1 // SPDX-License-Identifier: GPL-2.0 1 // SPDX-License-Identifier: GPL-2.0
2 /* 2 /*
3 * linux/fs/ufs/inode.c 3 * linux/fs/ufs/inode.c
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 * from 9 * from
10 * 10 *
11 * linux/fs/ext2/inode.c 11 * linux/fs/ext2/inode.c
12 * 12 *
13 * Copyright (C) 1992, 1993, 1994, 1995 13 * Copyright (C) 1992, 1993, 1994, 1995
14 * Remy Card (card@masi.ibp.fr) 14 * Remy Card (card@masi.ibp.fr)
15 * Laboratoire MASI - Institut Blaise Pascal 15 * Laboratoire MASI - Institut Blaise Pascal
16 * Universite Pierre et Marie Curie (Paris VI) 16 * Universite Pierre et Marie Curie (Paris VI)
17 * 17 *
18 * from 18 * from
19 * 19 *
20 * linux/fs/minix/inode.c 20 * linux/fs/minix/inode.c
21 * 21 *
22 * Copyright (C) 1991, 1992 Linus Torvalds 22 * Copyright (C) 1991, 1992 Linus Torvalds
23 * 23 *
24 * Goal-directed block allocation by Stephen 24 * Goal-directed block allocation by Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
25 * Big-endian to little-endian byte-swapping/ 25 * Big-endian to little-endian byte-swapping/bitmaps by
26 * David S. Miller (davem@caip.rutgers. 26 * David S. Miller (davem@caip.rutgers.edu), 1995
27 */ 27 */
28 28
29 #include <linux/uaccess.h> 29 #include <linux/uaccess.h>
30 30
31 #include <linux/errno.h> 31 #include <linux/errno.h>
32 #include <linux/fs.h> 32 #include <linux/fs.h>
33 #include <linux/time.h> 33 #include <linux/time.h>
34 #include <linux/stat.h> 34 #include <linux/stat.h>
35 #include <linux/string.h> 35 #include <linux/string.h>
36 #include <linux/mm.h> 36 #include <linux/mm.h>
37 #include <linux/buffer_head.h> 37 #include <linux/buffer_head.h>
38 #include <linux/mpage.h> <<
39 #include <linux/writeback.h> 38 #include <linux/writeback.h>
40 #include <linux/iversion.h> 39 #include <linux/iversion.h>
41 40
42 #include "ufs_fs.h" 41 #include "ufs_fs.h"
43 #include "ufs.h" 42 #include "ufs.h"
44 #include "swab.h" 43 #include "swab.h"
45 #include "util.h" 44 #include "util.h"
46 45
47 static int ufs_block_to_path(struct inode *ino 46 static int ufs_block_to_path(struct inode *inode, sector_t i_block, unsigned offsets[4])
48 { 47 {
49 struct ufs_sb_private_info *uspi = UFS 48 struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;
50 int ptrs = uspi->s_apb; 49 int ptrs = uspi->s_apb;
51 int ptrs_bits = uspi->s_apbshift; 50 int ptrs_bits = uspi->s_apbshift;
52 const long direct_blocks = UFS_NDADDR, 51 const long direct_blocks = UFS_NDADDR,
53 indirect_blocks = ptrs, 52 indirect_blocks = ptrs,
54 double_blocks = (1 << (ptrs_bi 53 double_blocks = (1 << (ptrs_bits * 2));
55 int n = 0; 54 int n = 0;
56 55
57 56
58 UFSD("ptrs=uspi->s_apb = %d,double_blo 57 UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks);
59 if (i_block < direct_blocks) { 58 if (i_block < direct_blocks) {
60 offsets[n++] = i_block; 59 offsets[n++] = i_block;
61 } else if ((i_block -= direct_blocks) 60 } else if ((i_block -= direct_blocks) < indirect_blocks) {
62 offsets[n++] = UFS_IND_BLOCK; 61 offsets[n++] = UFS_IND_BLOCK;
63 offsets[n++] = i_block; 62 offsets[n++] = i_block;
64 } else if ((i_block -= indirect_blocks 63 } else if ((i_block -= indirect_blocks) < double_blocks) {
65 offsets[n++] = UFS_DIND_BLOCK; 64 offsets[n++] = UFS_DIND_BLOCK;
66 offsets[n++] = i_block >> ptrs 65 offsets[n++] = i_block >> ptrs_bits;
67 offsets[n++] = i_block & (ptrs 66 offsets[n++] = i_block & (ptrs - 1);
68 } else if (((i_block -= double_blocks) 67 } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
69 offsets[n++] = UFS_TIND_BLOCK; 68 offsets[n++] = UFS_TIND_BLOCK;
70 offsets[n++] = i_block >> (ptr 69 offsets[n++] = i_block >> (ptrs_bits * 2);
71 offsets[n++] = (i_block >> ptr 70 offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
72 offsets[n++] = i_block & (ptrs 71 offsets[n++] = i_block & (ptrs - 1);
73 } else { 72 } else {
74 ufs_warning(inode->i_sb, "ufs_ 73 ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big");
75 } 74 }
76 return n; 75 return n;
77 } 76 }
78 77
79 typedef struct { 78 typedef struct {
80 void *p; 79 void *p;
81 union { 80 union {
82 __fs32 key32; 81 __fs32 key32;
83 __fs64 key64; 82 __fs64 key64;
84 }; 83 };
85 struct buffer_head *bh; 84 struct buffer_head *bh;
86 } Indirect; 85 } Indirect;
87 86
88 static inline int grow_chain32(struct ufs_inod 87 static inline int grow_chain32(struct ufs_inode_info *ufsi,
89 struct buffer_h 88 struct buffer_head *bh, __fs32 *v,
90 Indirect *from, 89 Indirect *from, Indirect *to)
91 { 90 {
92 Indirect *p; 91 Indirect *p;
93 unsigned seq; 92 unsigned seq;
94 to->bh = bh; 93 to->bh = bh;
95 do { 94 do {
96 seq = read_seqbegin(&ufsi->met 95 seq = read_seqbegin(&ufsi->meta_lock);
97 to->key32 = *(__fs32 *)(to->p 96 to->key32 = *(__fs32 *)(to->p = v);
98 for (p = from; p <= to && p->k 97 for (p = from; p <= to && p->key32 == *(__fs32 *)p->p; p++)
99 ; 98 ;
100 } while (read_seqretry(&ufsi->meta_loc 99 } while (read_seqretry(&ufsi->meta_lock, seq));
101 return (p > to); 100 return (p > to);
102 } 101 }
103 102
104 static inline int grow_chain64(struct ufs_inod 103 static inline int grow_chain64(struct ufs_inode_info *ufsi,
105 struct buffer_h 104 struct buffer_head *bh, __fs64 *v,
106 Indirect *from, 105 Indirect *from, Indirect *to)
107 { 106 {
108 Indirect *p; 107 Indirect *p;
109 unsigned seq; 108 unsigned seq;
110 to->bh = bh; 109 to->bh = bh;
111 do { 110 do {
112 seq = read_seqbegin(&ufsi->met 111 seq = read_seqbegin(&ufsi->meta_lock);
113 to->key64 = *(__fs64 *)(to->p 112 to->key64 = *(__fs64 *)(to->p = v);
114 for (p = from; p <= to && p->k 113 for (p = from; p <= to && p->key64 == *(__fs64 *)p->p; p++)
115 ; 114 ;
116 } while (read_seqretry(&ufsi->meta_loc 115 } while (read_seqretry(&ufsi->meta_lock, seq));
117 return (p > to); 116 return (p > to);
118 } 117 }
119 118
120 /* 119 /*
121 * Returns the location of the fragment from 120 * Returns the location of the fragment from
122 * the beginning of the filesystem. 121 * the beginning of the filesystem.
