Author: pjd
Date: Sat Mar 30 07:29:20 2019
New Revision: 345728
URL: https://svnweb.freebsd.org/changeset/base/345728
Log:
If the autoexpand pool property is turned on and vdev is healthy try to
expand the pool automatically when we detect underlying GEOM provider
size change.
Obtained from: Fudo Security
Tested in: AWS
Modified:
head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c Sat Mar
30 07:24:34 2019 (r345727)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/vdev_geom.c Sat Mar
30 07:29:20 2019 (r345728)
@@ -158,6 +158,29 @@ vdev_geom_attrchanged(struct g_consumer *cp, const cha
}
static void
+vdev_geom_resize(struct g_consumer *cp)
+{
+ struct consumer_priv_t *priv;
+ struct consumer_vdev_elem *elem;
+ spa_t *spa;
+ vdev_t *vd;
+
+ priv = (struct consumer_priv_t *)&cp->private;
+ if (SLIST_EMPTY(priv))
+ return;
+
+ SLIST_FOREACH(elem, priv, elems) {
+ vd = elem->vd;
+ if (vd->vdev_state != VDEV_STATE_HEALTHY)
+ continue;
+ spa = vd->vdev_spa;
+ if (!spa->spa_autoexpand)
+ continue;
+ vdev_online(spa, vd->vdev_guid, ZFS_ONLINE_EXPAND, NULL);
+ }
+}
+
+static void
vdev_geom_orphan(struct g_consumer *cp)
{
struct consumer_priv_t *priv;
@@ -229,6 +252,7 @@ vdev_geom_attach(struct g_provider *pp, vdev_t *vd, bo
gp = g_new_geomf(&zfs_vdev_class, "zfs::vdev");
gp->orphan = vdev_geom_orphan;
gp->attrchanged = vdev_geom_attrchanged;
+ gp->resize = vdev_geom_resize;
cp = g_new_consumer(gp);
error = g_attach(cp, pp);
if (error != 0) {
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