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 2009 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _SYS_DSL_PROP_H 27 #define _SYS_DSL_PROP_H 28 29 #include <sys/dmu.h> 30 #include <sys/dsl_pool.h> 31 #include <sys/zfs_context.h> 32 #include <sys/dsl_synctask.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 struct dsl_dataset; 39 struct dsl_dir; 40 41 /* The callback func may not call into the DMU or DSL! */ 42 typedef void (dsl_prop_changed_cb_t)(void *arg, uint64_t newval); 43 44 typedef struct dsl_prop_cb_record { 45 list_node_t cbr_node; /* link on dd_prop_cbs */ 46 struct dsl_dataset *cbr_ds; 47 const char *cbr_propname; 48 dsl_prop_changed_cb_t *cbr_func; 49 void *cbr_arg; 50 } dsl_prop_cb_record_t; 51 52 typedef struct dsl_props_arg { 53 nvlist_t *pa_props; 54 zprop_source_t pa_source; 55 } dsl_props_arg_t; 56 57 typedef struct dsl_prop_set_arg { 58 const char *psa_name; 59 zprop_source_t psa_source; 60 int psa_intsz; 61 int psa_numints; 62 const void *psa_value; 63 64 /* 65 * Used to handle the special requirements of the quota and reservation 66 * properties. 67 */ 68 uint64_t psa_effective_value; 69 } dsl_prop_setarg_t; 70 71 int dsl_prop_register(struct dsl_dataset *ds, const char *propname, 72 dsl_prop_changed_cb_t *callback, void *cbarg); 73 int dsl_prop_unregister(struct dsl_dataset *ds, const char *propname, 74 dsl_prop_changed_cb_t *callback, void *cbarg); 75 int dsl_prop_numcb(struct dsl_dataset *ds); 76 77 int dsl_prop_get(const char *ddname, const char *propname, 78 int intsz, int numints, void *buf, char *setpoint); 79 int dsl_prop_get_integer(const char *ddname, const char *propname, 80 uint64_t *valuep, char *setpoint); 81 int dsl_prop_get_all(objset_t *os, nvlist_t **nvp); 82 int dsl_prop_get_received(objset_t *os, nvlist_t **nvp); 83 int dsl_prop_get_ds(struct dsl_dataset *ds, const char *propname, 84 int intsz, int numints, void *buf, char *setpoint); 85 int dsl_prop_get_dd(struct dsl_dir *dd, const char *propname, 86 int intsz, int numints, void *buf, char *setpoint, 87 boolean_t snapshot); 88 89 dsl_syncfunc_t dsl_props_set_sync; 90 int dsl_prop_set(const char *ddname, const char *propname, 91 zprop_source_t source, int intsz, int numints, const void *buf); 92 int dsl_props_set(const char *dsname, zprop_source_t source, nvlist_t *nvl); 93 void dsl_dir_prop_set_uint64_sync(dsl_dir_t *dd, const char *name, uint64_t val, 94 cred_t *cr, dmu_tx_t *tx); 95 96 void dsl_prop_setarg_init_uint64(dsl_prop_setarg_t *psa, const char *propname, 97 zprop_source_t source, uint64_t *value); 98 int dsl_prop_predict_sync(dsl_dir_t *dd, dsl_prop_setarg_t *psa); 99 #ifdef ZFS_DEBUG 100 void dsl_prop_check_prediction(dsl_dir_t *dd, dsl_prop_setarg_t *psa); 101 #define DSL_PROP_CHECK_PREDICTION(dd, psa) \ 102 dsl_prop_check_prediction((dd), (psa)) 103 #else 104 #define DSL_PROP_CHECK_PREDICTION(dd, psa) /* nothing */ 105 #endif 106 107 /* flag first receive on or after SPA_VERSION_RECVD_PROPS */ 108 boolean_t dsl_prop_get_hasrecvd(objset_t *os); 109 void dsl_prop_set_hasrecvd(objset_t *os); 110 void dsl_prop_unset_hasrecvd(objset_t *os); 111 112 void dsl_prop_nvlist_add_uint64(nvlist_t *nv, zfs_prop_t prop, uint64_t value); 113 void dsl_prop_nvlist_add_string(nvlist_t *nv, 114 zfs_prop_t prop, const char *value); 115 116 #ifdef __cplusplus 117 } 118 #endif 119 120 #endif /* _SYS_DSL_PROP_H */ 121