Merge commit 'refs/top-bases/linux-configure-branch' into linux-configure-branch

cmd/zfs/zfs_main.c

@@ -554,6 +554,7 @@ zfs_do_clone(int argc, char **argv)
 	ret = zfs_clone(zhp, argv[1], props);
 
 	/* create the mountpoint if necessary */
+#ifdef HAVE_ZPL
 	if (ret == 0) {
 		zfs_handle_t *clone;
 
@@ -564,6 +565,7 @@ zfs_do_clone(int argc, char **argv)
 			zfs_close(clone);
 		}
 	}
+#endif /* HAVE_ZPL */
 
 	zfs_close(zhp);
 	nvlist_free(props);
@@ -761,6 +763,7 @@ zfs_do_create(int argc, char **argv)
 	 * in fact created, even if we failed to mount or share it.
 	 */
 	ret = 0;
+#ifdef HAVE_ZPL
 	if (canmount == ZFS_CANMOUNT_ON) {
 		if (zfs_mount(zhp, NULL, 0) != 0) {
 			(void) fprintf(stderr, gettext("filesystem "
@@ -772,6 +775,7 @@ zfs_do_create(int argc, char **argv)
 			ret = 1;
 		}
 	}
+#endif /* HAVE_ZPL */
 
 error:
 	if (zhp)
@@ -2787,6 +2791,7 @@ typedef struct get_all_cbdata {
 #define	SPINNER_TIME 3		/* seconds */
 #define	MOUNT_TIME 5		/* seconds */
 
+#ifdef HAVE_ZPL
 static int
 get_one_dataset(zfs_handle_t *zhp, void *data)
 {
@@ -3338,6 +3343,7 @@ share_mount(int op, int argc, char **argv)
 
 	return (ret);
 }
+#endif  /* HAVE_ZPL */
 
 /*
  * zfs mount -a [nfs | iscsi]
@@ -3348,7 +3354,11 @@ share_mount(int op, int argc, char **argv)
 static int
 zfs_do_mount(int argc, char **argv)
 {
+#ifdef HAVE_ZPL
 	return (share_mount(OP_MOUNT, argc, argv));
+#else
+	return ENOSYS;
+#endif  /* HAVE_ZPL */
 }
 
 /*
@@ -3360,9 +3370,14 @@ zfs_do_mount(int argc, char **argv)
 static int
 zfs_do_share(int argc, char **argv)
 {
+#ifdef HAVE_ZPL
 	return (share_mount(OP_SHARE, argc, argv));
+#else
+	return ENOSYS;
+#endif  /* HAVE_ZPL */
 }
 
+#ifdef HAVE_ZPL
 typedef struct unshare_unmount_node {
 	zfs_handle_t	*un_zhp;
 	char		*un_mountp;
@@ -3815,6 +3830,7 @@ unshare_unmount(int op, int argc, char **argv)
 
 	return (ret);
 }
+#endif  /* HAVE_ZPL */
 
 /*
  * zfs unmount -a
@@ -3825,7 +3841,11 @@ unshare_unmount(int op, int argc, char **argv)
 static int
 zfs_do_unmount(int argc, char **argv)
 {
+#ifdef HAVE_ZPL
 	return (unshare_unmount(OP_MOUNT, argc, argv));
+#else
+	return ENOSYS;
+#endif  /* HAVE_ZPL */
 }
 
 /*
@@ -3837,7 +3857,11 @@ zfs_do_unmount(int argc, char **argv)
 static int
 zfs_do_unshare(int argc, char **argv)
 {
+#ifdef HAVE_ZPL
 	return (unshare_unmount(OP_SHARE, argc, argv));
+#else
+	return ENOSYS;
+#endif  /* HAVE_ZPL */
 }
 
 /* ARGSUSED */
@@ -3853,6 +3877,7 @@ zfs_do_python(int argc, char **argv)
  * Called when invoked as /etc/fs/zfs/mount.  Do the mount if the mountpoint is
  * 'legacy'.  Otherwise, complain that use should be using 'zfs mount'.
  */
+#ifdef HAVE_ZPL
 static int
 manual_mount(int argc, char **argv)
 {
@@ -3983,6 +4008,7 @@ manual_unmount(int argc, char **argv)
 
 	return (unshare_unmount_path(OP_MOUNT, argv[0], flags, B_TRUE));
 }
+#endif /* HAVE_ZPL */
 
 static int
 volcheck(zpool_handle_t *zhp, void *data)
@@ -4027,7 +4053,9 @@ main(int argc, char **argv)
 {
 	int ret;
 	int i = 0;
+#ifdef HAVE_ZPL
 	char *progname;
+#endif
 	char *cmdname;
 
 	(void) setlocale(LC_ALL, "");
@@ -4052,6 +4080,7 @@ main(int argc, char **argv)
 		return (1);
 	}
 
+#ifdef HAVE_ZPL
 	/*
 	 * This command also doubles as the /etc/fs mount and unmount program.
 	 * Determine if we should take this behavior based on argv[0].
@@ -4062,6 +4091,9 @@ main(int argc, char **argv)
 	} else if (strcmp(progname, "umount") == 0) {
 		ret = manual_unmount(argc, argv);
 	} else {
+#else
+	{
+#endif /* HAVE_ZPL */
 		/*
 		 * Make sure the user has specified some command.
 		 */

cmd/zinject/zinject.c

@@ -751,17 +751,20 @@ main(int argc, char **argv)
 	if (dataset[0] != '\0' && domount) {
 		if ((zhp = zfs_open(g_zfs, dataset, ZFS_TYPE_DATASET)) == NULL)
 			return (1);
-
+#ifdef HAVE_ZPL
 		if (zfs_unmount(zhp, NULL, 0) != 0)
 			return (1);
+#endif /* HAVE_ZPL */
 	}
 
 	record.zi_error = error;
 
 	ret = register_handler(pool, flags, &record, quiet);
 
+#ifdef HAVE_ZPL
 	if (dataset[0] != '\0' && domount)
 		ret = (zfs_mount(zhp, NULL, 0) != 0);
+#endif /* HAVE_ZPL */
 
 	libzfs_fini(g_zfs);
 

cmd/zpool/zpool_main.c

@@ -696,7 +696,9 @@ zpool_do_create(int argc, char **argv)
 	    (strcmp(mountpoint, ZFS_MOUNTPOINT_LEGACY) != 0 &&
 	    strcmp(mountpoint, ZFS_MOUNTPOINT_NONE) != 0)) {
 		char buf[MAXPATHLEN];
+#ifdef HAVE_ZPL
 		DIR *dirp;
+#endif
 
 		if (mountpoint && mountpoint[0] != '/') {
 			(void) fprintf(stderr, gettext("invalid mountpoint "
@@ -721,6 +723,7 @@ zpool_do_create(int argc, char **argv)
 				    mountpoint);
 		}
 
+#ifdef HAVE_ZPL
 		if ((dirp = opendir(buf)) == NULL && errno != ENOENT) {
 			(void) fprintf(stderr, gettext("mountpoint '%s' : "
 			    "%s\n"), buf, strerror(errno));
@@ -743,6 +746,7 @@ zpool_do_create(int argc, char **argv)
 				goto errout;
 			}
 		}
+#endif /* HAVE_ZPL */
 	}
 
 	if (dryrun) {
@@ -773,8 +777,12 @@ zpool_do_create(int argc, char **argv)
 					    zfs_prop_to_name(
 					    ZFS_PROP_MOUNTPOINT),
 					    mountpoint) == 0);
+#ifdef HAVE_ZPL
 				if (zfs_mount(pool, NULL, 0) == 0)
 					ret = zfs_shareall(pool);
+#else
+				ret = 0;
+#endif /* HAVE_ZPL */
 				zfs_close(pool);
 			}
 		} else if (libzfs_errno(g_zfs) == EZFS_INVALIDNAME) {
@@ -1531,11 +1539,13 @@ do_import(nvlist_t *config, const char *newname, const char *mntopts,
 	if ((zhp = zpool_open_canfail(g_zfs, name)) == NULL)
 		return (1);
 
+#if HAVE_ZPL
 	if (zpool_get_state(zhp) != POOL_STATE_UNAVAIL &&
 	    zpool_enable_datasets(zhp, mntopts, 0) != 0) {
 		zpool_close(zhp);
 		return (1);
 	}
+#endif /* HAVE_ZPL */
 
 	zpool_close(zhp);
 	return (error);

lib/libzfs/include/libzfs.h

@@ -593,9 +593,6 @@ extern int zpool_read_label(int, nvlist_t **);
 extern int zpool_create_zvol_links(zpool_handle_t *);
 extern int zpool_remove_zvol_links(zpool_handle_t *);
 
-/* is this zvol valid for use as a dump device? */
-extern int zvol_check_dump_config(char *);
-
 /*
  * Management interfaces for SMB ACL files
  */

lib/libzfs/libzfs_changelist.c

@@ -93,6 +93,7 @@ struct prop_changelist {
 int
 changelist_prefix(prop_changelist_t *clp)
 {
+#ifdef HAVE_ZPL
 	prop_changenode_t *cn;
 	int ret = 0;
 
