1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * linux/fs/ufs/util.h 3 * linux/fs/ufs/util.h
4 * 4 *
5 * Copyright (C) 1998 5 * Copyright (C) 1998
6 * Daniel Pirkl <daniel.pirkl@email.cz> 6 * Daniel Pirkl <daniel.pirkl@email.cz>
7 * Charles University, Faculty of Mathematics 7 * Charles University, Faculty of Mathematics and Physics
8 */ 8 */
9 9
10 #include <linux/buffer_head.h> 10 #include <linux/buffer_head.h>
11 #include <linux/fs.h> 11 #include <linux/fs.h>
12 #include "swab.h" 12 #include "swab.h"
13 13
>> 14
>> 15 /*
>> 16 * some useful macros
>> 17 */
>> 18 #define in_range(b,first,len) ((b)>=(first)&&(b)<(first)+(len))
>> 19
14 /* 20 /*
15 * functions used for retyping 21 * functions used for retyping
16 */ 22 */
17 static inline struct ufs_buffer_head *UCPI_UBH 23 static inline struct ufs_buffer_head *UCPI_UBH(struct ufs_cg_private_info *cpi)
18 { 24 {
19 return &cpi->c_ubh; 25 return &cpi->c_ubh;
20 } 26 }
21 static inline struct ufs_buffer_head *USPI_UBH 27 static inline struct ufs_buffer_head *USPI_UBH(struct ufs_sb_private_info *spi)
22 { 28 {
23 return &spi->s_ubh; 29 return &spi->s_ubh;
24 } 30 }
25 31
26 32
27 33
28 /* 34 /*
29 * macros used for accessing structures 35 * macros used for accessing structures
30 */ 36 */
31 static inline s32 37 static inline s32
32 ufs_get_fs_state(struct super_block *sb, struc 38 ufs_get_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
33 struct ufs_super_block_third 39 struct ufs_super_block_third *usb3)
34 { 40 {
35 switch (UFS_SB(sb)->s_flags & UFS_ST_M 41 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
36 case UFS_ST_SUNOS: 42 case UFS_ST_SUNOS:
37 if (fs32_to_cpu(sb, usb3->fs_p 43 if (fs32_to_cpu(sb, usb3->fs_postblformat) == UFS_42POSTBLFMT)
38 return fs32_to_cpu(sb, 44 return fs32_to_cpu(sb, usb1->fs_u0.fs_sun.fs_state);
39 fallthrough; /* to UFS_ST_S 45 fallthrough; /* to UFS_ST_SUN */
40 case UFS_ST_SUN: 46 case UFS_ST_SUN:
41 return fs32_to_cpu(sb, usb3->f 47 return fs32_to_cpu(sb, usb3->fs_un2.fs_sun.fs_state);
42 case UFS_ST_SUNx86: 48 case UFS_ST_SUNx86:
43 return fs32_to_cpu(sb, usb1->f 49 return fs32_to_cpu(sb, usb1->fs_u1.fs_sunx86.fs_state);
44 case UFS_ST_44BSD: 50 case UFS_ST_44BSD:
45 default: 51 default:
46 return fs32_to_cpu(sb, usb3->f 52 return fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_state);
47 } 53 }
48 } 54 }
49 55
50 static inline void 56 static inline void
51 ufs_set_fs_state(struct super_block *sb, struc 57 ufs_set_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
52 struct ufs_super_block_third 58 struct ufs_super_block_third *usb3, s32 value)
53 { 59 {
54 switch (UFS_SB(sb)->s_flags & UFS_ST_M 60 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
55 case UFS_ST_SUNOS: 61 case UFS_ST_SUNOS:
56 if (fs32_to_cpu(sb, usb3->fs_p 62 if (fs32_to_cpu(sb, usb3->fs_postblformat) == UFS_42POSTBLFMT) {
57 usb1->fs_u0.fs_sun.fs_ 63 usb1->fs_u0.fs_sun.fs_state = cpu_to_fs32(sb, value);
58 break; 64 break;
59 } 65 }
60 fallthrough; /* to UFS_ST_S 66 fallthrough; /* to UFS_ST_SUN */
61 case UFS_ST_SUN: 67 case UFS_ST_SUN:
62 usb3->fs_un2.fs_sun.fs_state = 68 usb3->fs_un2.fs_sun.fs_state = cpu_to_fs32(sb, value);
63 break; 69 break;
64 case UFS_ST_SUNx86: 70 case UFS_ST_SUNx86:
65 usb1->fs_u1.fs_sunx86.fs_state 71 usb1->fs_u1.fs_sunx86.fs_state = cpu_to_fs32(sb, value);
66 break; 72 break;
67 case UFS_ST_44BSD: 73 case UFS_ST_44BSD:
68 usb3->fs_un2.fs_44.fs_state = 74 usb3->fs_un2.fs_44.fs_state = cpu_to_fs32(sb, value);
69 break; 75 break;
70 } 76 }
71 } 77 }
72 78
73 static inline u32 79 static inline u32
74 ufs_get_fs_npsect(struct super_block *sb, stru 80 ufs_get_fs_npsect(struct super_block *sb, struct ufs_super_block_first *usb1,
75 struct ufs_super_block_third 81 struct ufs_super_block_third *usb3)
76 { 82 {
77 if ((UFS_SB(sb)->s_flags & UFS_ST_MASK 83 if ((UFS_SB(sb)->s_flags & UFS_ST_MASK) == UFS_ST_SUNx86)
78 return fs32_to_cpu(sb, usb3->f 84 return fs32_to_cpu(sb, usb3->fs_un2.fs_sunx86.fs_npsect);
79 else 85 else
80 return fs32_to_cpu(sb, usb1->f 86 return fs32_to_cpu(sb, usb1->fs_u1.fs_sun.fs_npsect);
