/*
* 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/zfs_context.h>
{
uint64_t asize = P2ROUNDUP(psize, 1ULL << vd->vdev_top->vdev_ashift);
uint64_t csize;
+ int c;
- for (int c = 0; c < vd->vdev_children; c++) {
+ for (c = 0; c < vd->vdev_children; c++) {
csize = vdev_psize_to_asize(vd->vdev_child[c], psize);
asize = MAX(asize, csize);
}
void
vdev_set_min_asize(vdev_t *vd)
{
+ int c;
vd->vdev_min_asize = vdev_get_min_asize(vd);
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
vdev_set_min_asize(vd->vdev_child[c]);
}
vdev_lookup_by_guid(vdev_t *vd, uint64_t guid)
{
vdev_t *mvd;
+ int c;
if (vd->vdev_guid == guid)
return (vd);
- for (int c = 0; c < vd->vdev_children; c++)
+ for (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;
+ int c;
ASSERT(spa_config_held(pvd->vdev_spa, SCL_ALL, RW_WRITER) == SCL_ALL);
- for (int c = newc = 0; c < oldc; c++)
+ for (c = newc = 0; c < oldc; c++)
if (pvd->vdev_child[c])
newc++;
newchild = kmem_alloc(newc * sizeof (vdev_t *), KM_SLEEP);
- for (int c = newc = 0; c < oldc; c++) {
+ for (c = newc = 0; c < oldc; c++) {
if ((cvd = pvd->vdev_child[c]) != NULL) {
newchild[newc] = cvd;
cvd->vdev_id = newc++;
vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid, vdev_ops_t *ops)
{
vdev_t *vd;
+ int t;
vd = kmem_zalloc(sizeof (vdev_t), KM_SLEEP);
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_state = VDEV_STATE_CLOSED;
vd->vdev_ishole = (ops == &vdev_hole_ops);
+ list_link_init(&vd->vdev_config_dirty_node);
+ list_link_init(&vd->vdev_state_dirty_node);
mutex_init(&vd->vdev_dtl_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&vd->vdev_stat_lock, NULL, MUTEX_DEFAULT, NULL);
mutex_init(&vd->vdev_probe_lock, NULL, MUTEX_DEFAULT, NULL);
- for (int t = 0; t < DTL_TYPES; t++) {
+ for (t = 0; t < DTL_TYPES; t++) {
space_map_create(&vd->vdev_dtl[t], 0, -1ULL, 0,
&vd->vdev_dtl_lock);
}
&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 ||
void
vdev_free(vdev_t *vd)
{
+ int c, t;
spa_t *spa = vd->vdev_spa;
/*
/*
* Free all children.
*/
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
vdev_free(vd->vdev_child[c]);
ASSERT(vd->vdev_child == NULL);
txg_list_destroy(&vd->vdev_dtl_list);
mutex_enter(&vd->vdev_dtl_lock);
- for (int t = 0; t < DTL_TYPES; t++) {
+ for (t = 0; t < DTL_TYPES; t++) {
space_map_unload(&vd->vdev_dtl[t]);
space_map_destroy(&vd->vdev_dtl[t]);
}
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;
static void
vdev_top_update(vdev_t *tvd, vdev_t *vd)
{
+ int c;
+
if (vd == NULL)
return;
vd->vdev_top = tvd;
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
vdev_top_update(tvd, vd->vdev_child[c]);
}
ASSERT(oldc <= newc);
- mspp = kmem_zalloc(newc * sizeof (*mspp), KM_SLEEP);
+ mspp = kmem_zalloc(newc * sizeof (*mspp), KM_SLEEP | KM_NODEBUG);
if (oldc != 0) {
bcopy(vd->vdev_ms, mspp, oldc * sizeof (*mspp));
spa_t *spa = vd->vdev_spa;
vdev_probe_stats_t *vps = NULL;
zio_t *pio;
+ int l;
ASSERT(vd->vdev_ops->vdev_op_leaf);
return (NULL);
}
- for (int l = 1; l < VDEV_LABELS; l++) {
+ for (l = 1; l < VDEV_LABELS; l++) {
zio_nowait(zio_read_phys(pio, vd,
vdev_label_offset(vd->vdev_psize, l,
offsetof(vdev_label_t, vl_pad2)),
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,
strlen(ZVOL_DIR)) == 0)
return (B_TRUE);
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
if (vdev_uses_zvols(vd->vdev_child[c]))
return (B_TRUE);
