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-rw-r--r--include/sys/dsl_prop.h9
-rw-r--r--man/man8/zfs-program.824
-rw-r--r--module/zfs/dsl_prop.c12
-rw-r--r--module/zfs/zcp_synctask.c86
-rw-r--r--tests/runfiles/common.run2
-rw-r--r--tests/zfs-tests/tests/functional/channel_program/synctask_core/Makefile.am1
-rwxr-xr-xtests/zfs-tests/tests/functional/channel_program/synctask_core/tst.inherit.ksh39
7 files changed, 162 insertions, 11 deletions
diff --git a/include/sys/dsl_prop.h b/include/sys/dsl_prop.h
index 62ef0ba67..fba8f908d 100644
--- a/include/sys/dsl_prop.h
+++ b/include/sys/dsl_prop.h
@@ -21,6 +21,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012 by Delphix. All rights reserved.
+ * Copyright 2019 Joyent, Inc.
*/
#ifndef _SYS_DSL_PROP_H
@@ -61,6 +62,12 @@ typedef struct dsl_props_arg {
zprop_source_t pa_source;
} dsl_props_arg_t;
+typedef struct dsl_props_set_arg {
+ const char *dpsa_dsname;
+ zprop_source_t dpsa_source;
+ nvlist_t *dpsa_props;
+} dsl_props_set_arg_t;
+
void dsl_prop_init(dsl_dir_t *dd);
void dsl_prop_fini(dsl_dir_t *dd);
int dsl_prop_register(struct dsl_dataset *ds, const char *propname,
@@ -85,6 +92,8 @@ int dsl_prop_get_dd(struct dsl_dir *dd, const char *propname,
int intsz, int numints, void *buf, char *setpoint,
boolean_t snapshot);
+int dsl_props_set_check(void *arg, dmu_tx_t *tx);
+void dsl_props_set_sync(void *arg, dmu_tx_t *tx);
void dsl_props_set_sync_impl(struct dsl_dataset *ds, zprop_source_t source,
nvlist_t *props, dmu_tx_t *tx);
void dsl_prop_set_sync_impl(struct dsl_dataset *ds, const char *propname,
diff --git a/man/man8/zfs-program.8 b/man/man8/zfs-program.8
index 7c58af0d2..f953cf18f 100644
--- a/man/man8/zfs-program.8
+++ b/man/man8/zfs-program.8
@@ -9,8 +9,9 @@
.\"
.\"
.\" Copyright (c) 2016, 2019 by Delphix. All Rights Reserved.
+.\" Copyright 2020 Joyent, Inc.
.\"
-.Dd February 26, 2019
+.Dd January 15, 2020
.Dt ZFS-PROGRAM 8
.Os
.Sh NAME
@@ -364,6 +365,27 @@ Valid only for destroying snapshots.
If set to true, and the snapshot has holds or clones, allows the snapshot to be
marked for deferred deletion rather than failing.
.Ed
+.It Em zfs.sync.inherit(dataset, property)
+Clears the specified property in the given dataset, causing it to be inherited
+from an ancestor, or restored to the default if no ancestor property is set.
+The
+.Ql zfs inherit -S
+option has not been implemented.
+Returns 0 on success, or a nonzero error code if the property could not be
+cleared.
+.Pp
+dataset (string)
+.Bd -ragged -compact -offset "xxxx"
+Filesystem or snapshot containing the property to clear.
+.Ed
+.Pp
+property (string)
+.Bd -ragged -compact -offset "xxxx"
+The property to clear.
+Allowed properties are the same as those for the
+.Nm zfs Cm inherit
+command.
+.Ed
.It Em zfs.sync.promote(dataset)
Promote the given clone to a filesystem.
Returns 0 on successful promotion, or a nonzero error code otherwise.
diff --git a/module/zfs/dsl_prop.c b/module/zfs/dsl_prop.c
index 4c468de5f..1c99f3b75 100644
--- a/module/zfs/dsl_prop.c
+++ b/module/zfs/dsl_prop.c
@@ -22,7 +22,7 @@
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2012, 2015 by Delphix. All rights reserved.
* Copyright (c) 2013 Martin Matuska. All rights reserved.
- * Copyright 2015, Joyent, Inc.
+ * Copyright 2019 Joyent, Inc.
