19 files changed, 225 insertions, 59 deletions

diff --git a/usr/src/uts/common/dtrace/dtrace.c b/usr/src/uts/common/dtrace/dtrace.c
index 290494147f..a5dd75f944 100644
--- a/usr/src/uts/common/dtrace/dtrace.c
+++ b/usr/src/uts/common/dtrace/dtrace.c
@@ -6120,6 +6120,23 @@ dtrace_probe(dtrace_id_t id, uintptr_t arg0, uintptr_t arg1,
 					continue;
 				}
 
+				/*
+				 * Clear the string space, since there's no
+				 * helper to do it for us.
+				 */
+				if (DTRACE_USTACK_STRSIZE(rec->dtrd_arg) != 0) {
+					int depth = DTRACE_USTACK_NFRAMES(
+					    rec->dtrd_arg);
+					size_t strsize = DTRACE_USTACK_STRSIZE(
+					    rec->dtrd_arg);
+					uint64_t *buf = (uint64_t *)(tomax +
+					    valoffs);
+					void *strspace = &buf[depth + 1];
+
+					dtrace_bzero(strspace,
+					    MIN(depth, strsize));
+				}
+
 				DTRACE_CPUFLAG_SET(CPU_DTRACE_NOFAULT);
 				dtrace_getupcstack((uint64_t *)
 				    (tomax + valoffs),
diff --git a/usr/src/uts/common/fs/hyprlofs/hyprlofs_vnops.c b/usr/src/uts/common/fs/hyprlofs/hyprlofs_vnops.c
index 45b7d4db87..5cff040236 100644
--- a/usr/src/uts/common/fs/hyprlofs/hyprlofs_vnops.c
+++ b/usr/src/uts/common/fs/hyprlofs/hyprlofs_vnops.c
@@ -1275,7 +1275,9 @@ static int
 hyprlofs_seek(vnode_t *vp, offset_t ooff, offset_t *noffp,
     caller_context_t *ct)
 {
-	ASSERT(VTOHLN(vp)->hln_looped == 1);
+	if (VTOHLN(vp)->hln_looped == 0)
+		return ((*noffp < 0 || *noffp > MAXOFFSET_T) ? EINVAL : 0);
+
 	return (VOP_SEEK(REALVP(vp), ooff, noffp, ct));
 }
 
diff --git a/usr/src/uts/common/fs/nfs/nfs4_subr.c b/usr/src/uts/common/fs/nfs/nfs4_subr.c
index edc1602e13..c14117c009 100644
--- a/usr/src/uts/common/fs/nfs/nfs4_subr.c
+++ b/usr/src/uts/common/fs/nfs/nfs4_subr.c
@@ -2110,8 +2110,10 @@ recov_retry:
 			goto out;
 		}
 	}
-	va.va_type = VNON;
-	pva.va_type = VNON;
+
+	pgar.n4g_va.va_type = VNON;
+	gar.n4g_va.va_type = VNON;
+
 	remap_lookup(np, rootvp, RML_ORDINARY, cr,
 	    &newfh, &gar, &newpfh, &pgar, &e);
 	if (nfs4_needs_recovery(&e, FALSE, mi->mi_vfsp)) {
@@ -2137,10 +2139,8 @@ recov_retry:
 		goto out;
 	}
 
-	if (!e.error) {
-		va = gar.n4g_va;
-		pva = pgar.n4g_va;
-	}
+	va = gar.n4g_va;
+	pva = pgar.n4g_va;
 
 	if ((e.error != 0) ||
 	    (va.va_type != VDIR)) {
@@ -2173,6 +2173,13 @@ recov_retry:
 		if (pnp != NULL) {
 			remap_lookup(pnp, rootvp, RML_ORDINARY, cr,
 			    &newpfh, &pgar, NULL, NULL, &e);
+			/*
+			 * This remap_lookup call modifies pgar. The following
+			 * line prevents trouble when checking the va_type of
+			 * pva later in this code.
+			 */
+			pva = pgar.n4g_va;
+
 			if (nfs4_needs_recovery(&e, FALSE,
 			    mi->mi_vfsp)) {
 				if (need_start_op) {
diff --git a/usr/src/uts/common/fs/ufs/lufs.c b/usr/src/uts/common/fs/ufs/lufs.c
index 301bb09c01..43cc78219c 100644
--- a/usr/src/uts/common/fs/ufs/lufs.c
+++ b/usr/src/uts/common/fs/ufs/lufs.c
@@ -1492,7 +1492,7 @@ lufs_init(void)
 