+#endif
return (B_FALSE);
}
{
taskq_t *tq;
int children = vd->vdev_children;
+ int c;
/*
* in order to handle pools on top of zvols, do the opens
* spa_namespace_lock
*/
if (vdev_uses_zvols(vd)) {
- for (int c = 0; c < children; c++)
+ for (c = 0; c < children; c++)
vd->vdev_child[c]->vdev_open_error =
vdev_open(vd->vdev_child[c]);
return;
tq = taskq_create("vdev_open", children, minclsyspri,
children, children, TASKQ_PREPOPULATE);
- for (int c = 0; c < children; c++)
+ for (c = 0; c < children; c++)
VERIFY(taskq_dispatch(tq, vdev_open_child, vd->vdev_child[c],
- TQ_SLEEP) != NULL);
+ TQ_SLEEP) != 0);
taskq_destroy(tq);
}
uint64_t osize = 0;
uint64_t asize, psize;
uint64_t ashift = 0;
+ int c;
ASSERT(vd->vdev_open_thread == curthread ||
spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL);
if (vd->vdev_ishole || vd->vdev_ops == &vdev_missing_ops)
return (0);
- for (int c = 0; c < vd->vdev_children; c++) {
+ for (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);
nvlist_t *label;
uint64_t guid = 0, top_guid;
uint64_t state;
+ int c;
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
if (vdev_validate(vd->vdev_child[c]) != 0)
return (EBADF);
void
vdev_close(vdev_t *vd)
{
- spa_t *spa = vd->vdev_spa;
vdev_t *pvd = vd->vdev_parent;
+ ASSERTV(spa_t *spa = vd->vdev_spa);
ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL);
vdev_hold(vdev_t *vd)
{
spa_t *spa = vd->vdev_spa;
+ int c;
ASSERT(spa_is_root(spa));
if (spa->spa_state == POOL_STATE_UNINITIALIZED)
return;
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
vdev_hold(vd->vdev_child[c]);
if (vd->vdev_ops->vdev_op_leaf)
void
vdev_rele(vdev_t *vd)
{
- spa_t *spa = vd->vdev_spa;
+ int c;
- ASSERT(spa_is_root(spa));
- for (int c = 0; c < vd->vdev_children; c++)
+ ASSERT(spa_is_root(vd->vdev_spa));
+ for (c = 0; c < vd->vdev_children; c++)
vdev_rele(vd->vdev_child[c]);
if (vd->vdev_ops->vdev_op_leaf)
{
spa_t *spa = vd->vdev_spa;
avl_tree_t reftree;
- int minref;
+ int c, t, minref;
ASSERT(spa_config_held(spa, SCL_ALL, RW_READER) != 0);
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
vdev_dtl_reassess(vd->vdev_child[c], txg,
scrub_txg, scrub_done);
}
mutex_enter(&vd->vdev_dtl_lock);
- for (int t = 0; t < DTL_TYPES; t++) {
+ for (t = 0; t < DTL_TYPES; t++) {
/* account for child's outage in parent's missing map */
int s = (t == DTL_MISSING) ? DTL_OUTAGE: t;
if (t == DTL_SCRUB)
else
minref = vd->vdev_children; /* any kind of mirror */
space_map_ref_create(&reftree);
- for (int c = 0; c < vd->vdev_children; c++) {
+ for (c = 0; c < vd->vdev_children; c++) {
vdev_t *cvd = vd->vdev_child[c];
mutex_enter(&cvd->vdev_dtl_lock);
space_map_ref_add_map(&reftree, &cvd->vdev_dtl[s], 1);
if (vd->vdev_detached) {
if (smo->smo_object != 0) {
- int err = dmu_object_free(mos, smo->smo_object, tx);
- ASSERT3U(err, ==, 0);
+ VERIFY(0 == dmu_object_free(mos, smo->smo_object, tx));
smo->smo_object = 0;
}
dmu_tx_commit(tx);
boolean_t needed = B_FALSE;
uint64_t thismin = UINT64_MAX;
uint64_t thismax = 0;
+ int c;
if (vd->vdev_children == 0) {
mutex_enter(&vd->vdev_dtl_lock);
}
mutex_exit(&vd->vdev_dtl_lock);
} else {
- for (int c = 0; c < vd->vdev_children; c++) {
+ for (c = 0; c < vd->vdev_children; c++) {
vdev_t *cvd = vd->vdev_child[c];
uint64_t cmin, cmax;
void
vdev_load(vdev_t *vd)
{
+ int c;
+
/*
* Recursively load all children.
