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Illumos 4171, 4172

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4171 clean up spa_feature_*() interfaces
4172 implement extensible_dataset feature for use by other zpool features

Reviewed by: Max Grossman <max.grossman@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Approved by: Garrett D'Amore <garrett@damore.org>a

References:
  https://www.illumos.org/issues/4171
  https://www.illumos.org/issues/4172
  https://github.com/illumos/illumos-gate/commit/2acef22

Ported-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2528
This commit is contained in:
Matthew Ahrens
2013-10-08 09:13:05 -08:00
committed by Brian Behlendorf
parent 62b6939308
commit fa86b5dbb6
27 changed files with 369 additions and 276 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/dmu_object.c
+55
View File
@@ -27,6 +27,8 @@
#include <sys/dmu_objset.h>
#include <sys/dmu_tx.h>
#include <sys/dnode.h>
#include <sys/zap.h>
#include <sys/zfeature.h>
uint64_t
dmu_object_alloc(objset_t *os, dmu_object_type_t ot, int blocksize,
@@ -196,10 +198,63 @@ dmu_object_next(objset_t *os, uint64_t *objectp, boolean_t hole, uint64_t txg)
return (error);
}
/*
* Turn this object from old_type into DMU_OTN_ZAP_METADATA, and bump the
* refcount on SPA_FEATURE_EXTENSIBLE_DATASET.
*
* Only for use from syncing context, on MOS objects.
*/
void
dmu_object_zapify(objset_t *mos, uint64_t object, dmu_object_type_t old_type,
dmu_tx_t *tx)
{
dnode_t *dn;
ASSERT(dmu_tx_is_syncing(tx));
VERIFY0(dnode_hold(mos, object, FTAG, &dn));
if (dn->dn_type == DMU_OTN_ZAP_METADATA) {
dnode_rele(dn, FTAG);
return;
}
ASSERT3U(dn->dn_type, ==, old_type);
ASSERT0(dn->dn_maxblkid);
dn->dn_next_type[tx->tx_txg & TXG_MASK] = dn->dn_type =
DMU_OTN_ZAP_METADATA;
dnode_setdirty(dn, tx);
dnode_rele(dn, FTAG);
mzap_create_impl(mos, object, 0, 0, tx);
spa_feature_incr(dmu_objset_spa(mos),
SPA_FEATURE_EXTENSIBLE_DATASET, tx);
}
void
dmu_object_free_zapified(objset_t *mos, uint64_t object, dmu_tx_t *tx)
{
dnode_t *dn;
dmu_object_type_t t;
ASSERT(dmu_tx_is_syncing(tx));
VERIFY0(dnode_hold(mos, object, FTAG, &dn));
t = dn->dn_type;
dnode_rele(dn, FTAG);
if (t == DMU_OTN_ZAP_METADATA) {
spa_feature_decr(dmu_objset_spa(mos),
SPA_FEATURE_EXTENSIBLE_DATASET, tx);
}
VERIFY0(dmu_object_free(mos, object, tx));
}
#if defined(_KERNEL) && defined(HAVE_SPL)
EXPORT_SYMBOL(dmu_object_alloc);
EXPORT_SYMBOL(dmu_object_claim);
EXPORT_SYMBOL(dmu_object_reclaim);
EXPORT_SYMBOL(dmu_object_free);
EXPORT_SYMBOL(dmu_object_next);
EXPORT_SYMBOL(dmu_object_zapify);
EXPORT_SYMBOL(dmu_object_free_zapified);
#endif