@@ -168,6 +169,9 @@ changelist_prefix(prop_changelist_t *clp)
 		(void) changelist_postfix(clp);
 
 	return (ret);
+#else
+	return 0;
+#endif  /* HAVE_ZPL */
 }
 
 /*
@@ -182,6 +186,7 @@ changelist_prefix(prop_changelist_t *clp)
 int
 changelist_postfix(prop_changelist_t *clp)
 {
+#ifdef HAVE_ZPL
 	prop_changenode_t *cn;
 	char shareopts[ZFS_MAXPROPLEN];
 	int errors = 0;
@@ -306,6 +311,9 @@ changelist_postfix(prop_changelist_t *clp)
 	}
 
 	return (errors ? -1 : 0);
+#else
+	return 0;
+#endif  /* HAVE_ZPL */
 }
 
 /*
@@ -368,6 +376,7 @@ changelist_rename(prop_changelist_t *clp, const char *src, const char *dst)
 int
 changelist_unshare(prop_changelist_t *clp, zfs_share_proto_t *proto)
 {
+#ifdef HAVE_ZPL
 	prop_changenode_t *cn;
 	int ret = 0;
 
@@ -382,6 +391,9 @@ changelist_unshare(prop_changelist_t *clp, zfs_share_proto_t *proto)
 	}
 
 	return (ret);
+#else
+	return 0;
+#endif
 }
 
 /*

lib/libzfs/libzfs_dataset.c

@@ -967,6 +967,7 @@ zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl,
 
 			/*FALLTHRU*/
 
+#ifdef HAVE_ZPL
 		case ZFS_PROP_SHARESMB:
 		case ZFS_PROP_SHARENFS:
 			/*
@@ -1077,6 +1078,7 @@ zfs_valid_proplist(libzfs_handle_t *hdl, zfs_type_t type, nvlist_t *nvl,
 			}
 
 			break;
+#endif /* HAVE_ZPL */
 		case ZFS_PROP_UTF8ONLY:
 			chosen_utf = (int)intval;
 			break;
@@ -2534,6 +2536,7 @@ create_parents(libzfs_handle_t *hdl, char *target, int prefixlen)
 			goto ancestorerr;
 		}
 
+#ifdef HAVE_ZPL
 		if (zfs_mount(h, NULL, 0) != 0) {
 			opname = dgettext(TEXT_DOMAIN, "mount");
 			goto ancestorerr;
@@ -2543,6 +2546,7 @@ create_parents(libzfs_handle_t *hdl, char *target, int prefixlen)
 			opname = dgettext(TEXT_DOMAIN, "share");
 			goto ancestorerr;
 		}
+#endif /* HAVE_ZPL */
 
 		zfs_close(h);
 	}
@@ -3632,7 +3636,7 @@ error:
 
 /*
  * Given a zvol dataset, issue the ioctl to create the appropriate minor node,
- * poke devfsadm to create the /dev link, and then wait for the link to appear.
+ * and wait briefly for udev to create the /dev link.
  */
 int
 zvol_create_link(libzfs_handle_t *hdl, const char *dataset)
@@ -3644,9 +3648,8 @@ static int
 zvol_create_link_common(libzfs_handle_t *hdl, const char *dataset, int ifexists)
 {
 	zfs_cmd_t zc = { "\0", "\0", "\0", 0 };
-	di_devlink_handle_t dhdl;
+	char path[MAXPATHLEN];
-	priv_set_t *priv_effective;
+	int error;
-	int privileged;
 
 	(void) strlcpy(zc.zc_name, dataset, sizeof (zc.zc_name));
 
@@ -3683,52 +3686,13 @@ zvol_create_link_common(libzfs_handle_t *hdl, const char *dataset, int ifexists)
 	}
 
 	/*
-	 * If privileged call devfsadm and wait for the links to
+	 * Wait up to 10 seconds for udev to create the device.
-	 * magically appear.
-	 * Otherwise, print out an informational message.
 	 */
-
+	(void) snprintf(path, sizeof (path), "/dev/%s", dataset);
-	priv_effective = priv_allocset();
+	error = zpool_label_disk_wait(path, 10000);
-	(void) getppriv(PRIV_EFFECTIVE, priv_effective);
+	if (error)
-	privileged = (priv_isfullset(priv_effective) == B_TRUE);
+		(void) printf(gettext("%s may not be immediately "
-	priv_freeset(priv_effective);
+		    "available\n"), path);
-
-	if (privileged) {
-		if ((dhdl = di_devlink_init(ZFS_DRIVER,
-		    DI_MAKE_LINK)) == NULL) {
-			zfs_error_aux(hdl, strerror(errno));
-			(void) zfs_error_fmt(hdl, errno,
-			    dgettext(TEXT_DOMAIN, "cannot create device links "
-			    "for '%s'"), dataset);
-			(void) ioctl(hdl->libzfs_fd, ZFS_IOC_REMOVE_MINOR, &zc);
-			return (-1);
-		} else {
-			(void) di_devlink_fini(&dhdl);
-		}
-	} else {
-		char pathname[MAXPATHLEN];
-		struct stat64 statbuf;
-		int i;
-
-#define	MAX_WAIT	10
-
-		/*
-		 * This is the poor mans way of waiting for the link
-		 * to show up.  If after 10 seconds we still don't
-		 * have it, then print out a message.
-		 */
-		(void) snprintf(pathname, sizeof (pathname), "/dev/zvol/dsk/%s",
-		    dataset);
-
-		for (i = 0; i != MAX_WAIT; i++) {
-			if (stat64(pathname, &statbuf) == 0)
-				break;
-			(void) sleep(1);
-		}
-		if (i == MAX_WAIT)
-			(void) printf(gettext("%s may not be immediately "
-			    "available\n"), pathname);
-	}
 
 	return (0);
 }
@@ -3864,6 +3828,7 @@ zfs_expand_proplist(zfs_handle_t *zhp, zprop_list_t **plp)
 	return (0);
 }
 
+#ifdef HAVE_ZPL
 int
 zfs_iscsi_perm_check(libzfs_handle_t *hdl, char *dataset, ucred_t *cred)
 {
@@ -3929,6 +3894,7 @@ zfs_deleg_share_nfs(libzfs_handle_t *hdl, char *dataset, char *path,
 	error = ioctl(hdl->libzfs_fd, ZFS_IOC_SHARE, &zc);
 	return (error);
 }
+#endif /* HAVE_ZPL */
 
 void
 zfs_prune_proplist(zfs_handle_t *zhp, uint8_t *props)

lib/libzfs/libzfs_mount.c

@@ -85,6 +85,7 @@
 #include <sys/systeminfo.h>
 #define	MAXISALEN	257	/* based on sysinfo(2) man page */
 
+#ifdef HAVE_ZPL
 static int zfs_share_proto(zfs_handle_t *, zfs_share_proto_t *);
 zfs_share_type_t zfs_is_shared_proto(zfs_handle_t *, char **,
     zfs_share_proto_t);
@@ -1225,7 +1226,6 @@ out:
 	return (ret);
 }
 
-
 static int
 zvol_cb(const char *dataset, void *data)
 {
@@ -1398,3 +1398,53 @@ out:
 
 	return (ret);
 }
+
+#else  /* HAVE_ZPL */
+
+int
+zfs_unshare_iscsi(zfs_handle_t *zhp)
+{
+	return 0;
+}
+
+int
+zfs_unmount(zfs_handle_t *zhp, const char *mountpoint, int flags)
+{
+	return 0;
+}
+
+void
+remove_mountpoint(zfs_handle_t *zhp) {
+	return;
+}
+
+boolean_t
+is_mounted(libzfs_handle_t *zfs_hdl, const char *special, char **where)
+{
+	return B_FALSE;
+}
+
+boolean_t
+zfs_is_mounted(zfs_handle_t *zhp, char **where)
+{
+	return is_mounted(zhp->zfs_hdl, zfs_get_name(zhp), where);
+}
+
+boolean_t
+zfs_is_shared(zfs_handle_t *zhp)
+{
+	return B_FALSE;
+}
+
+int
+zpool_enable_datasets(zpool_handle_t *zhp, const char *mntopts, int flags)
+{
+	return B_FALSE;
+}
+
+int
+zpool_disable_datasets(zpool_handle_t *zhp, boolean_t force)
+{
+	return B_FALSE;
+}
+#endif /* HAVE_ZPL */

lib/libzfs/libzfs_pool.c

@@ -3285,113 +3285,3 @@ zpool_label_disk(libzfs_handle_t *hdl, zpool_handle_t *zhp, char *name)
 