81 } 87 }
82 88
83 static inline u64 89 static inline u64
84 ufs_get_fs_qbmask(struct super_block *sb, stru 90 ufs_get_fs_qbmask(struct super_block *sb, struct ufs_super_block_third *usb3)
85 { 91 {
86 __fs64 tmp; 92 __fs64 tmp;
87 93
88 switch (UFS_SB(sb)->s_flags & UFS_ST_M 94 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
89 case UFS_ST_SUNOS: 95 case UFS_ST_SUNOS:
90 case UFS_ST_SUN: 96 case UFS_ST_SUN:
91 ((__fs32 *)&tmp)[0] = usb3->fs 97 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qbmask[0];
92 ((__fs32 *)&tmp)[1] = usb3->fs 98 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qbmask[1];
93 break; 99 break;
94 case UFS_ST_SUNx86: 100 case UFS_ST_SUNx86:
95 ((__fs32 *)&tmp)[0] = usb3->fs 101 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qbmask[0];
96 ((__fs32 *)&tmp)[1] = usb3->fs 102 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qbmask[1];
97 break; 103 break;
98 case UFS_ST_44BSD: 104 case UFS_ST_44BSD:
99 ((__fs32 *)&tmp)[0] = usb3->fs 105 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qbmask[0];
100 ((__fs32 *)&tmp)[1] = usb3->fs 106 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qbmask[1];
101 break; 107 break;
102 } 108 }
103 109
104 return fs64_to_cpu(sb, tmp); 110 return fs64_to_cpu(sb, tmp);
105 } 111 }
106 112
107 static inline u64 113 static inline u64
108 ufs_get_fs_qfmask(struct super_block *sb, stru 114 ufs_get_fs_qfmask(struct super_block *sb, struct ufs_super_block_third *usb3)
109 { 115 {
110 __fs64 tmp; 116 __fs64 tmp;
111 117
112 switch (UFS_SB(sb)->s_flags & UFS_ST_M 118 switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
113 case UFS_ST_SUNOS: 119 case UFS_ST_SUNOS:
114 case UFS_ST_SUN: 120 case UFS_ST_SUN:
115 ((__fs32 *)&tmp)[0] = usb3->fs 121 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qfmask[0];
116 ((__fs32 *)&tmp)[1] = usb3->fs 122 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qfmask[1];
117 break; 123 break;
118 case UFS_ST_SUNx86: 124 case UFS_ST_SUNx86:
119 ((__fs32 *)&tmp)[0] = usb3->fs 125 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qfmask[0];
120 ((__fs32 *)&tmp)[1] = usb3->fs 126 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qfmask[1];
121 break; 127 break;
122 case UFS_ST_44BSD: 128 case UFS_ST_44BSD:
123 ((__fs32 *)&tmp)[0] = usb3->fs 129 ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qfmask[0];
124 ((__fs32 *)&tmp)[1] = usb3->fs 130 ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qfmask[1];
125 break; 131 break;
126 } 132 }
127 133
128 return fs64_to_cpu(sb, tmp); 134 return fs64_to_cpu(sb, tmp);
129 } 135 }
130 136
131 static inline u16 137 static inline u16
132 ufs_get_de_namlen(struct super_block *sb, stru 138 ufs_get_de_namlen(struct super_block *sb, struct ufs_dir_entry *de)
133 { 139 {
134 if ((UFS_SB(sb)->s_flags & UFS_DE_MASK 140 if ((UFS_SB(sb)->s_flags & UFS_DE_MASK) == UFS_DE_OLD)
135 return fs16_to_cpu(sb, de->d_u 141 return fs16_to_cpu(sb, de->d_u.d_namlen);
136 else 142 else
137 return de->d_u.d_44.d_namlen; 143 return de->d_u.d_44.d_namlen; /* XXX this seems wrong */
138 } 144 }
139 145
140 static inline void 146 static inline void
141 ufs_set_de_namlen(struct super_block *sb, stru 147 ufs_set_de_namlen(struct super_block *sb, struct ufs_dir_entry *de, u16 value)
142 { 148 {
143 if ((UFS_SB(sb)->s_flags & UFS_DE_MASK 149 if ((UFS_SB(sb)->s_flags & UFS_DE_MASK) == UFS_DE_OLD)
144 de->d_u.d_namlen = cpu_to_fs16 150 de->d_u.d_namlen = cpu_to_fs16(sb, value);
145 else 151 else
146 de->d_u.d_44.d_namlen = value; 152 de->d_u.d_44.d_namlen = value; /* XXX this seems wrong */
147 } 153 }
148 154
149 static inline void 155 static inline void
150 ufs_set_de_type(struct super_block *sb, struct 156 ufs_set_de_type(struct super_block *sb, struct ufs_dir_entry *de, int mode)
151 { 157 {
152 if ((UFS_SB(sb)->s_flags & UFS_DE_MASK 158 if ((UFS_SB(sb)->s_flags & UFS_DE_MASK) != UFS_DE_44BSD)
153 return; 159 return;
154 160
155 /* 161 /*
156 * TODO turn this into a table lookup 162 * TODO turn this into a table lookup
