[GFS2] Bug fix to gfs2_readpages()
[deliverable/linux.git] / fs / gfs2 / ondisk.c
CommitLineData
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1/*
2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
3a8a9a10 3 * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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4 *
5 * This copyrighted material is made available to anyone wishing to use,
6 * modify, copy, or redistribute it subject to the terms and conditions
7 * of the GNU General Public License v.2.
8 */
9
10#include <linux/sched.h>
11#include <linux/slab.h>
12#include <linux/spinlock.h>
13#include <linux/completion.h>
14#include <linux/buffer_head.h>
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15
16#include "gfs2.h"
17#include <linux/gfs2_ondisk.h>
18
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19#define pv(struct, member, fmt) printk(KERN_INFO " "#member" = "fmt"\n", \
20 struct->member);
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21
22/*
23 * gfs2_xxx_in - read in an xxx struct
24 * first arg: the cpu-order structure
25 * buf: the disk-order buffer
26 *
27 * gfs2_xxx_out - write out an xxx struct
28 * first arg: the cpu-order structure
29 * buf: the disk-order buffer
30 *
31 * gfs2_xxx_print - print out an xxx struct
32 * first arg: the cpu-order structure
33 */
34
35void gfs2_inum_in(struct gfs2_inum *no, char *buf)
36{
37 struct gfs2_inum *str = (struct gfs2_inum *)buf;
38
39 no->no_formal_ino = be64_to_cpu(str->no_formal_ino);
40 no->no_addr = be64_to_cpu(str->no_addr);
41}
42
c752666c 43void gfs2_inum_out(const struct gfs2_inum *no, char *buf)
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44{
45 struct gfs2_inum *str = (struct gfs2_inum *)buf;
46
47 str->no_formal_ino = cpu_to_be64(no->no_formal_ino);
48 str->no_addr = cpu_to_be64(no->no_addr);
49}
50
08bc2dbc 51static void gfs2_inum_print(struct gfs2_inum *no)
b3b94faa 52{
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53 printk(KERN_INFO " no_formal_ino = %llu\n", (unsigned long long)no->no_formal_ino);
54 printk(KERN_INFO " no_addr = %llu\n", (unsigned long long)no->no_addr);
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55}
56
b96ca4fa 57static void gfs2_meta_header_in(struct gfs2_meta_header *mh, char *buf)
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58{
59 struct gfs2_meta_header *str = (struct gfs2_meta_header *)buf;
60
61 mh->mh_magic = be32_to_cpu(str->mh_magic);
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62 mh->mh_type = be32_to_cpu(str->mh_type);
63 mh->mh_format = be32_to_cpu(str->mh_format);
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64}
65
b96ca4fa 66static void gfs2_meta_header_out(struct gfs2_meta_header *mh, char *buf)
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67{
68 struct gfs2_meta_header *str = (struct gfs2_meta_header *)buf;
69
70 str->mh_magic = cpu_to_be32(mh->mh_magic);
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71 str->mh_type = cpu_to_be32(mh->mh_type);
72 str->mh_format = cpu_to_be32(mh->mh_format);
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73}
74
08bc2dbc 75static void gfs2_meta_header_print(struct gfs2_meta_header *mh)
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76{
77 pv(mh, mh_magic, "0x%.8X");
78 pv(mh, mh_type, "%u");
79 pv(mh, mh_format, "%u");
80}
81
82void gfs2_sb_in(struct gfs2_sb *sb, char *buf)
83{
84 struct gfs2_sb *str = (struct gfs2_sb *)buf;
85
86 gfs2_meta_header_in(&sb->sb_header, buf);
87
88 sb->sb_fs_format = be32_to_cpu(str->sb_fs_format);
89 sb->sb_multihost_format = be32_to_cpu(str->sb_multihost_format);
90 sb->sb_bsize = be32_to_cpu(str->sb_bsize);
91 sb->sb_bsize_shift = be32_to_cpu(str->sb_bsize_shift);
92
93 gfs2_inum_in(&sb->sb_master_dir, (char *)&str->sb_master_dir);
94 gfs2_inum_in(&sb->sb_root_dir, (char *)&str->sb_root_dir);
95
96 memcpy(sb->sb_lockproto, str->sb_lockproto, GFS2_LOCKNAME_LEN);
