*/
/*
- * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <sys/zap.h>
#include <sys/fs/zfs.h>
#include <sys/arc.h>
+#include <sys/zil.h>
/*
* Virtual device management.
{
uint64_t asize = P2ROUNDUP(psize, 1ULL << vd->vdev_top->vdev_ashift);
uint64_t csize;
- uint64_t c;
- for (c = 0; c < vd->vdev_children; c++) {
+ for (int c = 0; c < vd->vdev_children; c++) {
csize = vdev_psize_to_asize(vd->vdev_child[c], psize);
asize = MAX(asize, csize);
}
}
/*
- * Get the replaceable or attachable device size.
- * If the parent is a mirror or raidz, the replaceable size is the minimum
- * psize of all its children. For the rest, just return our own psize.
- *
- * e.g.
- * psize rsize
- * root - -
- * mirror/raidz - -
- * disk1 20g 20g
- * disk2 40g 20g
- * disk3 80g 80g
+ * Get the minimum allocatable size. We define the allocatable size as
+ * the vdev's asize rounded to the nearest metaslab. This allows us to
+ * replace or attach devices which don't have the same physical size but
+ * can still satisfy the same number of allocations.
*/
uint64_t
-vdev_get_rsize(vdev_t *vd)
+vdev_get_min_asize(vdev_t *vd)
{
- vdev_t *pvd, *cvd;
- uint64_t c, rsize;
+ vdev_t *pvd = vd->vdev_parent;
- pvd = vd->vdev_parent;
+ /*
+ * The our parent is NULL (inactive spare or cache) or is the root,
+ * just return our own asize.
+ */
+ if (pvd == NULL)
+ return (vd->vdev_asize);
/*
- * If our parent is NULL or the root, just return our own psize.
+ * The top-level vdev just returns the allocatable size rounded
+ * to the nearest metaslab.
*/
- if (pvd == NULL || pvd->vdev_parent == NULL)
- return (vd->vdev_psize);
+ if (vd == vd->vdev_top)
+ return (P2ALIGN(vd->vdev_asize, 1ULL << vd->vdev_ms_shift));
- rsize = 0;
+ /*
+ * The allocatable space for a raidz vdev is N * sizeof(smallest child),
+ * so each child must provide at least 1/Nth of its asize.
+ */
+ if (pvd->vdev_ops == &vdev_raidz_ops)
+ return (pvd->vdev_min_asize / pvd->vdev_children);
- for (c = 0; c < pvd->vdev_children; c++) {
- cvd = pvd->vdev_child[c];
- rsize = MIN(rsize - 1, cvd->vdev_psize - 1) + 1;
- }
+ return (pvd->vdev_min_asize);
+}
- return (rsize);
+void
+vdev_set_min_asize(vdev_t *vd)
+{
+ vd->vdev_min_asize = vdev_get_min_asize(vd);
+
+ for (int c = 0; c < vd->vdev_children; c++)
+ vdev_set_min_asize(vd->vdev_child[c]);
}
vdev_t *
vdev_t *
vdev_lookup_by_guid(vdev_t *vd, uint64_t guid)
{
- int c;
vdev_t *mvd;
if (vd->vdev_guid == guid)
return (vd);
- for (c = 0; c < vd->vdev_children; c++)
+ for (int c = 0; c < vd->vdev_children; c++)
if ((mvd = vdev_lookup_by_guid(vd->vdev_child[c], guid)) !=
NULL)
return (mvd);
{
vdev_t **newchild, *cvd;
int oldc = pvd->vdev_children;
- int newc, c;
+ int newc;
ASSERT(spa_config_held(pvd->vdev_spa, SCL_ALL, RW_WRITER) == SCL_ALL);
- for (c = newc = 0; c < oldc; c++)
+ for (int c = newc = 0; c < oldc; c++)
if (pvd->vdev_child[c])
newc++;
newchild = kmem_alloc(newc * sizeof (vdev_t *), KM_SLEEP);
- for (c = newc = 0; c < oldc; c++) {
+ for (int c = newc = 0; c < oldc; c++) {
if ((cvd = pvd->vdev_child[c]) != NULL) {
newchild[newc] = cvd;
cvd->vdev_id = newc++;
} else if (alloctype == VDEV_ALLOC_L2CACHE) {
if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) != 0)
return (EINVAL);
+ } else if (alloctype == VDEV_ALLOC_ROOTPOOL) {
+ if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_GUID, &guid) != 0)
+ return (EINVAL);
}
/*
if (nvlist_lookup_string(nv, ZPOOL_CONFIG_PHYS_PATH,
&vd->vdev_physpath) == 0)
vd->vdev_physpath = spa_strdup(vd->vdev_physpath);
+ if (nvlist_lookup_string(nv, ZPOOL_CONFIG_FRU, &vd->vdev_fru) == 0)
+ vd->vdev_fru = spa_strdup(vd->vdev_fru);
/*
* Set the whole_disk property. If it's not specified, leave the value
* Look for the 'not present' flag. This will only be set if the device
* was not present at the time of import.