157 */ 163 */
158 switch (mode & S_IFMT) { 164 switch (mode & S_IFMT) {
159 case S_IFSOCK: 165 case S_IFSOCK:
160 de->d_u.d_44.d_type = DT_SOCK; 166 de->d_u.d_44.d_type = DT_SOCK;
161 break; 167 break;
162 case S_IFLNK: 168 case S_IFLNK:
163 de->d_u.d_44.d_type = DT_LNK; 169 de->d_u.d_44.d_type = DT_LNK;
164 break; 170 break;
165 case S_IFREG: 171 case S_IFREG:
166 de->d_u.d_44.d_type = DT_REG; 172 de->d_u.d_44.d_type = DT_REG;
167 break; 173 break;
168 case S_IFBLK: 174 case S_IFBLK:
169 de->d_u.d_44.d_type = DT_BLK; 175 de->d_u.d_44.d_type = DT_BLK;
170 break; 176 break;
171 case S_IFDIR: 177 case S_IFDIR:
172 de->d_u.d_44.d_type = DT_DIR; 178 de->d_u.d_44.d_type = DT_DIR;
173 break; 179 break;
174 case S_IFCHR: 180 case S_IFCHR:
175 de->d_u.d_44.d_type = DT_CHR; 181 de->d_u.d_44.d_type = DT_CHR;
176 break; 182 break;
177 case S_IFIFO: 183 case S_IFIFO:
178 de->d_u.d_44.d_type = DT_FIFO; 184 de->d_u.d_44.d_type = DT_FIFO;
179 break; 185 break;
180 default: 186 default:
181 de->d_u.d_44.d_type = DT_UNKNO 187 de->d_u.d_44.d_type = DT_UNKNOWN;
182 } 188 }
183 } 189 }
184 190
185 static inline u32 191 static inline u32
186 ufs_get_inode_uid(struct super_block *sb, stru 192 ufs_get_inode_uid(struct super_block *sb, struct ufs_inode *inode)
187 { 193 {
188 switch (UFS_SB(sb)->s_flags & UFS_UID_ 194 switch (UFS_SB(sb)->s_flags & UFS_UID_MASK) {
189 case UFS_UID_44BSD: 195 case UFS_UID_44BSD:
190 return fs32_to_cpu(sb, inode-> 196 return fs32_to_cpu(sb, inode->ui_u3.ui_44.ui_uid);
191 case UFS_UID_EFT: 197 case UFS_UID_EFT:
192 if (inode->ui_u1.oldids.ui_sui 198 if (inode->ui_u1.oldids.ui_suid == 0xFFFF)
193 return fs32_to_cpu(sb, 199 return fs32_to_cpu(sb, inode->ui_u3.ui_sun.ui_uid);
194 fallthrough; 200 fallthrough;
195 default: 201 default:
196 return fs16_to_cpu(sb, inode-> 202 return fs16_to_cpu(sb, inode->ui_u1.oldids.ui_suid);
197 } 203 }
198 } 204 }
199 205
200 static inline void 206 static inline void
201 ufs_set_inode_uid(struct super_block *sb, stru 207 ufs_set_inode_uid(struct super_block *sb, struct ufs_inode *inode, u32 value)
202 { 208 {
203 switch (UFS_SB(sb)->s_flags & UFS_UID_ 209 switch (UFS_SB(sb)->s_flags & UFS_UID_MASK) {
204 case UFS_UID_44BSD: 210 case UFS_UID_44BSD:
205 inode->ui_u3.ui_44.ui_uid = cp 211 inode->ui_u3.ui_44.ui_uid = cpu_to_fs32(sb, value);
206 inode->ui_u1.oldids.ui_suid = 212 inode->ui_u1.oldids.ui_suid = cpu_to_fs16(sb, value);
207 break; 213 break;
208 case UFS_UID_EFT: 214 case UFS_UID_EFT:
209 inode->ui_u3.ui_sun.ui_uid = c 215 inode->ui_u3.ui_sun.ui_uid = cpu_to_fs32(sb, value);
210 if (value > 0xFFFF) 216 if (value > 0xFFFF)
211 value = 0xFFFF; 217 value = 0xFFFF;
212 fallthrough; 218 fallthrough;
213 default: 219 default:
214 inode->ui_u1.oldids.ui_suid = 220 inode->ui_u1.oldids.ui_suid = cpu_to_fs16(sb, value);
215 break; 221 break;
216 } 222 }
217 } 223 }
218 224
219 static inline u32 225 static inline u32
220 ufs_get_inode_gid(struct super_block *sb, stru 226 ufs_get_inode_gid(struct super_block *sb, struct ufs_inode *inode)
221 { 227 {
222 switch (UFS_SB(sb)->s_flags & UFS_UID_ 228 switch (UFS_SB(sb)->s_flags & UFS_UID_MASK) {
223 case UFS_UID_44BSD: 229 case UFS_UID_44BSD:
224 return fs32_to_cpu(sb, inode-> 230 return fs32_to_cpu(sb, inode->ui_u3.ui_44.ui_gid);
225 case UFS_UID_EFT: 231 case UFS_UID_EFT:
226 if (inode->ui_u1.oldids.ui_sgi 232 if (inode->ui_u1.oldids.ui_sgid == 0xFFFF)
227 return fs32_to_cpu(sb, 233 return fs32_to_cpu(sb, inode->ui_u3.ui_sun.ui_gid);
228 fallthrough; 234 fallthrough;
229 default: 235 default:
230 return fs16_to_cpu(sb, inode-> 236 return fs16_to_cpu(sb, inode->ui_u1.oldids.ui_sgid);
231 } 237 }
232 } 238 }
233 239
234 static inline void 240 static inline void
235 ufs_set_inode_gid(struct super_block *sb, stru 241 ufs_set_inode_gid(struct super_block *sb, struct ufs_inode *inode, u32 value)
236 { 242 {
237 switch (UFS_SB(sb)->s_flags & UFS_UID_ 243 switch (UFS_SB(sb)->s_flags & UFS_UID_MASK) {
238 case UFS_UID_44BSD: 244 case UFS_UID_44BSD:
239 inode->ui_u3.ui_44.ui_gid = cp 245 inode->ui_u3.ui_44.ui_gid = cpu_to_fs32(sb, value);
