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) 2013 by Delphix. All rights reserved.
24 */
25
26 #ifndef _SYS_ZAP_IMPL_H
27 #define _SYS_ZAP_IMPL_H
28
29 #include <sys/zap.h>
30 #include <sys/zfs_context.h>
31 #include <sys/avl.h>
32
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36
37 extern int fzap_default_block_shift;
38
39 #define ZAP_MAGIC 0x2F52AB2ABULL
40
41 #define FZAP_BLOCK_SHIFT(zap) ((zap)->zap_f.zap_block_shift)
42
43 #define MZAP_ENT_LEN 64
123 uint64_t zt_blks_copied; /* number source blocks copied */
124 } zap_ptrtbl;
125
126 uint64_t zap_freeblk; /* the next free block */
127 uint64_t zap_num_leafs; /* number of leafs */
128 uint64_t zap_num_entries; /* number of entries */
129 uint64_t zap_salt; /* salt to stir into hash function */
130 uint64_t zap_normflags; /* flags for u8_textprep_str() */
131 uint64_t zap_flags; /* zap_flags_t */
132 /*
133 * This structure is followed by padding, and then the embedded
134 * pointer table. The embedded pointer table takes up second
135 * half of the block. It is accessed using the
136 * ZAP_EMBEDDED_PTRTBL_ENT() macro.
137 */
138 } zap_phys_t;
139
140 typedef struct zap_table_phys zap_table_phys_t;
141
142 typedef struct zap {
143 objset_t *zap_objset;
144 uint64_t zap_object;
145 struct dmu_buf *zap_dbuf;
146 krwlock_t zap_rwlock;
147 boolean_t zap_ismicro;
148 int zap_normflags;
149 uint64_t zap_salt;
150 union {
151 struct {
152 /*
153 * zap_num_entries_mtx protects
154 * zap_num_entries
155 */
156 kmutex_t zap_num_entries_mtx;
157 int zap_block_shift;
158 } zap_fat;
159 struct {
160 int16_t zap_num_entries;
161 int16_t zap_num_chunks;
162 int16_t zap_alloc_next;
179
180 typedef struct zap_name {
181 zap_t *zn_zap;
182 int zn_key_intlen;
183 const void *zn_key_orig;
184 int zn_key_orig_numints;
185 const void *zn_key_norm;
186 int zn_key_norm_numints;
187 uint64_t zn_hash;
188 matchtype_t zn_matchtype;
189 char zn_normbuf[ZAP_MAXNAMELEN];
190 } zap_name_t;
191
192 #define zap_f zap_u.zap_fat
193 #define zap_m zap_u.zap_micro
194
195 boolean_t zap_match(zap_name_t *zn, const char *matchname);
196 int zap_lockdir(objset_t *os, uint64_t obj, dmu_tx_t *tx,
197 krw_t lti, boolean_t fatreader, boolean_t adding, zap_t **zapp);
198 void zap_unlockdir(zap_t *zap);
199 void zap_evict(dmu_buf_t *db, void *vmzap);
200 zap_name_t *zap_name_alloc(zap_t *zap, const char *key, matchtype_t mt);
201 void zap_name_free(zap_name_t *zn);
202 int zap_hashbits(zap_t *zap);
203 uint32_t zap_maxcd(zap_t *zap);
204 uint64_t zap_getflags(zap_t *zap);
205
206 #define ZAP_HASH_IDX(hash, n) (((n) == 0) ? 0 : ((hash) >> (64 - (n))))
207
208 void fzap_byteswap(void *buf, size_t size);
209 int fzap_count(zap_t *zap, uint64_t *count);
210 int fzap_lookup(zap_name_t *zn,
211 uint64_t integer_size, uint64_t num_integers, void *buf,
212 char *realname, int rn_len, boolean_t *normalization_conflictp);
213 void fzap_prefetch(zap_name_t *zn);
214 int fzap_count_write(zap_name_t *zn, int add, uint64_t *towrite,
215 uint64_t *tooverwrite);
216 int fzap_add(zap_name_t *zn, uint64_t integer_size, uint64_t num_integers,
217 const void *val, dmu_tx_t *tx);
218 int fzap_update(zap_name_t *zn,
219 int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx);
|
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) 2013 by Delphix. All rights reserved.