 	return 0;
 }
-
-static boolean_t
-supported_dump_vdev_type(libzfs_handle_t *hdl, nvlist_t *config, char *errbuf)
-{
-	char *type;
-	nvlist_t **child;
-	uint_t children, c;
-
-	verify(nvlist_lookup_string(config, ZPOOL_CONFIG_TYPE, &type) == 0);
-	if (strcmp(type, VDEV_TYPE_RAIDZ) == 0 ||
-	    strcmp(type, VDEV_TYPE_FILE) == 0 ||
-	    strcmp(type, VDEV_TYPE_LOG) == 0 ||
-	    strcmp(type, VDEV_TYPE_MISSING) == 0) {
-		zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
-		    "vdev type '%s' is not supported"), type);
-		(void) zfs_error(hdl, EZFS_VDEVNOTSUP, errbuf);
-		return (B_FALSE);
-	}
-	if (nvlist_lookup_nvlist_array(config, ZPOOL_CONFIG_CHILDREN,
-	    &child, &children) == 0) {
-		for (c = 0; c < children; c++) {
-			if (!supported_dump_vdev_type(hdl, child[c], errbuf))
-				return (B_FALSE);
-		}
-	}
-	return (B_TRUE);
-}
-
-/*
- * check if this zvol is allowable for use as a dump device; zero if
- * it is, > 0 if it isn't, < 0 if it isn't a zvol
- */
-int
-zvol_check_dump_config(char *arg)
-{
-	zpool_handle_t *zhp = NULL;
-	nvlist_t *config, *nvroot;
-	char *p, *volname;
-	nvlist_t **top;
-	uint_t toplevels;
-	libzfs_handle_t *hdl;
-	char errbuf[1024];
-	char poolname[ZPOOL_MAXNAMELEN];
-	int pathlen = strlen(ZVOL_FULL_DEV_DIR);
-	int ret = 1;
-
-	if (strncmp(arg, ZVOL_FULL_DEV_DIR, pathlen)) {
-		return (-1);
-	}
-
-	(void) snprintf(errbuf, sizeof (errbuf), dgettext(TEXT_DOMAIN,
-	    "dump is not supported on device '%s'"), arg);
-
-	if ((hdl = libzfs_init()) == NULL)
-		return (1);
-	libzfs_print_on_error(hdl, B_TRUE);
-
-	volname = arg + pathlen;
-
-	/* check the configuration of the pool */
-	if ((p = strchr(volname, '/')) == NULL) {
-		zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
-		    "malformed dataset name"));
-		(void) zfs_error(hdl, EZFS_INVALIDNAME, errbuf);
-		return (1);
-	} else if (p - volname >= ZFS_MAXNAMELEN) {
-		zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
-		    "dataset name is too long"));
-		(void) zfs_error(hdl, EZFS_NAMETOOLONG, errbuf);
-		return (1);
-	} else {
-		(void) strncpy(poolname, volname, p - volname);
-		poolname[p - volname] = '\0';
-	}
-
-	if ((zhp = zpool_open(hdl, poolname)) == NULL) {
-		zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
-		    "could not open pool '%s'"), poolname);
-		(void) zfs_error(hdl, EZFS_OPENFAILED, errbuf);
-		goto out;
-	}
-	config = zpool_get_config(zhp, NULL);
-	if (nvlist_lookup_nvlist(config, ZPOOL_CONFIG_VDEV_TREE,
-	    &nvroot) != 0) {
-		zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
-		    "could not obtain vdev configuration for  '%s'"), poolname);
-		(void) zfs_error(hdl, EZFS_INVALCONFIG, errbuf);
-		goto out;
-	}
-
-	verify(nvlist_lookup_nvlist_array(nvroot, ZPOOL_CONFIG_CHILDREN,
-	    &top, &toplevels) == 0);
-	if (toplevels != 1) {
-		zfs_error_aux(hdl, dgettext(TEXT_DOMAIN,
-		    "'%s' has multiple top level vdevs"), poolname);
-		(void) zfs_error(hdl, EZFS_DEVOVERFLOW, errbuf);
-		goto out;
-	}
-
-	if (!supported_dump_vdev_type(hdl, top[0], errbuf)) {
-		goto out;
-	}
-	ret = 0;
-
-out:
-	if (zhp)
-		zpool_close(zhp);
-	libzfs_fini(hdl);
-	return (ret);
-}

lib/libzfs/libzfs_sendrecv.c

@@ -1975,6 +1975,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
 	 * if we did a replication receive (indicated by stream_avl
 	 * being non-NULL).
 	 */
+#ifdef HAVE_ZPL
 	cp = strchr(zc.zc_value, '@');
 	if (cp && (ioctl_err == 0 || !newfs)) {
 		zfs_handle_t *h;
@@ -2001,6 +2002,7 @@ zfs_receive_one(libzfs_handle_t *hdl, int infd, const char *tosnap,
 		}
 		*cp = '@';
 	}
+#endif /* HAVE_ZPL */
 
 	if (clp) {
 		err |= changelist_postfix(clp);

lib/libzfs/libzfs_util.c

@@ -615,7 +615,9 @@ libzfs_fini(libzfs_handle_t *hdl)
 #endif
 	if (hdl->libzfs_sharetab)
 		(void) fclose(hdl->libzfs_sharetab);
+#ifdef HAVE_ZPL
 	zfs_uninit_libshare(hdl);
+#endif
 	if (hdl->libzfs_log_str)
 		(void) free(hdl->libzfs_log_str);
 	zpool_free_handles(hdl);

module/zcommon/include/sys/fs/zfs.h

@@ -533,23 +533,13 @@ typedef struct vdev_stat {
 	uint64_t	vs_scrub_end;		/* UTC scrub end time	*/
 } vdev_stat_t;
 
-#define	ZVOL_DRIVER	"zvol"
+#define	ZVOL_DRIVER		"zvol"
-#define	ZFS_DRIVER	"zfs"
+#define	ZFS_DRIVER		"zfs"
-#define	ZFS_DEV		"/dev/zfs"
+#define	ZFS_DEV			"/dev/zfs"
-
+#define ZVOL_MAJOR		230
-/*
+#define ZVOL_MINOR_BITS		4
- * zvol paths.  Irritatingly, the devfsadm interfaces want all these
+#define ZVOL_MINOR_MASK		((1U << ZVOL_MINOR_BITS) - 1)
- * paths without the /dev prefix, but for some things, we want the
+#define ZVOL_MINORS		(1 << 4)
- * /dev prefix.  Below are the names without /dev.
- */
-#define	ZVOL_DEV_DIR	"zvol/dsk"
-#define	ZVOL_RDEV_DIR	"zvol/rdsk"
-
-/*
- * And here are the things we need with /dev, etc. in front of them.
- */
-#define	ZVOL_PSEUDO_DEV		"/devices/pseudo/zfs@0:"
-#define	ZVOL_FULL_DEV_DIR	"/dev/" ZVOL_DEV_DIR "/"
 
 #define	ZVOL_PROP_NAME		"name"
 

module/zfs/dmu.c

@@ -669,9 +669,58 @@ dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
 }
 
 #ifdef _KERNEL
-int
+
-dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size)
+/*
+ * Copy up to size bytes between arg_buf and req based on the data direction
+ * described by the req.  If an entire req's data cannot be transfered the
+ * req's is updated such that it's current index and bv offsets correctly
+ * reference any residual data which could not be copied.  The return value
+ * is the number of bytes successfully copied to arg_buf.
+ */
+static int
+dmu_req_copy(void *arg_buf, int size, int *offset, struct request *req)
 {
+	struct bio_vec *bv;
+	struct req_iterator iter;
+	char *bv_buf;
+	int tocpy;
+
+	*offset = 0;
+	rq_for_each_segment(bv, req, iter) {
+
+		/* Fully consumed the passed arg_buf */
+		ASSERT3S(offset, <=, size);
+		if (size == *offset)
+			break;
+
+		/* Skip fully consumed bv's */
+		if (bv->bv_len == 0)
+			continue;
+
+		tocpy = MIN(bv->bv_len, size - *offset);
+		ASSERT3S(tocpy, >=, 0);
+
+		bv_buf = page_address(bv->bv_page) + bv->bv_offset;
+		ASSERT3P(bv_buf, !=, NULL);
+
+		if (rq_data_dir(req) == WRITE)
+			memcpy(arg_buf + *offset, bv_buf, tocpy);
+		else
+			memcpy(bv_buf, arg_buf + *offset, tocpy);
+
+		*offset += tocpy;
+		bv->bv_offset += tocpy;
+		bv->bv_len -= tocpy;
+	}
+
+	return 0;
+}
+
+int
+dmu_read_req(objset_t *os, uint64_t object, struct request *req)
+{
+	uint64_t size = blk_rq_bytes(req);
+	uint64_t offset = blk_rq_pos(req) << 9;
 	dmu_buf_t **dbp;
 	int numbufs, i, err;
 
@@ -679,27 +728,33 @@ dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size)
 	 * NB: we could do this block-at-a-time, but it's nice
 	 * to be reading in parallel.
 	 */
-	err = dmu_buf_hold_array(os, object, uio->uio_loffset, size, TRUE, FTAG,
+	err = dmu_buf_hold_array(os, object, offset, size, TRUE, FTAG,
-	    &numbufs, &dbp);
+				 &numbufs, &dbp);
 	if (err)
 		return (err);
 
 	for (i = 0; i < numbufs; i++) {
-		int tocpy;
+		int tocpy, didcpy, bufoff;
-		int bufoff;
 		dmu_buf_t *db = dbp[i];
 
-		ASSERT(size > 0);
+		bufoff = offset - db->db_offset;
+		ASSERT3S(bufoff, >=, 0);
 
-		bufoff = uio->uio_loffset - db->db_offset;
 		tocpy = (int)MIN(db->db_size - bufoff, size);
+		if (tocpy == 0)
+			break;
+
+		err = dmu_req_copy(db->db_data + bufoff, tocpy, &didcpy, req);
+
+		if (didcpy < tocpy)
+			err = EIO;
 
-		err = uiomove((char *)db->db_data + bufoff, tocpy,
-		    UIO_READ, uio);
 		if (err)
 			break;
 
 		size -= tocpy;
+		offset += didcpy;
+		err = 0;
 	}
 	dmu_buf_rele_array(dbp, numbufs, FTAG);
 
@@ -707,30 +762,31 @@ dmu_read_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size)
 }
 
 int
-dmu_write_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size,
+dmu_write_req(objset_t *os, uint64_t object, struct request *req, dmu_tx_t *tx)
-    dmu_tx_t *tx)
 {
+	uint64_t size = blk_rq_bytes(req);
+	uint64_t offset = blk_rq_pos(req) << 9;
 	dmu_buf_t **dbp;
-	int numbufs, i;
+	int numbufs, i, err;
-	int err = 0;
 
 	if (size == 0)
 		return (0);
 