 	_init_top();
 
-	if (&bio_lufs_strategy != NULL)
+	if (bio_lufs_strategy == NULL)
 		bio_lufs_strategy = (void (*) (void *, buf_t *)) lufs_strategy;
 
 	/*
diff --git a/usr/src/uts/common/fs/zfs/spa.c b/usr/src/uts/common/fs/zfs/spa.c
index ed0d0cb36f..a4c61fc947 100644
--- a/usr/src/uts/common/fs/zfs/spa.c
+++ b/usr/src/uts/common/fs/zfs/spa.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.
  */
 
 /*
@@ -167,15 +167,17 @@ spa_prop_add_list(nvlist_t *nvl, zpool_prop_t prop, char *strval,
 static void
 spa_prop_get_config(spa_t *spa, nvlist_t **nvp)
 {
+	vdev_t *rvd = spa->spa_root_vdev;
 	uint64_t size;
 	uint64_t alloc;
+	uint64_t space;
 	uint64_t cap, version;
 	zprop_source_t src = ZPROP_SRC_NONE;
 	spa_config_dirent_t *dp;
 
 	ASSERT(MUTEX_HELD(&spa->spa_props_lock));
 
-	if (spa->spa_root_vdev != NULL) {
+	if (rvd != NULL) {
 		alloc = metaslab_class_get_alloc(spa_normal_class(spa));
 		size = metaslab_class_get_space(spa_normal_class(spa));
 		spa_prop_add_list(*nvp, ZPOOL_PROP_NAME, spa_name(spa), 0, src);
@@ -183,6 +185,15 @@ spa_prop_get_config(spa_t *spa, nvlist_t **nvp)
 		spa_prop_add_list(*nvp, ZPOOL_PROP_ALLOCATED, NULL, alloc, src);
 		spa_prop_add_list(*nvp, ZPOOL_PROP_FREE, NULL,
 		    size - alloc, src);
+
+		space = 0;
+		for (int c = 0; c < rvd->vdev_children; c++) {
+			vdev_t *tvd = rvd->vdev_child[c];
+			space += tvd->vdev_max_asize - tvd->vdev_asize;
+		}
+		spa_prop_add_list(*nvp, ZPOOL_PROP_EXPANDSZ, NULL, space,
+		    src);
+
 		spa_prop_add_list(*nvp, ZPOOL_PROP_READONLY, NULL,
 		    (spa_mode(spa) == FREAD), src);
 
@@ -193,7 +204,7 @@ spa_prop_get_config(spa_t *spa, nvlist_t **nvp)
 		    ddt_get_pool_dedup_ratio(spa), src);
 
 		spa_prop_add_list(*nvp, ZPOOL_PROP_HEALTH, NULL,
-		    spa->spa_root_vdev->vdev_state, src);
+		    rvd->vdev_state, src);
 
 		version = spa_version(spa);
 		if (version == zpool_prop_default_numeric(ZPOOL_PROP_VERSION))
diff --git a/usr/src/uts/common/fs/zfs/sys/vdev_impl.h b/usr/src/uts/common/fs/zfs/sys/vdev_impl.h
index c297ae165c..3a2d7a04d8 100644
--- a/usr/src/uts/common/fs/zfs/sys/vdev_impl.h
+++ b/usr/src/uts/common/fs/zfs/sys/vdev_impl.h
@@ -20,6 +20,7 @@
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
  */
 