240 inode->ui_u1.oldids.ui_sgid = 246 inode->ui_u1.oldids.ui_sgid = cpu_to_fs16(sb, value);
241 break; 247 break;
242 case UFS_UID_EFT: 248 case UFS_UID_EFT:
243 inode->ui_u3.ui_sun.ui_gid = c 249 inode->ui_u3.ui_sun.ui_gid = cpu_to_fs32(sb, value);
244 if (value > 0xFFFF) 250 if (value > 0xFFFF)
245 value = 0xFFFF; 251 value = 0xFFFF;
246 fallthrough; 252 fallthrough;
247 default: 253 default:
248 inode->ui_u1.oldids.ui_sgid = 254 inode->ui_u1.oldids.ui_sgid = cpu_to_fs16(sb, value);
249 break; 255 break;
250 } 256 }
251 } 257 }
252 258
253 dev_t ufs_get_inode_dev(struct super_block *, !! 259 extern dev_t ufs_get_inode_dev(struct super_block *, struct ufs_inode_info *);
254 void ufs_set_inode_dev(struct super_block *, s !! 260 extern void ufs_set_inode_dev(struct super_block *, struct ufs_inode_info *, dev_t);
255 int ufs_prepare_chunk(struct folio *folio, lof !! 261 extern int ufs_prepare_chunk(struct page *page, loff_t pos, unsigned len);
256 262
257 /* 263 /*
258 * These functions manipulate ufs buffers 264 * These functions manipulate ufs buffers
259 */ 265 */
260 #define ubh_bread(sb,fragment,size) _ubh_bread 266 #define ubh_bread(sb,fragment,size) _ubh_bread_(uspi,sb,fragment,size)
261 extern struct ufs_buffer_head * _ubh_bread_(st 267 extern struct ufs_buffer_head * _ubh_bread_(struct ufs_sb_private_info *, struct super_block *, u64 , u64);
262 extern struct ufs_buffer_head * ubh_bread_uspi 268 extern struct ufs_buffer_head * ubh_bread_uspi(struct ufs_sb_private_info *, struct super_block *, u64, u64);
263 extern void ubh_brelse (struct ufs_buffer_head 269 extern void ubh_brelse (struct ufs_buffer_head *);
264 extern void ubh_brelse_uspi (struct ufs_sb_pri 270 extern void ubh_brelse_uspi (struct ufs_sb_private_info *);
265 extern void ubh_mark_buffer_dirty (struct ufs_ 271 extern void ubh_mark_buffer_dirty (struct ufs_buffer_head *);
266 extern void ubh_mark_buffer_uptodate (struct u 272 extern void ubh_mark_buffer_uptodate (struct ufs_buffer_head *, int);
267 extern void ubh_sync_block(struct ufs_buffer_h 273 extern void ubh_sync_block(struct ufs_buffer_head *);
268 extern void ubh_bforget (struct ufs_buffer_hea 274 extern void ubh_bforget (struct ufs_buffer_head *);
269 extern int ubh_buffer_dirty (struct ufs_buffe 275 extern int ubh_buffer_dirty (struct ufs_buffer_head *);
270 #define ubh_ubhcpymem(mem,ubh,size) _ubh_ubhcp 276 #define ubh_ubhcpymem(mem,ubh,size) _ubh_ubhcpymem_(uspi,mem,ubh,size)
271 extern void _ubh_ubhcpymem_(struct ufs_sb_priv 277 extern void _ubh_ubhcpymem_(struct ufs_sb_private_info *, unsigned char *, struct ufs_buffer_head *, unsigned);
272 #define ubh_memcpyubh(ubh,mem,size) _ubh_memcp 278 #define ubh_memcpyubh(ubh,mem,size) _ubh_memcpyubh_(uspi,ubh,mem,size)
273 extern void _ubh_memcpyubh_(struct ufs_sb_priv 279 extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head *, unsigned char *, unsigned);
274 280
275 /* This functions works with cache pages*/ 281 /* This functions works with cache pages*/
276 struct folio *ufs_get_locked_folio(struct addr !! 282 extern struct page *ufs_get_locked_page(struct address_space *mapping,
277 static inline void ufs_put_locked_folio(struct !! 283 pgoff_t index);
>> 284 static inline void ufs_put_locked_page(struct page *page)
278 { 285 {
279 folio_unlock(folio); !! 286 unlock_page(page);
280 folio_put(folio); !! 287 put_page(page);
281 } 288 }
>> 289
282 290
283 /* 291 /*
284 * macros and inline function to get important 292 * macros and inline function to get important structures from ufs_sb_private_info
285 */ 293 */
286 294
287 static inline void *get_usb_offset(struct ufs_ 295 static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
288 unsigned in 296 unsigned int offset)
289 { 297 {
290 unsigned int index; 298 unsigned int index;
291 299
292 index = offset >> uspi->s_fshift; 300 index = offset >> uspi->s_fshift;
293 offset &= ~uspi->s_fmask; 301 offset &= ~uspi->s_fmask;
294 return uspi->s_ubh.bh[index]->b_data + 302 return uspi->s_ubh.bh[index]->b_data + offset;