*/
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
vdev_load(vd->vdev_child[c]);
/*
spa_t *spa = vd->vdev_spa;
objset_t *mos = spa->spa_meta_objset;
dmu_tx_t *tx;
+ int m;
tx = dmu_tx_create_assigned(spa_get_dsl(spa), txg);
}
if (vd->vdev_ms != NULL) {
- for (int m = 0; m < vd->vdev_ms_count; m++) {
+ for (m = 0; m < vd->vdev_ms_count; m++) {
metaslab_t *msp = vd->vdev_ms[m];
if (msp == NULL || msp->ms_smo.smo_object == 0)
ASSERT(!vd->vdev_ishole);
- while (msp = txg_list_remove(&vd->vdev_ms_list, TXG_CLEAN(txg)))
+ while ((msp = txg_list_remove(&vd->vdev_ms_list, TXG_CLEAN(txg))))
metaslab_sync_done(msp, txg);
if (reassess)
vdev_clear(spa_t *spa, vdev_t *vd)
{
vdev_t *rvd = spa->spa_root_vdev;
+ int c;
ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL);
vd->vdev_stat.vs_write_errors = 0;
vd->vdev_stat.vs_checksum_errors = 0;
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
vdev_clear(spa, vd->vdev_child[c]);
/*
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);
}
/*
vdev_get_stats(vdev_t *vd, vdev_stat_t *vs)
{
vdev_t *rvd = vd->vdev_spa->spa_root_vdev;
+ int c, t;
mutex_enter(&vd->vdev_stat_lock);
bcopy(&vd->vdev_stat, vs, sizeof (*vs));
* over all top-level vdevs (i.e. the direct children of the root).
*/
if (vd == rvd) {
- for (int c = 0; c < rvd->vdev_children; c++) {
+ for (c = 0; c < rvd->vdev_children; c++) {
vdev_t *cvd = rvd->vdev_child[c];
vdev_stat_t *cvs = &cvd->vdev_stat;
mutex_enter(&vd->vdev_stat_lock);
- for (int t = 0; t < ZIO_TYPES; t++) {
+ for (t = 0; t < ZIO_TYPES; t++) {
vs->vs_ops[t] += cvs->vs_ops[t];
vs->vs_bytes[t] += cvs->vs_bytes[t];
}
vdev_scan_stat_init(vdev_t *vd)
{
vdev_stat_t *vs = &vd->vdev_stat;
+ int c;
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
vdev_scan_stat_init(vd->vdev_child[c]);
mutex_enter(&vd->vdev_stat_lock);
int degraded = 0, faulted = 0;
int corrupted = 0;
vdev_t *child;
+ int c;
if (vd->vdev_children > 0) {
- for (int c = 0; c < vd->vdev_children; c++) {
+ for (c = 0; c < vd->vdev_children; c++) {
child = vd->vdev_child[c];
/*
/*
* 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) {
char *vdev_type = vd->vdev_ops->vdev_op_type;
return (B_FALSE);
}
- for (int c = 0; c < vd->vdev_children; c++) {
+ for (c = 0; c < vd->vdev_children; c++) {
if (!vdev_is_bootable(vd->vdev_child[c]))
return (B_FALSE);
}
+#endif /* __sun__ || __sun */
return (B_TRUE);
}
void
vdev_load_log_state(vdev_t *nvd, vdev_t *ovd)
{
- spa_t *spa = nvd->vdev_spa;
+ int c;
ASSERT(nvd->vdev_top->vdev_islog);
- ASSERT(spa_config_held(spa, SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL);
+ ASSERT(spa_config_held(nvd->vdev_spa,
+ SCL_STATE_ALL, RW_WRITER) == SCL_STATE_ALL);
ASSERT3U(nvd->vdev_guid, ==, ovd->vdev_guid);
- for (int c = 0; c < nvd->vdev_children; c++)
+ for (c = 0; c < nvd->vdev_children; c++)
vdev_load_log_state(nvd->vdev_child[c], ovd->vdev_child[c]);
if (nvd->vdev_ops->vdev_op_leaf) {
boolean_t
vdev_log_state_valid(vdev_t *vd)
{
+ int c;
+
if (vd->vdev_ops->vdev_op_leaf && !vd->vdev_faulted &&
!vd->vdev_removed)
return (B_TRUE);
- for (int c = 0; c < vd->vdev_children; c++)
+ for (c = 0; c < vd->vdev_children; c++)
if (vdev_log_state_valid(vd->vdev_child[c]))
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