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Illumos 4757, 4913

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4757 ZFS embedded-data block pointers ("zero block compression")
4913 zfs release should not be subject to space checks

Reviewed by: Adam Leventhal <ahl@delphix.com>
Reviewed by: Max Grossman <max.grossman@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Christopher Siden <christopher.siden@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/4757
  https://www.illumos.org/issues/4913
  https://github.com/illumos/illumos-gate/commit/5d7b4d4

Porting notes:

For compatibility with the fastpath code the zio_done() function
needed to be updated.  Because embedded-data block pointers do
not require DVAs to be allocated the associated vdevs will not
be marked and therefore should not be unmarked.

Ported by: Tim Chase <tim@chase2k.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2544
This commit is contained in:
Matthew Ahrens
2014-06-05 13:19:08 -08:00
committed by Brian Behlendorf
parent faf0f58c69
commit 9b67f60560
46 changed files with 1195 additions and 258 deletions
Download Patch File Download Diff File Expand all files Collapse all files
module/zfs/dsl_destroy.c
+3 -2
View File
@@ -546,7 +546,7 @@ kill_blkptr(spa_t *spa, zilog_t *zilog, const blkptr_t *bp,
struct killarg *ka = arg;
dmu_tx_t *tx = ka->tx;
if (BP_IS_HOLE(bp))
if (BP_IS_HOLE(bp) || BP_IS_EMBEDDED(bp))
return (0);
if (zb->zb_level == ZB_ZIL_LEVEL) {
@@ -596,6 +596,7 @@ dsl_destroy_head_check_impl(dsl_dataset_t *ds, int expected_holds)
uint64_t count;
objset_t *mos;
ASSERT(!dsl_dataset_is_snapshot(ds));
if (dsl_dataset_is_snapshot(ds))
return (SET_ERROR(EINVAL));
@@ -708,7 +709,7 @@ dsl_destroy_head_sync_impl(dsl_dataset_t *ds, dmu_tx_t *tx)
ds->ds_prev->ds_phys->ds_num_children == 2 &&
ds->ds_prev->ds_userrefs == 0);
/* Remove our reservation */
/* Remove our reservation. */
if (ds->ds_reserved != 0) {
dsl_dataset_set_refreservation_sync_impl(ds,
(ZPROP_SRC_NONE | ZPROP_SRC_LOCAL | ZPROP_SRC_RECEIVED),