 #ifndef _SYS_VDEV_IMPL_H
@@ -55,7 +56,8 @@ typedef struct vdev_cache_entry vdev_cache_entry_t;
 /*
  * Virtual device operations
  */
-typedef int	vdev_open_func_t(vdev_t *vd, uint64_t *size, uint64_t *ashift);
+typedef int	vdev_open_func_t(vdev_t *vd, uint64_t *size, uint64_t *max_size,
+    uint64_t *ashift);
 typedef void	vdev_close_func_t(vdev_t *vd);
 typedef uint64_t vdev_asize_func_t(vdev_t *vd, uint64_t psize);
 typedef int	vdev_io_start_func_t(zio_t *zio);
@@ -119,6 +121,7 @@ struct vdev {
 	uint64_t	vdev_orig_guid;	/* orig. guid prior to remove	*/
 	uint64_t	vdev_asize;	/* allocatable device capacity	*/
 	uint64_t	vdev_min_asize;	/* min acceptable asize		*/
+	uint64_t	vdev_max_asize;	/* max acceptable asize		*/
 	uint64_t	vdev_ashift;	/* block alignment shift	*/
 	uint64_t	vdev_state;	/* see VDEV_STATE_* #defines	*/
 	uint64_t	vdev_prevstate;	/* used when reopening a vdev	*/
diff --git a/usr/src/uts/common/fs/zfs/vdev.c b/usr/src/uts/common/fs/zfs/vdev.c
index 1af113e2e0..6606b1f486 100644
--- a/usr/src/uts/common/fs/zfs/vdev.c
+++ b/usr/src/uts/common/fs/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>
@@ -108,7 +108,7 @@ 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)
@@ -737,6 +737,7 @@ 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;
@@ -1108,7 +1109,8 @@ 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;
 
 	ASSERT(vd->vdev_open_thread == curthread ||
@@ -1139,7 +1141,7 @@ 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
@@ -1197,6 +1199,7 @@ 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) {
@@ -1206,6 +1209,8 @@ 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)) {
@@ -1215,6 +1220,7 @@ vdev_open(vdev_t *vd)
 		}
 		psize = 0;
 		asize = osize;
+		max_asize = max_osize;
 	}
 
 	vd->vdev_psize = psize;
@@ -1234,16 +1240,22 @@ 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 {
 		/*
-		 * Make sure the alignment requirement hasn't increased.
+		 * Detect if the alignment requirement has increased.
+		 * We don't want to make the pool unavailable, just
+		 * issue a warning instead.
 		 */
-		if (ashift > vd->vdev_top->vdev_ashift) {
-			vdev_set_state(vd, B_TRUE, VDEV_STATE_CANT_OPEN,
-			    VDEV_AUX_BAD_LABEL);
-			return (EINVAL);
+		if (ashift > vd->vdev_top->vdev_ashift &&
+		    vd->vdev_ops->vdev_op_leaf) {
+			cmn_err(CE_WARN,
+			    "Disk, '%s', has a block alignment that is "
+			    "larger than the pool's alignment\n",
+			    vd->vdev_path);
 		}
+		vd->vdev_max_asize = max_asize;
 	}
 
 	/*
@@ -2467,6 +2479,7 @@ 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);
 
 	/*
diff --git a/usr/src/uts/common/fs/zfs/vdev_disk.c b/usr/src/uts/common/fs/zfs/vdev_disk.c
index f78580d0f1..49e425929f 100644
--- a/usr/src/uts/common/fs/zfs/vdev_disk.c
+++ b/usr/src/uts/common/fs/zfs/vdev_disk.c
@@ -21,6 +21,7 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright (c) 2011, Joyent, Inc. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
  */
 
 #include <sys/zfs_context.h>
@@ -32,6 +33,7 @@
 #include <sys/fs/zfs.h>
 #include <sys/zio.h>
 #include <sys/sunldi.h>
+#include <sys/efi_partition.h>
 #include <sys/fm/fs/zfs.h>
 