*/
- if (!spa->spa_import_faulted)
- (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
- &vd->vdev_not_present);
+ (void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
+ &vd->vdev_not_present);
/*
* Get the alignment requirement.
* If we're a leaf vdev, try to load the DTL object and other state.
*/
if (vd->vdev_ops->vdev_op_leaf &&
- (alloctype == VDEV_ALLOC_LOAD || alloctype == VDEV_ALLOC_L2CACHE)) {
+ (alloctype == VDEV_ALLOC_LOAD || alloctype == VDEV_ALLOC_L2CACHE ||
+ alloctype == VDEV_ALLOC_ROOTPOOL)) {
if (alloctype == VDEV_ALLOC_LOAD) {
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_DTL,
&vd->vdev_dtl_smo.smo_object);
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_UNSPARE,
&vd->vdev_unspare);
}
+
+ if (alloctype == VDEV_ALLOC_ROOTPOOL) {
+ uint64_t spare = 0;
+
+ if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_IS_SPARE,
+ &spare) == 0 && spare)
+ spa_spare_add(vd);
+ }
+
(void) nvlist_lookup_uint64(nv, ZPOOL_CONFIG_OFFLINE,
&vd->vdev_offline);
void
vdev_free(vdev_t *vd)
{
- int c;
spa_t *spa = vd->vdev_spa;
/*
/*
* Free all children.
*/
- for (c = 0; c < vd->vdev_children; c++)
+ for (int c = 0; c < vd->vdev_children; c++)
vdev_free(vd->vdev_child[c]);
ASSERT(vd->vdev_child == NULL);
spa_strfree(vd->vdev_devid);
if (vd->vdev_physpath)
spa_strfree(vd->vdev_physpath);
+ if (vd->vdev_fru)
+ spa_strfree(vd->vdev_fru);
if (vd->vdev_isspare)
spa_spare_remove(vd);
static void
vdev_top_update(vdev_t *tvd, vdev_t *vd)
{
- int c;
-
if (vd == NULL)
return;
vd->vdev_top = tvd;
- for (c = 0; c < vd->vdev_children; c++)
+ for (int c = 0; c < vd->vdev_children; c++)
vdev_top_update(tvd, vd->vdev_child[c]);
}
mvd = vdev_alloc_common(spa, cvd->vdev_id, 0, ops);
mvd->vdev_asize = cvd->vdev_asize;
+ mvd->vdev_min_asize = cvd->vdev_min_asize;
mvd->vdev_ashift = cvd->vdev_ashift;
mvd->vdev_state = cvd->vdev_state;
if (vd->vdev_ms_shift == 0) /* not being allocated from yet */
return (0);
+ /*
+ * Compute the raidz-deflation ratio. Note, we hard-code
+ * in 128k (1 << 17) because it is the current "typical" blocksize.
+ * Even if SPA_MAXBLOCKSIZE changes, this algorithm must never change,
+ * or we will inconsistently account for existing bp's.