295 } 303 }
296 304
297 #define ubh_get_usb_first(uspi) \ 305 #define ubh_get_usb_first(uspi) \
298 ((struct ufs_super_block_first *)get_u 306 ((struct ufs_super_block_first *)get_usb_offset((uspi), 0))
299 307
300 #define ubh_get_usb_second(uspi) \ 308 #define ubh_get_usb_second(uspi) \
301 ((struct ufs_super_block_second *)get_ 309 ((struct ufs_super_block_second *)get_usb_offset((uspi), UFS_SECTOR_SIZE))
302 310
303 #define ubh_get_usb_third(uspi) \ 311 #define ubh_get_usb_third(uspi) \
304 ((struct ufs_super_block_third *)get_u 312 ((struct ufs_super_block_third *)get_usb_offset((uspi), 2*UFS_SECTOR_SIZE))
305 313
306 314
307 #define ubh_get_ucg(ubh) \ 315 #define ubh_get_ucg(ubh) \
308 ((struct ufs_cylinder_group *)((ubh)-> 316 ((struct ufs_cylinder_group *)((ubh)->bh[0]->b_data))
309 317
310 318
311 /* 319 /*
312 * Extract byte from ufs_buffer_head 320 * Extract byte from ufs_buffer_head
313 * Extract the bits for a block from a map ins 321 * Extract the bits for a block from a map inside ufs_buffer_head
314 */ 322 */
315 #define ubh_get_addr8(ubh,begin) \ 323 #define ubh_get_addr8(ubh,begin) \
316 ((u8*)(ubh)->bh[(begin) >> uspi->s_fsh 324 ((u8*)(ubh)->bh[(begin) >> uspi->s_fshift]->b_data + \
317 ((begin) & ~uspi->s_fmask)) 325 ((begin) & ~uspi->s_fmask))
318 326
319 #define ubh_get_addr16(ubh,begin) \ 327 #define ubh_get_addr16(ubh,begin) \
320 (((__fs16*)((ubh)->bh[(begin) >> (uspi 328 (((__fs16*)((ubh)->bh[(begin) >> (uspi->s_fshift-1)]->b_data)) + \
321 ((begin) & ((uspi->fsize>>1) - 1))) 329 ((begin) & ((uspi->fsize>>1) - 1)))
322 330
323 #define ubh_get_addr32(ubh,begin) \ 331 #define ubh_get_addr32(ubh,begin) \
324 (((__fs32*)((ubh)->bh[(begin) >> (uspi 332 (((__fs32*)((ubh)->bh[(begin) >> (uspi->s_fshift-2)]->b_data)) + \
325 ((begin) & ((uspi->s_fsize>>2) - 1))) 333 ((begin) & ((uspi->s_fsize>>2) - 1)))
326 334
327 #define ubh_get_addr64(ubh,begin) \ 335 #define ubh_get_addr64(ubh,begin) \
328 (((__fs64*)((ubh)->bh[(begin) >> (uspi 336 (((__fs64*)((ubh)->bh[(begin) >> (uspi->s_fshift-3)]->b_data)) + \
329 ((begin) & ((uspi->s_fsize>>3) - 1))) 337 ((begin) & ((uspi->s_fsize>>3) - 1)))
330 338
331 #define ubh_get_addr ubh_get_addr8 339 #define ubh_get_addr ubh_get_addr8
332 340
333 static inline void *ubh_get_data_ptr(struct uf 341 static inline void *ubh_get_data_ptr(struct ufs_sb_private_info *uspi,
334 struct uf 342 struct ufs_buffer_head *ubh,
335 u64 blk) 343 u64 blk)
336 { 344 {
337 if (uspi->fs_magic == UFS2_MAGIC) 345 if (uspi->fs_magic == UFS2_MAGIC)
338 return ubh_get_addr64(ubh, blk 346 return ubh_get_addr64(ubh, blk);
339 else 347 else
340 return ubh_get_addr32(ubh, blk 348 return ubh_get_addr32(ubh, blk);
341 } 349 }
342 350
343 #define ubh_blkmap(ubh,begin,bit) \ 351 #define ubh_blkmap(ubh,begin,bit) \
344 ((*ubh_get_addr(ubh, (begin) + ((bit) 352 ((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb)))
345 353
346 static inline u64 354 static inline u64
347 ufs_freefrags(struct ufs_sb_private_info *uspi 355 ufs_freefrags(struct ufs_sb_private_info *uspi)
348 { 356 {
349 return ufs_blkstofrags(uspi->cs_total. 357 return ufs_blkstofrags(uspi->cs_total.cs_nbfree) +
350 uspi->cs_total.cs_nffree; 358 uspi->cs_total.cs_nffree;
351 } 359 }
352 360
353 /* 361 /*
354 * Macros to access cylinder group array struc 362 * Macros to access cylinder group array structures
355 */ 363 */
356 #define ubh_cg_blktot(ucpi,cylno) \ 364 #define ubh_cg_blktot(ucpi,cylno) \
357 (*((__fs32*)ubh_get_addr(UCPI_UBH(ucpi 365 (*((__fs32*)ubh_get_addr(UCPI_UBH(ucpi), (ucpi)->c_btotoff + ((cylno) << 2))))
358 366
359 #define ubh_cg_blks(ucpi,cylno,rpos) \ 367 #define ubh_cg_blks(ucpi,cylno,rpos) \
360 (*((__fs16*)ubh_get_addr(UCPI_UBH(ucpi 368 (*((__fs16*)ubh_get_addr(UCPI_UBH(ucpi), \
361 (ucpi)->c_boff + (((cylno) * uspi->s_n 369 (ucpi)->c_boff + (((cylno) * uspi->s_nrpos + (rpos)) << 1 ))))
362 370
363 /* 371 /*
364 * Bitmap operations 372 * Bitmap operations
365 * These functions work like classical bitmap 373 * These functions work like classical bitmap operations.