*/
#include <sys/zfs_context.h>
@@ -856,13 +856,7 @@ dsl_prop_inherit(const char *dsname, const char *propname,
return (error);
}
-typedef struct dsl_props_set_arg {
- const char *dpsa_dsname;
- zprop_source_t dpsa_source;
- nvlist_t *dpsa_props;
-} dsl_props_set_arg_t;
-
-static int
+int
dsl_props_set_check(void *arg, dmu_tx_t *tx)
{
dsl_props_set_arg_t *dpsa = arg;
@@ -940,7 +934,7 @@ dsl_props_set_sync_impl(dsl_dataset_t *ds, zprop_source_t source,
}
}
-static void
+void
dsl_props_set_sync(void *arg, dmu_tx_t *tx)
{
dsl_props_set_arg_t *dpsa = arg;
diff --git a/module/zfs/zcp_synctask.c b/module/zfs/zcp_synctask.c
index e089666f2..3b6015f24 100644
--- a/module/zfs/zcp_synctask.c
+++ b/module/zfs/zcp_synctask.c
@@ -15,6 +15,7 @@
/*
* Copyright (c) 2016, 2017 by Delphix. All rights reserved.
+ * Copyright 2020 Joyent, Inc.
*/
#include <sys/lua/lua.h>
@@ -35,6 +36,12 @@
#define DST_AVG_BLKSHIFT 14
+typedef struct zcp_inherit_prop_arg {
+ lua_State *zipa_state;
+ const char *zipa_prop;
+ dsl_props_set_arg_t zipa_dpsa;
+} zcp_inherit_prop_arg_t;
+
typedef int (zcp_synctask_func_t)(lua_State *, boolean_t, nvlist_t *);
typedef struct zcp_synctask_info {
const char *name;
@@ -275,6 +282,84 @@ zcp_synctask_snapshot(lua_State *state, boolean_t sync, nvlist_t *err_details)
return (err);
}
+static int zcp_synctask_inherit_prop(lua_State *, boolean_t,
+ nvlist_t *err_details);
+static zcp_synctask_info_t zcp_synctask_inherit_prop_info = {
+ .name = "inherit",
+ .func = zcp_synctask_inherit_prop,
+ .space_check = ZFS_SPACE_CHECK_RESERVED,
+ .blocks_modified = 2, /* 2 * numprops */
+ .pargs = {
+ { .za_name = "dataset", .za_lua_type = LUA_TSTRING },
+ { .za_name = "property", .za_lua_type = LUA_TSTRING },
+ { NULL, 0 }
+ },
+ .kwargs = {
+ { NULL, 0 }
+ },
+};
+
+static int
+zcp_synctask_inherit_prop_check(void *arg, dmu_tx_t *tx)
+{
+ zcp_inherit_prop_arg_t *args = arg;
+ zfs_prop_t prop = zfs_name_to_prop(args->zipa_prop);
+
+ if (prop == ZPROP_INVAL) {
+ if (zfs_prop_user(args->zipa_prop))
+ return (0);
+
+ return (EINVAL);
+ }
+
+ if (zfs_prop_readonly(prop))
+ return (EINVAL);
+
+ if (!zfs_prop_inheritable(prop))
+ return (EINVAL);
+
+ return (dsl_props_set_check(&args->zipa_dpsa, tx));
+}
+
+static void
+zcp_synctask_inherit_prop_sync(void *arg, dmu_tx_t *tx)
+{
+ zcp_inherit_prop_arg_t *args = arg;
+ dsl_props_set_arg_t *dpsa = &args->zipa_dpsa;
+
+ dsl_props_set_sync(dpsa, tx);
+}
+
+static int
+zcp_synctask_inherit_prop(lua_State *state, boolean_t sync,
+ nvlist_t *err_details)
+{
+ int err;
+ zcp_inherit_prop_arg_t zipa = { 0 };
+ dsl_props_set_arg_t *dpsa = &zipa.zipa_dpsa;
+
+ const char *dsname = lua_tostring(state, 1);
+ const char *prop = lua_tostring(state, 2);
+
+ zipa.zipa_state = state;
+ zipa.zipa_prop = prop;
+ dpsa->dpsa_dsname = dsname;
+ dpsa->dpsa_source = ZPROP_SRC_INHERITED;
+ dpsa->dpsa_props = fnvlist_alloc();
+ fnvlist_add_boolean(dpsa->dpsa_props, prop);
+
+ zcp_cleanup_handler_t *zch = zcp_register_cleanup(state,
+ (zcp_cleanup_t *)&fnvlist_free, dpsa->dpsa_props);
+
+ err = zcp_sync_task(state, zcp_synctask_inherit_prop_check,