+ */
+ vd->vdev_deflate_ratio = (1 << 17) /
+ (vdev_psize_to_asize(vd, 1 << 17) >> SPA_MINBLOCKSHIFT);
+
ASSERT(oldc <= newc);
if (vd->vdev_islog)
if (txg == 0) {
uint64_t object = 0;
error = dmu_read(mos, vd->vdev_ms_array,
- m * sizeof (uint64_t), sizeof (uint64_t), &object);
+ m * sizeof (uint64_t), sizeof (uint64_t), &object,
+ DMU_READ_PREFETCH);
if (error)
return (error);
if (object != 0) {
boolean_t vps_readable;
boolean_t vps_writeable;
int vps_flags;
- zio_t *vps_root;
- vdev_t *vps_vd;
} vdev_probe_stats_t;
static void
vdev_probe_done(zio_t *zio)
{
spa_t *spa = zio->io_spa;
+ vdev_t *vd = zio->io_vd;
vdev_probe_stats_t *vps = zio->io_private;
- vdev_t *vd = vps->vps_vd;
+
+ ASSERT(vd->vdev_probe_zio != NULL);
if (zio->io_type == ZIO_TYPE_READ) {
- ASSERT(zio->io_vd == vd);
if (zio->io_error == 0)
vps->vps_readable = 1;
if (zio->io_error == 0 && spa_writeable(spa)) {
- zio_nowait(zio_write_phys(vps->vps_root, vd,
+ zio_nowait(zio_write_phys(vd->vdev_probe_zio, vd,
zio->io_offset, zio->io_size, zio->io_data,
ZIO_CHECKSUM_OFF, vdev_probe_done, vps,
ZIO_PRIORITY_SYNC_WRITE, vps->vps_flags, B_TRUE));
zio_buf_free(zio->io_data, zio->io_size);
}
} else if (zio->io_type == ZIO_TYPE_WRITE) {
- ASSERT(zio->io_vd == vd);
if (zio->io_error == 0)
vps->vps_writeable = 1;
zio_buf_free(zio->io_data, zio->io_size);
} else if (zio->io_type == ZIO_TYPE_NULL) {
- ASSERT(zio->io_vd == NULL);
- ASSERT(zio == vps->vps_root);
+ zio_t *pio;
vd->vdev_cant_read |= !vps->vps_readable;
vd->vdev_cant_write |= !vps->vps_writeable;
spa, vd, NULL, 0, 0);
zio->io_error = ENXIO;
}
+
+ mutex_enter(&vd->vdev_probe_lock);
+ ASSERT(vd->vdev_probe_zio == zio);
+ vd->vdev_probe_zio = NULL;
+ mutex_exit(&vd->vdev_probe_lock);
+
+ while ((pio = zio_walk_parents(zio)) != NULL)
+ if (!vdev_accessible(vd, pio))
+ pio->io_error = ENXIO;
+
kmem_free(vps, sizeof (*vps));
}
}
* but the first (which we leave alone in case it contains a VTOC).
*/
zio_t *
-vdev_probe(vdev_t *vd, zio_t *pio)
+vdev_probe(vdev_t *vd, zio_t *zio)
{
spa_t *spa = vd->vdev_spa;
- vdev_probe_stats_t *vps;
- zio_t *zio;
+ vdev_probe_stats_t *vps = NULL;
+ zio_t *pio;
- vps = kmem_zalloc(sizeof (*vps), KM_SLEEP);
+ ASSERT(vd->vdev_ops->vdev_op_leaf);
- vps->vps_flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_PROBE |
- ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_AGGREGATE | ZIO_FLAG_DONT_RETRY;
+ /*
+ * Don't probe the probe.
+ */
+ if (zio && (zio->io_flags & ZIO_FLAG_PROBE))
+ return (NULL);
- if (spa_config_held(spa, SCL_ZIO, RW_WRITER)) {
- /*
- * vdev_cant_read and vdev_cant_write can only transition
- * from TRUE to FALSE when we have the SCL_ZIO lock as writer;
- * otherwise they can only transition from FALSE to TRUE.
- * This ensures that any zio looking at these values can
- * assume that failures persist for the life of the I/O.
- * That's important because when a device has intermittent
- * connectivity problems, we want to ensure that they're
- * ascribed to the device (ENXIO) and not the zio (EIO).