24 * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
25 */
26
27 #ifndef _SYS_ZAP_IMPL_H
28 #define _SYS_ZAP_IMPL_H
29
30 #include <sys/zap.h>
31 #include <sys/zfs_context.h>
32 #include <sys/avl.h>
33
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37
38 extern int fzap_default_block_shift;
39
40 #define ZAP_MAGIC 0x2F52AB2ABULL
41
42 #define FZAP_BLOCK_SHIFT(zap) ((zap)->zap_f.zap_block_shift)
43
44 #define MZAP_ENT_LEN 64
124 uint64_t zt_blks_copied; /* number source blocks copied */
125 } zap_ptrtbl;
126
127 uint64_t zap_freeblk; /* the next free block */
128 uint64_t zap_num_leafs; /* number of leafs */
129 uint64_t zap_num_entries; /* number of entries */
130 uint64_t zap_salt; /* salt to stir into hash function */
131 uint64_t zap_normflags; /* flags for u8_textprep_str() */
132 uint64_t zap_flags; /* zap_flags_t */
133 /*
134 * This structure is followed by padding, and then the embedded
135 * pointer table. The embedded pointer table takes up second
136 * half of the block. It is accessed using the
137 * ZAP_EMBEDDED_PTRTBL_ENT() macro.
138 */
139 } zap_phys_t;
140
141 typedef struct zap_table_phys zap_table_phys_t;
142
143 typedef struct zap {
144 dmu_buf_user_t zap_dbu;
145 objset_t *zap_objset;
146 uint64_t zap_object;
147 struct dmu_buf *zap_dbuf;
148 krwlock_t zap_rwlock;
149 boolean_t zap_ismicro;
150 int zap_normflags;
151 uint64_t zap_salt;
152 union {
153 struct {
154 /*
155 * zap_num_entries_mtx protects
156 * zap_num_entries
157 */
158 kmutex_t zap_num_entries_mtx;
159 int zap_block_shift;
160 } zap_fat;
161 struct {
162 int16_t zap_num_entries;
163 int16_t zap_num_chunks;
164 int16_t zap_alloc_next;
181
182 typedef struct zap_name {
183 zap_t *zn_zap;
184 int zn_key_intlen;
185 const void *zn_key_orig;
186 int zn_key_orig_numints;
187 const void *zn_key_norm;
188 int zn_key_norm_numints;
189 uint64_t zn_hash;
190 matchtype_t zn_matchtype;
191 char zn_normbuf[ZAP_MAXNAMELEN];
192 } zap_name_t;
193
194 #define zap_f zap_u.zap_fat
195 #define zap_m zap_u.zap_micro
196
197 boolean_t zap_match(zap_name_t *zn, const char *matchname);
198 int zap_lockdir(objset_t *os, uint64_t obj, dmu_tx_t *tx,
199 krw_t lti, boolean_t fatreader, boolean_t adding, zap_t **zapp);
200 void zap_unlockdir(zap_t *zap);
201 void zap_evict(void *dbu);
202 zap_name_t *zap_name_alloc(zap_t *zap, const char *key, matchtype_t mt);
203 void zap_name_free(zap_name_t *zn);
204 int zap_hashbits(zap_t *zap);
205 uint32_t zap_maxcd(zap_t *zap);
206 uint64_t zap_getflags(zap_t *zap);
207
208 #define ZAP_HASH_IDX(hash, n) (((n) == 0) ? 0 : ((hash) >> (64 - (n))))
209
210 void fzap_byteswap(void *buf, size_t size);
211 int fzap_count(zap_t *zap, uint64_t *count);
212 int fzap_lookup(zap_name_t *zn,
213 uint64_t integer_size, uint64_t num_integers, void *buf,
214 char *realname, int rn_len, boolean_t *normalization_conflictp);
215 void fzap_prefetch(zap_name_t *zn);
216 int fzap_count_write(zap_name_t *zn, int add, uint64_t *towrite,
217 uint64_t *tooverwrite);
218 int fzap_add(zap_name_t *zn, uint64_t integer_size, uint64_t num_integers,
219 const void *val, dmu_tx_t *tx);
220 int fzap_update(zap_name_t *zn,
221 int integer_size, uint64_t num_integers, const void *val, dmu_tx_t *tx);
|