Author: mav
Date: Tue Jan 26 12:37:23 2016
New Revision: 294799
URL: https://svnweb.freebsd.org/changeset/base/294799
Log:
MFV r294798:
6292 exporting a pool while an async destroy is running can leave entries
in the deferred tree
Reviewed by: Paul Dagnelie <p...@delphix.com>
Reviewed by: Matthew Ahrens <mahr...@delphix.com>
Reviewed by: Andriy Gapon <a...@freebsd.org>
Reviewed by: Fabian Keil <f...@fabiankeil.de>
Approved by: Gordon Ross <gordon.r...@nexenta.com>
illumos/illumos-gate@a443cc80c742af740aa82130db840f02b4389365
Modified:
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c
Directory Properties:
head/sys/cddl/contrib/opensolaris/ (props changed)
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Tue Jan
26 12:36:30 2016 (r294798)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Tue Jan
26 12:37:23 2016 (r294799)
@@ -1441,10 +1441,23 @@ dsl_scan_sync(dsl_pool_t *dp, dmu_tx_t *
}
/*
+ * Only process scans in sync pass 1.
+ */
+ if (spa_sync_pass(dp->dp_spa) > 1)
+ return;
+
+ /*
+ * If the spa is shutting down, then stop scanning. This will
+ * ensure that the scan does not dirty any new data during the
+ * shutdown phase.
+ */
+ if (spa_shutting_down(spa))
+ return;
+
+ /*
* If the scan is inactive due to a stalled async destroy, try again.
*/
- if ((!scn->scn_async_stalled && !dsl_scan_active(scn)) ||
- spa_sync_pass(dp->dp_spa) > 1)
+ if (!scn->scn_async_stalled && !dsl_scan_active(scn))
return;
scn->scn_visited_this_txg = 0;
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