-	err = dmu_buf_hold_array(os, object, uio->uio_loffset, size,
+	err = dmu_buf_hold_array(os, object, offset, size, FALSE, FTAG,
-	    FALSE, FTAG, &numbufs, &dbp);
+				 &numbufs, &dbp);
 	if (err)
 		return (err);
 
 	for (i = 0; i < numbufs; i++) {
-		int tocpy;
+		int tocpy, didcpy, bufoff;
-		int bufoff;
 		dmu_buf_t *db = dbp[i];
 
-		ASSERT(size > 0);
+		bufoff = offset - db->db_offset;
+		ASSERT3S(bufoff, >=, 0);
 
-		bufoff = uio->uio_loffset - db->db_offset;
 		tocpy = (int)MIN(db->db_size - bufoff, size);
+		if (tocpy == 0)
+			break;
 
 		ASSERT(i == 0 || i == numbufs-1 || tocpy == db->db_size);
 
@@ -739,27 +795,27 @@ dmu_write_uio(objset_t *os, uint64_t object, uio_t *uio, uint64_t size,
 		else
 			dmu_buf_will_dirty(db, tx);
 
-		/*
+		err = dmu_req_copy(db->db_data + bufoff, tocpy, &didcpy, req);
-		 * XXX uiomove could block forever (eg. nfs-backed
-		 * pages).  There needs to be a uiolockdown() function
-		 * to lock the pages in memory, so that uiomove won't
-		 * block.
-		 */
-		err = uiomove((char *)db->db_data + bufoff, tocpy,
-		    UIO_WRITE, uio);
 
 		if (tocpy == db->db_size)
 			dmu_buf_fill_done(db, tx);
 
+		if (didcpy < tocpy)
+			err = EIO;
+
 		if (err)
 			break;
 
 		size -= tocpy;
+		offset += didcpy;
+		err = 0;
 	}
 	dmu_buf_rele_array(dbp, numbufs, FTAG);
 	return (err);
 }
+#endif
 
+#ifdef HAVE_ZPL
 int
 dmu_write_pages(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
     page_t *pp, dmu_tx_t *tx)

module/zfs/dsl_dataset.c

@@ -246,7 +246,13 @@ dsl_dataset_evict(dmu_buf_t *db, void *dsv)
 
 	ASSERT(ds->ds_owner == NULL || DSL_DATASET_IS_DESTROYED(ds));
 
-	dprintf_ds(ds, "evicting %s\n", "");
+	/*
+	 * XXX: Commented out because dsl_dataset_name() is called
+	 * which references ds->ds_dir which it seems may be NULL.
+	 * This is easily trigged with 'zfs destroy <pool>/<ds>.
+	 *                   *
+	 * dprintf_ds(ds, "evicting %s\n", "");
+	 */
 
 	unique_remove(ds->ds_fsid_guid);
 

module/zfs/include/sys/blkdev.h

@@ -0,0 +1,164 @@
+#ifndef	_SYS_BLKDEV_H
+#define	_SYS_BLKDEV_H
+
+#ifdef _KERNEL
+
+#include <linux/blkdev.h>
+#include <linux/elevator.h>
+#include "zfs_config.h"
+
+#ifndef HAVE_BLK_FETCH_REQUEST
+static inline struct request *
+blk_fetch_request(struct request_queue *q)
+{
+	struct request *req;
+
+	req = elv_next_request(q);
+	if (req)
+		blkdev_dequeue_request(req);
+
+	return req;
+}
+#endif /* HAVE_BLK_FETCH_REQUEST */
+
+#ifndef HAVE_BLK_REQUEUE_REQUEST
+static inline void
+blk_requeue_request(request_queue_t *q, struct request *req)
+{
+	elv_requeue_request(q, req);
+}
+#endif /* HAVE_BLK_REQUEUE_REQUEST */
+
+#ifndef HAVE_BLK_END_REQUEST
+static inline bool
+blk_end_request(struct request *req, int error, unsigned int nr_bytes)
+{
+	struct request_queue *q = req->q;
+	LIST_HEAD(list);
+
+	/*
+	 * Request has already been dequeued but 2.6.18 version of
+	 * end_request() unconditionally dequeues the request so we
+	 * add it to a local list to prevent hitting the BUG_ON.
+	 */
+	list_add(&req->queuelist, &list);
+
+	/*
+	 * The old API required the driver to end each segment and not
+	 * the entire request.  In our case we always need to end the
+	 * entire request partial requests are not supported.
+	 */
+	req->hard_cur_sectors = nr_bytes >> 9;
+
+
+	spin_lock_irq(q->queue_lock);
+	end_request(req, ((error == 0) ? 1 : error));
+	spin_unlock_irq(q->queue_lock);
+
+	return 0;
+}
+#else
+# ifdef HAVE_BLK_END_REQUEST_GPL_ONLY
+/*
+ * Define required to avoid conflicting 2.6.29 non-static prototype for a
+ * GPL-only version of the helper.  As of 2.6.31 the helper is available
+ * to non-GPL modules and is not explicitly exported GPL-only.
+ */
+# define blk_end_request ___blk_end_request
+static inline bool
+___blk_end_request(struct request *req, int error, unsigned int nr_bytes)
+{
+	struct request_queue *q = req->q;
+
+	/*
+	 * The old API required the driver to end each segment and not
+	 * the entire request.  In our case we always need to end the
+	 * entire request partial requests are not supported.
+	 */
+	req->hard_cur_sectors = nr_bytes >> 9;
+
+	spin_lock_irq(q->queue_lock);
+	end_request(req, ((error == 0) ? 1 : error));
+	spin_unlock_irq(q->queue_lock);
+
+	return 0;
+}
+# endif /* HAVE_BLK_END_REQUEST_GPL_ONLY */
+#endif /* HAVE_BLK_END_REQUEST */
+
+#ifndef HAVE_BLK_RQ_POS
+static inline sector_t
+blk_rq_pos(struct request *req)
+{
+	return req->sector;
+}
+#endif /* HAVE_BLK_RQ_POS */
+
+#ifndef HAVE_BLK_RQ_SECTORS
+static inline unsigned int
+blk_rq_sectors(struct request *req)
+{
+	return req->nr_sectors;
+}
+#endif /* HAVE_BLK_RQ_SECTORS */
+
+#if !defined(HAVE_BLK_RQ_BYTES) || defined(HAVE_BLK_RQ_BYTES_GPL_ONLY)
+/*
+ * Define required to avoid conflicting 2.6.29 non-static prototype for a
+ * GPL-only version of the helper.  As of 2.6.31 the helper is available
+ * to non-GPL modules in the form of a static inline in the header.
+ */
+#define blk_rq_bytes __blk_rq_bytes
+static inline unsigned int
+__blk_rq_bytes(struct request *req)
+{
+	return blk_rq_sectors(req) << 9;
+}
+#endif /* !HAVE_BLK_RQ_BYTES || HAVE_BLK_RQ_BYTES_GPL_ONLY */
+
+#ifndef HAVE_GET_DISK_RO
+static inline int
+get_disk_ro(struct gendisk *disk)
+{
+	int policy = 0;
+
+	if (disk->part[0])
+		policy = disk->part[0]->policy;
+
+	return policy;
+}
+#endif /* HAVE_GET_DISK_RO */
+
+#ifndef HAVE_RQ_IS_SYNC
+static inline bool
+rq_is_sync(struct request *req)
+{
+	return (req->flags & REQ_RW_SYNC);
+}
+#endif /* HAVE_RQ_IS_SYNC */
+
+#ifndef HAVE_RQ_FOR_EACH_SEGMENT
+struct req_iterator {
+	int i;
+	struct bio *bio;
+};
+
+# define for_each_bio(_bio)              \
+	for (; _bio; _bio = _bio->bi_next)
+
+# define __rq_for_each_bio(_bio, rq)    \
+	if ((rq->bio))                  \
+		for (_bio = (rq)->bio; _bio; _bio = _bio->bi_next)
+
+# define rq_for_each_segment(bvl, _rq, _iter)                   \
+	__rq_for_each_bio(_iter.bio, _rq)                       \
+		bio_for_each_segment(bvl, _iter.bio, _iter.i)
+#endif /* HAVE_RQ_FOR_EACH_SEGMENT */
+
+#ifndef DISK_NAME_LEN
+#define DISK_NAME_LEN	32
+#endif /* DISK_NAME_LEN */
+
+#endif /* KERNEL */
+
+#endif	/* _SYS_BLKDEV_H */

module/zfs/include/sys/dmu.h

@@ -38,12 +38,14 @@
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/cred.h>
+#ifdef _KERNEL
+#include <sys/blkdev.h>
+#endif
 
