X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Fvdev.c;h=7d6d5278a0db8efd15c8262f57618477b464289e;hb=658a0140f3d27f04fb789f5a0fe8ea00773a210a;hp=06c7d0c8937b5f36c7ae86fe80194f38a0bc0484;hpb=b8d06fca089fae4680c3a552fc55c512bfb02202;p=zfs.git

diff --git a/module/zfs/vdev.c b/module/zfs/vdev.c
index 06c7d0c..7d6d527 100644
--- a/module/zfs/vdev.c
+++ b/module/zfs/vdev.c
@@ -22,7 +22,7 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
- * Copyright (c) 2011 by Delphix. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
  */
 
 #include <sys/zfs_context.h>
@@ -109,7 +109,7 @@ vdev_get_min_asize(vdev_t *vd)
 	vdev_t *pvd = vd->vdev_parent;
 
 	/*
-	 * The our parent is NULL (inactive spare or cache) or is the root,
+	 * If our parent is NULL (inactive spare or cache) or is the root,
 	 * just return our own asize.
 	 */
 	if (pvd == NULL)
@@ -747,6 +747,7 @@ vdev_add_parent(vdev_t *cvd, vdev_ops_t *ops)
 
 	mvd->vdev_asize = cvd->vdev_asize;
 	mvd->vdev_min_asize = cvd->vdev_min_asize;
+	mvd->vdev_max_asize = cvd->vdev_max_asize;
 	mvd->vdev_ashift = cvd->vdev_ashift;
 	mvd->vdev_state = cvd->vdev_state;
 	mvd->vdev_crtxg = cvd->vdev_crtxg;
@@ -903,6 +904,8 @@ vdev_metaslab_fini(vdev_t *vd)
 		kmem_free(vd->vdev_ms, count * sizeof (metaslab_t *));
 		vd->vdev_ms = NULL;
 	}
+
+	ASSERT3U(vd->vdev_pending_fastwrite, ==, 0);
 }
 
 typedef struct vdev_probe_stats {
@@ -1132,7 +1135,8 @@ vdev_open(vdev_t *vd)
 	spa_t *spa = vd->vdev_spa;
 	int error;
 	uint64_t osize = 0;
-	uint64_t asize, psize;
+	uint64_t max_osize = 0;
+	uint64_t asize, max_asize, psize;
 	uint64_t ashift = 0;
 	int c;
 
@@ -1164,7 +1168,7 @@ vdev_open(vdev_t *vd)
 		return (ENXIO);
 	}
 
-	error = vd->vdev_ops->vdev_op_open(vd, &osize, &ashift);
+	error = vd->vdev_ops->vdev_op_open(vd, &osize, &max_osize, &ashift);
 
 	/*
 	 * Reset the vdev_reopening flag so that we actually close
@@ -1222,6 +1226,7 @@ vdev_open(vdev_t *vd)
 	}
 
 	osize = P2ALIGN(osize, (uint64_t)sizeof (vdev_label_t));
+	max_osize = P2ALIGN(max_osize, (uint64_t)sizeof (vdev_label_t));
 
 	if (vd->vdev_children == 0) {
 		if (osize < SPA_MINDEVSIZE) {
@@ -1231,6 +1236,8 @@ vdev_open(vdev_t *vd)
 		}
 		psize = osize;
 		asize = osize - (VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE);
+		max_asize = max_osize - (VDEV_LABEL_START_SIZE +
+		    VDEV_LABEL_END_SIZE);
 	} else {
 		if (vd->vdev_parent != NULL && osize < SPA_MINDEVSIZE -
 		    (VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE)) {
@@ -1240,6 +1247,7 @@ vdev_open(vdev_t *vd)
 		}
 		psize = 0;
 		asize = osize;
+		max_asize = max_osize;
 	}
 
 	vd->vdev_psize = psize;
@@ -1259,6 +1267,7 @@ vdev_open(vdev_t *vd)
 		 * For testing purposes, a higher ashift can be requested.
 		 */
 		vd->vdev_asize = asize;
+		vd->vdev_max_asize = max_asize;
 		vd->vdev_ashift = MAX(ashift, vd->vdev_ashift);
 	} else {
 		/*
@@ -1269,6 +1278,7 @@ vdev_open(vdev_t *vd)
 			    VDEV_AUX_BAD_LABEL);
 			return (EINVAL);
 		}
+		vd->vdev_max_asize = max_asize;
 	}
 
 	/*
@@ -2499,6 +2509,7 @@ vdev_get_stats(vdev_t *vd, vdev_stat_t *vs)
 	vs->vs_rsize = vdev_get_min_asize(vd);
 	if (vd->vdev_ops->vdev_op_leaf)
 		vs->vs_rsize += VDEV_LABEL_START_SIZE + VDEV_LABEL_END_SIZE;
+	vs->vs_esize = vd->vdev_max_asize - vd->vdev_asize;
 	mutex_exit(&vd->vdev_stat_lock);
 
 	/*