- *
- * Since we hold SCL_ZIO as writer here, clear both values
- * so the probe can reevaluate from first principles.
- */
- vps->vps_flags |= ZIO_FLAG_CONFIG_WRITER;
- vd->vdev_cant_read = B_FALSE;
- vd->vdev_cant_write = B_FALSE;
+ /*
+ * To prevent 'probe storms' when a device fails, we create
+ * just one probe i/o at a time. All zios that want to probe
+ * this vdev will become parents of the probe io.
+ */
+ mutex_enter(&vd->vdev_probe_lock);
+
+ if ((pio = vd->vdev_probe_zio) == NULL) {
+ vps = kmem_zalloc(sizeof (*vps), KM_SLEEP);
+
+ vps->vps_flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_PROBE |
+ ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_AGGREGATE |
+ ZIO_FLAG_TRYHARD;
+
+ if (spa_config_held(spa, SCL_ZIO, RW_WRITER)) {
+ /*
+ * vdev_cant_read and vdev_cant_write can only
+ * transition from TRUE to FALSE when we have the
+ * SCL_ZIO lock as writer; otherwise they can only
+ * transition from FALSE to TRUE. This ensures that
+ * any zio looking at these values can assume that
+ * failures persist for the life of the I/O. That's
+ * important because when a device has intermittent
+ * connectivity problems, we want to ensure that
+ * they're ascribed to the device (ENXIO) and not
+ * the zio (EIO).
+ *
+ * Since we hold SCL_ZIO as writer here, clear both
+ * values so the probe can reevaluate from first
+ * principles.
+ */
+ vps->vps_flags |= ZIO_FLAG_CONFIG_WRITER;
+ vd->vdev_cant_read = B_FALSE;
+ vd->vdev_cant_write = B_FALSE;
+ }
+
+ vd->vdev_probe_zio = pio = zio_null(NULL, spa, vd,
+ vdev_probe_done, vps,
+ vps->vps_flags | ZIO_FLAG_DONT_PROPAGATE);
+
+ if (zio != NULL) {
+ vd->vdev_probe_wanted = B_TRUE;
+ spa_async_request(spa, SPA_ASYNC_PROBE);
+ }
}
- ASSERT(vd->vdev_ops->vdev_op_leaf);
+ if (zio != NULL)
+ zio_add_child(zio, pio);
- zio = zio_null(pio, spa, vdev_probe_done, vps, vps->vps_flags);
+ mutex_exit(&vd->vdev_probe_lock);
- vps->vps_root = zio;
- vps->vps_vd = vd;
+ if (vps == NULL) {
+ ASSERT(zio != NULL);
+ return (NULL);
+ }
for (int l = 1; l < VDEV_LABELS; l++) {
- zio_nowait(zio_read_phys(zio, vd,
+ zio_nowait(zio_read_phys(pio, vd,
vdev_label_offset(vd->vdev_psize, l,
- offsetof(vdev_label_t, vl_pad)),
- VDEV_SKIP_SIZE, zio_buf_alloc(VDEV_SKIP_SIZE),
+ offsetof(vdev_label_t, vl_pad2)),
+ VDEV_PAD_SIZE, zio_buf_alloc(VDEV_PAD_SIZE),
ZIO_CHECKSUM_OFF, vdev_probe_done, vps,
ZIO_PRIORITY_SYNC_READ, vps->vps_flags, B_TRUE));
}
- return (zio);
+ if (zio == NULL)
+ return (pio);
+
+ zio_nowait(pio);
+ return (NULL);
}
/*
{
spa_t *spa = vd->vdev_spa;
int error;
- int c;
uint64_t osize = 0;
uint64_t asize, psize;
uint64_t ashift = 0;
vd->vdev_state == VDEV_STATE_OFFLINE);
vd->vdev_stat.vs_aux = VDEV_AUX_NONE;
+ vd->vdev_cant_read = B_FALSE;
+ vd->vdev_cant_write = B_FALSE;
+ vd->vdev_min_asize = vdev_get_min_asize(vd);
if (!vd->vdev_removed && vd->vdev_faulted) {
ASSERT(vd->vdev_children == 0);
error = vd->vdev_ops->vdev_op_open(vd, &osize, &ashift);
if (zio_injection_enabled && error == 0)
- error = zio_handle_device_injection(vd, ENXIO);
+ error = zio_handle_device_injection(vd, NULL, ENXIO);
if (error) {
if (vd->vdev_removed &&
vd->vdev_state = VDEV_STATE_HEALTHY;
}
- for (c = 0; c < vd->vdev_children; c++)
+ for (int c = 0; c < vd->vdev_children; c++) {
if (vd->vdev_child[c]->vdev_state != VDEV_STATE_HEALTHY) {
vdev_set_state(vd, B_TRUE, VDEV_STATE_DEGRADED,
VDEV_AUX_NONE);
break;
}
+ }
osize = P2ALIGN(osize, (uint64_t)sizeof (vdev_label_t));
vd->vdev_psize = psize;
+ /*
+ * Make sure the allocatable size hasn't shrunk.