366 * The difference is that we don't have the wh 374 * The difference is that we don't have the whole bitmap
367 * in one contiguous chunk of memory, but in s 375 * in one contiguous chunk of memory, but in several buffers.
368 * The parameters of each function are super_b 376 * The parameters of each function are super_block, ufs_buffer_head and
369 * position of the beginning of the bitmap. 377 * position of the beginning of the bitmap.
370 */ 378 */
371 #define ubh_setbit(ubh,begin,bit) \ 379 #define ubh_setbit(ubh,begin,bit) \
372 (*ubh_get_addr(ubh, (begin) + ((bit) > 380 (*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) |= (1 << ((bit) & 7)))
373 381
374 #define ubh_clrbit(ubh,begin,bit) \ 382 #define ubh_clrbit(ubh,begin,bit) \
375 (*ubh_get_addr (ubh, (begin) + ((bit) 383 (*ubh_get_addr (ubh, (begin) + ((bit) >> 3)) &= ~(1 << ((bit) & 7)))
376 384
377 #define ubh_isset(ubh,begin,bit) \ 385 #define ubh_isset(ubh,begin,bit) \
378 (*ubh_get_addr (ubh, (begin) + ((bit) 386 (*ubh_get_addr (ubh, (begin) + ((bit) >> 3)) & (1 << ((bit) & 7)))
379 387
380 #define ubh_isclr(ubh,begin,bit) (!ubh_isset(u 388 #define ubh_isclr(ubh,begin,bit) (!ubh_isset(ubh,begin,bit))
381 389
382 #define ubh_find_first_zero_bit(ubh,begin,size 390 #define ubh_find_first_zero_bit(ubh,begin,size) _ubh_find_next_zero_bit_(uspi,ubh,begin,size,0)
383 391
384 #define ubh_find_next_zero_bit(ubh,begin,size, 392 #define ubh_find_next_zero_bit(ubh,begin,size,offset) _ubh_find_next_zero_bit_(uspi,ubh,begin,size,offset)
385 static inline unsigned _ubh_find_next_zero_bit 393 static inline unsigned _ubh_find_next_zero_bit_(
386 struct ufs_sb_private_info * uspi, str 394 struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh,
387 unsigned begin, unsigned size, unsigne 395 unsigned begin, unsigned size, unsigned offset)
388 { 396 {
389 unsigned base, count, pos; 397 unsigned base, count, pos;
390 398
391 size -= offset; 399 size -= offset;
392 begin <<= 3; 400 begin <<= 3;
393 offset += begin; 401 offset += begin;
394 base = offset >> uspi->s_bpfshift; 402 base = offset >> uspi->s_bpfshift;
395 offset &= uspi->s_bpfmask; 403 offset &= uspi->s_bpfmask;
396 for (;;) { 404 for (;;) {
397 count = min_t(unsigned int, si 405 count = min_t(unsigned int, size + offset, uspi->s_bpf);
398 size -= count - offset; 406 size -= count - offset;
399 pos = find_next_zero_bit_le(ub 407 pos = find_next_zero_bit_le(ubh->bh[base]->b_data, count, offset);
400 if (pos < count || !size) 408 if (pos < count || !size)
401 break; 409 break;
402 base++; 410 base++;
403 offset = 0; 411 offset = 0;
404 } 412 }
405 return (base << uspi->s_bpfshift) + po 413 return (base << uspi->s_bpfshift) + pos - begin;
406 } 414 }
407 415
408 static inline unsigned find_last_zero_bit (uns 416 static inline unsigned find_last_zero_bit (unsigned char * bitmap,
409 unsigned size, unsigned offset) 417 unsigned size, unsigned offset)
410 { 418 {
411 unsigned bit, i; 419 unsigned bit, i;
412 unsigned char * mapp; 420 unsigned char * mapp;
413 unsigned char map; 421 unsigned char map;
414 422
415 mapp = bitmap + (size >> 3); 423 mapp = bitmap + (size >> 3);
416 map = *mapp--; 424 map = *mapp--;
417 bit = 1 << (size & 7); 425 bit = 1 << (size & 7);
418 for (i = size; i > offset; i--) { 426 for (i = size; i > offset; i--) {
419 if ((map & bit) == 0) 427 if ((map & bit) == 0)
420 break; 428 break;
421 if ((i & 7) != 0) { 429 if ((i & 7) != 0) {
422 bit >>= 1; 430 bit >>= 1;
423 } else { 431 } else {
424 map = *mapp--; 432 map = *mapp--;
425 bit = 1 << 7; 433 bit = 1 << 7;
426 } 434 }
427 } 435 }
428 return i; 436 return i;
429 } 437 }
430 438
431 #define ubh_find_last_zero_bit(ubh,begin,size, 439 #define ubh_find_last_zero_bit(ubh,begin,size,offset) _ubh_find_last_zero_bit_(uspi,ubh,begin,size,offset)
432 static inline unsigned _ubh_find_last_zero_bit 440 static inline unsigned _ubh_find_last_zero_bit_(
433 struct ufs_sb_private_info * uspi, str 441 struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh,
434 unsigned begin, unsigned start, unsign 442 unsigned begin, unsigned start, unsigned end)
435 { 443 {
436 unsigned base, count, pos, size; 444 unsigned base, count, pos, size;
437 445
438 size = start - end; 446 size = start - end;
439 begin <<= 3; 447 begin <<= 3;
440 start += begin; 448 start += begin;