123 */ 122 */
124 123
125 static u64 ufs_frag_map(struct inode *inode, u 124 static u64 ufs_frag_map(struct inode *inode, unsigned offsets[4], int depth)
126 { 125 {
127 struct ufs_inode_info *ufsi = UFS_I(in 126 struct ufs_inode_info *ufsi = UFS_I(inode);
128 struct super_block *sb = inode->i_sb; 127 struct super_block *sb = inode->i_sb;
129 struct ufs_sb_private_info *uspi = UFS 128 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
130 u64 mask = (u64) uspi->s_apbmask>>uspi 129 u64 mask = (u64) uspi->s_apbmask>>uspi->s_fpbshift;
131 int shift = uspi->s_apbshift-uspi->s_f 130 int shift = uspi->s_apbshift-uspi->s_fpbshift;
132 Indirect chain[4], *q = chain; 131 Indirect chain[4], *q = chain;
133 unsigned *p; 132 unsigned *p;
134 unsigned flags = UFS_SB(sb)->s_flags; 133 unsigned flags = UFS_SB(sb)->s_flags;
135 u64 res = 0; 134 u64 res = 0;
136 135
137 UFSD(": uspi->s_fpbshift = %d ,uspi->s 136 UFSD(": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n",
138 uspi->s_fpbshift, uspi->s_apbm 137 uspi->s_fpbshift, uspi->s_apbmask,
139 (unsigned long long)mask); 138 (unsigned long long)mask);
140 139
141 if (depth == 0) 140 if (depth == 0)
142 goto no_block; 141 goto no_block;
143 142
144 again: 143 again:
145 p = offsets; 144 p = offsets;
146 145
147 if ((flags & UFS_TYPE_MASK) == UFS_TYP 146 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
148 goto ufs2; 147 goto ufs2;
149 148
150 if (!grow_chain32(ufsi, NULL, &ufsi->i 149 if (!grow_chain32(ufsi, NULL, &ufsi->i_u1.i_data[*p++], chain, q))
151 goto changed; 150 goto changed;
152 if (!q->key32) 151 if (!q->key32)
153 goto no_block; 152 goto no_block;
154 while (--depth) { 153 while (--depth) {
155 __fs32 *ptr; 154 __fs32 *ptr;
156 struct buffer_head *bh; 155 struct buffer_head *bh;
157 unsigned n = *p++; 156 unsigned n = *p++;
158 157
159 bh = sb_bread(sb, uspi->s_sbba 158 bh = sb_bread(sb, uspi->s_sbbase +
160 fs32_to_cpu( 159 fs32_to_cpu(sb, q->key32) + (n>>shift));
161 if (!bh) 160 if (!bh)
162 goto no_block; 161 goto no_block;
163 ptr = (__fs32 *)bh->b_data + ( 162 ptr = (__fs32 *)bh->b_data + (n & mask);
164 if (!grow_chain32(ufsi, bh, pt 163 if (!grow_chain32(ufsi, bh, ptr, chain, ++q))
165 goto changed; 164 goto changed;
166 if (!q->key32) 165 if (!q->key32)
167 goto no_block; 166 goto no_block;
168 } 167 }
169 res = fs32_to_cpu(sb, q->key32); 168 res = fs32_to_cpu(sb, q->key32);
170 goto found; 169 goto found;
171 170
172 ufs2: 171 ufs2:
173 if (!grow_chain64(ufsi, NULL, &ufsi->i 172 if (!grow_chain64(ufsi, NULL, &ufsi->i_u1.u2_i_data[*p++], chain, q))
174 goto changed; 173 goto changed;
175 if (!q->key64) 174 if (!q->key64)
176 goto no_block; 175 goto no_block;
177 176
178 while (--depth) { 177 while (--depth) {
179 __fs64 *ptr; 178 __fs64 *ptr;
180 struct buffer_head *bh; 179 struct buffer_head *bh;
181 unsigned n = *p++; 180 unsigned n = *p++;
182 181
183 bh = sb_bread(sb, uspi->s_sbba 182 bh = sb_bread(sb, uspi->s_sbbase +
184 fs64_to_cpu( 183 fs64_to_cpu(sb, q->key64) + (n>>shift));
185 if (!bh) 184 if (!bh)
186 goto no_block; 185 goto no_block;
187 ptr = (__fs64 *)bh->b_data + ( 186 ptr = (__fs64 *)bh->b_data + (n & mask);
188 if (!grow_chain64(ufsi, bh, pt 187 if (!grow_chain64(ufsi, bh, ptr, chain, ++q))
189 goto changed; 188 goto changed;
190 if (!q->key64) 189 if (!q->key64)
191 goto no_block; 190 goto no_block;
192 } 191 }
193 res = fs64_to_cpu(sb, q->key64); 192 res = fs64_to_cpu(sb, q->key64);
194 found: 193 found:
195 res += uspi->s_sbbase; 194 res += uspi->s_sbbase;
196 no_block: 195 no_block:
197 while (q > chain) { 196 while (q > chain) {
198 brelse(q->bh); 197 brelse(q->bh);
199 q--; 198 q--;
200 } 199 }
201 return res; 200 return res;
202 201
203 changed: 202 changed:
204 while (q > chain) { 203 while (q > chain) {
205 brelse(q->bh); 204 brelse(q->bh);
206 q--; 205 q--;
207 } 206 }
208 goto again; 207 goto again;
209 } 208 }
210 209
211 /* 210 /*
212 * Unpacking tails: we have a file with partia 211 * Unpacking tails: we have a file with partial final block and
213 * we had been asked to extend it. If the fra 212 * we had been asked to extend it. If the fragment being written
214 * is within the same block, we need to extend 213 * is within the same block, we need to extend the tail just to cover
215 * that fragment. Otherwise the tail is exten 214 * that fragment. Otherwise the tail is extended to full block.
216 * 215 *
217 * Note that we might need to create a _new_ t 216 * Note that we might need to create a _new_ tail, but that will
218 * be handled elsewhere; this is strictly for 217 * be handled elsewhere; this is strictly for resizing old
219 * ones. 218 * ones.
220 */ 219 */
221 static bool 220 static bool
222 ufs_extend_tail(struct inode *inode, u64 write 221 ufs_extend_tail(struct inode *inode, u64 writes_to,
223 int *err, struct page *locke 222 int *err, struct page *locked_page)
224 { 223 {
225 struct ufs_inode_info *ufsi = UFS_I(in 224 struct ufs_inode_info *ufsi = UFS_I(inode);
226 struct super_block *sb = inode->i_sb; 225 struct super_block *sb = inode->i_sb;
227 struct ufs_sb_private_info *uspi = UFS 226 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
228 unsigned lastfrag = ufsi->i_lastfrag; 227 unsigned lastfrag = ufsi->i_lastfrag; /* it's a short file, so unsigned is enough */
229 unsigned block = ufs_fragstoblks(lastf 228 unsigned block = ufs_fragstoblks(lastfrag);
230 unsigned new_size; 229 unsigned new_size;
231 void *p; 230 void *p;
232 u64 tmp; 231 u64 tmp;
233 232
234 if (writes_to < (lastfrag | uspi->s_fp 233 if (writes_to < (lastfrag | uspi->s_fpbmask))
235 new_size = (writes_to & uspi-> 234 new_size = (writes_to & uspi->s_fpbmask) + 1;
236 else 235 else
237 new_size = uspi->s_fpb; 236 new_size = uspi->s_fpb;
238 237
239 p = ufs_get_direct_data_ptr(uspi, ufsi 238 p = ufs_get_direct_data_ptr(uspi, ufsi, block);
240 tmp = ufs_new_fragments(inode, p, last 239 tmp = ufs_new_fragments(inode, p, lastfrag, ufs_data_ptr_to_cpu(sb, p),
241 new_size - (la 240 new_size - (lastfrag & uspi->s_fpbmask), err,
242 locked_page); 241 locked_page);
243 return tmp != 0; 242 return tmp != 0;
244 } 243 }
245 244
246 /** 245 /**
247 * ufs_inode_getfrag() - allocate new fragment 246 * ufs_inode_getfrag() - allocate new fragment(s)
248 * @inode: pointer to inode 247 * @inode: pointer to inode
249 * @index: number of block pointer within the 248 * @index: number of block pointer within the inode's array.
250 * @new_fragment: number of new allocated frag 249 * @new_fragment: number of new allocated fragment(s)
251 * @err: we set it if something wrong 250 * @err: we set it if something wrong
252 * @new: we set it if we allocate new block 251 * @new: we set it if we allocate new block
253 * @locked_page: for ufs_new_fragments() 252 * @locked_page: for ufs_new_fragments()
254 */ 253 */
255 static u64 254 static u64
256 ufs_inode_getfrag(struct inode *inode, unsigne 255 ufs_inode_getfrag(struct inode *inode, unsigned index,
257 sector_t new_fragment, int * 256 sector_t new_fragment, int *err,
258 int *new, struct page *locke 257 int *new, struct page *locked_page)
259 { 258 {
260 struct ufs_inode_info *ufsi = UFS_I(in 259 struct ufs_inode_info *ufsi = UFS_I(inode);
261 struct super_block *sb = inode->i_sb; 260 struct super_block *sb = inode->i_sb;
262 struct ufs_sb_private_info *uspi = UFS 261 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
263 u64 tmp, goal, lastfrag; 262 u64 tmp, goal, lastfrag;
264 unsigned nfrags = uspi->s_fpb; 263 unsigned nfrags = uspi->s_fpb;
265 void *p; 264 void *p;
266 265
267 /* TODO : to be done for write support 266 /* TODO : to be done for write support
268 if ( (flags & UFS_TYPE_MASK) == UFS_TY 267 if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
269 goto ufs2; 268 goto ufs2;
270 */ 269 */
271 270
272 p = ufs_get_direct_data_ptr(uspi, ufsi 271 p = ufs_get_direct_data_ptr(uspi, ufsi, index);
273 tmp = ufs_data_ptr_to_cpu(sb, p); 272 tmp = ufs_data_ptr_to_cpu(sb, p);
274 if (tmp) 273 if (tmp)
275 goto out; 274 goto out;
276 275
277 lastfrag = ufsi->i_lastfrag; 276 lastfrag = ufsi->i_lastfrag;
278 277
279 /* will that be a new tail? */ 278 /* will that be a new tail? */
280 if (new_fragment < UFS_NDIR_FRAGMENT & 279 if (new_fragment < UFS_NDIR_FRAGMENT && new_fragment >= lastfrag)
281 nfrags = (new_fragment & uspi- 280 nfrags = (new_fragment & uspi->s_fpbmask) + 1;
282 281
283 goal = 0; 282 goal = 0;
284 if (index) { 283 if (index) {
285 goal = ufs_data_ptr_to_cpu(sb, 284 goal = ufs_data_ptr_to_cpu(sb,
286 ufs_get_direc 285 ufs_get_direct_data_ptr(uspi, ufsi, index - 1));
287 if (goal) 286 if (goal)
288 goal += uspi->s_fpb; 287 goal += uspi->s_fpb;
289 } 288 }
290 tmp = ufs_new_fragments(inode, p, ufs_ 289 tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment),
291 goal, nfrags, 290 goal, nfrags, err, locked_page);
292 291
293 if (!tmp) { 292 if (!tmp) {
294 *err = -ENOSPC; 293 *err = -ENOSPC;
295 return 0; 294 return 0;
296 } 295 }
297 296
298 if (new) 297 if (new)
299 *new = 1; 298 *new = 1;
300 inode_set_ctime_current(inode); 299 inode_set_ctime_current(inode);
301 if (IS_SYNC(inode)) 300 if (IS_SYNC(inode))
302 ufs_sync_inode (inode); 301 ufs_sync_inode (inode);
303 mark_inode_dirty(inode); 302 mark_inode_dirty(inode);
304 out: 303 out:
305 return tmp + uspi->s_sbbase; 304 return tmp + uspi->s_sbbase;
306 305
307 /* This part : To be implemented .... 306 /* This part : To be implemented ....
