/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
+ * Copyright (c) 2011 by Delphix. All rights reserved.
*/
/*
#include <sys/zil.h>
#include <sys/ddt.h>
#include <sys/vdev_impl.h>
+#include <sys/vdev_disk.h>
#include <sys/metaslab.h>
#include <sys/metaslab_impl.h>
#include <sys/uberblock_impl.h>
} zio_taskq_info_t;
static const char *const zio_taskq_types[ZIO_TASKQ_TYPES] = {
- "issue", "issue_high", "intr", "intr_high"
+ "iss", "iss_h", "int", "int_h"
};
/*
/* ISSUE ISSUE_HIGH INTR INTR_HIGH */
{ ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL },
{ ZTI_FIX(8), ZTI_NULL, ZTI_BATCH, ZTI_NULL },
- { ZTI_BATCH, ZTI_FIX(5), ZTI_FIX(8), ZTI_FIX(5) },
- { ZTI_FIX(100), ZTI_NULL, ZTI_ONE, ZTI_NULL },
+ { ZTI_BATCH, ZTI_FIX(5), ZTI_FIX(16), ZTI_FIX(5) },
+ { ZTI_PCT(100), ZTI_NULL, ZTI_ONE, ZTI_NULL },
{ ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL },
{ ZTI_ONE, ZTI_NULL, ZTI_ONE, ZTI_NULL },
};
zap_attribute_t za;
int err;
- VERIFY(nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP) == 0);
+ err = nvlist_alloc(nvp, NV_UNIQUE_NAME, KM_SLEEP);
+ if (err)
+ return err;
mutex_enter(&spa->spa_props_lock);
/* If no pool property object, no more prop to get. */
if (mos == NULL || spa->spa_pool_props_object == 0) {
mutex_exit(&spa->spa_props_lock);
- return (0);
+ goto out;
}
/*
}
/*
+ * Change the GUID for the pool. This is done so that we can later
+ * re-import a pool built from a clone of our own vdevs. We will modify
+ * the root vdev's guid, our own pool guid, and then mark all of our
+ * vdevs dirty. Note that we must make sure that all our vdevs are
+ * online when we do this, or else any vdevs that weren't present
+ * would be orphaned from our pool. We are also going to issue a
+ * sysevent to update any watchers.
+ */
+int
+spa_change_guid(spa_t *spa)
+{
+ uint64_t oldguid, newguid;
+ uint64_t txg;
+
+ if (!(spa_mode_global & FWRITE))
+ return (EROFS);
+
+ txg = spa_vdev_enter(spa);
+
+ if (spa->spa_root_vdev->vdev_state != VDEV_STATE_HEALTHY)
+ return (spa_vdev_exit(spa, NULL, txg, ENXIO));
+
+ oldguid = spa_guid(spa);
+ newguid = spa_generate_guid(NULL);
+ ASSERT3U(oldguid, !=, newguid);
+
+ spa->spa_root_vdev->vdev_guid = newguid;
+ spa->spa_root_vdev->vdev_guid_sum += (newguid - oldguid);
+
+ vdev_config_dirty(spa->spa_root_vdev);
+
+ spa_event_notify(spa, NULL, FM_EREPORT_ZFS_POOL_REGUID);
+
+ return (spa_vdev_exit(spa, NULL, txg, 0));
+}
+
+/*
* ==========================================================================
* SPA state manipulation (open/create/destroy/import/export)
* ==========================================================================
static taskq_t *
spa_taskq_create(spa_t *spa, const char *name, enum zti_modes mode,
- uint_t value)
+ uint_t value, uint_t flags)
{
- uint_t flags = TASKQ_PREPOPULATE;
boolean_t batch = B_FALSE;
switch (mode) {
const zio_taskq_info_t *ztip = &zio_taskqs[t][q];
enum zti_modes mode = ztip->zti_mode;
uint_t value = ztip->zti_value;
+ uint_t flags = 0;
char name[32];
+ if (t == ZIO_TYPE_WRITE)