441 base = start >> uspi->s_bpfshift; 449 base = start >> uspi->s_bpfshift;
442 start &= uspi->s_bpfmask; 450 start &= uspi->s_bpfmask;
443 for (;;) { 451 for (;;) {
444 count = min_t(unsigned int, 452 count = min_t(unsigned int,
445 size + (uspi->s_bp 453 size + (uspi->s_bpf - start), uspi->s_bpf)
446 - (uspi->s_bpf - start 454 - (uspi->s_bpf - start);
447 size -= count; 455 size -= count;
448 pos = find_last_zero_bit (ubh- 456 pos = find_last_zero_bit (ubh->bh[base]->b_data,
449 start, start - count); 457 start, start - count);
450 if (pos > start - count || !si 458 if (pos > start - count || !size)
451 break; 459 break;
452 base--; 460 base--;
453 start = uspi->s_bpf; 461 start = uspi->s_bpf;
454 } 462 }
455 return (base << uspi->s_bpfshift) + po 463 return (base << uspi->s_bpfshift) + pos - begin;
456 } 464 }
457 465
458 #define ubh_isblockclear(ubh,begin,block) (!_u 466 #define ubh_isblockclear(ubh,begin,block) (!_ubh_isblockset_(uspi,ubh,begin,block))
459 467
460 #define ubh_isblockset(ubh,begin,block) _ubh_i 468 #define ubh_isblockset(ubh,begin,block) _ubh_isblockset_(uspi,ubh,begin,block)
461 static inline int _ubh_isblockset_(struct ufs_ 469 static inline int _ubh_isblockset_(struct ufs_sb_private_info * uspi,
462 struct ufs_buffer_head * ubh, unsigned 470 struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
463 { 471 {
464 u8 mask; 472 u8 mask;
465 switch (uspi->s_fpb) { 473 switch (uspi->s_fpb) {
466 case 8: 474 case 8:
467 return (*ubh_get_addr (ubh, be 475 return (*ubh_get_addr (ubh, begin + block) == 0xff);
468 case 4: 476 case 4:
469 mask = 0x0f << ((block & 0x01) 477 mask = 0x0f << ((block & 0x01) << 2);
470 return (*ubh_get_addr (ubh, be 478 return (*ubh_get_addr (ubh, begin + (block >> 1)) & mask) == mask;
471 case 2: 479 case 2:
472 mask = 0x03 << ((block & 0x03) 480 mask = 0x03 << ((block & 0x03) << 1);
473 return (*ubh_get_addr (ubh, be 481 return (*ubh_get_addr (ubh, begin + (block >> 2)) & mask) == mask;
474 case 1: 482 case 1:
475 mask = 0x01 << (block & 0x07); 483 mask = 0x01 << (block & 0x07);
476 return (*ubh_get_addr (ubh, be 484 return (*ubh_get_addr (ubh, begin + (block >> 3)) & mask) == mask;
477 } 485 }
478 return 0; 486 return 0;
479 } 487 }
480 488
481 #define ubh_clrblock(ubh,begin,block) _ubh_clr 489 #define ubh_clrblock(ubh,begin,block) _ubh_clrblock_(uspi,ubh,begin,block)
482 static inline void _ubh_clrblock_(struct ufs_s 490 static inline void _ubh_clrblock_(struct ufs_sb_private_info * uspi,
483 struct ufs_buffer_head * ubh, unsigned 491 struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
484 { 492 {
485 switch (uspi->s_fpb) { 493 switch (uspi->s_fpb) {
486 case 8: 494 case 8:
487 *ubh_get_addr (ubh, begin + bl 495 *ubh_get_addr (ubh, begin + block) = 0x00;
488 return; 496 return;
489 case 4: 497 case 4:
490 *ubh_get_addr (ubh, begin + (b 498 *ubh_get_addr (ubh, begin + (block >> 1)) &= ~(0x0f << ((block & 0x01) << 2));
491 return; 499 return;
492 case 2: 500 case 2:
493 *ubh_get_addr (ubh, begin + (b 501 *ubh_get_addr (ubh, begin + (block >> 2)) &= ~(0x03 << ((block & 0x03) << 1));
494 return; 502 return;
495 case 1: 503 case 1:
496 *ubh_get_addr (ubh, begin + (b 504 *ubh_get_addr (ubh, begin + (block >> 3)) &= ~(0x01 << ((block & 0x07)));
497 return; 505 return;
498 } 506 }
499 } 507 }
500 508
501 #define ubh_setblock(ubh,begin,block) _ubh_set 509 #define ubh_setblock(ubh,begin,block) _ubh_setblock_(uspi,ubh,begin,block)
502 static inline void _ubh_setblock_(struct ufs_s 510 static inline void _ubh_setblock_(struct ufs_sb_private_info * uspi,
503 struct ufs_buffer_head * ubh, unsigned 511 struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
504 { 512 {
505 switch (uspi->s_fpb) { 513 switch (uspi->s_fpb) {
506 case 8: 514 case 8:
507 *ubh_get_addr(ubh, begin + blo 515 *ubh_get_addr(ubh, begin + block) = 0xff;
508 return; 516 return;
509 case 4: 517 case 4:
510 *ubh_get_addr(ubh, begin + (bl 518 *ubh_get_addr(ubh, begin + (block >> 1)) |= (0x0f << ((block & 0x01) << 2));
511 return; 519 return;
512 case 2: 520 case 2:
513 *ubh_get_addr(ubh, begin + (bl 521 *ubh_get_addr(ubh, begin + (block >> 2)) |= (0x03 << ((block & 0x03) << 1));
514 return; 522 return;
515 case 1: 523 case 1:
516 *ubh_get_addr(ubh, begin + (bl 524 *ubh_get_addr(ubh, begin + (block >> 3)) |= (0x01 << ((block & 0x07)));