+ */
+ if (asize < vd->vdev_min_asize) {
+ vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN,
+ VDEV_AUX_BAD_LABEL);
+ return (EINVAL);
+ }
+
if (vd->vdev_asize == 0) {
/*
* This is the first-ever open, so use the computed values.
VDEV_AUX_BAD_LABEL);
return (EINVAL);
}
+ }
- /*
- * Make sure the device hasn't shrunk.
- */
- if (asize < vd->vdev_asize) {
- vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN,
- VDEV_AUX_BAD_LABEL);
- return (EINVAL);
- }
+ /*
+ * If all children are healthy and the asize has increased,
+ * then we've experienced dynamic LUN growth. If automatic
+ * expansion is enabled then use the additional space.
+ */
+ if (vd->vdev_state == VDEV_STATE_HEALTHY && asize > vd->vdev_asize &&
+ (vd->vdev_expanding || spa->spa_autoexpand))
+ vd->vdev_asize = asize;
- /*
- * If all children are healthy and the asize has increased,
- * then we've experienced dynamic LUN growth.
- */
- if (vd->vdev_state == VDEV_STATE_HEALTHY &&
- asize > vd->vdev_asize) {
- vd->vdev_asize = asize;
- }
- }
+ vdev_set_min_asize(vd);
/*
* Ensure we can issue some IO before declaring the
}
/*
- * If this is a top-level vdev, compute the raidz-deflation
- * ratio. Note, we hard-code in 128k (1<<17) because it is the
- * current "typical" blocksize. Even if SPA_MAXBLOCKSIZE
- * changes, this algorithm must never change, or we will
- * inconsistently account for existing bp's.
- */
- if (vd->vdev_top == vd) {
- vd->vdev_deflate_ratio = (1<<17) /
- (vdev_psize_to_asize(vd, 1<<17) >> SPA_MINBLOCKSHIFT);
- }
-
- /*
* If a leaf vdev has a DTL, and seems healthy, then kick off a
* resilver. But don't do this if we are doing a reopen for a scrub,
* since this would just restart the scrub we are already doing.
vdev_validate(vdev_t *vd)
{
spa_t *spa = vd->vdev_spa;
- int c;
nvlist_t *label;
uint64_t guid, top_guid;
uint64_t state;
- for (c = 0; c < vd->vdev_children; c++)
+ for (int c = 0; c < vd->vdev_children; c++)
if (vdev_validate(vd->vdev_child[c]) != 0)
return (EBADF);
vdev_cache_purge(vd);
/*
- * We record the previous state before we close it, so that if we are
+ * We record the previous state before we close it, so that if we are
* doing a reopen(), we don't generate FMA ereports if we notice that
* it's still faulted.
*/
if (vd->vdev_aux) {
(void) vdev_validate_aux(vd);
if (vdev_readable(vd) && vdev_writeable(vd) &&
- !l2arc_vdev_present(vd)) {
- uint64_t size = vdev_get_rsize(vd);
- l2arc_add_vdev(spa, vd,
- VDEV_LABEL_START_SIZE,
- size - VDEV_LABEL_START_SIZE);
- }
+ vd->vdev_aux == &spa->spa_l2cache &&
+ !l2arc_vdev_present(vd))
+ l2arc_add_vdev(spa, vd);
} else {
(void) vdev_validate(vd);
}
return (0);
}
-/*
- * The is the latter half of vdev_create(). It is distinct because it
- * involves initiating transactions in order to do metaslab creation.