 /*
@@ -104,8 +106,39 @@ vdev_disk_rele(vdev_t *vd)
 	}
 }
 
+static uint64_t
+vdev_disk_get_space(vdev_t *vd, uint64_t capacity, uint_t blksz)
+{
+	ASSERT(vd->vdev_wholedisk);
+
+	vdev_disk_t *dvd = vd->vdev_tsd;
+	dk_efi_t dk_ioc;
+	efi_gpt_t *efi;
+	uint64_t avail_space = 0;
+	int efisize = EFI_LABEL_SIZE * 2;
+
+	dk_ioc.dki_data = kmem_alloc(efisize, KM_SLEEP);
+	dk_ioc.dki_lba = 1;
+	dk_ioc.dki_length = efisize;
+	dk_ioc.dki_data_64 = (uint64_t)(uintptr_t)dk_ioc.dki_data;
+	efi = dk_ioc.dki_data;
+
+	if (ldi_ioctl(dvd->vd_lh, DKIOCGETEFI, (intptr_t)&dk_ioc,
+	    FKIOCTL, kcred, NULL) == 0) {
+		uint64_t efi_altern_lba = LE_64(efi->efi_gpt_AlternateLBA);
+
+		zfs_dbgmsg("vdev %s, capacity %llu, altern lba %llu",
+		    vd->vdev_path, capacity, efi_altern_lba);
+		if (capacity > efi_altern_lba)
+			avail_space = (capacity - efi_altern_lba) * blksz;
+	}
+	kmem_free(dk_ioc.dki_data, efisize);
+	return (avail_space);
+}
+
 static int
-vdev_disk_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift)
+vdev_disk_open(vdev_t *vd, uint64_t *psize, uint64_t *max_psize,
+    uint64_t *ashift)
 {
 	spa_t *spa = vd->vdev_spa;
 	vdev_disk_t *dvd;
@@ -276,16 +309,6 @@ skip_open:
 	}
 
 	/*
-	 * If we own the whole disk, try to enable disk write caching.
-	 * We ignore errors because it's OK if we can't do it.
-	 */
-	if (vd->vdev_wholedisk == 1) {
-		int wce = 1;
-		(void) ldi_ioctl(dvd->vd_lh, DKIOCSETWCE, (intptr_t)&wce,
-		    FKIOCTL, kcred, NULL);
-	}
-
-	/*
 	 * Determine the device's minimum transfer size.
 	 * If the ioctl isn't supported, assume DEV_BSIZE.
 	 */
@@ -295,6 +318,25 @@ skip_open:
 
 	*ashift = highbit(MAX(dkmext.dki_pbsize, SPA_MINBLOCKSIZE)) - 1;
 
+	if (vd->vdev_wholedisk == 1) {
+		uint64_t capacity = dkmext.dki_capacity - 1;
+		uint64_t blksz = dkmext.dki_lbsize;
+		int wce = 1;
+
+		/*
+		 * If we own the whole disk, try to enable disk write caching.
+		 * We ignore errors because it's OK if we can't do it.
+		 */
+		(void) ldi_ioctl(dvd->vd_lh, DKIOCSETWCE, (intptr_t)&wce,
+		    FKIOCTL, kcred, NULL);
+
+		*max_psize = *psize + vdev_disk_get_space(vd, capacity, blksz);
+		zfs_dbgmsg("capacity change: vdev %s, psize %llu, "
+		    "max_psize %llu", vd->vdev_path, *psize, *max_psize);
+	} else {
+		*max_psize = *psize;
+	}
+
 	/*
 	 * Clear the nowritecache bit, so that on a vdev_reopen() we will
 	 * try again.
diff --git a/usr/src/uts/common/fs/zfs/vdev_file.c b/usr/src/uts/common/fs/zfs/vdev_file.c
index 8c22aa5316..043fa51294 100644
--- a/usr/src/uts/common/fs/zfs/vdev_file.c
+++ b/usr/src/uts/common/fs/zfs/vdev_file.c
@@ -20,6 +20,7 @@
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
  */
 
 #include <sys/zfs_context.h>
@@ -47,7 +48,8 @@ vdev_file_rele(vdev_t *vd)
 }
 
 static int
-vdev_file_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift)
+vdev_file_open(vdev_t *vd, uint64_t *psize, uint64_t *max_psize,
+    uint64_t *ashift)
 {
 	vdev_file_t *vf;
 	vnode_t *vp;
@@ -112,7 +114,7 @@ skip_open:
 		return (error);
 	}
 
-	*psize = vattr.va_size;
+	*max_psize = *psize = vattr.va_size;
 	*ashift = SPA_MINBLOCKSHIFT;
 
 	return (0);
diff --git a/usr/src/uts/common/fs/zfs/vdev_mirror.c b/usr/src/uts/common/fs/zfs/vdev_mirror.c
index 698c0275d3..a28ca3e396 100644
--- a/usr/src/uts/common/fs/zfs/vdev_mirror.c
+++ b/usr/src/uts/common/fs/zfs/vdev_mirror.c
@@ -23,6 +23,10 @@
  * Use is subject to license terms.
  */
 