517 return; 525 return;
518 } 526 }
519 } 527 }
520 528
521 static inline void ufs_fragacct (struct super_ 529 static inline void ufs_fragacct (struct super_block * sb, unsigned blockmap,
522 __fs32 * fraglist, int cnt) 530 __fs32 * fraglist, int cnt)
523 { 531 {
524 struct ufs_sb_private_info * uspi; 532 struct ufs_sb_private_info * uspi;
525 unsigned fragsize, pos; 533 unsigned fragsize, pos;
526 534
527 uspi = UFS_SB(sb)->s_uspi; 535 uspi = UFS_SB(sb)->s_uspi;
528 536
529 fragsize = 0; 537 fragsize = 0;
530 for (pos = 0; pos < uspi->s_fpb; pos++ 538 for (pos = 0; pos < uspi->s_fpb; pos++) {
531 if (blockmap & (1 << pos)) { 539 if (blockmap & (1 << pos)) {
532 fragsize++; 540 fragsize++;
533 } 541 }
534 else if (fragsize > 0) { 542 else if (fragsize > 0) {
535 fs32_add(sb, &fraglist 543 fs32_add(sb, &fraglist[fragsize], cnt);
536 fragsize = 0; 544 fragsize = 0;
537 } 545 }
538 } 546 }
539 if (fragsize > 0 && fragsize < uspi->s 547 if (fragsize > 0 && fragsize < uspi->s_fpb)
540 fs32_add(sb, &fraglist[fragsiz 548 fs32_add(sb, &fraglist[fragsize], cnt);
541 } 549 }
542 550
543 static inline void *ufs_get_direct_data_ptr(st 551 static inline void *ufs_get_direct_data_ptr(struct ufs_sb_private_info *uspi,
544 st 552 struct ufs_inode_info *ufsi,
545 un 553 unsigned blk)
546 { 554 {
547 BUG_ON(blk > UFS_TIND_BLOCK); 555 BUG_ON(blk > UFS_TIND_BLOCK);
548 return uspi->fs_magic == UFS2_MAGIC ? 556 return uspi->fs_magic == UFS2_MAGIC ?
549 (void *)&ufsi->i_u1.u2_i_data[ 557 (void *)&ufsi->i_u1.u2_i_data[blk] :
550 (void *)&ufsi->i_u1.i_data[blk 558 (void *)&ufsi->i_u1.i_data[blk];
551 } 559 }
552 560
553 static inline u64 ufs_data_ptr_to_cpu(struct s 561 static inline u64 ufs_data_ptr_to_cpu(struct super_block *sb, void *p)
554 { 562 {
555 return UFS_SB(sb)->s_uspi->fs_magic == 563 return UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC ?
556 fs64_to_cpu(sb, *(__fs64 *)p) 564 fs64_to_cpu(sb, *(__fs64 *)p) :
557 fs32_to_cpu(sb, *(__fs32 *)p); 565 fs32_to_cpu(sb, *(__fs32 *)p);
558 } 566 }
559 567
560 static inline void ufs_cpu_to_data_ptr(struct 568 static inline void ufs_cpu_to_data_ptr(struct super_block *sb, void *p, u64 val)
561 { 569 {
562 if (UFS_SB(sb)->s_uspi->fs_magic == UF 570 if (UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC)
563 *(__fs64 *)p = cpu_to_fs64(sb, 571 *(__fs64 *)p = cpu_to_fs64(sb, val);
564 else 572 else
565 *(__fs32 *)p = cpu_to_fs32(sb, 573 *(__fs32 *)p = cpu_to_fs32(sb, val);
566 } 574 }
567 575
568 static inline void ufs_data_ptr_clear(struct u 576 static inline void ufs_data_ptr_clear(struct ufs_sb_private_info *uspi,
569 void *p) 577 void *p)
570 { 578 {
571 if (uspi->fs_magic == UFS2_MAGIC) 579 if (uspi->fs_magic == UFS2_MAGIC)
572 *(__fs64 *)p = 0; 580 *(__fs64 *)p = 0;
573 else 581 else
574 *(__fs32 *)p = 0; 582 *(__fs32 *)p = 0;
575 } 583 }
576 584
577 static inline int ufs_is_data_ptr_zero(struct 585 static inline int ufs_is_data_ptr_zero(struct ufs_sb_private_info *uspi,
578 void *p 586 void *p)
579 { 587 {
580 if (uspi->fs_magic == UFS2_MAGIC) 588 if (uspi->fs_magic == UFS2_MAGIC)
581 return *(__fs64 *)p == 0; 589 return *(__fs64 *)p == 0;
582 else 590 else
583 return *(__fs32 *)p == 0; 591 return *(__fs32 *)p == 0;
584 } 592 }
585 593
586 static inline __fs32 ufs_get_seconds(struct su 594 static inline __fs32 ufs_get_seconds(struct super_block *sbp)
587 { 595 {
588 time64_t now = ktime_get_real_seconds( 596 time64_t now = ktime_get_real_seconds();
589 597
590 /* Signed 32-bit interpretation wraps 598 /* Signed 32-bit interpretation wraps around in 2038, which
591 * happens in ufs1 inode stamps but no 599 * happens in ufs1 inode stamps but not ufs2 using 64-bits
592 * stamps. For superblock and blockgro 600 * stamps. For superblock and blockgroup, let's assume
593 * unsigned 32-bit stamps, which are g 601 * unsigned 32-bit stamps, which are good until y2106.
594 * Wrap around rather than clamp here 602 * Wrap around rather than clamp here to make the dirty
595 * file system detection work in the s 603 * file system detection work in the superblock stamp.
596 */ 604 */
597 return cpu_to_fs32(sbp, lower_32_bits( 605 return cpu_to_fs32(sbp, lower_32_bits(now));
598 } 606 }
599 607
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