308 Required only for writing, not require 307 Required only for writing, not required for READ-ONLY.
309 ufs2: 308 ufs2:
310 309
311 u2_block = ufs_fragstoblks(fragment); 310 u2_block = ufs_fragstoblks(fragment);
312 u2_blockoff = ufs_fragnum(fragment); 311 u2_blockoff = ufs_fragnum(fragment);
313 p = ufsi->i_u1.u2_i_data + block; 312 p = ufsi->i_u1.u2_i_data + block;
314 goal = 0; 313 goal = 0;
315 314
316 repeat2: 315 repeat2:
317 tmp = fs32_to_cpu(sb, *p); 316 tmp = fs32_to_cpu(sb, *p);
318 lastfrag = ufsi->i_lastfrag; 317 lastfrag = ufsi->i_lastfrag;
319 318
320 */ 319 */
321 } 320 }
322 321
323 /** 322 /**
324 * ufs_inode_getblock() - allocate new block 323 * ufs_inode_getblock() - allocate new block
325 * @inode: pointer to inode 324 * @inode: pointer to inode
326 * @ind_block: block number of the indirect bl 325 * @ind_block: block number of the indirect block
327 * @index: number of pointer within the indire 326 * @index: number of pointer within the indirect block
328 * @new_fragment: number of new allocated frag 327 * @new_fragment: number of new allocated fragment
329 * (block will hold this fragment and also us 328 * (block will hold this fragment and also uspi->s_fpb-1)
330 * @err: see ufs_inode_getfrag() 329 * @err: see ufs_inode_getfrag()
331 * @new: see ufs_inode_getfrag() 330 * @new: see ufs_inode_getfrag()
332 * @locked_page: see ufs_inode_getfrag() 331 * @locked_page: see ufs_inode_getfrag()
333 */ 332 */
334 static u64 333 static u64
335 ufs_inode_getblock(struct inode *inode, u64 in 334 ufs_inode_getblock(struct inode *inode, u64 ind_block,
336 unsigned index, sector_t new 335 unsigned index, sector_t new_fragment, int *err,
337 int *new, struct page *locke 336 int *new, struct page *locked_page)
338 { 337 {
339 struct super_block *sb = inode->i_sb; 338 struct super_block *sb = inode->i_sb;
340 struct ufs_sb_private_info *uspi = UFS 339 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
341 int shift = uspi->s_apbshift - uspi->s 340 int shift = uspi->s_apbshift - uspi->s_fpbshift;
342 u64 tmp = 0, goal; 341 u64 tmp = 0, goal;
343 struct buffer_head *bh; 342 struct buffer_head *bh;
344 void *p; 343 void *p;
345 344
346 if (!ind_block) 345 if (!ind_block)
347 return 0; 346 return 0;
348 347
349 bh = sb_bread(sb, ind_block + (index > 348 bh = sb_bread(sb, ind_block + (index >> shift));
350 if (unlikely(!bh)) { 349 if (unlikely(!bh)) {
351 *err = -EIO; 350 *err = -EIO;
352 return 0; 351 return 0;
353 } 352 }
354 353
355 index &= uspi->s_apbmask >> uspi->s_fp 354 index &= uspi->s_apbmask >> uspi->s_fpbshift;
356 if (uspi->fs_magic == UFS2_MAGIC) 355 if (uspi->fs_magic == UFS2_MAGIC)
357 p = (__fs64 *)bh->b_data + ind 356 p = (__fs64 *)bh->b_data + index;
358 else 357 else
359 p = (__fs32 *)bh->b_data + ind 358 p = (__fs32 *)bh->b_data + index;
360 359
361 tmp = ufs_data_ptr_to_cpu(sb, p); 360 tmp = ufs_data_ptr_to_cpu(sb, p);
362 if (tmp) 361 if (tmp)
363 goto out; 362 goto out;
364 363
365 if (index && (uspi->fs_magic == UFS2_M 364 if (index && (uspi->fs_magic == UFS2_MAGIC ?
366 (tmp = fs64_to_cpu(sb, ( 365 (tmp = fs64_to_cpu(sb, ((__fs64 *)bh->b_data)[index-1])) :
367 (tmp = fs32_to_cpu(sb, ( 366 (tmp = fs32_to_cpu(sb, ((__fs32 *)bh->b_data)[index-1]))))
368 goal = tmp + uspi->s_fpb; 367 goal = tmp + uspi->s_fpb;
369 else 368 else
370 goal = bh->b_blocknr + uspi->s 369 goal = bh->b_blocknr + uspi->s_fpb;
371 tmp = ufs_new_fragments(inode, p, ufs_ 370 tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,
372 uspi->s_fpb, e 371 uspi->s_fpb, err, locked_page);
373 if (!tmp) 372 if (!tmp)
374 goto out; 373 goto out;
375 374
376 if (new) 375 if (new)
377 *new = 1; 376 *new = 1;
378 377
379 mark_buffer_dirty(bh); 378 mark_buffer_dirty(bh);
380 if (IS_SYNC(inode)) 379 if (IS_SYNC(inode))
381 sync_dirty_buffer(bh); 380 sync_dirty_buffer(bh);
382 inode_set_ctime_current(inode); 381 inode_set_ctime_current(inode);
383 mark_inode_dirty(inode); 382 mark_inode_dirty(inode);
384 out: 383 out:
385 brelse (bh); 384 brelse (bh);
386 UFSD("EXIT\n"); 385 UFSD("EXIT\n");
387 if (tmp) 386 if (tmp)
388 tmp += uspi->s_sbbase; 387 tmp += uspi->s_sbbase;
389 return tmp; 388 return tmp;
390 } 389 }
391 390
392 /** 391 /**
393 * ufs_getfrag_block() - `get_block_t' functio 392 * ufs_getfrag_block() - `get_block_t' function, interface between UFS and
394 * read_folio, writepages and so on !! 393 * read_folio, writepage and so on
395 */ 394 */
396 395
397 static int ufs_getfrag_block(struct inode *ino 396 static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create)
398 { 397 {
399 struct super_block *sb = inode->i_sb; 398 struct super_block *sb = inode->i_sb;
400 struct ufs_sb_private_info *uspi = UFS 399 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
401 int err = 0, new = 0; 400 int err = 0, new = 0;
402 unsigned offsets[4]; 401 unsigned offsets[4];
403 int depth = ufs_block_to_path(inode, f 402 int depth = ufs_block_to_path(inode, fragment >> uspi->s_fpbshift, offsets);
404 u64 phys64 = 0; 403 u64 phys64 = 0;
405 unsigned frag = fragment & uspi->s_fpb 404 unsigned frag = fragment & uspi->s_fpbmask;
406 405
407 phys64 = ufs_frag_map(inode, offsets, 406 phys64 = ufs_frag_map(inode, offsets, depth);
408 if (!create) 407 if (!create)
409 goto done; 408 goto done;
410 409
411 if (phys64) { 410 if (phys64) {
412 if (fragment >= UFS_NDIR_FRAGM 411 if (fragment >= UFS_NDIR_FRAGMENT)
413 goto done; 412 goto done;
414 read_seqlock_excl(&UFS_I(inode 413 read_seqlock_excl(&UFS_I(inode)->meta_lock);
415 if (fragment < UFS_I(inode)->i 414 if (fragment < UFS_I(inode)->i_lastfrag) {
416 read_sequnlock_excl(&U 415 read_sequnlock_excl(&UFS_I(inode)->meta_lock);
417 goto done; 416 goto done;
418 } 417 }
419 read_sequnlock_excl(&UFS_I(ino 418 read_sequnlock_excl(&UFS_I(inode)->meta_lock);
420 } 419 }
421 /* This code entered only while writin 420 /* This code entered only while writing ....? */
422 421
423 mutex_lock(&UFS_I(inode)->truncate_mut 422 mutex_lock(&UFS_I(inode)->truncate_mutex);
424 423
425 UFSD("ENTER, ino %lu, fragment %llu\n" 424 UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
426 if (unlikely(!depth)) { 425 if (unlikely(!depth)) {
427 ufs_warning(sb, "ufs_get_block 426 ufs_warning(sb, "ufs_get_block", "block > big");
428 err = -EIO; 427 err = -EIO;
429 goto out; 428 goto out;
430 } 429 }
431 430
432 if (UFS_I(inode)->i_lastfrag < UFS_NDI 431 if (UFS_I(inode)->i_lastfrag < UFS_NDIR_FRAGMENT) {
433 unsigned lastfrag = UFS_I(inod 432 unsigned lastfrag = UFS_I(inode)->i_lastfrag;
434 unsigned tailfrags = lastfrag 433 unsigned tailfrags = lastfrag & uspi->s_fpbmask;
435 if (tailfrags && fragment >= l 434 if (tailfrags && fragment >= lastfrag) {
436 if (!ufs_extend_tail(i 435 if (!ufs_extend_tail(inode, fragment,
437 & 436 &err, bh_result->b_page))
438 goto out; 437 goto out;
439 } 438 }
440 } 439 }
441 440
442 if (depth == 1) { 441 if (depth == 1) {
443 phys64 = ufs_inode_getfrag(ino 442 phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,
444 &er 443 &err, &new, bh_result->b_page);
445 } else { 444 } else {
446 int i; 445 int i;
447 phys64 = ufs_inode_getfrag(ino 446 phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,
448 &er 447 &err, NULL, NULL);
449 for (i = 1; i < depth - 1; i++ 448 for (i = 1; i < depth - 1; i++)
450 phys64 = ufs_inode_get 449 phys64 = ufs_inode_getblock(inode, phys64, offsets[i],
451 450 fragment, &err, NULL, NULL);
452 phys64 = ufs_inode_getblock(in 451 phys64 = ufs_inode_getblock(inode, phys64, offsets[depth - 1],
453 fragme 452 fragment, &err, &new, bh_result->b_page);
454 } 453 }
455 out: 454 out:
456 if (phys64) { 455 if (phys64) {
457 phys64 += frag; 456 phys64 += frag;
458 map_bh(bh_result, sb, phys64); 457 map_bh(bh_result, sb, phys64);
459 if (new) 458 if (new)
460 set_buffer_new(bh_resu 459 set_buffer_new(bh_result);
461 } 460 }
462 mutex_unlock(&UFS_I(inode)->truncate_m 461 mutex_unlock(&UFS_I(inode)->truncate_mutex);
463 return err; 462 return err;
464 463
465 done: 464 done:
466 if (phys64) 465 if (phys64)
467 map_bh(bh_result, sb, phys64 + 466 map_bh(bh_result, sb, phys64 + frag);
468 return 0; 467 return 0;
469 } 468 }
470 469
471 static int ufs_writepages(struct address_space !! 470 static int ufs_writepage(struct page *page, struct writeback_control *wbc)
472 struct writeback_control *wbc) <<