+ zcp_synctask_inherit_prop_sync, &zipa, sync, dsname);
+
+ zcp_deregister_cleanup(state, zch);
+ fnvlist_free(dpsa->dpsa_props);
+
+ return (err);
+}
+
static int
zcp_synctask_wrapper(lua_State *state)
{
@@ -343,6 +428,7 @@ zcp_load_synctask_lib(lua_State *state, boolean_t sync)
&zcp_synctask_promote_info,
&zcp_synctask_rollback_info,
&zcp_synctask_snapshot_info,
+ &zcp_synctask_inherit_prop_info,
NULL
};
diff --git a/tests/runfiles/common.run b/tests/runfiles/common.run
index 4342662e7..f93f6479a 100644
--- a/tests/runfiles/common.run
+++ b/tests/runfiles/common.run
@@ -80,7 +80,7 @@ tags = ['functional', 'channel_program', 'lua_core']
tests = ['tst.destroy_fs', 'tst.destroy_snap', 'tst.get_count_and_limit',
'tst.get_index_props', 'tst.get_mountpoint', 'tst.get_neg',
'tst.get_number_props', 'tst.get_string_props', 'tst.get_type',
- 'tst.get_userquota', 'tst.get_written', 'tst.list_bookmarks',
+ 'tst.get_userquota', 'tst.get_written', 'tst.inherit', 'tst.list_bookmarks',
'tst.list_children', 'tst.list_clones', 'tst.list_holds',
'tst.list_snapshots', 'tst.list_system_props',
'tst.list_user_props', 'tst.parse_args_neg','tst.promote_conflict',
diff --git a/tests/zfs-tests/tests/functional/channel_program/synctask_core/Makefile.am b/tests/zfs-tests/tests/functional/channel_program/synctask_core/Makefile.am
index d9894f682..5330edaf2 100644
--- a/tests/zfs-tests/tests/functional/channel_program/synctask_core/Makefile.am
+++ b/tests/zfs-tests/tests/functional/channel_program/synctask_core/Makefile.am
@@ -13,6 +13,7 @@ dist_pkgdata_SCRIPTS = \
tst.get_type.ksh \
tst.get_userquota.ksh \
tst.get_written.ksh \
+ tst.inherit.ksh \
tst.list_bookmarks.ksh \
tst.list_children.ksh \
tst.list_clones.ksh \
diff --git a/tests/zfs-tests/tests/functional/channel_program/synctask_core/tst.inherit.ksh b/tests/zfs-tests/tests/functional/channel_program/synctask_core/tst.inherit.ksh
new file mode 100755
index 000000000..e199b4c8b
--- /dev/null
+++ b/tests/zfs-tests/tests/functional/channel_program/synctask_core/tst.inherit.ksh
@@ -0,0 +1,39 @@
+#!/bin/ksh -p
+#
+# This file and its contents are supplied under the terms of the
+# Common Development and Distribution License ("CDDL"), version 1.0.
+# You may only use this file in accordance with the terms of version
+# 1.0 of the CDDL.
+#
+# A full copy of the text of the CDDL should have accompanied this
+# source. A copy of the CDDL is also available via the Internet at
+# http://www.illumos.org/license/CDDL.
+#
+
+#
+# Copyright 2020 Joyent, Inc.
+#
+
+. $STF_SUITE/tests/functional/channel_program/channel_common.kshlib
+
+verify_runnable "global"
+
+fs=$TESTPOOL/$TESTFS
+testprop="com.joyent:testprop"
+testval="testval"
+
+log_must dataset_setprop $fs $testprop $testval
+log_must_program_sync $TESTPOOL - $fs $testprop <<-EOF
+ arg = ...
+ fs = arg["argv"][1]
+ prop = arg["argv"][2]
+ err = zfs.sync.inherit(fs, prop)
+ msg = "resetting " .. prop .. " on " .. fs .. " err=" .. err
+ return msg
+EOF
+
+
+prop=$(get_prop $testprop $fs)
+[[ "$prop" == "-" ]] || log_fail "Property still set after inheriting"
+
+log_pass "Inherit/clear property with channel program works."