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authorGeorge Wilson <[email protected]>2016-11-05 20:43:56 -0700
committerBrian Behlendorf <[email protected]>2017-03-23 18:20:58 -0700
commit55922e73b4294fc6c3014be27b61201b7962088c (patch)
treedc5d76284e608ca16d81b5b1adb0b4aeb668c8de /module/zfs/spa.c
parent56a6054d553fd7f1cf7d7c86bf4b33951e1d009f (diff)
OpenZFS 3821 - Race in rollback, zil close, and zil flush
Authored by: George Wilson <[email protected]> Reviewed by: Matthew Ahrens <[email protected]> Reviewed by: Dan Kimmel <[email protected]> Reviewed by: Pavel Zakharov <[email protected]> Reviewed by: Andriy Gapon <[email protected]> Approved by: Richard Lowe <[email protected]> Reviewed-by: Brian Behlendorf <[email protected]> Ported-by: George Melikov <[email protected]> OpenZFS-issue: https://www.illumos.org/issues/3821 OpenZFS-commit: https://github.com/openzfs/openzfs/commit/43297f9 Closes #5905
Diffstat (limited to 'module/zfs/spa.c')
-rw-r--r--module/zfs/spa.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/module/zfs/spa.c b/module/zfs/spa.c
index d632d635e..f573fe0d7 100644
--- a/module/zfs/spa.c
+++ b/module/zfs/spa.c
@@ -6749,8 +6749,6 @@ spa_sync(spa_t *spa, uint64_t txg)
spa->spa_config_syncing = NULL;
}
- spa->spa_ubsync = spa->spa_uberblock;
-
dsl_pool_sync_done(dp, txg);
mutex_enter(&spa->spa_alloc_lock);
@@ -6775,6 +6773,13 @@ spa_sync(spa_t *spa, uint64_t txg)
spa->spa_sync_pass = 0;
+ /*
+ * Update the last synced uberblock here. We want to do this at
+ * the end of spa_sync() so that consumers of spa_last_synced_txg()
+ * will be guaranteed that all the processing associated with
+ * that txg has been completed.
+ */
+ spa->spa_ubsync = spa->spa_uberblock;
spa_config_exit(spa, SCL_CONFIG, FTAG);
spa_handle_ignored_writes(spa);