473 { 471 {
474 return mpage_writepages(mapping, wbc, !! 472 return block_write_full_page(page,ufs_getfrag_block,wbc);
475 } 473 }
476 474
477 static int ufs_read_folio(struct file *file, s 475 static int ufs_read_folio(struct file *file, struct folio *folio)
478 { 476 {
479 return block_read_full_folio(folio, uf 477 return block_read_full_folio(folio, ufs_getfrag_block);
480 } 478 }
481 479
482 int ufs_prepare_chunk(struct page *page, loff_ 480 int ufs_prepare_chunk(struct page *page, loff_t pos, unsigned len)
483 { 481 {
484 return __block_write_begin(page, pos, 482 return __block_write_begin(page, pos, len, ufs_getfrag_block);
485 } 483 }
486 484
487 static void ufs_truncate_blocks(struct inode * 485 static void ufs_truncate_blocks(struct inode *);
488 486
489 static void ufs_write_failed(struct address_sp 487 static void ufs_write_failed(struct address_space *mapping, loff_t to)
490 { 488 {
491 struct inode *inode = mapping->host; 489 struct inode *inode = mapping->host;
492 490
493 if (to > inode->i_size) { 491 if (to > inode->i_size) {
494 truncate_pagecache(inode, inod 492 truncate_pagecache(inode, inode->i_size);
495 ufs_truncate_blocks(inode); 493 ufs_truncate_blocks(inode);
496 } 494 }
497 } 495 }
498 496
499 static int ufs_write_begin(struct file *file, 497 static int ufs_write_begin(struct file *file, struct address_space *mapping,
500 loff_t pos, unsigned l 498 loff_t pos, unsigned len,
501 struct page **pagep, v 499 struct page **pagep, void **fsdata)
502 { 500 {
503 int ret; 501 int ret;
504 502
505 ret = block_write_begin(mapping, pos, 503 ret = block_write_begin(mapping, pos, len, pagep, ufs_getfrag_block);
506 if (unlikely(ret)) 504 if (unlikely(ret))
507 ufs_write_failed(mapping, pos 505 ufs_write_failed(mapping, pos + len);
508 506
509 return ret; 507 return ret;
510 } 508 }
511 509
512 static int ufs_write_end(struct file *file, st 510 static int ufs_write_end(struct file *file, struct address_space *mapping,
513 loff_t pos, unsigned l 511 loff_t pos, unsigned len, unsigned copied,
514 struct page *page, voi 512 struct page *page, void *fsdata)
515 { 513 {
516 int ret; 514 int ret;
517 515
518 ret = generic_write_end(file, mapping, 516 ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
519 if (ret < len) 517 if (ret < len)
520 ufs_write_failed(mapping, pos 518 ufs_write_failed(mapping, pos + len);
521 return ret; 519 return ret;
522 } 520 }
523 521
524 static sector_t ufs_bmap(struct address_space 522 static sector_t ufs_bmap(struct address_space *mapping, sector_t block)
525 { 523 {
526 return generic_block_bmap(mapping,bloc 524 return generic_block_bmap(mapping,block,ufs_getfrag_block);
527 } 525 }
528 526
529 const struct address_space_operations ufs_aops 527 const struct address_space_operations ufs_aops = {
530 .dirty_folio = block_dirty_folio, 528 .dirty_folio = block_dirty_folio,
531 .invalidate_folio = block_invalidate_f 529 .invalidate_folio = block_invalidate_folio,
532 .read_folio = ufs_read_folio, 530 .read_folio = ufs_read_folio,
533 .writepages = ufs_writepages, !! 531 .writepage = ufs_writepage,
534 .write_begin = ufs_write_begin, 532 .write_begin = ufs_write_begin,
535 .write_end = ufs_write_end, 533 .write_end = ufs_write_end,
536 .migrate_folio = buffer_migrate_folio, <<
537 .bmap = ufs_bmap 534 .bmap = ufs_bmap
538 }; 535 };
539 536
540 static void ufs_set_inode_ops(struct inode *in 537 static void ufs_set_inode_ops(struct inode *inode)
541 { 538 {
542 if (S_ISREG(inode->i_mode)) { 539 if (S_ISREG(inode->i_mode)) {
543 inode->i_op = &ufs_file_inode_ 540 inode->i_op = &ufs_file_inode_operations;
544 inode->i_fop = &ufs_file_opera 541 inode->i_fop = &ufs_file_operations;
545 inode->i_mapping->a_ops = &ufs 542 inode->i_mapping->a_ops = &ufs_aops;
546 } else if (S_ISDIR(inode->i_mode)) { 543 } else if (S_ISDIR(inode->i_mode)) {
547 inode->i_op = &ufs_dir_inode_o 544 inode->i_op = &ufs_dir_inode_operations;
548 inode->i_fop = &ufs_dir_operat 545 inode->i_fop = &ufs_dir_operations;
549 inode->i_mapping->a_ops = &ufs 546 inode->i_mapping->a_ops = &ufs_aops;
550 } else if (S_ISLNK(inode->i_mode)) { 547 } else if (S_ISLNK(inode->i_mode)) {
551 if (!inode->i_blocks) { 548 if (!inode->i_blocks) {
552 inode->i_link = (char 549 inode->i_link = (char *)UFS_I(inode)->i_u1.i_symlink;
553 inode->i_op = &simple_ 550 inode->i_op = &simple_symlink_inode_operations;
554 } else { 551 } else {
555 inode->i_mapping->a_op 552 inode->i_mapping->a_ops = &ufs_aops;
556 inode->i_op = &page_sy 553 inode->i_op = &page_symlink_inode_operations;
557 inode_nohighmem(inode) 554 inode_nohighmem(inode);
558 } 555 }
559 } else 556 } else
560 init_special_inode(inode, inod 557 init_special_inode(inode, inode->i_mode,
561 ufs_get_ino 558 ufs_get_inode_dev(inode->i_sb, UFS_I(inode)));
562 } 559 }
563 560
564 static int ufs1_read_inode(struct inode *inode 561 static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
565 { 562 {
566 struct ufs_inode_info *ufsi = UFS_I(in 563 struct ufs_inode_info *ufsi = UFS_I(inode);
567 struct super_block *sb = inode->i_sb; 564 struct super_block *sb = inode->i_sb;
568 umode_t mode; 565 umode_t mode;
569 566
570 /* 567 /*
571 * Copy data to the in-core inode. 568 * Copy data to the in-core inode.
572 */ 569 */
573 inode->i_mode = mode = fs16_to_cpu(sb, 570 inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode);
574 set_nlink(inode, fs16_to_cpu(sb, ufs_i 571 set_nlink(inode, fs16_to_cpu(sb, ufs_inode->ui_nlink));
575 if (inode->i_nlink == 0) 572 if (inode->i_nlink == 0)
576 return -ESTALE; 573 return -ESTALE;
577 574
578 /* 575 /*
579 * Linux now has 32-bit uid and gid, s 576 * Linux now has 32-bit uid and gid, so we can support EFT.
580 */ 577 */
581 i_uid_write(inode, ufs_get_inode_uid(s 578 i_uid_write(inode, ufs_get_inode_uid(sb, ufs_inode));
582 i_gid_write(inode, ufs_get_inode_gid(s 579 i_gid_write(inode, ufs_get_inode_gid(sb, ufs_inode));
583 580
584 inode->i_size = fs64_to_cpu(sb, ufs_in 581 inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);
585 inode_set_atime(inode, !! 582 inode->i_atime.tv_sec = (signed)fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec);
586 (signed)fs32_to_cpu(sb <<
587 0); <<
588 inode_set_ctime(inode, 583 inode_set_ctime(inode,
589 (signed)fs32_to_cpu(sb 584 (signed)fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec),
590 0); 585 0);
591 inode_set_mtime(inode, !! 586 inode->i_mtime.tv_sec = (signed)fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec);
592 (signed)fs32_to_cpu(sb !! 587 inode->i_mtime.tv_nsec = 0;
593 0); !! 588 inode->i_atime.tv_nsec = 0;
594 inode->i_blocks = fs32_to_cpu(sb, ufs_ 589 inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
595 inode->i_generation = fs32_to_cpu(sb, 590 inode->i_generation = fs32_to_cpu(sb, ufs_inode->ui_gen);
596 ufsi->i_flags = fs32_to_cpu(sb, ufs_in 591 ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
597 ufsi->i_shadow = fs32_to_cpu(sb, ufs_i 592 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
598 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs 593 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
599 594
600 595
601 if (S_ISCHR(mode) || S_ISBLK(mode) || 596 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
602 memcpy(ufsi->i_u1.i_data, &ufs 597 memcpy(ufsi->i_u1.i_data, &ufs_inode->ui_u2.ui_addr,
603 sizeof(ufs_inode->ui_u2 598 sizeof(ufs_inode->ui_u2.ui_addr));
604 } else { 599 } else {
605 memcpy(ufsi->i_u1.i_symlink, u 600 memcpy(ufsi->i_u1.i_symlink, ufs_inode->ui_u2.ui_symlink,
606 sizeof(ufs_inode->ui_u2 601 sizeof(ufs_inode->ui_u2.ui_symlink) - 1);
607 ufsi->i_u1.i_symlink[sizeof(uf 602 ufsi->i_u1.i_symlink[sizeof(ufs_inode->ui_u2.ui_symlink) - 1] = 0;
608 } 603 }
609 return 0; 604 return 0;
610 } 605 }
611 606
612 static int ufs2_read_inode(struct inode *inode 607 static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
613 { 608 {
614 struct ufs_inode_info *ufsi = UFS_I(in 609 struct ufs_inode_info *ufsi = UFS_I(inode);
615 struct super_block *sb = inode->i_sb; 610 struct super_block *sb = inode->i_sb;
616 umode_t mode; 611 umode_t mode;
617 612
618 UFSD("Reading ufs2 inode, ino %lu\n", 613 UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
619 /* 614 /*
620 * Copy data to the in-core inode. 615 * Copy data to the in-core inode.
