Date: Wed, 4 Mar 2020 04:40:54 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r358602 - stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs Message-ID: <202003040440.0244esOD025450@repo.freebsd.org>
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Author: mav Date: Wed Mar 4 04:40:54 2020 New Revision: 358602 URL: https://svnweb.freebsd.org/changeset/base/358602 Log: MFC r358337: MFZoL: Fix 2 small bugs with cached dsl_scan_phys_t This patch corrects 2 small bugs where scn->scn_phys_cached was not properly updated to match the primary copy when it needed to be. The first resulted in the pause state not being properly updated and the second resulted in the cached version being completely zeroed even if the primary was not. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com> Closes #8010 zfsonlinux/zfs@8cb119e3dc0ac6c90b1517fbadc021b7e9741fc6 Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c ============================================================================== --- stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Wed Mar 4 04:40:35 2020 (r358601) +++ stable/11/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/dsl_scan.c Wed Mar 4 04:40:54 2020 (r358602) @@ -448,7 +448,6 @@ dsl_scan_init(dsl_pool_t *dp, uint64_t txg) scn->scn_maxinflight_bytes = MAX(zfs_scan_vdev_limit * dsl_scan_count_leaves(spa->spa_root_vdev), 1ULL << 20); - bcopy(&scn->scn_phys, &scn->scn_phys_cached, sizeof (scn->scn_phys)); avl_create(&scn->scn_queue, scan_ds_queue_compare, sizeof (scan_ds_t), offsetof(scan_ds_t, sds_node)); avl_create(&scn->scn_prefetch_queue, scan_prefetch_queue_compare, @@ -506,6 +505,8 @@ dsl_scan_init(dsl_pool_t *dp, uint64_t txg) } } + bcopy(&scn->scn_phys, &scn->scn_phys_cached, sizeof (scn->scn_phys)); + /* reload the queue into the in-core state */ if (scn->scn_phys.scn_queue_obj != 0) { zap_cursor_t zc; @@ -928,6 +929,7 @@ dsl_scrub_pause_resume_sync(void *arg, dmu_tx_t *tx) /* can't pause a scrub when there is no in-progress scrub */ spa->spa_scan_pass_scrub_pause = gethrestime_sec(); scn->scn_phys.scn_flags |= DSF_SCRUB_PAUSED; + scn->scn_phys_cached.scn_flags |= DSF_SCRUB_PAUSED; dsl_scan_sync_state(scn, tx, SYNC_CACHED); spa_event_notify(spa, NULL, NULL, ESC_ZFS_SCRUB_PAUSED); } else { @@ -942,6 +944,7 @@ dsl_scrub_pause_resume_sync(void *arg, dmu_tx_t *tx) gethrestime_sec() - spa->spa_scan_pass_scrub_pause; spa->spa_scan_pass_scrub_pause = 0; scn->scn_phys.scn_flags &= ~DSF_SCRUB_PAUSED; + scn->scn_phys_cached.scn_flags &= ~DSF_SCRUB_PAUSED; dsl_scan_sync_state(scn, tx, SYNC_CACHED); } }
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