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Re-embed multilist_t storage

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This commit partially reverts changes to multilists in PR 7968
(multi-threaded spa-sync()) and adds some cache line alignments to
separate read-only multilists and heavily modified refcount's to different
cache lines.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-by: iXsystems, Inc.
Closes #12158
This commit is contained in:
Alexander Motin
2021-06-10 12:42:31 -04:00
committed by GitHub
parent eec5ba113e
commit ffdf019cb3
12 changed files with 99 additions and 104 deletions
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module/zfs/dsl_pool.c
+1 -2
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@@ -568,8 +568,7 @@ dsl_pool_sync_mos(dsl_pool_t *dp, dmu_tx_t *tx)
VERIFY0(zio_wait(zio));
dmu_objset_sync_done(dp->dp_meta_objset, tx);
taskq_wait(dp->dp_sync_taskq);
multilist_destroy(dp->dp_meta_objset->os_synced_dnodes);
dp->dp_meta_objset->os_synced_dnodes = NULL;
multilist_destroy(&dp->dp_meta_objset->os_synced_dnodes);
dprintf_bp(&dp->dp_meta_rootbp, "meta objset rootbp is %s", "");
spa_set_rootblkptr(dp->dp_spa, &dp->dp_meta_rootbp);