621 */ 616 */
622 inode->i_mode = mode = fs16_to_cpu(sb, 617 inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);
623 set_nlink(inode, fs16_to_cpu(sb, ufs2_ 618 set_nlink(inode, fs16_to_cpu(sb, ufs2_inode->ui_nlink));
624 if (inode->i_nlink == 0) 619 if (inode->i_nlink == 0)
625 return -ESTALE; 620 return -ESTALE;
626 621
627 /* 622 /*
628 * Linux now has 32-bit uid and gid, s 623 * Linux now has 32-bit uid and gid, so we can support EFT.
629 */ 624 */
630 i_uid_write(inode, fs32_to_cpu(sb, ufs 625 i_uid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_uid));
631 i_gid_write(inode, fs32_to_cpu(sb, ufs 626 i_gid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_gid));
632 627
633 inode->i_size = fs64_to_cpu(sb, ufs2_i 628 inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);
634 inode_set_atime(inode, fs64_to_cpu(sb, !! 629 inode->i_atime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_atime);
635 fs32_to_cpu(sb, ufs2_i <<
636 inode_set_ctime(inode, fs64_to_cpu(sb, 630 inode_set_ctime(inode, fs64_to_cpu(sb, ufs2_inode->ui_ctime),
637 fs32_to_cpu(sb, ufs2_i 631 fs32_to_cpu(sb, ufs2_inode->ui_ctimensec));
638 inode_set_mtime(inode, fs64_to_cpu(sb, !! 632 inode->i_mtime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_mtime);
639 fs32_to_cpu(sb, ufs2_i !! 633 inode->i_atime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_atimensec);
>> 634 inode->i_mtime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_mtimensec);
640 inode->i_blocks = fs64_to_cpu(sb, ufs2 635 inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);
641 inode->i_generation = fs32_to_cpu(sb, 636 inode->i_generation = fs32_to_cpu(sb, ufs2_inode->ui_gen);
642 ufsi->i_flags = fs32_to_cpu(sb, ufs2_i 637 ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags);
643 /* 638 /*
644 ufsi->i_shadow = fs32_to_cpu(sb, ufs_i 639 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
645 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs 640 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
646 */ 641 */
647 642
648 if (S_ISCHR(mode) || S_ISBLK(mode) || 643 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
649 memcpy(ufsi->i_u1.u2_i_data, & 644 memcpy(ufsi->i_u1.u2_i_data, &ufs2_inode->ui_u2.ui_addr,
650 sizeof(ufs2_inode->ui_u 645 sizeof(ufs2_inode->ui_u2.ui_addr));
651 } else { 646 } else {
652 memcpy(ufsi->i_u1.i_symlink, u 647 memcpy(ufsi->i_u1.i_symlink, ufs2_inode->ui_u2.ui_symlink,
653 sizeof(ufs2_inode->ui_u 648 sizeof(ufs2_inode->ui_u2.ui_symlink) - 1);
654 ufsi->i_u1.i_symlink[sizeof(uf 649 ufsi->i_u1.i_symlink[sizeof(ufs2_inode->ui_u2.ui_symlink) - 1] = 0;
655 } 650 }
656 return 0; 651 return 0;
657 } 652 }
658 653
659 struct inode *ufs_iget(struct super_block *sb, 654 struct inode *ufs_iget(struct super_block *sb, unsigned long ino)
660 { 655 {
661 struct ufs_inode_info *ufsi; 656 struct ufs_inode_info *ufsi;
662 struct ufs_sb_private_info *uspi = UFS 657 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
663 struct buffer_head * bh; 658 struct buffer_head * bh;
664 struct inode *inode; 659 struct inode *inode;
665 int err = -EIO; 660 int err = -EIO;
666 661
667 UFSD("ENTER, ino %lu\n", ino); 662 UFSD("ENTER, ino %lu\n", ino);
668 663
669 if (ino < UFS_ROOTINO || ino > (uspi-> 664 if (ino < UFS_ROOTINO || ino > (uspi->s_ncg * uspi->s_ipg)) {
670 ufs_warning(sb, "ufs_read_inod 665 ufs_warning(sb, "ufs_read_inode", "bad inode number (%lu)\n",
671 ino); 666 ino);
672 return ERR_PTR(-EIO); 667 return ERR_PTR(-EIO);
673 } 668 }
674 669
675 inode = iget_locked(sb, ino); 670 inode = iget_locked(sb, ino);
676 if (!inode) 671 if (!inode)
677 return ERR_PTR(-ENOMEM); 672 return ERR_PTR(-ENOMEM);
678 if (!(inode->i_state & I_NEW)) 673 if (!(inode->i_state & I_NEW))
679 return inode; 674 return inode;
680 675
681 ufsi = UFS_I(inode); 676 ufsi = UFS_I(inode);
682 677
683 bh = sb_bread(sb, uspi->s_sbbase + ufs 678 bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
684 if (!bh) { 679 if (!bh) {
685 ufs_warning(sb, "ufs_read_inod 680 ufs_warning(sb, "ufs_read_inode", "unable to read inode %lu\n",
686 inode->i_ino); 681 inode->i_ino);
687 goto bad_inode; 682 goto bad_inode;
688 } 683 }
689 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MA 684 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
690 struct ufs2_inode *ufs2_inode 685 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
691 686
692 err = ufs2_read_inode(inode, 687 err = ufs2_read_inode(inode,
693 ufs2_ino 688 ufs2_inode + ufs_inotofsbo(inode->i_ino));
694 } else { 689 } else {
695 struct ufs_inode *ufs_inode = 690 struct ufs_inode *ufs_inode = (struct ufs_inode *)bh->b_data;
696 691
697 err = ufs1_read_inode(inode, 692 err = ufs1_read_inode(inode,
698 ufs_inod 693 ufs_inode + ufs_inotofsbo(inode->i_ino));
699 } 694 }
700 brelse(bh); 695 brelse(bh);
701 if (err) 696 if (err)
702 goto bad_inode; 697 goto bad_inode;
703 698
704 inode_inc_iversion(inode); 699 inode_inc_iversion(inode);
705 ufsi->i_lastfrag = 700 ufsi->i_lastfrag =
706 (inode->i_size + uspi->s_fsize 701 (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
707 ufsi->i_dir_start_lookup = 0; 702 ufsi->i_dir_start_lookup = 0;
708 ufsi->i_osync = 0; 703 ufsi->i_osync = 0;
709 704
710 ufs_set_inode_ops(inode); 705 ufs_set_inode_ops(inode);
711 706
712 UFSD("EXIT\n"); 707 UFSD("EXIT\n");
713 unlock_new_inode(inode); 708 unlock_new_inode(inode);
714 return inode; 709 return inode;
715 710
716 bad_inode: 711 bad_inode:
717 iget_failed(inode); 712 iget_failed(inode);
718 return ERR_PTR(err); 713 return ERR_PTR(err);
719 } 714 }
720 715
721 static void ufs1_update_inode(struct inode *in 716 static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
722 { 717 {
723 struct super_block *sb = inode->i_sb; 718 struct super_block *sb = inode->i_sb;
724 struct ufs_inode_info *ufsi = UFS_I(in 719 struct ufs_inode_info *ufsi = UFS_I(inode);
725 720
726 ufs_inode->ui_mode = cpu_to_fs16(sb, i 721 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
727 ufs_inode->ui_nlink = cpu_to_fs16(sb, 722 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
728 723
729 ufs_set_inode_uid(sb, ufs_inode, i_uid 724 ufs_set_inode_uid(sb, ufs_inode, i_uid_read(inode));
730 ufs_set_inode_gid(sb, ufs_inode, i_gid 725 ufs_set_inode_gid(sb, ufs_inode, i_gid_read(inode));
731 726
732 ufs_inode->ui_size = cpu_to_fs64(sb, i 727 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
733 ufs_inode->ui_atime.tv_sec = cpu_to_fs !! 728 ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec);
734 <<
735 ufs_inode->ui_atime.tv_usec = 0; 729 ufs_inode->ui_atime.tv_usec = 0;
736 ufs_inode->ui_ctime.tv_sec = cpu_to_fs 730 ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb,
737 !! 731 inode_get_ctime(inode).tv_sec);
738 ufs_inode->ui_ctime.tv_usec = 0; 732 ufs_inode->ui_ctime.tv_usec = 0;
739 ufs_inode->ui_mtime.tv_sec = cpu_to_fs !! 733 ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec);
740 <<
741 ufs_inode->ui_mtime.tv_usec = 0; 734 ufs_inode->ui_mtime.tv_usec = 0;
742 ufs_inode->ui_blocks = cpu_to_fs32(sb, 735 ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
743 ufs_inode->ui_flags = cpu_to_fs32(sb, 736 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
744 ufs_inode->ui_gen = cpu_to_fs32(sb, in 737 ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
745 738
746 if ((UFS_SB(sb)->s_flags & UFS_UID_MAS 739 if ((UFS_SB(sb)->s_flags & UFS_UID_MASK) == UFS_UID_EFT) {
747 ufs_inode->ui_u3.ui_sun.ui_sha 740 ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow);
