/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
*/
#include <sys/zfs_context.h>
vdev_t *pvd = vd->vdev_parent;
/*
- * The our parent is NULL (inactive spare or cache) or is the root,
+ * If our parent is NULL (inactive spare or cache) or is the root,
* just return our own asize.
*/
if (pvd == NULL)
pvd->vdev_children = MAX(pvd->vdev_children, id + 1);
newsize = pvd->vdev_children * sizeof (vdev_t *);
- newchild = kmem_zalloc(newsize, KM_SLEEP);
+ newchild = kmem_zalloc(newsize, KM_PUSHPAGE);
if (pvd->vdev_child != NULL) {
bcopy(pvd->vdev_child, newchild, oldsize);
kmem_free(pvd->vdev_child, oldsize);
if (pvd->vdev_child[c])
newc++;
- newchild = kmem_alloc(newc * sizeof (vdev_t *), KM_SLEEP);
+ newchild = kmem_alloc(newc * sizeof (vdev_t *), KM_PUSHPAGE);
for (c = newc = 0; c < oldc; c++) {
if ((cvd = pvd->vdev_child[c]) != NULL) {
vdev_t *vd;
int t;
- vd = kmem_zalloc(sizeof (vdev_t), KM_SLEEP);
+ vd = kmem_zalloc(sizeof (vdev_t), KM_PUSHPAGE);
if (spa->spa_root_vdev == NULL) {
ASSERT(ops == &vdev_root_ops);
spa->spa_root_vdev = vd;
+ spa->spa_load_guid = spa_generate_guid(NULL);
}
if (guid == 0 && ops != &vdev_hole_ops) {
&vd->vdev_removing);
}
- if (parent && !parent->vdev_parent) {
+ if (parent && !parent->vdev_parent && alloctype != VDEV_ALLOC_ATTACH) {
ASSERT(alloctype == VDEV_ALLOC_LOAD ||
alloctype == VDEV_ALLOC_ADD ||
alloctype == VDEV_ALLOC_SPLIT ||
svd->vdev_ms_shift = 0;
svd->vdev_ms_count = 0;
+ if (tvd->vdev_mg)
+ ASSERT3P(tvd->vdev_mg, ==, svd->vdev_mg);
tvd->vdev_mg = svd->vdev_mg;
tvd->vdev_ms = svd->vdev_ms;
mvd->vdev_asize = cvd->vdev_asize;
mvd->vdev_min_asize = cvd->vdev_min_asize;
+ mvd->vdev_max_asize = cvd->vdev_max_asize;
mvd->vdev_ashift = cvd->vdev_ashift;
mvd->vdev_state = cvd->vdev_state;
mvd->vdev_crtxg = cvd->vdev_crtxg;
ASSERT(oldc <= newc);
- mspp = kmem_zalloc(newc * sizeof (*mspp), KM_SLEEP);
+ mspp = kmem_zalloc(newc * sizeof (*mspp), KM_PUSHPAGE | KM_NODEBUG);
if (oldc != 0) {
bcopy(vd->vdev_ms, mspp, oldc * sizeof (*mspp));
mutex_enter(&vd->vdev_probe_lock);
if ((pio = vd->vdev_probe_zio) == NULL) {
- vps = kmem_zalloc(sizeof (*vps), KM_SLEEP);
+ vps = kmem_zalloc(sizeof (*vps), KM_PUSHPAGE);
vps->vps_flags = ZIO_FLAG_CANFAIL | ZIO_FLAG_PROBE |
ZIO_FLAG_DONT_CACHE | ZIO_FLAG_DONT_AGGREGATE |
boolean_t
vdev_uses_zvols(vdev_t *vd)
{
+/*
+ * Stacking zpools on top of zvols is unsupported until we implement a method
+ * for determining if an arbitrary block device is a zvol without using the
+ * path. Solaris would check the 'zvol' path component but this does not
+ * exist in the Linux port, so we really should do something like stat the
+ * file and check the major number. This is complicated by the fact that
+ * we need to do this portably in user or kernel space.
+ */
+#if 0
int c;
if (vd->vdev_path && strncmp(vd->vdev_path, ZVOL_DIR,
for (c = 0; c < vd->vdev_children; c++)
if (vdev_uses_zvols(vd->vdev_child[c]))
return (B_TRUE);
+#endif
return (B_FALSE);
}
spa_t *spa = vd->vdev_spa;
int error;
uint64_t osize = 0;
- uint64_t asize, psize;
+ uint64_t max_osize = 0;
+ uint64_t asize, max_asize, psize;
uint64_t ashift = 0;
int c;
return (ENXIO);
}
- error = vd->vdev_ops->vdev_op_open(vd, &osize, &ashift);
+ error = vd->vdev_ops->vdev_op_open(vd, &osize, &max_osize, &ashift);
/*
* Reset the vdev_reopening flag so that we actually close
}
osize = P2ALIGN(osize, (uint64_t)sizeof (vdev_label_t));
+ max_osize = P2ALIGN(max_osize, (uint64_t)sizeof (vdev_label_t));
if (vd->vdev_children == 0) {
if (osize < SPA_MINDEVSIZE) {
}
psize = osize;
asize = osize - (VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE);
+ max_asize = max_osize - (VDEV_LABEL_START_SIZE +
+ VDEV_LABEL_END_SIZE);
} else {
if (vd->vdev_parent != NULL && osize < SPA_MINDEVSIZE -
(VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE)) {
}
psize = 0;
asize = osize;
+ max_asize = max_osize;
}
vd->vdev_psize = psize;
* For testing purposes, a higher ashift can be requested.