+ flags |= TASKQ_NORECLAIM;
+
(void) snprintf(name, sizeof (name),
"%s_%s", zio_type_name[t], zio_taskq_types[q]);
spa->spa_zio_taskq[t][q] =
- spa_taskq_create(spa, name, mode, value);
+ spa_taskq_create(spa, name, mode, value, flags);
}
}
}
-#ifdef _KERNEL
+#if defined(_KERNEL) && defined(HAVE_SPA_THREAD)
static void
spa_thread(void *arg)
{
ASSERT(spa->spa_proc == &p0);
spa->spa_did = 0;
+#ifdef HAVE_SPA_THREAD
/* Only create a process if we're going to be around a while. */
if (spa_create_process && strcmp(spa->spa_name, TRYIMPORT_NAME) != 0) {
if (newproc(spa_thread, (caddr_t)spa, syscid, maxclsyspri,
#endif
}
}
+#endif /* HAVE_SPA_THREAD */
mutex_exit(&spa->spa_proc_lock);
/* If we didn't create a process, we need to create our taskqs. */
}
spa->spa_spares.sav_count = 0;
- for (i = 0; i < spa->spa_l2cache.sav_count; i++)
+ for (i = 0; i < spa->spa_l2cache.sav_count; i++) {
+ vdev_clear_stats(spa->spa_l2cache.sav_vdevs[i]);
vdev_free(spa->spa_l2cache.sav_vdevs[i]);
+ }
if (spa->spa_l2cache.sav_vdevs) {
kmem_free(spa->spa_l2cache.sav_vdevs,
spa->spa_l2cache.sav_count * sizeof (void *));
vd = oldvdevs[i];
if (vd != NULL) {
+ ASSERT(vd->vdev_isl2cache);
+
if (spa_l2cache_exists(vd->vdev_guid, &pool) &&
pool != 0ULL && l2arc_vdev_present(vd))
l2arc_remove_vdev(vd);
- (void) vdev_close(vd);
- spa_l2cache_remove(vd);
+ vdev_clear_stats(vd);
+ vdev_free(vd);
}
}
nvsize = *(uint64_t *)db->db_data;
dmu_buf_rele(db, FTAG);
- packed = kmem_alloc(nvsize, KM_SLEEP);
+ packed = kmem_alloc(nvsize, KM_SLEEP | KM_NODEBUG);
error = dmu_read(spa->spa_meta_objset, obj, 0, nvsize, packed,
DMU_READ_PREFETCH);
if (error == 0)
spa_guid_exists(pool_guid, 0)) {
error = EEXIST;
} else {
- spa->spa_load_guid = pool_guid;
+ spa->spa_config_guid = pool_guid;
if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_SPLIT,
&nvl) == 0) {
*/
if (type != SPA_IMPORT_ASSEMBLE) {
spa_config_enter(spa, SCL_ALL, FTAG, RW_WRITER);
- error = vdev_validate(rvd);
+ error = vdev_validate(rvd, mosconfig);
spa_config_exit(spa, SCL_ALL, FTAG);
if (error != 0)
cmn_err(CE_WARN, "pool '%s' could not be "
"loaded as it was last accessed by "
"another system (host: %s hostid: 0x%lx). "
- "See: http://www.sun.com/msg/ZFS-8000-EY",
+ "See: http://zfsonlinux.org/msg/ZFS-8000-EY",
spa_name(spa), hostname,
(unsigned long)hostid);
return (EBADF);
if ((strcmp(config, ZPOOL_CONFIG_L2CACHE) == 0) &&
strcmp(vd->vdev_ops->vdev_op_type, VDEV_TYPE_DISK) != 0) {
error = ENOTBLK;
+ vdev_free(vd);
goto out;
}
#endif
if (spa_l2cache_exists(vd->vdev_guid, &pool) &&
pool != 0ULL && l2arc_vdev_present(vd))
l2arc_remove_vdev(vd);
- if (vd->vdev_isl2cache)
- spa_l2cache_remove(vd);
- vdev_clear_stats(vd);
- (void) vdev_close(vd);
}
}
pvd = oldvd->vdev_parent;
if ((error = spa_config_parse(spa, &newrootvd, nvroot, NULL, 0,
- VDEV_ALLOC_ADD)) != 0)
+ VDEV_ALLOC_ATTACH)) != 0)
return (spa_vdev_exit(spa, NULL, txg, EINVAL));
if (newrootvd->vdev_children != 1)
* saves us a pre-read to get data we don't actually care about.