748 ufs_inode->ui_u3.ui_sun.ui_oef 741 ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag);
749 } 742 }
750 743
751 if (S_ISCHR(inode->i_mode) || S_ISBLK( 744 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
752 /* ufs_inode->ui_u2.ui_addr.ui 745 /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
753 ufs_inode->ui_u2.ui_addr.ui_db 746 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
754 } else if (inode->i_blocks) { 747 } else if (inode->i_blocks) {
755 memcpy(&ufs_inode->ui_u2.ui_ad 748 memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.i_data,
756 sizeof(ufs_inode->ui_u2 749 sizeof(ufs_inode->ui_u2.ui_addr));
757 } 750 }
758 else { 751 else {
759 memcpy(&ufs_inode->ui_u2.ui_sy 752 memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
760 sizeof(ufs_inode->ui_u2 753 sizeof(ufs_inode->ui_u2.ui_symlink));
761 } 754 }
762 755
763 if (!inode->i_nlink) 756 if (!inode->i_nlink)
764 memset (ufs_inode, 0, sizeof(s 757 memset (ufs_inode, 0, sizeof(struct ufs_inode));
765 } 758 }
766 759
767 static void ufs2_update_inode(struct inode *in 760 static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
768 { 761 {
769 struct super_block *sb = inode->i_sb; 762 struct super_block *sb = inode->i_sb;
770 struct ufs_inode_info *ufsi = UFS_I(in 763 struct ufs_inode_info *ufsi = UFS_I(inode);
771 764
772 UFSD("ENTER\n"); 765 UFSD("ENTER\n");
773 ufs_inode->ui_mode = cpu_to_fs16(sb, i 766 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
774 ufs_inode->ui_nlink = cpu_to_fs16(sb, 767 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
775 768
776 ufs_inode->ui_uid = cpu_to_fs32(sb, i_ 769 ufs_inode->ui_uid = cpu_to_fs32(sb, i_uid_read(inode));
777 ufs_inode->ui_gid = cpu_to_fs32(sb, i_ 770 ufs_inode->ui_gid = cpu_to_fs32(sb, i_gid_read(inode));
778 771
779 ufs_inode->ui_size = cpu_to_fs64(sb, i 772 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
780 ufs_inode->ui_atime = cpu_to_fs64(sb, !! 773 ufs_inode->ui_atime = cpu_to_fs64(sb, inode->i_atime.tv_sec);
781 ufs_inode->ui_atimensec = cpu_to_fs32( !! 774 ufs_inode->ui_atimensec = cpu_to_fs32(sb, inode->i_atime.tv_nsec);
782 !! 775 ufs_inode->ui_ctime = cpu_to_fs64(sb, inode_get_ctime(inode).tv_sec);
783 ufs_inode->ui_ctime = cpu_to_fs64(sb, <<
784 ufs_inode->ui_ctimensec = cpu_to_fs32( 776 ufs_inode->ui_ctimensec = cpu_to_fs32(sb,
785 !! 777 inode_get_ctime(inode).tv_nsec);
786 ufs_inode->ui_mtime = cpu_to_fs64(sb, !! 778 ufs_inode->ui_mtime = cpu_to_fs64(sb, inode->i_mtime.tv_sec);
787 ufs_inode->ui_mtimensec = cpu_to_fs32( !! 779 ufs_inode->ui_mtimensec = cpu_to_fs32(sb, inode->i_mtime.tv_nsec);
788 <<
789 780
790 ufs_inode->ui_blocks = cpu_to_fs64(sb, 781 ufs_inode->ui_blocks = cpu_to_fs64(sb, inode->i_blocks);
791 ufs_inode->ui_flags = cpu_to_fs32(sb, 782 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
792 ufs_inode->ui_gen = cpu_to_fs32(sb, in 783 ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
793 784
794 if (S_ISCHR(inode->i_mode) || S_ISBLK( 785 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
795 /* ufs_inode->ui_u2.ui_addr.ui 786 /* ufs_inode->ui_u2.ui_addr.ui_db[0] = cpu_to_fs32(sb, inode->i_rdev); */
796 ufs_inode->ui_u2.ui_addr.ui_db 787 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.u2_i_data[0];
797 } else if (inode->i_blocks) { 788 } else if (inode->i_blocks) {
798 memcpy(&ufs_inode->ui_u2.ui_ad 789 memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.u2_i_data,
799 sizeof(ufs_inode->ui_u2 790 sizeof(ufs_inode->ui_u2.ui_addr));
800 } else { 791 } else {
801 memcpy(&ufs_inode->ui_u2.ui_sy 792 memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
802 sizeof(ufs_inode->ui_u2 793 sizeof(ufs_inode->ui_u2.ui_symlink));
803 } 794 }
804 795
805 if (!inode->i_nlink) 796 if (!inode->i_nlink)
806 memset (ufs_inode, 0, sizeof(s 797 memset (ufs_inode, 0, sizeof(struct ufs2_inode));
807 UFSD("EXIT\n"); 798 UFSD("EXIT\n");
808 } 799 }
809 800
810 static int ufs_update_inode(struct inode * ino 801 static int ufs_update_inode(struct inode * inode, int do_sync)
811 { 802 {
812 struct super_block *sb = inode->i_sb; 803 struct super_block *sb = inode->i_sb;
813 struct ufs_sb_private_info *uspi = UFS 804 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
814 struct buffer_head * bh; 805 struct buffer_head * bh;
815 806
816 UFSD("ENTER, ino %lu\n", inode->i_ino) 807 UFSD("ENTER, ino %lu\n", inode->i_ino);
817 808
818 if (inode->i_ino < UFS_ROOTINO || 809 if (inode->i_ino < UFS_ROOTINO ||
819 inode->i_ino > (uspi->s_ncg * uspi 810 inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
820 ufs_warning (sb, "ufs_read_ino 811 ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
821 return -1; 812 return -1;
822 } 813 }
823 814
824 bh = sb_bread(sb, ufs_inotofsba(inode- 815 bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
825 if (!bh) { 816 if (!bh) {
826 ufs_warning (sb, "ufs_read_ino 817 ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
827 return -1; 818 return -1;
828 } 819 }
829 if (uspi->fs_magic == UFS2_MAGIC) { 820 if (uspi->fs_magic == UFS2_MAGIC) {
830 struct ufs2_inode *ufs2_inode 821 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
831 822
832 ufs2_update_inode(inode, 823 ufs2_update_inode(inode,
833 ufs2_inode + 824 ufs2_inode + ufs_inotofsbo(inode->i_ino));
834 } else { 825 } else {
835 struct ufs_inode *ufs_inode = 826 struct ufs_inode *ufs_inode = (struct ufs_inode *) bh->b_data;
836 827
837 ufs1_update_inode(inode, ufs_i 828 ufs1_update_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));
838 } 829 }
839 830
840 mark_buffer_dirty(bh); 831 mark_buffer_dirty(bh);
841 if (do_sync) 832 if (do_sync)
842 sync_dirty_buffer(bh); 833 sync_dirty_buffer(bh);
843 brelse (bh); 834 brelse (bh);
844 835
845 UFSD("EXIT\n"); 836 UFSD("EXIT\n");
846 return 0; 837 return 0;
847 } 838 }
848 839
849 int ufs_write_inode(struct inode *inode, struc 840 int ufs_write_inode(struct inode *inode, struct writeback_control *wbc)
850 { 841 {
851 return ufs_update_inode(inode, wbc->sy 842 return ufs_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
852 } 843 }
853 844
854 int ufs_sync_inode (struct inode *inode) 845 int ufs_sync_inode (struct inode *inode)
855 { 846 {
856 return ufs_update_inode (inode, 1); 847 return ufs_update_inode (inode, 1);
857 } 848 }
858 849
859 void ufs_evict_inode(struct inode * inode) 850 void ufs_evict_inode(struct inode * inode)
860 { 851 {
861 int want_delete = 0; 852 int want_delete = 0;
862 853
863 if (!inode->i_nlink && !is_bad_inode(i 854 if (!inode->i_nlink && !is_bad_inode(inode))
864 want_delete = 1; 855 want_delete = 1;
865 856
866 truncate_inode_pages_final(&inode->i_d 857 truncate_inode_pages_final(&inode->i_data);
867 if (want_delete) { 858 if (want_delete) {
868 inode->i_size = 0; 859 inode->i_size = 0;
869 if (inode->i_blocks && 860 if (inode->i_blocks &&
870 (S_ISREG(inode->i_mode) || 861 (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
871 S_ISLNK(inode->i_mode))) 862 S_ISLNK(inode->i_mode)))
872 ufs_truncate_blocks(in 863 ufs_truncate_blocks(inode);
873 ufs_update_inode(inode, inode_ 864 ufs_update_inode(inode, inode_needs_sync(inode));
874 } 865 }
875 866
876 invalidate_inode_buffers(inode); 867 invalidate_inode_buffers(inode);
877 clear_inode(inode); 868 clear_inode(inode);
878 869
879 if (want_delete) 870 if (want_delete)
880 ufs_free_inode(inode); 871 ufs_free_inode(inode);
881 } 872 }
882 873
883 struct to_free { 874 struct to_free {
884 struct inode *inode; 875 struct inode *inode;
885 u64 to; 876 u64 to;
886 unsigned count; 877 unsigned count;
887 }; 878 };
888 879