 #ifdef	__cplusplus
 extern "C" {
 #endif
 
-struct uio;
 struct page;
 struct vnode;
 struct spa;
@@ -490,11 +492,14 @@ void dmu_write(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
 	const void *buf, dmu_tx_t *tx);
 void dmu_prealloc(objset_t *os, uint64_t object, uint64_t offset, uint64_t size,
 	dmu_tx_t *tx);
-int dmu_read_uio(objset_t *os, uint64_t object, struct uio *uio, uint64_t size);
+#ifdef _KERNEL
-int dmu_write_uio(objset_t *os, uint64_t object, struct uio *uio, uint64_t size,
+int dmu_read_req(objset_t *os, uint64_t object, struct request *req);
-    dmu_tx_t *tx);
+int dmu_write_req(objset_t *os, uint64_t object, struct request *req, dmu_tx_t *tx);
+#endif
+#ifdef HAVE_ZPL
 int dmu_write_pages(objset_t *os, uint64_t object, uint64_t offset,
     uint64_t size, struct page *pp, dmu_tx_t *tx);
+#endif
 struct arc_buf *dmu_request_arcbuf(dmu_buf_t *handle, int size);
 void dmu_return_arcbuf(struct arc_buf *buf);
 void dmu_assign_arcbuf(dmu_buf_t *handle, uint64_t offset, struct arc_buf *buf,

module/zfs/include/sys/spa.h

@@ -456,7 +456,6 @@ extern uint64_t spa_get_dspace(spa_t *spa);
 extern uint64_t spa_get_asize(spa_t *spa, uint64_t lsize);
 extern uint64_t spa_version(spa_t *spa);
 extern int spa_max_replication(spa_t *spa);
-extern int spa_busy(void);
 extern uint8_t spa_get_failmode(spa_t *spa);
 extern boolean_t spa_suspended(spa_t *spa);
 

module/zfs/include/sys/zfs_fuid.h

@@ -98,6 +98,7 @@ typedef struct zfs_fuid_info {
 } zfs_fuid_info_t;
 
 #ifdef _KERNEL
+#ifdef HAVE_ZPL
 struct znode;
 extern uid_t zfs_fuid_map_id(zfsvfs_t *, uint64_t, cred_t *, zfs_fuid_type_t);
 extern void zfs_fuid_destroy(zfsvfs_t *);
@@ -115,6 +116,7 @@ extern int zfs_fuid_find_by_domain(zfsvfs_t *, const char *domain,
     char **retdomain, boolean_t addok);
 extern const char *zfs_fuid_find_by_idx(zfsvfs_t *zfsvfs, uint32_t idx);
 extern void zfs_fuid_txhold(zfsvfs_t *zfsvfs, dmu_tx_t *tx);
+#endif /* HAVE_ZPL */
 #endif
 
 char *zfs_fuid_idx_domain(avl_tree_t *, uint32_t);

module/zfs/include/sys/zfs_ioctl.h

@@ -191,7 +191,6 @@ extern int zfs_secpolicy_snapshot_perms(const char *name, cred_t *cr);
 extern int zfs_secpolicy_rename_perms(const char *from,
     const char *to, cred_t *cr);
 extern int zfs_secpolicy_destroy_perms(const char *name, cred_t *cr);
-extern int zfs_busy(void);
 extern int zfs_unmount_snap(char *, void *);
 
 #endif	/* _KERNEL */

module/zfs/include/sys/zfs_znode.h

@@ -345,8 +345,10 @@ extern void zfs_xvattr_set(znode_t *zp, xvattr_t *xvap);
 extern void zfs_upgrade(zfsvfs_t *zfsvfs, dmu_tx_t *tx);
 extern int zfs_create_share_dir(zfsvfs_t *zfsvfs, dmu_tx_t *tx);
 
+#if defined(HAVE_UIO_RW)
 extern caddr_t zfs_map_page(page_t *, enum seg_rw);
 extern void zfs_unmap_page(page_t *, caddr_t);
+#endif /* HAVE_UIO_RW */
 
 extern zil_get_data_t zfs_get_data;
 extern zil_replay_func_t *zfs_replay_vector[TX_MAX_TYPE];

module/zfs/include/sys/zvol.h

@@ -20,51 +20,33 @@
  */
 
 /*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
 #ifndef	_SYS_ZVOL_H
 #define	_SYS_ZVOL_H
 
-
-
 #include <sys/zfs_context.h>
 
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
 #define	ZVOL_OBJ		1ULL
 #define	ZVOL_ZAP_OBJ		2ULL
 
 #ifdef _KERNEL
+
+#include <sys/blkdev.h>
+
 extern int zvol_check_volsize(uint64_t volsize, uint64_t blocksize);
 extern int zvol_check_volblocksize(uint64_t volblocksize);
 extern int zvol_get_stats(objset_t *os, nvlist_t *nv);
 extern void zvol_create_cb(objset_t *os, void *arg, cred_t *cr, dmu_tx_t *tx);
-extern int zvol_create_minor(const char *, major_t);
+extern int zvol_create_minor(const char *);
 extern int zvol_remove_minor(const char *);
-extern int zvol_set_volsize(const char *, major_t, uint64_t);
+extern int zvol_set_volsize(const char *, uint64_t);
 extern int zvol_set_volblocksize(const char *, uint64_t);
 
-extern int zvol_open(dev_t *devp, int flag, int otyp, cred_t *cr);
+extern int zvol_init(void);
-extern int zvol_dump(dev_t dev, caddr_t addr, daddr_t offset, int nblocks);
-extern int zvol_close(dev_t dev, int flag, int otyp, cred_t *cr);
-extern int zvol_strategy(buf_t *bp);
-extern int zvol_read(dev_t dev, uio_t *uiop, cred_t *cr);
-extern int zvol_write(dev_t dev, uio_t *uiop, cred_t *cr);
-extern int zvol_aread(dev_t dev, struct aio_req *aio, cred_t *cr);
-extern int zvol_awrite(dev_t dev, struct aio_req *aio, cred_t *cr);
-extern int zvol_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr,
-    int *rvalp);
-extern int zvol_busy(void);
-extern void zvol_init(void);
 extern void zvol_fini(void);
-#endif
+#endif /* KERNEL */
-
-#ifdef	__cplusplus
-}
-#endif
 
 #endif	/* _SYS_ZVOL_H */

module/zfs/rrwlock.c

@@ -23,6 +23,8 @@
  * Use is subject to license terms.
  */
 
+#ifdef HAVE_ZPL
+
 #include <sys/refcount.h>
 #include <sys/rrwlock.h>
 
@@ -262,3 +264,4 @@ rrw_held(rrwlock_t *rrl, krw_t rw)
 
 	return (held);
 }
+#endif /* HAVE_ZPL */

module/zfs/spa_misc.c

@@ -1348,12 +1348,6 @@ spa_name_compare(const void *a1, const void *a2)
 	return (0);
 }
 
-int
-spa_busy(void)
-{
-	return (spa_active_count);
-}
-
 void
 spa_boot_init(void)
 {

module/zfs/zfs_acl.c

@@ -23,6 +23,8 @@
  * Use is subject to license terms.
  */
 
+#ifdef HAVE_ZPL
+
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/time.h>
@@ -2848,3 +2850,5 @@ zfs_zaccess_rename(znode_t *sdzp, znode_t *szp, znode_t *tdzp,
 
 	return (error);
 }
+
+#endif /* HAVE_ZPL */

module/zfs/zfs_ctldir.c

@@ -64,6 +64,8 @@
  * so that it cannot be freed until all snapshots have been unmounted.
  */
 
+#ifdef HAVE_ZPL
+
 #include <fs/fs_subr.h>
 #include <sys/zfs_ctldir.h>
 #include <sys/zfs_ioctl.h>
@@ -1333,3 +1335,4 @@ zfsctl_umount_snapshots(vfs_t *vfsp, int fflags, cred_t *cr)
 
 	return (error);
 }
+#endif /* HAVE_ZPL */

module/zfs/zfs_dir.c

@@ -23,6 +23,8 @@
  * Use is subject to license terms.
  */
 
+#ifdef HAVE_ZPL
+
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/time.h>
@@ -962,3 +964,4 @@ zfs_sticky_remove_access(znode_t *zdp, znode_t *zp, cred_t *cr)
 	else
 		return (secpolicy_vnode_remove(cr));
 }
+#endif /* HAVE_ZPL */

module/zfs/zfs_fuid.c

@@ -194,6 +194,7 @@ zfs_fuid_idx_domain(avl_tree_t *idx_tree, uint32_t idx)
 }
 
 #ifdef _KERNEL
+#ifdef HAVE_ZPL
 /*
  * Load the fuid table(s) into memory.
  */
@@ -743,4 +744,5 @@ zfs_fuid_txhold(zfsvfs_t *zfsvfs, dmu_tx_t *tx)
 		    FUID_SIZE_ESTIMATE(zfsvfs));
 	}
 }
+#endif /* HAVE_ZPL */
 #endif

module/zfs/zfs_ioctl.c

@@ -64,18 +64,16 @@
 #include <sharefs/share.h>
 #include <sys/dmu_objset.h>
 
+#include <linux/miscdevice.h>
+
 #include "zfs_namecheck.h"
 #include "zfs_prop.h"
 #include "zfs_deleg.h"
-
+#include "zfs_config.h"
-extern struct modlfs zfs_modlfs;
 
 extern void zfs_init(void);
 extern void zfs_fini(void);
 
-ldi_ident_t zfs_li = NULL;
-dev_info_t *zfs_dip;
-
 typedef int zfs_ioc_func_t(zfs_cmd_t *);
 typedef int zfs_secpolicy_func_t(zfs_cmd_t *, cred_t *);
 
@@ -403,6 +401,7 @@ zfs_secpolicy_send(zfs_cmd_t *zc, cred_t *cr)
 	    ZFS_DELEG_PERM_SEND, cr));
 }
 