*/
bufsize = P2ROUNDUP(nvsize, SPA_CONFIG_BLOCKSIZE);
- packed = kmem_alloc(bufsize, KM_SLEEP);
+ packed = vmem_alloc(bufsize, KM_SLEEP);
VERIFY(nvlist_pack(nv, &packed, &nvsize, NV_ENCODE_XDR,
KM_SLEEP) == 0);
dmu_write(spa->spa_meta_objset, obj, 0, bufsize, packed, tx);
- kmem_free(packed, bufsize);
+ vmem_free(packed, bufsize);
VERIFY(0 == dmu_bonus_hold(spa->spa_meta_objset, obj, FTAG, &db));
dmu_buf_will_dirty(db, tx);
zfs_ereport_post(name, spa, vd, NULL, 0, 0);
#endif
}
+
+#if defined(_KERNEL) && defined(HAVE_SPL)
+/* state manipulation functions */
+EXPORT_SYMBOL(spa_open);
+EXPORT_SYMBOL(spa_open_rewind);
+EXPORT_SYMBOL(spa_get_stats);
+EXPORT_SYMBOL(spa_create);
+EXPORT_SYMBOL(spa_import_rootpool);
+EXPORT_SYMBOL(spa_import);
+EXPORT_SYMBOL(spa_tryimport);
+EXPORT_SYMBOL(spa_destroy);
+EXPORT_SYMBOL(spa_export);
+EXPORT_SYMBOL(spa_reset);
+EXPORT_SYMBOL(spa_async_request);
+EXPORT_SYMBOL(spa_async_suspend);
+EXPORT_SYMBOL(spa_async_resume);
+EXPORT_SYMBOL(spa_inject_addref);
+EXPORT_SYMBOL(spa_inject_delref);
+EXPORT_SYMBOL(spa_scan_stat_init);
+EXPORT_SYMBOL(spa_scan_get_stats);
+
+/* device maniion */
+EXPORT_SYMBOL(spa_vdev_add);
+EXPORT_SYMBOL(spa_vdev_attach);
+EXPORT_SYMBOL(spa_vdev_detach);
+EXPORT_SYMBOL(spa_vdev_remove);
+EXPORT_SYMBOL(spa_vdev_setpath);
+EXPORT_SYMBOL(spa_vdev_setfru);
+EXPORT_SYMBOL(spa_vdev_split_mirror);
+
+/* spare statech is global across all pools) */
+EXPORT_SYMBOL(spa_spare_add);
+EXPORT_SYMBOL(spa_spare_remove);
+EXPORT_SYMBOL(spa_spare_exists);
+EXPORT_SYMBOL(spa_spare_activate);
+
+/* L2ARC statech is global across all pools) */
+EXPORT_SYMBOL(spa_l2cache_add);
+EXPORT_SYMBOL(spa_l2cache_remove);
+EXPORT_SYMBOL(spa_l2cache_exists);
+EXPORT_SYMBOL(spa_l2cache_activate);
+EXPORT_SYMBOL(spa_l2cache_drop);
+
+/* scanning */
+EXPORT_SYMBOL(spa_scan);
+EXPORT_SYMBOL(spa_scan_stop);
+
+/* spa syncing */
+EXPORT_SYMBOL(spa_sync); /* only for DMU use */
+EXPORT_SYMBOL(spa_sync_allpools);
+
+/* properties */
+EXPORT_SYMBOL(spa_prop_set);
+EXPORT_SYMBOL(spa_prop_get);
+EXPORT_SYMBOL(spa_prop_clear_bootfs);
+
+/* asynchronous event notification */
+EXPORT_SYMBOL(spa_event_notify);
+#endif
git://git.camperquake.de / zfs.git / blobdiff