889 static inline void free_data(struct to_free *c 880 static inline void free_data(struct to_free *ctx, u64 from, unsigned count)
890 { 881 {
891 if (ctx->count && ctx->to != from) { 882 if (ctx->count && ctx->to != from) {
892 ufs_free_blocks(ctx->inode, ct 883 ufs_free_blocks(ctx->inode, ctx->to - ctx->count, ctx->count);
893 ctx->count = 0; 884 ctx->count = 0;
894 } 885 }
895 ctx->count += count; 886 ctx->count += count;
896 ctx->to = from + count; 887 ctx->to = from + count;
897 } 888 }
898 889
899 #define DIRECT_FRAGMENT ((inode->i_size + uspi 890 #define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
900 891
901 static void ufs_trunc_direct(struct inode *ino 892 static void ufs_trunc_direct(struct inode *inode)
902 { 893 {
903 struct ufs_inode_info *ufsi = UFS_I(in 894 struct ufs_inode_info *ufsi = UFS_I(inode);
904 struct super_block * sb; 895 struct super_block * sb;
905 struct ufs_sb_private_info * uspi; 896 struct ufs_sb_private_info * uspi;
906 void *p; 897 void *p;
907 u64 frag1, frag2, frag3, frag4, block1 898 u64 frag1, frag2, frag3, frag4, block1, block2;
908 struct to_free ctx = {.inode = inode}; 899 struct to_free ctx = {.inode = inode};
909 unsigned i, tmp; 900 unsigned i, tmp;
910 901
911 UFSD("ENTER: ino %lu\n", inode->i_ino) 902 UFSD("ENTER: ino %lu\n", inode->i_ino);
912 903
913 sb = inode->i_sb; 904 sb = inode->i_sb;
914 uspi = UFS_SB(sb)->s_uspi; 905 uspi = UFS_SB(sb)->s_uspi;
915 906
916 frag1 = DIRECT_FRAGMENT; 907 frag1 = DIRECT_FRAGMENT;
917 frag4 = min_t(u64, UFS_NDIR_FRAGMENT, 908 frag4 = min_t(u64, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag);
918 frag2 = ((frag1 & uspi->s_fpbmask) ? ( 909 frag2 = ((frag1 & uspi->s_fpbmask) ? ((frag1 | uspi->s_fpbmask) + 1) : frag1);
919 frag3 = frag4 & ~uspi->s_fpbmask; 910 frag3 = frag4 & ~uspi->s_fpbmask;
920 block1 = block2 = 0; 911 block1 = block2 = 0;
921 if (frag2 > frag3) { 912 if (frag2 > frag3) {
922 frag2 = frag4; 913 frag2 = frag4;
923 frag3 = frag4 = 0; 914 frag3 = frag4 = 0;
924 } else if (frag2 < frag3) { 915 } else if (frag2 < frag3) {
925 block1 = ufs_fragstoblks (frag 916 block1 = ufs_fragstoblks (frag2);
926 block2 = ufs_fragstoblks (frag 917 block2 = ufs_fragstoblks (frag3);
927 } 918 }
928 919
929 UFSD("ino %lu, frag1 %llu, frag2 %llu, 920 UFSD("ino %lu, frag1 %llu, frag2 %llu, block1 %llu, block2 %llu,"
930 " frag3 %llu, frag4 %llu\n", inod 921 " frag3 %llu, frag4 %llu\n", inode->i_ino,
931 (unsigned long long)frag1, (unsig 922 (unsigned long long)frag1, (unsigned long long)frag2,
932 (unsigned long long)block1, (unsi 923 (unsigned long long)block1, (unsigned long long)block2,
933 (unsigned long long)frag3, (unsig 924 (unsigned long long)frag3, (unsigned long long)frag4);
934 925
935 if (frag1 >= frag2) 926 if (frag1 >= frag2)
936 goto next1; 927 goto next1;
937 928
938 /* 929 /*
939 * Free first free fragments 930 * Free first free fragments
940 */ 931 */
941 p = ufs_get_direct_data_ptr(uspi, ufsi 932 p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag1));
942 tmp = ufs_data_ptr_to_cpu(sb, p); 933 tmp = ufs_data_ptr_to_cpu(sb, p);
943 if (!tmp ) 934 if (!tmp )
944 ufs_panic (sb, "ufs_trunc_dire 935 ufs_panic (sb, "ufs_trunc_direct", "internal error");
945 frag2 -= frag1; 936 frag2 -= frag1;
946 frag1 = ufs_fragnum (frag1); 937 frag1 = ufs_fragnum (frag1);
947 938
948 ufs_free_fragments(inode, tmp + frag1, 939 ufs_free_fragments(inode, tmp + frag1, frag2);
949 940
950 next1: 941 next1:
951 /* 942 /*
952 * Free whole blocks 943 * Free whole blocks
953 */ 944 */
954 for (i = block1 ; i < block2; i++) { 945 for (i = block1 ; i < block2; i++) {
955 p = ufs_get_direct_data_ptr(us 946 p = ufs_get_direct_data_ptr(uspi, ufsi, i);
956 tmp = ufs_data_ptr_to_cpu(sb, 947 tmp = ufs_data_ptr_to_cpu(sb, p);
957 if (!tmp) 948 if (!tmp)
958 continue; 949 continue;
959 write_seqlock(&ufsi->meta_lock 950 write_seqlock(&ufsi->meta_lock);
960 ufs_data_ptr_clear(uspi, p); 951 ufs_data_ptr_clear(uspi, p);
961 write_sequnlock(&ufsi->meta_lo 952 write_sequnlock(&ufsi->meta_lock);
962 953
963 free_data(&ctx, tmp, uspi->s_f 954 free_data(&ctx, tmp, uspi->s_fpb);
964 } 955 }
965 956
966 free_data(&ctx, 0, 0); 957 free_data(&ctx, 0, 0);
967 958
968 if (frag3 >= frag4) 959 if (frag3 >= frag4)
969 goto next3; 960 goto next3;
970 961
971 /* 962 /*
972 * Free last free fragments 963 * Free last free fragments
973 */ 964 */
974 p = ufs_get_direct_data_ptr(uspi, ufsi 965 p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag3));
975 tmp = ufs_data_ptr_to_cpu(sb, p); 966 tmp = ufs_data_ptr_to_cpu(sb, p);
976 if (!tmp ) 967 if (!tmp )
977 ufs_panic(sb, "ufs_truncate_di 968 ufs_panic(sb, "ufs_truncate_direct", "internal error");
978 frag4 = ufs_fragnum (frag4); 969 frag4 = ufs_fragnum (frag4);
979 write_seqlock(&ufsi->meta_lock); 970 write_seqlock(&ufsi->meta_lock);
980 ufs_data_ptr_clear(uspi, p); 971 ufs_data_ptr_clear(uspi, p);
981 write_sequnlock(&ufsi->meta_lock); 972 write_sequnlock(&ufsi->meta_lock);
982 973
983 ufs_free_fragments (inode, tmp, frag4) 974 ufs_free_fragments (inode, tmp, frag4);
984 next3: 975 next3:
985 976
986 UFSD("EXIT: ino %lu\n", inode->i_ino); 977 UFSD("EXIT: ino %lu\n", inode->i_ino);
987 } 978 }
988 979
989 static void free_full_branch(struct inode *ino 980 static void free_full_branch(struct inode *inode, u64 ind_block, int depth)
990 { 981 {
991 struct super_block *sb = inode->i_sb; 982 struct super_block *sb = inode->i_sb;
992 struct ufs_sb_private_info *uspi = UFS 983 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
993 struct ufs_buffer_head *ubh = ubh_brea 984 struct ufs_buffer_head *ubh = ubh_bread(sb, ind_block, uspi->s_bsize);
994 unsigned i; 985 unsigned i;
995 986
996 if (!ubh) 987 if (!ubh)
997 return; 988 return;
998 989
999 if (--depth) { 990 if (--depth) {
1000 for (i = 0; i < uspi->s_apb; 991 for (i = 0; i < uspi->s_apb; i++) {
1001 void *p = ubh_get_dat 992 void *p = ubh_get_data_ptr(uspi, ubh, i);
1002 u64 block = ufs_data_ 993 u64 block = ufs_data_ptr_to_cpu(sb, p);
1003 if (block) 994 if (block)
1004 free_full_bra 995 free_full_branch(inode, block, depth);
1005 } 996 }
1006 } else { 997 } else {
1007 struct to_free ctx = {.inode 998 struct to_free ctx = {.inode = inode};
1008 999
1009 for (i = 0; i < uspi->s_apb; 1000 for (i = 0; i < uspi->s_apb; i++) {
1010 void *p = ubh_get_dat 1001 void *p = ubh_get_data_ptr(uspi, ubh, i);
1011 u64 block = ufs_data_ 1002 u64 block = ufs_data_ptr_to_cpu(sb, p);
1012 if (block) 1003 if (block)
1013 free_data(&ct 1004 free_data(&ctx, block, uspi->s_fpb);
1014 } 1005 }
1015 free_data(&ctx, 0, 0); 1006 free_data(&ctx, 0, 0);
1016 } 1007 }
1017 1008
1018 ubh_bforget(ubh); 1009 ubh_bforget(ubh);
1019 ufs_free_blocks(inode, ind_block, usp 1010 ufs_free_blocks(inode, ind_block, uspi->s_fpb);
1020 } 1011 }
1021 1012
1022 static void free_branch_tail(struct inode *in 1013 static void free_branch_tail(struct inode *inode, unsigned from, struct ufs_buffer_head *ubh, int depth)
1023 { 1014 {
1024 struct super_block *sb = inode->i_sb; 1015 struct super_block *sb = inode->i_sb;
1025 struct ufs_sb_private_info *uspi = UF 1016 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1026 unsigned i; 1017 unsigned i;
1027 1018
1028 if (--depth) { 1019 if (--depth) {
1029 for (i = from; i < uspi->s_ap 1020 for (i = from; i < uspi->s_apb ; i++) {
1030 void *p = ubh_get_dat 1021 void *p = ubh_get_data_ptr(uspi, ubh, i);
1031 u64 block = ufs_data_ 1022 u64 block = ufs_data_ptr_to_cpu(sb, p);
1032 if (block) { 1023 if (block) {
1033 write_seqlock 1024 write_seqlock(&UFS_I(inode)->meta_lock);
