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OpenZFS 8063 - verify that we do not attempt to access inactive txg

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Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Ported-by: George Melikov <mail@gmelikov.ru>

A standard practice in ZFS is to keep track of "per-txg" state. Any of
the 3 active TXG's (open, quiescing, syncing) can have different values
for this state. We should assert that we do not attempt to modify other
(inactive) TXG's.

Porting Notes:
- ASSERTV added to txg_sync_waiting() for unused variable.

OpenZFS-issue: https://www.illumos.org/issues/8063
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/01acb46
Closes #6109
This commit is contained in:
Matthew Ahrens
2017-04-24 09:34:36 -07:00
committed by Brian Behlendorf
parent 335b251ac1
commit 4747a7d3d4
8 changed files with 53 additions and 26 deletions
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module/zfs/vdev.c
+2 -2
View File
@@ -370,9 +370,9 @@ vdev_alloc_common(spa_t *spa, uint_t id, uint64_t guid, vdev_ops_t *ops)
vd->vdev_dtl[t] = range_tree_create(NULL, NULL,
&vd->vdev_dtl_lock);
}
txg_list_create(&vd->vdev_ms_list,
txg_list_create(&vd->vdev_ms_list, spa,
offsetof(struct metaslab, ms_txg_node));
txg_list_create(&vd->vdev_dtl_list,
txg_list_create(&vd->vdev_dtl_list, spa,
offsetof(struct vdev, vdev_dtl_node));
vd->vdev_stat.vs_timestamp = gethrtime();
vdev_queue_init(vd);