Date: Tue, 26 Jan 2016 12:37:23 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r294799 - head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <201601261237.u0QCbN1Y012129@repo.freebsd.org>
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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 <pcd@delphix.com> Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed by: Andriy Gapon <avg@FreeBSD.org> Reviewed by: Fabian Keil <fk@fabiankeil.de> Approved by: Gordon Ross <gordon.ross@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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