+#ifdef HAVE_ZPL
 static int
 zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr)
 {
@@ -426,10 +425,12 @@ zfs_secpolicy_deleg_share(zfs_cmd_t *zc, cred_t *cr)
 	return (dsl_deleg_access(zc->zc_name,
 	    ZFS_DELEG_PERM_SHARE, cr));
 }
+#endif /* HAVE_ZPL */
 
 int
 zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
 {
+#ifdef HAVE_ZPL
 	if (!INGLOBALZONE(curproc))
 		return (EPERM);
 
@@ -438,11 +439,15 @@ zfs_secpolicy_share(zfs_cmd_t *zc, cred_t *cr)
 	} else {
 		return (zfs_secpolicy_deleg_share(zc, cr));
 	}
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 int
 zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr)
 {
+#ifdef HAVE_ZPL
 	if (!INGLOBALZONE(curproc))
 		return (EPERM);
 
@@ -451,6 +456,9 @@ zfs_secpolicy_smb_acl(zfs_cmd_t *zc, cred_t *cr)
 	} else {
 		return (zfs_secpolicy_deleg_share(zc, cr));
 	}
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 static int
@@ -645,6 +653,7 @@ zfs_secpolicy_create(zfs_cmd_t *zc, cred_t *cr)
 	return (error);
 }
 
+#ifdef HAVE_ZPL
 static int
 zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
 {
@@ -656,6 +665,7 @@ zfs_secpolicy_umount(zfs_cmd_t *zc, cred_t *cr)
 	}
 	return (error);
 }
+#endif /* HAVE_ZPL */
 
 /*
  * Policy for pool operations - create/destroy pools, add vdevs, etc.  Requires
@@ -836,6 +846,7 @@ put_nvlist(zfs_cmd_t *zc, nvlist_t *nvl)
 	return (error);
 }
 
+#ifdef HAVE_ZPL
 static int
 getzfsvfs(const char *dsname, zfsvfs_t **zvp)
 {
@@ -898,6 +909,7 @@ zfsvfs_rele(zfsvfs_t *zfsvfs, void *tag)
 		zfsvfs_free(zfsvfs);
 	}
 }
+#endif /* HAVE_ZPL */
 
 static int
 zfs_ioc_pool_create(zfs_cmd_t *zc)
@@ -1713,6 +1725,7 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
 
 		if (prop == ZPROP_INVAL) {
 			if (zfs_prop_userquota(propname)) {
+#ifdef HAVE_ZPL
 				uint64_t *valary;
 				unsigned int vallen;
 				const char *domain;
@@ -1741,6 +1754,10 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
 					continue;
 				else
 					goto out;
+#else
+				error = ENOTSUP;
+				goto out;
+#endif
 			} else if (zfs_prop_user(propname)) {
 				VERIFY(nvpair_value_string(elem, &strval) == 0);
 				error = dsl_prop_set(name, propname, 1,
@@ -1781,8 +1798,7 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
 
 		case ZFS_PROP_VOLSIZE:
 			if ((error = nvpair_value_uint64(elem, &intval)) != 0 ||
-			    (error = zvol_set_volsize(name,
+			    (error = zvol_set_volsize(name, intval)) != 0)
-			    ddi_driver_major(zfs_dip), intval)) != 0)
 				goto out;
 			break;
 
@@ -1794,6 +1810,7 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
 
 		case ZFS_PROP_VERSION:
 		{
+#ifdef HAVE_ZPL
 			zfsvfs_t *zfsvfs;
 
 			if ((error = nvpair_value_uint64(elem, &intval)) != 0)
@@ -1812,6 +1829,10 @@ zfs_set_prop_nvlist(const char *name, nvlist_t *nvl)
 			if (error)
 				goto out;
 			break;
+#else
+			error = ENOTSUP;
+			goto out;
+#endif /* HAVE_ZPL */
 		}
 
 		default:
@@ -2023,6 +2044,7 @@ zfs_ioc_pool_get_props(zfs_cmd_t *zc)
 static int
 zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc)
 {
+#ifdef HAVE_ZPL
 	nvlist_t *nvp;
 	int error;
 	uint32_t uid;
@@ -2065,6 +2087,9 @@ zfs_ioc_iscsi_perm_check(zfs_cmd_t *zc)
 	    zfs_prop_to_name(ZFS_PROP_SHAREISCSI), usercred);
 	crfree(usercred);
 	return (error);
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 /*
@@ -2147,7 +2172,7 @@ zfs_ioc_get_fsacl(zfs_cmd_t *zc)
 static int
 zfs_ioc_create_minor(zfs_cmd_t *zc)
 {
-	return (zvol_create_minor(zc->zc_name, ddi_driver_major(zfs_dip)));
+	return (zvol_create_minor(zc->zc_name));
 }
 
 /*
@@ -2162,6 +2187,7 @@ zfs_ioc_remove_minor(zfs_cmd_t *zc)
 	return (zvol_remove_minor(zc->zc_name));
 }
 
+#ifdef HAVE_ZPL
 /*
  * Search the vfs list for a specified resource.  Returns a pointer to it
  * or NULL if no suitable entry is found. The caller of this routine
@@ -2186,6 +2212,7 @@ zfs_get_vfs(const char *resource)
 	vfs_list_unlock();
 	return (vfs_found);
 }
+#endif /* HAVE_ZPL */
 
 /* ARGSUSED */
 static void
@@ -2535,6 +2562,7 @@ out:
 int
 zfs_unmount_snap(char *name, void *arg)
 {
+#ifdef HAVE_ZPL
 	vfs_t *vfsp = NULL;
 
 	if (arg) {
@@ -2566,6 +2594,7 @@ zfs_unmount_snap(char *name, void *arg)
 		if ((err = dounmount(vfsp, flag, kcred)) != 0)
 			return (err);
 	}
+#endif /* HAVE_ZPL */
 	return (0);
 }
 
@@ -2621,6 +2650,7 @@ zfs_ioc_destroy(zfs_cmd_t *zc)
 static int
 zfs_ioc_rollback(zfs_cmd_t *zc)
 {
+#ifdef HAVE_ZPL
 	objset_t *os;
 	int error;
 	zfsvfs_t *zfsvfs = NULL;
@@ -2654,6 +2684,9 @@ zfs_ioc_rollback(zfs_cmd_t *zc)
 	/* Note, the dmu_objset_rollback() releases the objset for us. */
 
 	return (error);
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 /*
@@ -2727,7 +2760,9 @@ static int
 zfs_ioc_recv(zfs_cmd_t *zc)
 {
 	file_t *fp;
+#ifdef HAVE_ZPL
 	objset_t *os;
+#endif /* HAVE_ZPL */
 	dmu_recv_cookie_t drc;
 	boolean_t force = (boolean_t)zc->zc_guid;
 	int error, fd;
@@ -2760,6 +2795,7 @@ zfs_ioc_recv(zfs_cmd_t *zc)
 		return (EBADF);
 	}
 
+#ifdef HAVE_ZPL
 	if (props && dmu_objset_open(tofs, DMU_OST_ANY,
 	    DS_MODE_USER | DS_MODE_READONLY, &os) == 0) {
 		/*
@@ -2770,6 +2806,7 @@ zfs_ioc_recv(zfs_cmd_t *zc)
 
 		dmu_objset_close(os);
 	}
+#endif /* HAVE_ZPL */
 
 	if (zc->zc_string[0]) {
 		error = dmu_objset_open(zc->zc_string, DMU_OST_ANY,
@@ -2801,6 +2838,7 @@ zfs_ioc_recv(zfs_cmd_t *zc)
 	error = dmu_recv_stream(&drc, fp->f_vnode, &off);
 
 	if (error == 0) {
+#ifdef HAVE_ZPL
 		zfsvfs_t *zfsvfs = NULL;
 
 		if (getzfsvfs(tofs, &zfsvfs) == 0) {
@@ -2827,6 +2865,9 @@ zfs_ioc_recv(zfs_cmd_t *zc)
 		} else {
 			error = dmu_recv_end(&drc);
 		}
+#else
+		error = dmu_recv_end(&drc);
+#endif /* HAVE_ZPL */
 	}
 
 	zc->zc_cookie = off - fp->f_offset;
@@ -3057,6 +3098,7 @@ zfs_ioc_promote(zfs_cmd_t *zc)
 static int
 zfs_ioc_userspace_one(zfs_cmd_t *zc)
 {
+#ifdef HAVE_ZPL
 	zfsvfs_t *zfsvfs;
 	int error;
 
@@ -3072,6 +3114,9 @@ zfs_ioc_userspace_one(zfs_cmd_t *zc)
 	zfsvfs_rele(zfsvfs, FTAG);
 
 	return (error);
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 /*
@@ -3088,6 +3133,7 @@ zfs_ioc_userspace_one(zfs_cmd_t *zc)
 static int
 zfs_ioc_userspace_many(zfs_cmd_t *zc)
 {
+#ifdef HAVE_ZPL
 	zfsvfs_t *zfsvfs;
 	int error;
 