- * For creation, we want to try to create all vdevs at once and then undo it
- * if anything fails; this is much harder if we have pending transactions.
- */
void
-vdev_init(vdev_t *vd, uint64_t txg)
+vdev_metaslab_set_size(vdev_t *vd)
{
/*
* Aim for roughly 200 metaslabs per vdev.
*/
vd->vdev_ms_shift = highbit(vd->vdev_asize / 200);
vd->vdev_ms_shift = MAX(vd->vdev_ms_shift, SPA_MAXBLOCKSHIFT);
-
- /*
- * Initialize the vdev's metaslabs. This can't fail because
- * there's nothing to read when creating all new metaslabs.
- */
- VERIFY(vdev_metaslab_init(vd, txg) == 0);
}
void
int
vdev_online(spa_t *spa, uint64_t guid, uint64_t flags, vdev_state_t *newstate)
{
- vdev_t *vd;
+ vdev_t *vd, *tvd, *pvd, *rvd = spa->spa_root_vdev;
spa_vdev_state_enter(spa);
if (!vd->vdev_ops->vdev_op_leaf)
return (spa_vdev_state_exit(spa, NULL, ENOTSUP));
+ tvd = vd->vdev_top;
vd->vdev_offline = B_FALSE;
vd->vdev_tmpoffline = B_FALSE;
vd->vdev_checkremove = !!(flags & ZFS_ONLINE_CHECKREMOVE);
vd->vdev_forcefault = !!(flags & ZFS_ONLINE_FORCEFAULT);
- vdev_reopen(vd->vdev_top);
+
+ /* XXX - L2ARC 1.0 does not support expansion */
+ if (!vd->vdev_aux) {
+ for (pvd = vd; pvd != rvd; pvd = pvd->vdev_parent)
+ pvd->vdev_expanding = !!(flags & ZFS_ONLINE_EXPAND);
+ }
+
+ vdev_reopen(tvd);
vd->vdev_checkremove = vd->vdev_forcefault = B_FALSE;
+ if (!vd->vdev_aux) {
+ for (pvd = vd; pvd != rvd; pvd = pvd->vdev_parent)
+ pvd->vdev_expanding = B_FALSE;
+ }
+
if (newstate)
*newstate = vd->vdev_state;
if ((flags & ZFS_ONLINE_UNSPARE) &&
vd->vdev_parent->vdev_child[0] == vd)
vd->vdev_unspare = B_TRUE;
+ if ((flags & ZFS_ONLINE_EXPAND) || spa->spa_autoexpand) {
+
+ /* XXX - L2ARC 1.0 does not support expansion */
+ if (vd->vdev_aux)
+ return (spa_vdev_state_exit(spa, vd, ENOTSUP));
+ spa_async_request(spa, SPA_ASYNC_CONFIG_UPDATE);
+ }
return (spa_vdev_state_exit(spa, vd, 0));
}
int
vdev_offline(spa_t *spa, uint64_t guid, uint64_t flags)
{
- vdev_t *vd;
+ vdev_t *vd, *tvd;
+ int error;
spa_vdev_state_enter(spa);
if (!vd->vdev_ops->vdev_op_leaf)
return (spa_vdev_state_exit(spa, NULL, ENOTSUP));
+ tvd = vd->vdev_top;
+
/*
* If the device isn't already offline, try to offline it.
*/
if (!vd->vdev_offline) {
/*
* If this device has the only valid copy of some data,
- * don't allow it to be offlined.
+ * don't allow it to be offlined. Log devices are always
+ * expendable.
*/
- if (vd->vdev_aux == NULL && vdev_dtl_required(vd))
+ if (!tvd->vdev_islog && vd->vdev_aux == NULL &&
+ vdev_dtl_required(vd))
return (spa_vdev_state_exit(spa, NULL, EBUSY));
/*
* Offline this device and reopen its top-level vdev.
