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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_dataset.c
+1 -2
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@@ -2267,8 +2267,7 @@ dsl_dataset_sync_done(dsl_dataset_t *ds, dmu_tx_t *tx)
dsl_bookmark_sync_done(ds, tx);
multilist_destroy(os->os_synced_dnodes);
os->os_synced_dnodes = NULL;
multilist_destroy(&os->os_synced_dnodes);
if (os->os_encrypted)
os->os_next_write_raw[tx->tx_txg & TXG_MASK] = B_FALSE;