@@ -3110,6 +3156,9 @@ zfs_ioc_userspace_many(zfs_cmd_t *zc)
 	zfsvfs_rele(zfsvfs, FTAG);
 
 	return (error);
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 /*
@@ -3122,6 +3171,7 @@ zfs_ioc_userspace_many(zfs_cmd_t *zc)
 static int
 zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
 {
+#ifdef HAVE_ZPL
 	objset_t *os;
 	int error;
 	zfsvfs_t *zfsvfs;
@@ -3154,6 +3204,9 @@ zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
 	}
 
 	return (error);
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 /*
@@ -3163,6 +3216,7 @@ zfs_ioc_userspace_upgrade(zfs_cmd_t *zc)
  * the first file system is shared.
  * Neither sharefs, nfs or smbsrv are unloadable modules.
  */
+#ifdef HAVE_ZPL
 int (*znfsexport_fs)(void *arg);
 int (*zshare_fs)(enum sharefs_sys_op, share_t *, uint32_t);
 int (*zsmbexport_fs)(void *arg, boolean_t add_share);
@@ -3194,10 +3248,12 @@ zfs_init_sharefs()
 	}
 	return (0);
 }
+#endif /* HAVE_ZPL */
 
 static int
 zfs_ioc_share(zfs_cmd_t *zc)
 {
+#ifdef HAVE_ZPL
 	int error;
 	int opcode;
 
@@ -3287,7 +3343,9 @@ zfs_ioc_share(zfs_cmd_t *zc)
 	    zc->zc_share.z_sharemax);
 
 	return (error);
-
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 ace_t full_access[] = {
@@ -3297,6 +3355,7 @@ ace_t full_access[] = {
 /*
  * Remove all ACL files in shares dir
  */
+#ifdef HAVE_ZPL
 static int
 zfs_smb_acl_purge(znode_t *dzp)
 {
@@ -3315,10 +3374,12 @@ zfs_smb_acl_purge(znode_t *dzp)
 	zap_cursor_fini(&zc);
 	return (error);
 }
+#endif /* HAVE ZPL */
 
 static int
 zfs_ioc_smb_acl(zfs_cmd_t *zc)
 {
+#ifdef HAVE_ZPL
 	vnode_t *vp;
 	znode_t *dzp;
 	vnode_t *resourcevp = NULL;
@@ -3440,6 +3501,9 @@ zfs_ioc_smb_acl(zfs_cmd_t *zc)
 	ZFS_EXIT(zfsvfs);
 
 	return (error);
+#else
+	return (ENOTSUP);
+#endif /* HAVE_ZPL */
 }
 
 /*
@@ -3632,28 +3696,23 @@ pool_status_check(const char *name, zfs_ioc_namecheck_t type)
 	return (error);
 }
 
-static int
+static long
-zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
+zfs_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
 {
 	zfs_cmd_t *zc;
 	uint_t vec;
-	int error, rc;
+	int error, rc, flag = 0;
-
-	if (getminor(dev) != 0)
-		return (zvol_ioctl(dev, cmd, arg, flag, cr, rvalp));
 
 	vec = cmd - ZFS_IOC;
-	ASSERT3U(getmajor(dev), ==, ddi_driver_major(zfs_dip));
-
 	if (vec >= sizeof (zfs_ioc_vec) / sizeof (zfs_ioc_vec[0]))
-		return (EINVAL);
+		return (-EINVAL);
 
 	zc = vmem_zalloc(sizeof (zfs_cmd_t), KM_SLEEP);
 
 	error = ddi_copyin((void *)arg, zc, sizeof (zfs_cmd_t), flag);
 
 	if (error == 0)
-		error = zfs_ioc_vec[vec].zvec_secpolicy(zc, cr);
+		error = zfs_ioc_vec[vec].zvec_secpolicy(zc, NULL);
 
 	/*
 	 * Ensure that all pool/dataset names are valid before we pass down to
@@ -3695,121 +3754,59 @@ zfsdev_ioctl(dev_t dev, int cmd, intptr_t arg, int flag, cred_t *cr, int *rvalp)
 	}
 
 	vmem_free(zc, sizeof (zfs_cmd_t));
-	return (error);
+	return (-error);
 }
 
-static int
+#ifdef CONFIG_COMPAT
-zfs_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
+static long
+zfs_compat_ioctl(struct file *filp, unsigned cmd, unsigned long arg)
 {
-	if (cmd != DDI_ATTACH)
+        return zfs_ioctl(filp, cmd, arg);
-		return (DDI_FAILURE);
-
-	if (ddi_create_minor_node(dip, "zfs", S_IFCHR, 0,
-	    DDI_PSEUDO, 0) == DDI_FAILURE)
-		return (DDI_FAILURE);
-
-	zfs_dip = dip;
-
-	ddi_report_dev(dip);
-
-	return (DDI_SUCCESS);
 }
+#else
+#define zfs_compat_ioctl   NULL
+#endif
+
+static const struct file_operations zfs_fops = {
+	.unlocked_ioctl  = zfs_ioctl,
+	.compat_ioctl    = zfs_compat_ioctl,
+	.owner           = THIS_MODULE,
+};
+
+static struct miscdevice zfs_misc = {
+	.minor          = MISC_DYNAMIC_MINOR,
+	.name           = ZFS_DRIVER,
+	.fops           = &zfs_fops,
+};
 
 static int
-zfs_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
+zfs_attach(void)
 {
-	if (spa_busy() || zfs_busy() || zvol_busy())
+	int error;
-		return (DDI_FAILURE);
 
-	if (cmd != DDI_DETACH)
+	error = misc_register(&zfs_misc);
-		return (DDI_FAILURE);
+        if (error) {
-
+		printk(KERN_INFO "ZFS: misc_register() failed %d\n", error);
-	zfs_dip = NULL;
+		return (error);
-
-	ddi_prop_remove_all(dip);
-	ddi_remove_minor_node(dip, NULL);
-
-	return (DDI_SUCCESS);
-}
-
-/*ARGSUSED*/
-static int
-zfs_info(dev_info_t *dip, ddi_info_cmd_t infocmd, void *arg, void **result)
-{
-	switch (infocmd) {
-	case DDI_INFO_DEVT2DEVINFO:
-		*result = zfs_dip;
-		return (DDI_SUCCESS);
-
-	case DDI_INFO_DEVT2INSTANCE:
-		*result = (void *)0;
-		return (DDI_SUCCESS);
 	}
 
-	return (DDI_FAILURE);
+	return (0);
 }
 
-/*
+static void
- * OK, so this is a little weird.
+zfs_detach(void)
- *
+{
- * /dev/zfs is the control node, i.e. minor 0.
+	int error;
- * /dev/zvol/[r]dsk/pool/dataset are the zvols, minor > 0.
- *
- * /dev/zfs has basically nothing to do except serve up ioctls,
- * so most of the standard driver entry points are in zvol.c.
- */
-static struct cb_ops zfs_cb_ops = {
-	zvol_open,	/* open */
-	zvol_close,	/* close */
-	zvol_strategy,	/* strategy */
-	nodev,		/* print */
-	zvol_dump,	/* dump */
-	zvol_read,	/* read */
-	zvol_write,	/* write */
-	zfsdev_ioctl,	/* ioctl */
-	nodev,		/* devmap */
-	nodev,		/* mmap */
-	nodev,		/* segmap */
-	nochpoll,	/* poll */
-	ddi_prop_op,	/* prop_op */
-	NULL,		/* streamtab */
-	D_NEW | D_MP | D_64BIT,		/* Driver compatibility flag */
-	CB_REV,		/* version */
-	nodev,		/* async read */
-	nodev,		/* async write */
-};
-
-static struct dev_ops zfs_dev_ops = {
-	DEVO_REV,	/* version */
-	0,		/* refcnt */
-	zfs_info,	/* info */
-	nulldev,	/* identify */
-	nulldev,	/* probe */
-	zfs_attach,	/* attach */
-	zfs_detach,	/* detach */
-	nodev,		/* reset */
-	&zfs_cb_ops,	/* driver operations */
-	NULL,		/* no bus operations */
-	NULL,		/* power */
-	ddi_quiesce_not_needed,	/* quiesce */
-};
-
-static struct modldrv zfs_modldrv = {
-	&mod_driverops,
-	"ZFS storage pool",
-	&zfs_dev_ops
-};
-
-static struct modlinkage modlinkage = {
-	MODREV_1,
-	(void *)&zfs_modlfs,
-	(void *)&zfs_modldrv,
-	NULL
-};
 
+	error = misc_deregister(&zfs_misc);
+	if (error)
+		printk(KERN_INFO "ZFS: misc_deregister() failed %d\n", error);
+}
 
+#ifdef HAVE_ZPL
 uint_t zfs_fsyncer_key;
 extern uint_t rrw_tsd_key;
+#endif
 
 int
 _init(void)
@@ -3818,21 +3815,28 @@ _init(void)
 
 	spa_init(FREAD | FWRITE);
 	zfs_init();
-	zvol_init();
 
-	if ((error = mod_install(&modlinkage)) != 0) {
+	if ((error = zvol_init()) != 0) {
-		zvol_fini();
 		zfs_fini();
 		spa_fini();
 		return (error);
 	}
 
+	if ((error = zfs_attach()) != 0) {
+		(void)zvol_fini();
+		zfs_fini();
+		spa_fini();
+		return (error);
+	}
+
+#ifdef HAVE_ZPL
 	tsd_create(&zfs_fsyncer_key, NULL);
 	tsd_create(&rrw_tsd_key, NULL);
 