+/*
+ * Copyright (c) 2012 by Delphix. All rights reserved.
+ */
+
 #include <sys/zfs_context.h>
 #include <sys/spa.h>
 #include <sys/vdev_impl.h>
@@ -127,7 +131,8 @@ vdev_mirror_map_alloc(zio_t *zio)
 }
 
 static int
-vdev_mirror_open(vdev_t *vd, uint64_t *asize, uint64_t *ashift)
+vdev_mirror_open(vdev_t *vd, uint64_t *asize, uint64_t *max_asize,
+    uint64_t *ashift)
 {
 	int numerrors = 0;
 	int lasterror = 0;
@@ -149,6 +154,7 @@ vdev_mirror_open(vdev_t *vd, uint64_t *asize, uint64_t *ashift)
 		}
 
 		*asize = MIN(*asize - 1, cvd->vdev_asize - 1) + 1;
+		*max_asize = MIN(*max_asize - 1, cvd->vdev_max_asize - 1) + 1;
 		*ashift = MAX(*ashift, cvd->vdev_ashift);
 	}
 
diff --git a/usr/src/uts/common/fs/zfs/vdev_missing.c b/usr/src/uts/common/fs/zfs/vdev_missing.c
index 6a5588d592..3bd8c90e04 100644
--- a/usr/src/uts/common/fs/zfs/vdev_missing.c
+++ b/usr/src/uts/common/fs/zfs/vdev_missing.c
@@ -24,6 +24,10 @@
  */
 
 /*
+ * Copyright (c) 2012 by Delphix. All rights reserved.
+ */
+
+/*
  * The 'missing' vdev is a special vdev type used only during import.  It
  * signifies a placeholder in the root vdev for some vdev that we know is
  * missing.  We pass it down to the kernel to allow the rest of the
@@ -40,7 +44,8 @@
 
 /* ARGSUSED */
 static int
-vdev_missing_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift)
+vdev_missing_open(vdev_t *vd, uint64_t *psize, uint64_t *max_psize,
+    uint64_t *ashift)
 {
 	/*
 	 * Really this should just fail.  But then the root vdev will be in the
@@ -49,6 +54,7 @@ vdev_missing_open(vdev_t *vd, uint64_t *psize, uint64_t *ashift)
 	 * will fail the GUID sum check before ever trying to open the pool.
 	 */
 	*psize = 0;
+	*max_psize = 0;
 	*ashift = 0;
 	return (0);
 }
diff --git a/usr/src/uts/common/fs/zfs/vdev_raidz.c b/usr/src/uts/common/fs/zfs/vdev_raidz.c
index 6094e01876..3ac3d3b167 100644
--- a/usr/src/uts/common/fs/zfs/vdev_raidz.c
+++ b/usr/src/uts/common/fs/zfs/vdev_raidz.c
@@ -22,6 +22,7 @@
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2011 Joyent, Inc. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
  */
 
 #include <sys/zfs_context.h>
@@ -1445,7 +1446,8 @@ vdev_raidz_reconstruct(raidz_map_t *rm, int *t, int nt)
 }
 
 static int
-vdev_raidz_open(vdev_t *vd, uint64_t *asize, uint64_t *ashift)
+vdev_raidz_open(vdev_t *vd, uint64_t *asize, uint64_t *max_asize,
+    uint64_t *ashift)
 {
 	vdev_t *cvd;
 	uint64_t nparity = vd->vdev_nparity;
@@ -1473,10 +1475,12 @@ vdev_raidz_open(vdev_t *vd, uint64_t *asize, uint64_t *ashift)
 		}
 
 		*asize = MIN(*asize - 1, cvd->vdev_asize - 1) + 1;
+		*max_asize = MIN(*max_asize - 1, cvd->vdev_max_asize - 1) + 1;
 		*ashift = MAX(*ashift, cvd->vdev_ashift);
 	}
 