- * If this action results in the top-level vdev becoming
- * unusable, undo it and fail the request.
+ * If the top-level vdev is a log device then just offline
+ * it. Otherwise, if this action results in the top-level
+ * vdev becoming unusable, undo it and fail the request.
*/
vd->vdev_offline = B_TRUE;
- vdev_reopen(vd->vdev_top);
- if (vd->vdev_aux == NULL && vdev_is_dead(vd->vdev_top)) {
+ vdev_reopen(tvd);
+
+ if (!tvd->vdev_islog && vd->vdev_aux == NULL &&
+ vdev_is_dead(tvd)) {
vd->vdev_offline = B_FALSE;
- vdev_reopen(vd->vdev_top);
+ vdev_reopen(tvd);
return (spa_vdev_state_exit(spa, NULL, EBUSY));
}
}
vd->vdev_tmpoffline = !!(flags & ZFS_OFFLINE_TEMPORARY);
- return (spa_vdev_state_exit(spa, vd, 0));
+ if (!tvd->vdev_islog || !vdev_is_dead(tvd))
+ return (spa_vdev_state_exit(spa, vd, 0));
+
+ (void) spa_vdev_state_exit(spa, vd, 0);
+
+ error = dmu_objset_find(spa_name(spa), zil_vdev_offline,
+ NULL, DS_FIND_CHILDREN);
+ if (error) {
+ (void) vdev_online(spa, guid, 0, NULL);
+ return (error);
+ }
+ /*
+ * If we successfully offlined the log device then we need to
+ * sync out the current txg so that the "stubby" block can be
+ * removed by zil_sync().
+ */
+ txg_wait_synced(spa->spa_dsl_pool, 0);
+ return (0);
}
/*
vs->vs_scrub_errors = vd->vdev_spa->spa_scrub_errors;
vs->vs_timestamp = gethrtime() - vs->vs_timestamp;
vs->vs_state = vd->vdev_state;
- vs->vs_rsize = vdev_get_rsize(vd);
+ vs->vs_rsize = vdev_get_min_asize(vd);
+ if (vd->vdev_ops->vdev_op_leaf)
+ vs->vs_rsize += VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE;
mutex_exit(&vd->vdev_stat_lock);
/*
if (flags & ZIO_FLAG_SPECULATIVE)
return;
+ /*
+ * If this is an I/O error that is going to be retried, then ignore the
+ * error. Otherwise, the user may interpret B_FAILFAST I/O errors as
+ * hard errors, when in reality they can happen for any number of
+ * innocuous reasons (bus resets, MPxIO link failure, etc).
+ */
+ if (zio->io_error == EIO &&
+ !(zio->io_flags & ZIO_FLAG_IO_RETRY))
+ return;
+
mutex_enter(&vd->vdev_stat_lock);
- if (type == ZIO_TYPE_READ) {
+ if (type == ZIO_TYPE_READ && !vdev_is_dead(vd)) {
if (zio->io_error == ECKSUM)
vs->vs_checksum_errors++;
else
vs->vs_read_errors++;
}
- if (type == ZIO_TYPE_WRITE)
+ if (type == ZIO_TYPE_WRITE && !vdev_is_dead(vd))
vs->vs_write_errors++;
mutex_exit(&vd->vdev_stat_lock);
void
vdev_scrub_stat_update(vdev_t *vd, pool_scrub_type_t type, boolean_t complete)
{
- int c;
vdev_stat_t *vs = &vd->vdev_stat;
- for (c = 0; c < vd->vdev_children; c++)
+ for (int c = 0; c < vd->vdev_children; c++)
vdev_scrub_stat_update(vd->vdev_child[c], type, complete);
mutex_enter(&vd->vdev_stat_lock);
* childrens', thus not accurate enough for us.
*/
ASSERT((dspace_delta & (SPA_MINBLOCKSIZE-1)) == 0);
+ ASSERT(vd->vdev_deflate_ratio != 0 || vd->vdev_isl2cache);
dspace_delta = (dspace_delta >> SPA_MINBLOCKSHIFT) *
vd->vdev_deflate_ratio;
int c;
/*
- * If this is an aux vdev (as with l2cache devices), then we update the
- * vdev config manually and set the sync flag.