*/
vd->vdev_asize = asize;
+ vd->vdev_max_asize = max_asize;
vd->vdev_ashift = MAX(ashift, vd->vdev_ashift);
} else {
/*
VDEV_AUX_BAD_LABEL);
return (EINVAL);
}
+ vd->vdev_max_asize = max_asize;
}
/*
* contents. This needs to be done before vdev_load() so that we don't
* inadvertently do repair I/Os to the wrong device.
*
+ * If 'strict' is false ignore the spa guid check. This is necessary because
+ * if the machine crashed during a re-guid the new guid might have been written
+ * to all of the vdev labels, but not the cached config. The strict check
+ * will be performed when the pool is opened again using the mos config.
+ *
* This function will only return failure if one of the vdevs indicates that it
* has since been destroyed or exported. This is only possible if
* /etc/zfs/zpool.cache was readonly at the time. Otherwise, the vdev state
* will be updated but the function will return 0.
*/
int
-vdev_validate(vdev_t *vd)
+vdev_validate(vdev_t *vd, boolean_t strict)
{
spa_t *spa = vd->vdev_spa;
nvlist_t *label;
int c;
for (c = 0; c < vd->vdev_children; c++)
- if (vdev_validate(vd->vdev_child[c]) != 0)
+ if (vdev_validate(vd->vdev_child[c], strict) != 0)
return (EBADF);
/*
return (0);
}
- if (nvlist_lookup_uint64(label, ZPOOL_CONFIG_POOL_GUID,
- &guid) != 0 || guid != spa_guid(spa)) {
+ if (strict && (nvlist_lookup_uint64(label,
+ ZPOOL_CONFIG_POOL_GUID, &guid) != 0 ||
+ guid != spa_guid(spa))) {
vdev_set_state(vd, B_FALSE, VDEV_STATE_CANT_OPEN,
VDEV_AUX_CORRUPT_DATA);
nvlist_free(label);
!l2arc_vdev_present(vd))
l2arc_add_vdev(spa, vd);
} else {
- (void) vdev_validate(vd);
+ (void) vdev_validate(vd, B_TRUE);
}
/*
if (vd->vdev_aux == NULL && !vdev_is_dead(vd))
spa_async_request(spa, SPA_ASYNC_RESILVER);
- spa_event_notify(spa, vd, ESC_ZFS_VDEV_CLEAR);
+ spa_event_notify(spa, vd, FM_EREPORT_ZFS_DEVICE_CLEAR);
}
/*
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;
+ vs->vs_esize = vd->vdev_max_asize - vd->vdev_asize;
mutex_exit(&vd->vdev_stat_lock);
/*
/*
* Check the vdev configuration to ensure that it's capable of supporting
- * a root pool. Currently, we do not support RAID-Z or partial configuration.
- * In addition, only a single top-level vdev is allowed and none of the leaves
- * can be wholedisks.
+ * a root pool.
*/
boolean_t
vdev_is_bootable(vdev_t *vd)
{
+#if defined(__sun__) || defined(__sun)
+ /*
+ * Currently, we do not support RAID-Z or partial configuration.
+ * In addition, only a single top-level vdev is allowed and none of the
+ * leaves can be wholedisks.
+ */
int c;
if (!vd->vdev_ops->vdev_op_leaf) {
if (!vdev_is_bootable(vd->vdev_child[c]))
return (B_FALSE);
}
+#endif /* __sun__ || __sun */
return (B_TRUE);
}
}
vdev_propagate_state(cvd);
}
+
+#if defined(_KERNEL) && defined(HAVE_SPL)
+EXPORT_SYMBOL(vdev_fault);
+EXPORT_SYMBOL(vdev_degrade);
+EXPORT_SYMBOL(vdev_online);
+EXPORT_SYMBOL(vdev_offline);
+EXPORT_SYMBOL(vdev_clear);
+
+module_param(zfs_scrub_limit, int, 0644);
+MODULE_PARM_DESC(zfs_scrub_limit, "Max scrub/resilver I/O per leaf vdev");
+#endif
git://git.camperquake.de / zfs.git / blobdiff