xref: /illumos-gate/usr/src/uts/common/fs/zfs/sys/dsl_prop.h (revision 2d85dedb)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
23  * Copyright (c) 2012 by Delphix. All rights reserved.
24  * Copyright 2019 Joyent, Inc.
25  */
26 
27 #ifndef	_SYS_DSL_PROP_H
28 #define	_SYS_DSL_PROP_H
29 
30 #include <sys/dmu.h>
31 #include <sys/dsl_pool.h>
32 #include <sys/zfs_context.h>
33 #include <sys/dsl_synctask.h>
34 
35 #ifdef	__cplusplus
36 extern "C" {
37 #endif
38 
39 struct dsl_dataset;
40 struct dsl_dir;
41 
42 /* The callback func may not call into the DMU or DSL! */
43 typedef void (dsl_prop_changed_cb_t)(void *arg, uint64_t newval);
44 
45 typedef struct dsl_prop_record {
46 	list_node_t pr_node; /* link on dd_props */
47 	const char *pr_propname;
48 	list_t pr_cbs;
49 } dsl_prop_record_t;
50 
51 typedef struct dsl_prop_cb_record {
52 	list_node_t cbr_pr_node; /* link on pr_cbs */
53 	list_node_t cbr_ds_node; /* link on ds_prop_cbs */
54 	dsl_prop_record_t *cbr_pr;
55 	struct dsl_dataset *cbr_ds;
56 	dsl_prop_changed_cb_t *cbr_func;
57 	void *cbr_arg;
58 } dsl_prop_cb_record_t;
59 
60 typedef struct dsl_props_arg {
61 	nvlist_t *pa_props;
62 	zprop_source_t pa_source;
63 } dsl_props_arg_t;
64 
65 typedef struct dsl_props_set_arg {
66 	const char *dpsa_dsname;
67 	zprop_source_t dpsa_source;
68 	nvlist_t *dpsa_props;
69 } dsl_props_set_arg_t;
70 
71 void dsl_prop_init(dsl_dir_t *dd);
72 void dsl_prop_fini(dsl_dir_t *dd);
73 int dsl_prop_register(struct dsl_dataset *ds, const char *propname,
74     dsl_prop_changed_cb_t *callback, void *cbarg);
75 void dsl_prop_unregister_all(struct dsl_dataset *ds, void *cbarg);
76 void dsl_prop_notify_all(struct dsl_dir *dd);
77 boolean_t dsl_prop_hascb(struct dsl_dataset *ds);
78 
79 int dsl_prop_get(const char *ddname, const char *propname,
80     int intsz, int numints, void *buf, char *setpoint);
81 int dsl_prop_get_integer(const char *ddname, const char *propname,
82     uint64_t *valuep, char *setpoint);
83 int dsl_prop_get_all(objset_t *os, nvlist_t **nvp);
84 int dsl_prop_get_received(const char *dsname, nvlist_t **nvp);
85 int dsl_prop_get_ds(struct dsl_dataset *ds, const char *propname,
86     int intsz, int numints, void *buf, char *setpoint);
87 int dsl_prop_get_int_ds(struct dsl_dataset *ds, const char *propname,
88     uint64_t *valuep);
89 int dsl_prop_get_dd(struct dsl_dir *dd, const char *propname,
90     int intsz, int numints, void *buf, char *setpoint,
91     boolean_t snapshot);
92 
93 int dsl_props_set_check(void *arg, dmu_tx_t *tx);
94 void dsl_props_set_sync(void *arg, dmu_tx_t *tx);
95 void dsl_props_set_sync_impl(struct dsl_dataset *ds, zprop_source_t source,
96     nvlist_t *props, dmu_tx_t *tx);
97 void dsl_prop_set_sync_impl(struct dsl_dataset *ds, const char *propname,
98     zprop_source_t source, int intsz, int numints, const void *value,
99     dmu_tx_t *tx);
100 int dsl_props_set(const char *dsname, zprop_source_t source, nvlist_t *nvl);
101 int dsl_prop_set_int(const char *dsname, const char *propname,
102     zprop_source_t source, uint64_t value);
103 int dsl_prop_set_string(const char *dsname, const char *propname,
104     zprop_source_t source, const char *value);
105 int dsl_prop_inherit(const char *dsname, const char *propname,
106     zprop_source_t source);
107 
108 int dsl_prop_predict(dsl_dir_t *dd, const char *propname,
109     zprop_source_t source, uint64_t value, uint64_t *newvalp);
110 
111 /* flag first receive on or after SPA_VERSION_RECVD_PROPS */
112 boolean_t dsl_prop_get_hasrecvd(const char *dsname);
113 int dsl_prop_set_hasrecvd(const char *dsname);
114 void dsl_prop_unset_hasrecvd(const char *dsname);
115 
116 void dsl_prop_nvlist_add_uint64(nvlist_t *nv, zfs_prop_t prop, uint64_t value);
117 void dsl_prop_nvlist_add_string(nvlist_t *nv,
118     zfs_prop_t prop, const char *value);
119 
120 #ifdef	__cplusplus
121 }
122 #endif
123 
124 #endif	/* _SYS_DSL_PROP_H */
125