-	error = ldi_ident_from_mod(&modlinkage, &zfs_li);
-	ASSERT(error == 0);
 	mutex_init(&zfs_share_lock, NULL, MUTEX_DEFAULT, NULL);
+#endif /* HAVE_ZPL */
+
+	printk(KERN_INFO "ZFS: Loaded ZFS Filesystem v%s\n", ZFS_META_VERSION);
 
 	return (0);
 }
@@ -3840,17 +3844,11 @@ _init(void)
 int
 _fini(void)
 {
-	int error;
+	zfs_detach();
-
-	if (spa_busy() || zfs_busy() || zvol_busy() || zio_injection_enabled)
-		return (EBUSY);
-
-	if ((error = mod_remove(&modlinkage)) != 0)
-		return (error);
-
 	zvol_fini();
 	zfs_fini();
 	spa_fini();
+#ifdef HAVE_ZPL
 	if (zfs_nfsshare_inited)
 		(void) ddi_modclose(nfs_mod);
 	if (zfs_smbshare_inited)
@@ -3858,16 +3856,18 @@ _fini(void)
 	if (zfs_nfsshare_inited || zfs_smbshare_inited)
 		(void) ddi_modclose(sharefs_mod);
 
-	tsd_destroy(&zfs_fsyncer_key);
-	ldi_ident_release(zfs_li);
-	zfs_li = NULL;
 	mutex_destroy(&zfs_share_lock);
+	tsd_destroy(&zfs_fsyncer_key);
+#endif /* HAVE_ZPL */
 
-	return (error);
+	return (0);
 }
 
-int
+#ifdef HAVE_SPL
-_info(struct modinfo *modinfop)
+spl_module_init(_init);
-{
+spl_module_exit(_fini);
-	return (mod_info(&modlinkage, modinfop));
+
-}
+MODULE_AUTHOR("Sun Microsystems, Inc");
+MODULE_DESCRIPTION("ZFS");
+MODULE_LICENSE("CDDL");
+#endif /* HAVE_SPL */

module/zfs/zfs_log.c

@@ -23,6 +23,8 @@
  * Use is subject to license terms.
  */
 
+#ifdef HAVE_ZPL
+
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -704,3 +706,5 @@ zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
 	seq = zil_itx_assign(zilog, itx, tx);
 	zp->z_last_itx = seq;
 }
+
+#endif /* HAVE_ZPL */

module/zfs/zfs_replay.c

@@ -23,7 +23,7 @@
  * Use is subject to license terms.
  */
 
-
+#ifdef HAVE_ZPL
 
 #include <sys/types.h>
 #include <sys/param.h>
@@ -876,3 +876,4 @@ zil_replay_func_t *zfs_replay_vector[TX_MAX_TYPE] = {
 	zfs_replay_create,	/* TX_MKDIR_ATTR */
 	zfs_replay_create_acl,	/* TX_MKDIR_ACL_ATTR */
 };
+#endif /* HAVE_ZPL */

module/zfs/zfs_vfsops.c

@@ -61,6 +61,7 @@
 #include <sys/dmu_objset.h>
 #include <sys/spa_boot.h>
 
+#ifdef HAVE_ZPL
 int zfsfstype;
 vfsops_t *zfs_vfsops = NULL;
 static major_t zfs_major;
@@ -1957,10 +1958,12 @@ zfs_vfsinit(int fstype, char *name)
 
 	return (0);
 }
+#endif /* HAVE_ZPL */
 
 void
 zfs_init(void)
 {
+#ifdef HAVE_ZPL
 	/*
 	 * Initialize .zfs directory structures
 	 */
@@ -1972,21 +1975,19 @@ zfs_init(void)
 	zfs_znode_init();
 
 	dmu_objset_register_type(DMU_OST_ZFS, zfs_space_delta_cb);
+#endif /* HAVE_ZPL */
 }
 
 void
 zfs_fini(void)
 {
+#ifdef HAVE_ZPL
 	zfsctl_fini();
 	zfs_znode_fini();
+#endif /* HAVE_ZPL */
 }
 
-int
+#ifdef HAVE_ZPL
-zfs_busy(void)
-{
-	return (zfs_active_fs_count != 0);
-}
-
 int
 zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
 {
@@ -2029,6 +2030,7 @@ zfs_set_version(zfsvfs_t *zfsvfs, uint64_t newvers)
 
 	return (0);
 }
+#endif /* HAVE_ZPL */
 
 /*
  * Read a property stored within the master node.
@@ -2072,6 +2074,7 @@ zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value)
 	return (error);
 }
 
+#ifdef HAVE_ZPL
 static vfsdef_t vfw = {
 	VFSDEF_VERSION,
 	MNTTYPE_ZFS,
@@ -2084,3 +2087,4 @@ static vfsdef_t vfw = {
 struct modlfs zfs_modlfs = {
 	&mod_fsops, "ZFS filesystem version " SPA_VERSION_STRING, &vfw
 };
+#endif /* HAVE_ZPL */

module/zfs/zfs_vnops.c

@@ -25,6 +25,8 @@
 
 /* Portions Copyright 2007 Jeremy Teo */
 
+#ifdef HAVE_ZPL
+
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/time.h>
@@ -318,6 +320,7 @@ zfs_ioctl(vnode_t *vp, int com, intptr_t data, int flag, cred_t *cred,
 	return (ENOTTY);
 }
 
+#if defined(_KERNEL) && defined(HAVE_UIO_RW)
 /*
  * Utility functions to map and unmap a single physical page.  These
  * are used to manage the mappable copies of ZFS file data, and therefore
@@ -342,6 +345,7 @@ zfs_unmap_page(page_t *pp, caddr_t addr)
 		ppmapout(addr);
 	}
 }
+#endif /* _KERNEL && HAVE_UIO_RW */
 
 /*
  * When a file is memory mapped, we must keep the IO data synchronized
@@ -4695,3 +4699,4 @@ const fs_operation_def_t zfs_evnodeops_template[] = {
 	VOPNAME_PATHCONF,	{ .vop_pathconf = zfs_pathconf },
 	NULL,			NULL
 };
+#endif /* HAVE_ZPL */

module/zfs/zfs_znode.c

@@ -87,6 +87,7 @@
  * (such as VFS logic) that will not compile easily in userland.
  */
 #ifdef _KERNEL
+#ifdef HAVE_ZPL
 /*
  * Needed to close a small window in zfs_znode_move() that allows the zfsvfs to
  * be freed before it can be safely accessed.
@@ -1473,21 +1474,28 @@ log:
 	dmu_tx_commit(tx);
 	return (0);
 }
+#endif /* HAVE_ZPL */
 
 void
 zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx)
 {
-	zfsvfs_t	zfsvfs;
 	uint64_t	moid, obj, version;
 	uint64_t	sense = ZFS_CASE_SENSITIVE;
 	uint64_t	norm = 0;
 	nvpair_t	*elem;
 	int		error;
+#ifdef HAVE_ZPL
+	zfsvfs_t	zfsvfs;
 	znode_t		*rootzp = NULL;
 	vnode_t		*vp;
 	vattr_t		vattr;
 	znode_t		*zp;
 	zfs_acl_ids_t	acl_ids;
+#else
+	timestruc_t	now;
+	dmu_buf_t	*db;
+	znode_phys_t	*pzp;
+#endif /* HAVE_ZPL */
 
 	/*
 	 * First attempt to create master node.
@@ -1542,6 +1550,7 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx)
 	error = zap_add(os, moid, ZFS_UNLINKED_SET, 8, 1, &obj, tx);
 	ASSERT(error == 0);
 
+#ifdef HAVE_ZPL
 	/*
 	 * Create root znode.  Create minimal znode/vnode/zfsvfs
 	 * to allow zfs_mknode to work.
@@ -1596,14 +1605,46 @@ zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *zplprops, dmu_tx_t *tx)
 	dmu_buf_rele(rootzp->z_dbuf, NULL);
 	rootzp->z_dbuf = NULL;
 	kmem_cache_free(znode_cache, rootzp);
+	error = zfs_create_share_dir(&zfsvfs, tx);
+#else
+	/*
+	 * Create root znode with code free of VFS dependencies
+	 */
+	obj = zap_create_norm(os, norm, DMU_OT_DIRECTORY_CONTENTS,
+	                      DMU_OT_ZNODE, sizeof (znode_phys_t), tx);
+
+	VERIFY(0 == dmu_bonus_hold(os, obj, FTAG, &db));
+	dmu_buf_will_dirty(db, tx);
 
 	/*
-	 * Create shares directory
+	 * Initialize the znode physical data to zero.
 	 */
+	ASSERT(db->db_size >= sizeof (znode_phys_t));
+	bzero(db->db_data, db->db_size);
+	pzp = db->db_data;
 
-	error = zfs_create_share_dir(&zfsvfs, tx);
+	if (USE_FUIDS(version, os))
+		pzp->zp_flags = ZFS_ARCHIVE | ZFS_AV_MODIFIED;
 
+	pzp->zp_size = 2; /* "." and ".." */
+	pzp->zp_links = 2;
+	pzp->zp_parent = obj;
+	pzp->zp_gen = dmu_tx_get_txg(tx);
+	pzp->zp_mode = S_IFDIR | 0755;
+	pzp->zp_flags = ZFS_ACL_TRIVIAL;
+
+	gethrestime(&now);
+
+	ZFS_TIME_ENCODE(&now, pzp->zp_crtime);
+	ZFS_TIME_ENCODE(&now, pzp->zp_ctime);
+	ZFS_TIME_ENCODE(&now, pzp->zp_atime);
+	ZFS_TIME_ENCODE(&now, pzp->zp_mtime);
+
+	error = zap_add(os, moid, ZFS_ROOT_OBJ, 8, 1, &obj, tx);
 	ASSERT(error == 0);
+
+	dmu_buf_rele(db, FTAG);
+#endif /* HAVE_ZPL */
 }
 
 #endif /* _KERNEL */