346,21 +5346,21 @@ ztest_dsl_prop_get_set(ztest_ds_t *zd, uint64_t id)
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VERIFY0(ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_RECORDSIZE,
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ztest_random_blocksize(), (int)ztest_random(2)));
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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}
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/* ARGSUSED */
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void
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ztest_remap_blocks(ztest_ds_t *zd, uint64_t id)
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{
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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int error = dmu_objset_remap_indirects(zd->zd_name);
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if (error == ENOSPC)
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error = 0;
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ASSERT0(error);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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}
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/* ARGSUSED */
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@ -5369,7 +5369,7 @@ ztest_spa_prop_get_set(ztest_ds_t *zd, uint64_t id)
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{
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nvlist_t *props = NULL;
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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(void) ztest_spa_prop_set_uint64(ZPOOL_PROP_DEDUPDITTO,
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ZIO_DEDUPDITTO_MIN + ztest_random(ZIO_DEDUPDITTO_MIN));
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@ -5381,7 +5381,7 @@ ztest_spa_prop_get_set(ztest_ds_t *zd, uint64_t id)
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nvlist_free(props);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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}
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static int
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@ -5416,7 +5416,7 @@ ztest_dmu_snapshot_hold(ztest_ds_t *zd, uint64_t id)
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char osname[ZFS_MAX_DATASET_NAME_LEN];
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nvlist_t *holds;
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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dmu_objset_name(os, osname);
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@ -5522,7 +5522,7 @@ ztest_dmu_snapshot_hold(ztest_ds_t *zd, uint64_t id)
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VERIFY3U(dmu_objset_hold(fullname, FTAG, &origin), ==, ENOENT);
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out:
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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}
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/*
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@ -5579,7 +5579,7 @@ ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
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* they are in progress (i.e. spa_change_guid). Those
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* operations will have grabbed the name lock as writer.
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*/
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(void) rw_rdlock(&ztest_name_lock);
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(void) pthread_rwlock_rdlock(&ztest_name_lock);
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/*
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* We need SCL_STATE here because we're going to look at vd0->vdev_tsd.
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@ -5651,7 +5651,7 @@ ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
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if (sav->sav_count == 0) {
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spa_config_exit(spa, SCL_STATE, FTAG);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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goto out;
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}
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vd0 = sav->sav_vdevs[ztest_random(sav->sav_count)];
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@ -5665,7 +5665,7 @@ ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
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}
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spa_config_exit(spa, SCL_STATE, FTAG);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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/*
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* If we can tolerate two or more faults, or we're dealing
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@ -5685,12 +5685,12 @@ ztest_fault_inject(ztest_ds_t *zd, uint64_t id)
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* leaving the dataset in an inconsistent state.
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*/
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if (islog)
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(void) rw_wrlock(&ztest_name_lock);