 	*asize *= vd->vdev_children;
+	*max_asize *= vd->vdev_children;
 
 	if (numerrors > nparity) {
 		vd->vdev_stat.vs_aux = VDEV_AUX_NO_REPLICAS;
diff --git a/usr/src/uts/common/fs/zfs/vdev_root.c b/usr/src/uts/common/fs/zfs/vdev_root.c
index 879f78f3a5..1abc79d330 100644
--- a/usr/src/uts/common/fs/zfs/vdev_root.c
+++ b/usr/src/uts/common/fs/zfs/vdev_root.c
@@ -23,6 +23,10 @@
  * Use is subject to license terms.
  */
 
+/*
+ * Copyright (c) 2012 by Delphix. All rights reserved.
+ */
+
 #include <sys/zfs_context.h>
 #include <sys/spa.h>
 #include <sys/vdev_impl.h>
@@ -50,7 +54,8 @@ too_many_errors(vdev_t *vd, int numerrors)
 }
 
 static int
-vdev_root_open(vdev_t *vd, uint64_t *asize, uint64_t *ashift)
+vdev_root_open(vdev_t *vd, uint64_t *asize, uint64_t *max_asize,
+    uint64_t *ashift)
 {
 	int lasterror = 0;
 	int numerrors = 0;
@@ -77,6 +82,7 @@ vdev_root_open(vdev_t *vd, uint64_t *asize, uint64_t *ashift)
 	}
 
 	*asize = 0;
+	*max_asize = 0;
 	*ashift = 0;
 
 	return (0);
diff --git a/usr/src/uts/common/fs/zfs/zfs_ioctl.c b/usr/src/uts/common/fs/zfs/zfs_ioctl.c
index baffc223a3..f2bf4fc98f 100644
--- a/usr/src/uts/common/fs/zfs/zfs_ioctl.c
+++ b/usr/src/uts/common/fs/zfs/zfs_ioctl.c
@@ -22,7 +22,7 @@
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
  * Portions Copyright 2011 Martin Matuska
  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
- * Copyright (c) 2011 by Delphix. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
  * Copyright (c) 2012, Joyent, Inc. All rights reserved.
  */
 
@@ -4066,6 +4066,22 @@ zfs_ioc_clear(zfs_cmd_t *zc)
 	return (error);
 }
 
+static int
+zfs_ioc_pool_reopen(zfs_cmd_t *zc)
+{
+	spa_t *spa;
+	int error;
+
+	error = spa_open(zc->zc_name, &spa, FTAG);
+	if (error)
+		return (error);
+
+	spa_vdev_state_enter(spa, SCL_NONE);
+	vdev_reopen(spa->spa_root_vdev);
+	(void) spa_vdev_state_exit(spa, NULL, 0);
+	spa_close(spa, FTAG);
+	return (0);
+}
 /*
  * inputs:
  * zc_name	name of filesystem
@@ -4910,7 +4926,9 @@ static zfs_ioc_vec_t zfs_ioc_vec[] = {
 	{ zfs_ioc_destroy_snaps_nvl, zfs_secpolicy_destroy_recursive,
 	    DATASET_NAME, B_TRUE, POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
 	{ zfs_ioc_pool_reguid, zfs_secpolicy_config, POOL_NAME, B_TRUE,
-	    POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY }
+	    POOL_CHECK_SUSPENDED | POOL_CHECK_READONLY },
+	{ zfs_ioc_pool_reopen, zfs_secpolicy_config, POOL_NAME, B_TRUE,
+	    POOL_CHECK_SUSPENDED },
 };
 
 int
diff --git a/usr/src/uts/common/gssapi/Makefile b/usr/src/uts/common/gssapi/Makefile
index 1b691b92cb..0f02a03623 100644
--- a/usr/src/uts/common/gssapi/Makefile
+++ b/usr/src/uts/common/gssapi/Makefile
@@ -23,7 +23,7 @@
 # Copyright (c) 1989,1997,1999 by Sun Microsystems, Inc.
 # All rights reserved.
 #
-#pragma ident	"%Z%%M%	%I%	%E% SMI"
+# Copyright 2012 Milan Jurik. All rights reserved.
 #
 # uts/common/gssd/Makefile
 #
@@ -64,7 +64,7 @@ $(GSSDDIRS):
 
