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