OpenZFS 7431 - ZFS Channel Programs

Authored by: Chris Williamson <[email protected]>
Reviewed by: Matthew Ahrens <[email protected]>
Reviewed by: George Wilson <[email protected]>
Reviewed by: John Kennedy <[email protected]>
Reviewed by: Dan Kimmel <[email protected]>
Approved by: Garrett D'Amore <[email protected]>
Ported-by: Don Brady <[email protected]>
Ported-by: John Kennedy <[email protected]>

OpenZFS-issue: https://www.illumos.org/issues/7431
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/dfc11533

Porting Notes:
* The CLI long option arguments for '-t' and '-m' don't parse on linux
* Switched from kmem_alloc to vmem_alloc in zcp_lua_alloc
* Lua implementation is built as its own module (zlua.ko)
* Lua headers consumed directly by zfs code moved to 'include/sys/lua/'
* There is no native setjmp/longjump available in stock Linux kernel.
  Brought over implementations from illumos and FreeBSD
* The get_temporary_prop() was adapted due to VFS platform differences
* Use of inline functions in lua parser to reduce stack usage per C call
* Skip some ZFS Test Suite ZCP tests on sparc64 to avoid stack overflow

2 files changed, 20 insertions, 2 deletions

diff --git a/module/zcommon/Makefile.in b/module/zcommon/Makefile.in
index 501fb24e1..0ac0d43ee 100644
--- a/module/zcommon/Makefile.in
+++ b/module/zcommon/Makefile.in
@@ -1,5 +1,6 @@
 src = @abs_top_srcdir@/module/zcommon
 obj = @abs_builddir@
+target_cpu = @target_cpu@
 
 MODULE := zcommon
 
@@ -7,6 +8,11 @@ obj-$(CONFIG_ZFS) := $(MODULE).o
 
 ccflags-y := $(ZFS_MODULE_CFLAGS) $(ZFS_MODULE_CPPFLAGS)
 
+# Suppress unused-value warnings in sparc64 architecture headers
+ifeq ($(target_cpu),sparc64)
+ccflags-y += -Wno-unused-value
+endif
+
 $(MODULE)-objs += zfeature_common.o
 $(MODULE)-objs += zfs_comutil.o
 $(MODULE)-objs += zfs_deleg.o
diff --git a/module/zcommon/zfs_prop.c b/module/zcommon/zfs_prop.c
index 67faa07e7..42af9468c 100644
--- a/module/zcommon/zfs_prop.c
+++ b/module/zcommon/zfs_prop.c
@@ -20,7 +20,7 @@
  */
 /*
  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
- * Copyright (c) 2011, 2014 by Delphix. All rights reserved.
+ * Copyright (c) 2011, 2016 by Delphix. All rights reserved.
  * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
  * Copyright 2016, Joyent, Inc.
  */
@@ -490,7 +490,8 @@ zfs_prop_init(void)
 	zprop_register_number(ZFS_PROP_WRITTEN, "written", 0, PROP_READONLY,
 	    ZFS_TYPE_DATASET, "<size>", "WRITTEN");
 	zprop_register_number(ZFS_PROP_LOGICALUSED, "logicalused", 0,
-	    PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LUSED");
+	    PROP_READONLY, ZFS_TYPE_FILESYSTEM | ZFS_TYPE_VOLUME, "<size>",
+	    "LUSED");
 	zprop_register_number(ZFS_PROP_LOGICALREFERENCED, "logicalreferenced",
 	    0, PROP_READONLY, ZFS_TYPE_DATASET, "<size>", "LREFER");
 	zprop_register_number(ZFS_PROP_FILESYSTEM_COUNT, "filesystem_count",
@@ -710,6 +711,15 @@ zfs_prop_readonly(zfs_prop_t prop)
 }
 
 /*
+ * Returns TRUE if the property is visible (not hidden).
+ */
+boolean_t
+zfs_prop_visible(zfs_prop_t prop)
+{
+	return (zfs_prop_table[prop].pd_visible);
+}
+
+/*
  * Returns TRUE if the property is only allowed to be set once.
  */
 boolean_t
@@ -859,6 +869,7 @@ EXPORT_SYMBOL(zfs_prop_init);
 EXPORT_SYMBOL(zfs_prop_get_type);
 EXPORT_SYMBOL(zfs_prop_get_table);
 EXPORT_SYMBOL(zfs_prop_delegatable);
+EXPORT_SYMBOL(zfs_prop_visible);
 
 /* Dataset property functions shared between libzfs and kernel. */
 EXPORT_SYMBOL(zfs_prop_default_string);
@@ -875,5 +886,6 @@ EXPORT_SYMBOL(zfs_prop_userquota);
 EXPORT_SYMBOL(zfs_prop_index_to_string);
 EXPORT_SYMBOL(zfs_prop_string_to_index);
 EXPORT_SYMBOL(zfs_prop_valid_for_type);
+EXPORT_SYMBOL(zfs_prop_written);
 
 #endif