 gssd_prot.h:	gssd.x
 	$(RM) $@
-	$(RPCGEN) -M -h gssd.x > $@
+	$(RPCGEN) -CM -h gssd.x > $@
 
 gssd_prot.c:   gssd.x
 	$(RM) $@
diff --git a/usr/src/uts/common/io/scsi/targets/sd.c b/usr/src/uts/common/io/scsi/targets/sd.c
index 4ab44d9eb3..8ec8672eb9 100644
--- a/usr/src/uts/common/io/scsi/targets/sd.c
+++ b/usr/src/uts/common/io/scsi/targets/sd.c
@@ -4224,6 +4224,18 @@ sd_set_properties(struct sd_lun *un, char *name, char *value)
 		    "RMW type set to %d\n", un->un_f_rmw_type);
 	}
 
+	if (strcasecmp(name, "physical-block-size") == 0) {
+		if (ddi_strtol(value, &endptr, 0, &val) == 0 &&
+		    ISP2(val) && val >= un->un_tgt_blocksize &&
+		    val >= un->un_sys_blocksize) {
+			un->un_phy_blocksize = val;
+		} else {
+			goto value_invalid;
+		}
+		SD_INFO(SD_LOG_ATTACH_DETACH, un, "sd_set_properties: "
+		    "physical block size set to %d\n", un->un_phy_blocksize);
+	}
+
 	/*
 	 * Validate the throttle values.
 	 * If any of the numbers are invalid, set everything to defaults.
@@ -7624,6 +7636,13 @@ sd_unit_attach(dev_info_t *devi)
 	un->un_f_mmc_gesn_polling = TRUE;
 
 	/*
+	 * physical sector size defaults to DEV_BSIZE currently. We can
+	 * override this value via the driver configuration file so we must
+	 * set it before calling sd_read_unit_properties().
+	 */
+	un->un_phy_blocksize = DEV_BSIZE;
+
+	/*
 	 * Retrieve the properties from the static driver table or the driver
 	 * configuration file (.conf) for this unit and update the soft state
 	 * for the device as needed for the indicated properties.
@@ -7668,11 +7687,6 @@ sd_unit_attach(dev_info_t *devi)
 	un->un_blockcount = 0;
 
 	/*
-	 * physical sector size default to DEV_BSIZE currently.
-	 */
-	un->un_phy_blocksize = DEV_BSIZE;
-
-	/*
 	 * Set up the per-instance info needed to determine the correct
 	 * CDBs and other info for issuing commands to the target.
 	 */
@@ -23482,10 +23496,17 @@ sd_get_media_info_com(dev_t dev, uint_t *dki_media_type, uint_t *dki_lbsize,
 	 * Now read the capacity so we can provide the lbasize,
 	 * pbsize and capacity.
 	 */
-	if (dki_pbsize && un->un_f_descr_format_supported)
+	if (dki_pbsize && un->un_f_descr_format_supported) {
 		rval = sd_send_scsi_READ_CAPACITY_16(ssc, &capacity, &lbasize,
 		    &pbsize, SD_PATH_DIRECT);
 
+		/*
+		 * Override the physical blocksize if the instance already
+		 * has a larger value.
+		 */
+		pbsize = MAX(pbsize, un->un_phy_blocksize);
+	}
+
 	if (dki_pbsize == NULL || rval != 0 ||
 	    !un->un_f_descr_format_supported) {
 		rval = sd_send_scsi_READ_CAPACITY(ssc, &capacity, &lbasize,
@@ -31747,7 +31768,11 @@ sd_check_emulation_mode(sd_ssc_t *ssc)
 		} else {
 			if (!ISP2(pbsize % DEV_BSIZE) || pbsize == 0) {
 				un->un_phy_blocksize = DEV_BSIZE;
-			} else {
+			} else if (pbsize > un->un_phy_blocksize) {
+				/*
+				 * Don't reset the physical blocksize
+				 * unless we've detected a larger value.
+				 */
 				un->un_phy_blocksize = pbsize;
 			}
 		}
diff --git a/usr/src/uts/common/sys/fs/zfs.h b/usr/src/uts/common/sys/fs/zfs.h
index baa201d7a5..a523201954 100644
--- a/usr/src/uts/common/sys/fs/zfs.h
+++ b/usr/src/uts/common/sys/fs/zfs.h
@@ -21,7 +21,7 @@
 
