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OpenZFS 7104 - increase indirect block size

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Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

OpenZFS-issue: https://www.illumos.org/issues/7104
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/4b5c8e9
Closes #5679
This commit is contained in:
Matthew Ahrens
2016-07-13 16:48:01 -07:00
committed by Brian Behlendorf
parent df7eeccc75
commit d7958b4cda
52 changed files with 214 additions and 153 deletions
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module/zfs/dmu_objset.c
+9 -3
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@@ -859,11 +859,17 @@ dmu_objset_create_impl(spa_t *spa, dsl_dataset_t *ds, blkptr_t *bp,
/*
* Determine the number of levels necessary for the meta-dnode
* to contain DN_MAX_OBJECT dnodes.
* to contain DN_MAX_OBJECT dnodes. Note that in order to
* ensure that we do not overflow 64 bits, there has to be
* a nlevels that gives us a number of blocks > DN_MAX_OBJECT
* but < 2^64. Therefore,
* (mdn->dn_indblkshift - SPA_BLKPTRSHIFT) (10) must be
* less than (64 - log2(DN_MAX_OBJECT)) (16).
*/
while ((uint64_t)mdn->dn_nblkptr << (mdn->dn_datablkshift +
while ((uint64_t)mdn->dn_nblkptr <<
(mdn->dn_datablkshift - DNODE_SHIFT +
(levels - 1) * (mdn->dn_indblkshift - SPA_BLKPTRSHIFT)) <
DN_MAX_OBJECT * sizeof (dnode_phys_t))
DN_MAX_OBJECT)
levels++;
mdn->dn_next_nlevels[tx->tx_txg & TXG_MASK] =