97 memcpy(sb->sb_locktable, str->sb_locktable, GFS2_LOCKNAME_LEN);
98}
99
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100void gfs2_rindex_in(struct gfs2_rindex *ri, char *buf)
101{
102 struct gfs2_rindex *str = (struct gfs2_rindex *)buf;
103
104 ri->ri_addr = be64_to_cpu(str->ri_addr);
105 ri->ri_length = be32_to_cpu(str->ri_length);
106 ri->ri_data0 = be64_to_cpu(str->ri_data0);
107 ri->ri_data = be32_to_cpu(str->ri_data);
108 ri->ri_bitbytes = be32_to_cpu(str->ri_bitbytes);
109
110}
111
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112void gfs2_rindex_print(struct gfs2_rindex *ri)
113{
382066da 114 printk(KERN_INFO " ri_addr = %llu\n", (unsigned long long)ri->ri_addr);
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115 pv(ri, ri_length, "%u");
116
382066da 117 printk(KERN_INFO " ri_data0 = %llu\n", (unsigned long long)ri->ri_data0);
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118 pv(ri, ri_data, "%u");
119
120 pv(ri, ri_bitbytes, "%u");
121}
122
123void gfs2_rgrp_in(struct gfs2_rgrp *rg, char *buf)
124{
125 struct gfs2_rgrp *str = (struct gfs2_rgrp *)buf;
126
127 gfs2_meta_header_in(&rg->rg_header, buf);
128 rg->rg_flags = be32_to_cpu(str->rg_flags);
129 rg->rg_free = be32_to_cpu(str->rg_free);
130 rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
131}
132
133void gfs2_rgrp_out(struct gfs2_rgrp *rg, char *buf)
134{
135 struct gfs2_rgrp *str = (struct gfs2_rgrp *)buf;
136
137 gfs2_meta_header_out(&rg->rg_header, buf);
138 str->rg_flags = cpu_to_be32(rg->rg_flags);
139 str->rg_free = cpu_to_be32(rg->rg_free);
140 str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
141
142 memset(&str->rg_reserved, 0, sizeof(str->rg_reserved));
143}
144
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145void gfs2_quota_in(struct gfs2_quota *qu, char *buf)
146{
147 struct gfs2_quota *str = (struct gfs2_quota *)buf;
148
149 qu->qu_limit = be64_to_cpu(str->qu_limit);
150 qu->qu_warn = be64_to_cpu(str->qu_warn);
151 qu->qu_value = be64_to_cpu(str->qu_value);
152}
153
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154void gfs2_dinode_in(struct gfs2_dinode *di, char *buf)
155{
156 struct gfs2_dinode *str = (struct gfs2_dinode *)buf;
157
158 gfs2_meta_header_in(&di->di_header, buf);
159 gfs2_inum_in(&di->di_num, (char *)&str->di_num);
160
161 di->di_mode = be32_to_cpu(str->di_mode);
162 di->di_uid = be32_to_cpu(str->di_uid);
163 di->di_gid = be32_to_cpu(str->di_gid);
164 di->di_nlink = be32_to_cpu(str->di_nlink);
165 di->di_size = be64_to_cpu(str->di_size);
166 di->di_blocks = be64_to_cpu(str->di_blocks);
167 di->di_atime = be64_to_cpu(str->di_atime);
168 di->di_mtime = be64_to_cpu(str->di_mtime);
169 di->di_ctime = be64_to_cpu(str->di_ctime);
170 di->di_major = be32_to_cpu(str->di_major);
171 di->di_minor = be32_to_cpu(str->di_minor);
172
173 di->di_goal_meta = be64_to_cpu(str->di_goal_meta);
174 di->di_goal_data = be64_to_cpu(str->di_goal_data);
175
176 di->di_flags = be32_to_cpu(str->di_flags);
177 di->di_payload_format = be32_to_cpu(str->di_payload_format);
178 di->di_height = be16_to_cpu(str->di_height);
179
180 di->di_depth = be16_to_cpu(str->di_depth);
181 di->di_entries = be32_to_cpu(str->di_entries);
182
183 di->di_eattr = be64_to_cpu(str->di_eattr);
184
185}
186
187void gfs2_dinode_out(struct gfs2_dinode *di, char *buf)
188{
189 struct gfs2_dinode *str = (struct gfs2_dinode *)buf;
190
191 gfs2_meta_header_out(&di->di_header, buf);
192 gfs2_inum_out(&di->di_num, (char *)&str->di_num);
193
194 str->di_mode = cpu_to_be32(di->di_mode);
195 str->di_uid = cpu_to_be32(di->di_uid);
196 str->di_gid = cpu_to_be32(di->di_gid);
197 str->di_nlink = cpu_to_be32(di->di_nlink);
198 str->di_size = cpu_to_be64(di->di_size);
199 str->di_blocks = cpu_to_be64(di->di_blocks);
200 str->di_atime = cpu_to_be64(di->di_atime);
201 str->di_mtime = cpu_to_be64(di->di_mtime);
202 str->di_ctime = cpu_to_be64(di->di_ctime);
203 str->di_major = cpu_to_be32(di->di_major);