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(void) pthread_rwlock_wrlock(&ztest_name_lock);
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VERIFY(vdev_offline(spa, guid0, flags) != EBUSY);
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if (islog)
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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} else {
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/*
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* Ideally we would like to be able to randomly
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@ -5833,13 +5833,13 @@ ztest_ddt_repair(ztest_ds_t *zd, uint64_t id)
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* Take the name lock as writer to prevent anyone else from changing
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* the pool and dataset properies we need to maintain during this test.
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*/
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(void) rw_wrlock(&ztest_name_lock);
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(void) pthread_rwlock_wrlock(&ztest_name_lock);
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if (ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_DEDUP, checksum,
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B_FALSE) != 0 ||
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ztest_dsl_prop_set_uint64(zd->zd_name, ZFS_PROP_COPIES, 1,
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B_FALSE) != 0) {
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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umem_free(od, sizeof (ztest_od_t));
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return;
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}
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@ -5859,7 +5859,7 @@ ztest_ddt_repair(ztest_ds_t *zd, uint64_t id)
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dmu_tx_hold_write(tx, object, 0, copies * blocksize);
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txg = ztest_tx_assign(tx, TXG_WAIT, FTAG);
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if (txg == 0) {
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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umem_free(od, sizeof (ztest_od_t));
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return;
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}
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@ -5908,7 +5908,7 @@ ztest_ddt_repair(ztest_ds_t *zd, uint64_t id)
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abd_free(abd);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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umem_free(od, sizeof (ztest_od_t));
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}
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@ -5949,9 +5949,9 @@ ztest_reguid(ztest_ds_t *zd, uint64_t id)
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orig = spa_guid(spa);
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load = spa_load_guid(spa);
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(void) rw_wrlock(&ztest_name_lock);
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(void) pthread_rwlock_wrlock(&ztest_name_lock);
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error = spa_change_guid(spa);
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(void) rw_unlock(&ztest_name_lock);
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(void) pthread_rwlock_unlock(&ztest_name_lock);
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if (error != 0)
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return;
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@ -5978,7 +5978,7 @@ ztest_spa_rename(ztest_ds_t *zd, uint64_t id)
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if (ztest_opts.zo_mmp_test)
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return;
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||||
|
||||
(void) rw_wrlock(&ztest_name_lock);
|
||||
(void) pthread_rwlock_wrlock(&ztest_name_lock);
|
||||
|
||||
oldname = ztest_opts.zo_pool;
|
||||
newname = umem_alloc(strlen(oldname) + 5, UMEM_NOFAIL);
|
||||
@ -6018,7 +6018,7 @@ ztest_spa_rename(ztest_ds_t *zd, uint64_t id)
|
||||
|
||||
umem_free(newname, strlen(newname) + 1);
|
||||
|
||||
(void) rw_unlock(&ztest_name_lock);
|
||||
(void) pthread_rwlock_unlock(&ztest_name_lock);
|
||||
}
|
||||
|
||||
void
|
||||
@ -6560,11 +6560,11 @@ ztest_dataset_open(int d)
|
||||
|
||||
ztest_dataset_name(name, ztest_opts.zo_pool, d);
|
||||
|
||||
(void) rw_rdlock(&ztest_name_lock);
|
||||
(void) pthread_rwlock_rdlock(&ztest_name_lock);
|
||||
|
||||
error = ztest_dataset_create(name);
|
||||
if (error == ENOSPC) {
|
||||
(void) rw_unlock(&ztest_name_lock);
|
||||
(void) pthread_rwlock_unlock(&ztest_name_lock);
|
||||
ztest_record_enospc(FTAG);
|
||||
return (error);
|
||||
}
|
||||
@ -6572,7 +6572,7 @@ ztest_dataset_open(int d)
|
||||
|
||||
VERIFY0(ztest_dmu_objset_own(name, DMU_OST_OTHER, B_FALSE,
|
||||
B_TRUE, zd, &os));
|
||||
(void) rw_unlock(&ztest_name_lock);
|
||||
(void) pthread_rwlock_unlock(&ztest_name_lock);
|
||||
|
||||
ztest_zd_init(zd, ZTEST_GET_SHARED_DS(d), os);
|
||||
|
||||