+ * If this is an aux vdev (as with l2cache and spare devices), then we
+ * update the vdev config manually and set the sync flag.
*/
if (vd->vdev_aux != NULL) {
spa_aux_vdev_t *sav = vd->vdev_aux;
sav->sav_sync = B_TRUE;
- VERIFY(nvlist_lookup_nvlist_array(sav->sav_config,
- ZPOOL_CONFIG_L2CACHE, &aux, &naux) == 0);
+ if (nvlist_lookup_nvlist_array(sav->sav_config,
+ ZPOOL_CONFIG_L2CACHE, &aux, &naux) != 0) {
+ VERIFY(nvlist_lookup_nvlist_array(sav->sav_config,
+ ZPOOL_CONFIG_SPARES, &aux, &naux) == 0);
+ }
ASSERT(c < naux);
vdev_t *rvd = spa->spa_root_vdev;
int degraded = 0, faulted = 0;
int corrupted = 0;
- int c;
vdev_t *child;
if (vd->vdev_children > 0) {
- for (c = 0; c < vd->vdev_children; c++) {
+ for (int c = 0; c < vd->vdev_children; c++) {
child = vd->vdev_child[c];
if (!vdev_readable(child) ||
* an error.
*/
if (spa->spa_load_state == SPA_LOAD_IMPORT &&
- !spa->spa_import_faulted &&
vd->vdev_ops->vdev_op_leaf)
vd->vdev_not_present = 1;
vd->vdev_removed = B_FALSE;
}
- if (!isopen)
- vdev_propagate_state(vd);
+ if (!isopen && vd->vdev_parent)
+ vdev_propagate_state(vd->vdev_parent);
}
/*
boolean_t
vdev_is_bootable(vdev_t *vd)
{
- int c;
-
if (!vd->vdev_ops->vdev_op_leaf) {
char *vdev_type = vd->vdev_ops->vdev_op_type;
return (B_FALSE);
}
- for (c = 0; c < vd->vdev_children; c++) {
+ for (int c = 0; c < vd->vdev_children; c++) {
if (!vdev_is_bootable(vd->vdev_child[c]))
return (B_FALSE);
}
return (B_TRUE);
}
+
+void
+vdev_load_log_state(vdev_t *vd, nvlist_t *nv)
+{
+ uint_t children;
+ nvlist_t **child;
+ uint64_t val;
+ spa_t *spa = vd->vdev_spa;
+
+ if (nvlist_lookup_nvlist_array(nv, ZPOOL_CONFIG_CHILDREN,
+ &child, &children) == 0) {
+ for (int c = 0; c < children; c++)
+ vdev_load_log_state(vd->vdev_child[c], child[c]);
+ }
+
+ if (vd->vdev_ops->vdev_op_leaf && nvlist_lookup_uint64(nv,
+ ZPOOL_CONFIG_OFFLINE, &val) == 0 && val) {
+
+ /*
+ * It would be nice to call vdev_offline()
+ * directly but the pool isn't fully loaded and
+ * the txg threads have not been started yet.
+ */
+ spa_config_enter(spa, SCL_STATE_ALL, FTAG, RW_WRITER);
+ vd->vdev_offline = val;
+ vdev_reopen(vd->vdev_top);
+ spa_config_exit(spa, SCL_STATE_ALL, FTAG);
+ }
+}
+
+/*
+ * Expand a vdev if possible.
+ */
+void
+vdev_expand(vdev_t *vd, uint64_t txg)
+{
+ ASSERT(vd->vdev_top == vd);
+ ASSERT(spa_config_held(vd->vdev_spa, SCL_ALL, RW_WRITER) == SCL_ALL);
+
+ if ((vd->vdev_asize >> vd->vdev_ms_shift) > vd->vdev_ms_count) {
+ VERIFY(vdev_metaslab_init(vd, txg) == 0);
+ vdev_config_dirty(vd);
+ }
+}
git://git.camperquake.de / zfs.git / blobdiff