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2011 by Delphix. All rights reserved.
+ * Copyright (c) 2012 by Delphix. All rights reserved.
  * Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  */
 
@@ -167,6 +167,7 @@ typedef enum {
 	ZPOOL_PROP_ALLOCATED,
 	ZPOOL_PROP_READONLY,
 	ZPOOL_PROP_COMMENT,
+	ZPOOL_PROP_EXPANDSZ,
 	ZPOOL_NUM_PROPS
 } zpool_prop_t;
 
@@ -672,6 +673,7 @@ typedef struct vdev_stat {
 	uint64_t	vs_space;		/* total capacity	*/
 	uint64_t	vs_dspace;		/* deflated capacity	*/
 	uint64_t	vs_rsize;		/* replaceable dev size */
+	uint64_t	vs_esize;		/* expandable dev size */
 	uint64_t	vs_ops[ZIO_TYPES];	/* operation count	*/
 	uint64_t	vs_bytes[ZIO_TYPES];	/* bytes read/written	*/
 	uint64_t	vs_read_errors;		/* read errors		*/
@@ -788,7 +790,8 @@ typedef enum zfs_ioc {
 	ZFS_IOC_SPACE_WRITTEN,
 	ZFS_IOC_SPACE_SNAPS,
 	ZFS_IOC_DESTROY_SNAPS_NVL,
-	ZFS_IOC_POOL_REGUID
+	ZFS_IOC_POOL_REGUID,
+	ZFS_IOC_POOL_REOPEN
 } zfs_ioc_t;
 
 /*
diff --git a/usr/src/uts/common/sys/ib/mgt/ibcm/ibcm_impl.h b/usr/src/uts/common/sys/ib/mgt/ibcm/ibcm_impl.h
index 2fb6454396..e7751760bd 100644
--- a/usr/src/uts/common/sys/ib/mgt/ibcm/ibcm_impl.h
+++ b/usr/src/uts/common/sys/ib/mgt/ibcm/ibcm_impl.h
@@ -2170,15 +2170,15 @@ void	ibcm_dump_noderec(sa_node_record_t *);
 
 void	ibcm_query_classport_info(ibt_channel_hdl_t channel);
 
-#define	IBCM_DUMP_RAW_MSG	ibcm_dump_raw_message
-#define	IBCM_DUMP_SERVICE_REC	ibcm_dump_srvrec
-#define	IBCM_DUMP_PATH_REC	ibcm_dump_pathrec
-#define	IBCM_DUMP_NODE_REC	ibcm_dump_noderec
+#define	IBCM_DUMP_RAW_MSG(x)		ibcm_dump_raw_message(x)
+#define	IBCM_DUMP_SERVICE_REC(x)	ibcm_dump_srvrec(x)
+#define	IBCM_DUMP_PATH_REC(x)		ibcm_dump_pathrec(x)
+#define	IBCM_DUMP_NODE_REC(x)		ibcm_dump_noderec(x)
 #else
-#define	IBCM_DUMP_RAW_MSG	0 &&
-#define	IBCM_DUMP_SERVICE_REC	0 &&
-#define	IBCM_DUMP_PATH_REC	0 &&
-#define	IBCM_DUMP_NODE_REC	0 &&
+#define	IBCM_DUMP_RAW_MSG(x)
+#define	IBCM_DUMP_SERVICE_REC(x)
+#define	IBCM_DUMP_PATH_REC(x)
+#define	IBCM_DUMP_NODE_REC(x)
 #endif
 
 ibt_status_t ibcm_ibmf_analyze_error(int ibmf_status);
diff --git a/usr/src/uts/common/sys/ucode.h b/usr/src/uts/common/sys/ucode.h
index e4f01bfeb0..d96c354c45 100644
--- a/usr/src/uts/common/sys/ucode.h
+++ b/usr/src/uts/common/sys/ucode.h
@@ -116,6 +116,7 @@ typedef struct ucode_file_amd {
 	uint8_t uf_resv[896];
 	uint8_t uf_code_present;
 	uint8_t uf_code[191];
+	uint8_t uf_encr[2048];
 #else
 	uint8_t *ucodep;
 	uint32_t usize;