Author: markj
Date: Tue May 2 23:29:42 2017
New Revision: 317712
URL: https://svnweb.freebsd.org/changeset/base/317712
Log:
Synchronize unclean mirrors before adding them to a running gmirror.
During gmirror startup, if component mirrors are found to be dirty as is
typical after a system crash, the mirrors are synchronized to the mirror
with highest priority. However if a gmirror starts without all of its
mirrors present, for example because of some transient delays during
tasting, the remaining mirrors must be synchronized before they may become
active.
MFC after: 2 weeks
Sponsored by: Dell EMC Isilon
Modified:
head/sys/geom/mirror/g_mirror.c
Modified: head/sys/geom/mirror/g_mirror.c
==============================================================================
--- head/sys/geom/mirror/g_mirror.c Tue May 2 22:57:27 2017
(r317711)
+++ head/sys/geom/mirror/g_mirror.c Tue May 2 23:29:42 2017
(r317712)
@@ -2225,7 +2225,9 @@ g_mirror_determine_state(struct g_mirror
sc = disk->d_softc;
if (sc->sc_syncid == disk->d_sync.ds_syncid) {
if ((disk->d_flags &
- G_MIRROR_DISK_FLAG_SYNCHRONIZING) == 0) {
+ G_MIRROR_DISK_FLAG_SYNCHRONIZING) == 0 &&
+ (g_mirror_ndisks(sc, G_MIRROR_DISK_STATE_ACTIVE) == 0 ||
+ (disk->d_flags & G_MIRROR_DISK_FLAG_DIRTY) == 0)) {
/* Disk does not need synchronization. */
state = G_MIRROR_DISK_STATE_ACTIVE;
} else {
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