204 str->di_minor = cpu_to_be32(di->di_minor);
205
206 str->di_goal_meta = cpu_to_be64(di->di_goal_meta);
207 str->di_goal_data = cpu_to_be64(di->di_goal_data);
208
209 str->di_flags = cpu_to_be32(di->di_flags);
210 str->di_payload_format = cpu_to_be32(di->di_payload_format);
211 str->di_height = cpu_to_be16(di->di_height);
212
213 str->di_depth = cpu_to_be16(di->di_depth);
214 str->di_entries = cpu_to_be32(di->di_entries);
215
216 str->di_eattr = cpu_to_be64(di->di_eattr);
217
218}
219
220void gfs2_dinode_print(struct gfs2_dinode *di)
221{
222 gfs2_meta_header_print(&di->di_header);
223 gfs2_inum_print(&di->di_num);
224
225 pv(di, di_mode, "0%o");
226 pv(di, di_uid, "%u");
227 pv(di, di_gid, "%u");
228 pv(di, di_nlink, "%u");
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229 printk(KERN_INFO " di_size = %llu\n", (unsigned long long)di->di_size);
230 printk(KERN_INFO " di_blocks = %llu\n", (unsigned long long)di->di_blocks);
231 printk(KERN_INFO " di_atime = %lld\n", (long long)di->di_atime);
232 printk(KERN_INFO " di_mtime = %lld\n", (long long)di->di_mtime);
233 printk(KERN_INFO " di_ctime = %lld\n", (long long)di->di_ctime);
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234 pv(di, di_major, "%u");
235 pv(di, di_minor, "%u");
236
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237 printk(KERN_INFO " di_goal_meta = %llu\n", (unsigned long long)di->di_goal_meta);
238 printk(KERN_INFO " di_goal_data = %llu\n", (unsigned long long)di->di_goal_data);
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239
240 pv(di, di_flags, "0x%.8X");
241 pv(di, di_payload_format, "%u");
242 pv(di, di_height, "%u");
243
244 pv(di, di_depth, "%u");
245 pv(di, di_entries, "%u");
246
382066da 247 printk(KERN_INFO " di_eattr = %llu\n", (unsigned long long)di->di_eattr);
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248}
249
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250void gfs2_log_header_in(struct gfs2_log_header *lh, char *buf)
251{
252 struct gfs2_log_header *str = (struct gfs2_log_header *)buf;
253
254 gfs2_meta_header_in(&lh->lh_header, buf);
255 lh->lh_sequence = be64_to_cpu(str->lh_sequence);
256 lh->lh_flags = be32_to_cpu(str->lh_flags);
257 lh->lh_tail = be32_to_cpu(str->lh_tail);
258 lh->lh_blkno = be32_to_cpu(str->lh_blkno);
259 lh->lh_hash = be32_to_cpu(str->lh_hash);
260}
261
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262void gfs2_inum_range_in(struct gfs2_inum_range *ir, char *buf)
263{
264 struct gfs2_inum_range *str = (struct gfs2_inum_range *)buf;
265
266 ir->ir_start = be64_to_cpu(str->ir_start);
267 ir->ir_length = be64_to_cpu(str->ir_length);
268}
269
270void gfs2_inum_range_out(struct gfs2_inum_range *ir, char *buf)
271{
272 struct gfs2_inum_range *str = (struct gfs2_inum_range *)buf;
273
274 str->ir_start = cpu_to_be64(ir->ir_start);
275 str->ir_length = cpu_to_be64(ir->ir_length);
276}
277
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278void gfs2_statfs_change_in(struct gfs2_statfs_change *sc, char *buf)
279{
280 struct gfs2_statfs_change *str = (struct gfs2_statfs_change *)buf;
281
282 sc->sc_total = be64_to_cpu(str->sc_total);
283 sc->sc_free = be64_to_cpu(str->sc_free);
284 sc->sc_dinodes = be64_to_cpu(str->sc_dinodes);
285}
286
287void gfs2_statfs_change_out(struct gfs2_statfs_change *sc, char *buf)
288{
289 struct gfs2_statfs_change *str = (struct gfs2_statfs_change *)buf;
290
291 str->sc_total = cpu_to_be64(sc->sc_total);
292 str->sc_free = cpu_to_be64(sc->sc_free);
293 str->sc_dinodes = cpu_to_be64(sc->sc_dinodes);
294}
295
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296void gfs2_quota_change_in(struct gfs2_quota_change *qc, char *buf)
297{
298 struct gfs2_quota_change *str = (struct gfs2_quota_change *)buf;
299
300 qc->qc_change = be64_to_cpu(str->qc_change);
301 qc->qc_flags = be32_to_cpu(str->qc_flags);
302 qc->qc_id = be32_to_cpu(str->qc_id);
303}
304
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