@ -6638,7 +6638,7 @@ ztest_run(ztest_shared_t *zs)
|
||||
* Initialize parent/child shared state.
|
||||
*/
|
||||
mutex_init(&ztest_vdev_lock, NULL, MUTEX_DEFAULT, NULL);
|
||||
VERIFY(rwlock_init(&ztest_name_lock, USYNC_THREAD, NULL) == 0);
|
||||
VERIFY0(pthread_rwlock_init(&ztest_name_lock, NULL));
|
||||
|
||||
zs->zs_thread_start = gethrtime();
|
||||
zs->zs_thread_stop =
|
||||
@ -6795,7 +6795,7 @@ ztest_run(ztest_shared_t *zs)
|
||||
|
||||
list_destroy(&zcl.zcl_callbacks);
|
||||
mutex_destroy(&zcl.zcl_callbacks_lock);
|
||||
(void) rwlock_destroy(&ztest_name_lock);
|
||||
(void) pthread_rwlock_destroy(&ztest_name_lock);
|
||||
mutex_destroy(&ztest_vdev_lock);
|
||||
}
|
||||
|
||||
@ -6946,7 +6946,7 @@ ztest_import(ztest_shared_t *zs)
|
||||
int error;
|
||||
|
||||
mutex_init(&ztest_vdev_lock, NULL, MUTEX_DEFAULT, NULL);
|
||||
VERIFY(rwlock_init(&ztest_name_lock, USYNC_THREAD, NULL) == 0);
|
||||
VERIFY0(pthread_rwlock_init(&ztest_name_lock, NULL));
|
||||
|
||||
kernel_init(FREAD | FWRITE);
|
||||
hdl = libzfs_init();
|
||||
@ -6975,7 +6975,7 @@ ztest_import(ztest_shared_t *zs)
|
||||
ztest_run_zdb(ztest_opts.zo_pool);
|
||||
}
|
||||
|
||||
(void) rwlock_destroy(&ztest_name_lock);
|
||||
(void) pthread_rwlock_destroy(&ztest_name_lock);
|
||||
mutex_destroy(&ztest_vdev_lock);
|
||||
}
|
||||
|
||||
@ -6991,7 +6991,7 @@ ztest_init(ztest_shared_t *zs)
|
||||
int i;
|
||||
|
||||
mutex_init(&ztest_vdev_lock, NULL, MUTEX_DEFAULT, NULL);
|
||||
VERIFY(rwlock_init(&ztest_name_lock, USYNC_THREAD, NULL) == 0);
|
||||
VERIFY0(pthread_rwlock_init(&ztest_name_lock, NULL));
|
||||
|
||||
kernel_init(FREAD | FWRITE);
|
||||
|
||||
@ -7040,7 +7040,7 @@ ztest_init(ztest_shared_t *zs)
|
||||
ztest_run_zdb(ztest_opts.zo_pool);
|
||||
}
|
||||
|
||||
(void) rwlock_destroy(&ztest_name_lock);
|
||||
(void) pthread_rwlock_destroy(&ztest_name_lock);
|
||||
mutex_destroy(&ztest_vdev_lock);
|
||||
}
|
||||
|
||||
|
||||
@ -86,7 +86,6 @@
|
||||
#include <strings.h>
|
||||
#include <pthread.h>
|
||||
#include <setjmp.h>
|
||||
#include <synch.h>
|
||||
#include <assert.h>
|
||||
#include <alloca.h>
|
||||
#include <umem.h>
|
||||
|
||||
@ -15,7 +15,6 @@ libspl_HEADERS = \
|
||||
$(top_srcdir)/lib/libspl/include/stdlib.h \
|
||||
$(top_srcdir)/lib/libspl/include/string.h \
|
||||
$(top_srcdir)/lib/libspl/include/stropts.h \
|
||||
$(top_srcdir)/lib/libspl/include/synch.h \
|
||||
$(top_srcdir)/lib/libspl/include/thread.h \
|
||||
$(top_srcdir)/lib/libspl/include/tzfile.h \
|
||||
$(top_srcdir)/lib/libspl/include/ucred.h \
|
||||
|
||||
@ -1,81 +0,0 @@
|
||||
/*
|
||||
* CDDL HEADER START
|
||||
*
|
||||
* The contents of this file are subject to the terms of the
|
||||
* Common Development and Distribution License, Version 1.0 only
|
||||
* (the "License"). You may not use this file except in compliance
|
||||
* with the License.
|
||||
*
|
||||
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
* or http://www.opensolaris.org/os/licensing.
|
||||
* See the License for the specific language governing permissions
|
||||
* and limitations under the License.
|
||||
*
|
||||
* When distributing Covered Code, include this CDDL HEADER in each
|
||||
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
||||
* If applicable, add the following below this CDDL HEADER, with the
|
||||
* fields enclosed by brackets "[]" replaced with your own identifying
|
||||
* information: Portions Copyright [yyyy] [name of copyright owner]
|
||||
*
|
||||
* CDDL HEADER END
|
||||
*/
|
||||
/*
|
||||
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
|
||||
* Copyright 2014 Zettabyte Software, LLC. All rights reserved.
|
||||
* Use is subject to license terms.
|
||||
*/
|
||||
|
||||
#ifndef _LIBSPL_SYNCH_H
|
||||
#define _LIBSPL_SYNCH_H
|
||||
|
||||
#ifndef __sun__
|
||||
|
||||
#include <assert.h>
|
||||
#include <pthread.h>
|
||||
|
||||
/*
|
||||
* Definitions of synchronization types.
|
||||
*/
|
||||
#define USYNC_THREAD 0x00 /* private to a process */
|
||||
#define USYNC_PROCESS 0x01 /* shared by processes */
|
||||
|
||||
typedef pthread_rwlock_t rwlock_t;
|
||||
|
||||
#define DEFAULTRWLOCK PTHREAD_RWLOCK_INITIALIZER
|
||||
|
||||
static inline int
|
||||
rwlock_init(rwlock_t *rwlp, int type, void *arg)
|
||||
{
|
||||
pthread_rwlockattr_t attr;
|
||||
int err = 0;
|
||||
|
||||
VERIFY0(pthread_rwlockattr_init(&attr));
|
||||
switch (type) {
|
||||
case USYNC_THREAD:
|
||||
VERIFY0(pthread_rwlockattr_setpshared(&attr,
|
||||
PTHREAD_PROCESS_PRIVATE));
|
||||
break;
|
||||
case USYNC_PROCESS:
|
||||
VERIFY0(pthread_rwlockattr_setpshared(&attr,
|
||||
PTHREAD_PROCESS_SHARED));
|
||||
break;
|
||||
default:
|
||||
VERIFY0(1);
|
||||
}
|
||||
|
||||
err = pthread_rwlock_init(rwlp, &attr);
|
||||
VERIFY0(pthread_rwlockattr_destroy(&attr));
|
||||
|
||||
return (err);
|
||||
}
|
||||
|
||||
#define rwlock_destroy(x) pthread_rwlock_destroy((x))
|
||||
#define rw_rdlock(x) pthread_rwlock_rdlock((x))
|
||||
#define rw_wrlock(x) pthread_rwlock_wrlock((x))
|
||||
#define rw_unlock(x) pthread_rwlock_unlock((x))
|
||||
#define rw_tryrdlock(x) pthread_rwlock_tryrdlock((x))
|
||||
#define rw_trywrlock(x) pthread_rwlock_trywrlock((x))
|
||||
|
||||
#endif /* __sun__ */
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user