1034 ufs_data_ptr_ 1025 ufs_data_ptr_clear(uspi, p);
1035 write_sequnlo 1026 write_sequnlock(&UFS_I(inode)->meta_lock);
1036 ubh_mark_buff 1027 ubh_mark_buffer_dirty(ubh);
1037 free_full_bra 1028 free_full_branch(inode, block, depth);
1038 } 1029 }
1039 } 1030 }
1040 } else { 1031 } else {
1041 struct to_free ctx = {.inode 1032 struct to_free ctx = {.inode = inode};
1042 1033
1043 for (i = from; i < uspi->s_ap 1034 for (i = from; i < uspi->s_apb; i++) {
1044 void *p = ubh_get_dat 1035 void *p = ubh_get_data_ptr(uspi, ubh, i);
1045 u64 block = ufs_data_ 1036 u64 block = ufs_data_ptr_to_cpu(sb, p);
1046 if (block) { 1037 if (block) {
1047 write_seqlock 1038 write_seqlock(&UFS_I(inode)->meta_lock);
1048 ufs_data_ptr_ 1039 ufs_data_ptr_clear(uspi, p);
1049 write_sequnlo 1040 write_sequnlock(&UFS_I(inode)->meta_lock);
1050 ubh_mark_buff 1041 ubh_mark_buffer_dirty(ubh);
1051 free_data(&ct 1042 free_data(&ctx, block, uspi->s_fpb);
1052 } 1043 }
1053 } 1044 }
1054 free_data(&ctx, 0, 0); 1045 free_data(&ctx, 0, 0);
1055 } 1046 }
1056 if (IS_SYNC(inode) && ubh_buffer_dirt 1047 if (IS_SYNC(inode) && ubh_buffer_dirty(ubh))
1057 ubh_sync_block(ubh); 1048 ubh_sync_block(ubh);
1058 ubh_brelse(ubh); 1049 ubh_brelse(ubh);
1059 } 1050 }
1060 1051
1061 static int ufs_alloc_lastblock(struct inode * 1052 static int ufs_alloc_lastblock(struct inode *inode, loff_t size)
1062 { 1053 {
1063 int err = 0; 1054 int err = 0;
1064 struct super_block *sb = inode->i_sb; 1055 struct super_block *sb = inode->i_sb;
1065 struct address_space *mapping = inode 1056 struct address_space *mapping = inode->i_mapping;
1066 struct ufs_sb_private_info *uspi = UF 1057 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1067 unsigned i, end; 1058 unsigned i, end;
1068 sector_t lastfrag; 1059 sector_t lastfrag;
1069 struct folio *folio; !! 1060 struct page *lastpage;
1070 struct buffer_head *bh; 1061 struct buffer_head *bh;
1071 u64 phys64; 1062 u64 phys64;
1072 1063
1073 lastfrag = (size + uspi->s_fsize - 1) 1064 lastfrag = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
1074 1065
1075 if (!lastfrag) 1066 if (!lastfrag)
1076 goto out; 1067 goto out;
1077 1068
1078 lastfrag--; 1069 lastfrag--;
1079 1070
1080 folio = ufs_get_locked_folio(mapping, !! 1071 lastpage = ufs_get_locked_page(mapping, lastfrag >>
1081 (PAGE_ 1072 (PAGE_SHIFT - inode->i_blkbits));
1082 if (IS_ERR(folio)) { !! 1073 if (IS_ERR(lastpage)) {
1083 err = -EIO; !! 1074 err = -EIO;
1084 goto out; !! 1075 goto out;
1085 } !! 1076 }
>> 1077
>> 1078 end = lastfrag & ((1 << (PAGE_SHIFT - inode->i_blkbits)) - 1);
>> 1079 bh = page_buffers(lastpage);
>> 1080 for (i = 0; i < end; ++i)
>> 1081 bh = bh->b_this_page;
1086 1082
1087 end = lastfrag & ((1 << (PAGE_SHIFT - <<
1088 bh = folio_buffers(folio); <<
1089 for (i = 0; i < end; ++i) <<
1090 bh = bh->b_this_page; <<
1091 1083
1092 err = ufs_getfrag_block(inode, lastfra 1084 err = ufs_getfrag_block(inode, lastfrag, bh, 1);
1093 1085
1094 if (unlikely(err)) 1086 if (unlikely(err))
1095 goto out_unlock; 1087 goto out_unlock;
1096 1088
1097 if (buffer_new(bh)) { 1089 if (buffer_new(bh)) {
1098 clear_buffer_new(bh); 1090 clear_buffer_new(bh);
1099 clean_bdev_bh_alias(bh); 1091 clean_bdev_bh_alias(bh);
1100 /* 1092 /*
1101 * we do not zeroize fragment, 1093 * we do not zeroize fragment, because of
1102 * if it maped to hole, it alr 1094 * if it maped to hole, it already contains zeroes
1103 */ 1095 */
1104 set_buffer_uptodate(bh); 1096 set_buffer_uptodate(bh);
1105 mark_buffer_dirty(bh); 1097 mark_buffer_dirty(bh);
1106 folio_mark_dirty(folio); !! 1098 set_page_dirty(lastpage);
1107 } 1099 }
1108 1100
1109 if (lastfrag >= UFS_IND_FRAGMENT) { 1101 if (lastfrag >= UFS_IND_FRAGMENT) {
1110 end = uspi->s_fpb - ufs_fragnu 1102 end = uspi->s_fpb - ufs_fragnum(lastfrag) - 1;
1111 phys64 = bh->b_blocknr + 1; 1103 phys64 = bh->b_blocknr + 1;
1112 for (i = 0; i < end; ++i) { 1104 for (i = 0; i < end; ++i) {
1113 bh = sb_getblk(sb, i + 1105 bh = sb_getblk(sb, i + phys64);
1114 lock_buffer(bh); 1106 lock_buffer(bh);
1115 memset(bh->b_data, 0, 1107 memset(bh->b_data, 0, sb->s_blocksize);
1116 set_buffer_uptodate(bh 1108 set_buffer_uptodate(bh);
1117 mark_buffer_dirty(bh); 1109 mark_buffer_dirty(bh);
1118 unlock_buffer(bh); 1110 unlock_buffer(bh);
1119 sync_dirty_buffer(bh); 1111 sync_dirty_buffer(bh);
1120 brelse(bh); 1112 brelse(bh);
1121 } 1113 }
1122 } 1114 }
1123 out_unlock: 1115 out_unlock:
1124 ufs_put_locked_folio(folio); !! 1116 ufs_put_locked_page(lastpage);
1125 out: 1117 out:
1126 return err; 1118 return err;
1127 } 1119 }
1128 1120
1129 static void ufs_truncate_blocks(struct inode 1121 static void ufs_truncate_blocks(struct inode *inode)
1130 { 1122 {
1131 struct ufs_inode_info *ufsi = UFS_I(i 1123 struct ufs_inode_info *ufsi = UFS_I(inode);
1132 struct super_block *sb = inode->i_sb; 1124 struct super_block *sb = inode->i_sb;
1133 struct ufs_sb_private_info *uspi = UF 1125 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1134 unsigned offsets[4]; 1126 unsigned offsets[4];
1135 int depth; 1127 int depth;
1136 int depth2; 1128 int depth2;
1137 unsigned i; 1129 unsigned i;
1138 struct ufs_buffer_head *ubh[3]; 1130 struct ufs_buffer_head *ubh[3];
1139 void *p; 1131 void *p;
1140 u64 block; 1132 u64 block;
1141 1133
1142 if (inode->i_size) { 1134 if (inode->i_size) {
1143 sector_t last = (inode->i_siz 1135 sector_t last = (inode->i_size - 1) >> uspi->s_bshift;
1144 depth = ufs_block_to_path(ino 1136 depth = ufs_block_to_path(inode, last, offsets);
1145 if (!depth) 1137 if (!depth)
1146 return; 1138 return;
1147 } else { 1139 } else {
1148 depth = 1; 1140 depth = 1;
1149 } 1141 }
1150 1142
1151 for (depth2 = depth - 1; depth2; dept 1143 for (depth2 = depth - 1; depth2; depth2--)
1152 if (offsets[depth2] != uspi-> 1144 if (offsets[depth2] != uspi->s_apb - 1)
1153 break; 1145 break;
1154 1146
1155 mutex_lock(&ufsi->truncate_mutex); 1147 mutex_lock(&ufsi->truncate_mutex);
1156 if (depth == 1) { 1148 if (depth == 1) {
1157 ufs_trunc_direct(inode); 1149 ufs_trunc_direct(inode);
1158 offsets[0] = UFS_IND_BLOCK; 1150 offsets[0] = UFS_IND_BLOCK;
1159 } else { 1151 } else {
1160 /* get the blocks that should 1152 /* get the blocks that should be partially emptied */
1161 p = ufs_get_direct_data_ptr(u 1153 p = ufs_get_direct_data_ptr(uspi, ufsi, offsets[0]++);
1162 for (i = 0; i < depth2; i++) 1154 for (i = 0; i < depth2; i++) {
1163 block = ufs_data_ptr_ 1155 block = ufs_data_ptr_to_cpu(sb, p);
1164 if (!block) 1156 if (!block)
1165 break; 1157 break;
1166 ubh[i] = ubh_bread(sb 1158 ubh[i] = ubh_bread(sb, block, uspi->s_bsize);
1167 if (!ubh[i]) { 1159 if (!ubh[i]) {
1168 write_seqlock 1160 write_seqlock(&ufsi->meta_lock);
1169 ufs_data_ptr_ 1161 ufs_data_ptr_clear(uspi, p);
1170 write_sequnlo 1162 write_sequnlock(&ufsi->meta_lock);
1171 break; 1163 break;
1172 } 1164 }
1173 p = ubh_get_data_ptr( 1165 p = ubh_get_data_ptr(uspi, ubh[i], offsets[i + 1]++);
1174 } 1166 }
1175 while (i--) 1167 while (i--)
1176 free_branch_tail(inod 1168 free_branch_tail(inode, offsets[i + 1], ubh[i], depth - i - 1);
1177 } 1169 }
1178 for (i = offsets[0]; i <= UFS_TIND_BL 1170 for (i = offsets[0]; i <= UFS_TIND_BLOCK; i++) {
1179 p = ufs_get_direct_data_ptr(u 1171 p = ufs_get_direct_data_ptr(uspi, ufsi, i);
1180 block = ufs_data_ptr_to_cpu(s 1172 block = ufs_data_ptr_to_cpu(sb, p);
1181 if (block) { 1173 if (block) {
1182 write_seqlock(&ufsi-> 1174 write_seqlock(&ufsi->meta_lock);
1183 ufs_data_ptr_clear(us 1175 ufs_data_ptr_clear(uspi, p);
1184 write_sequnlock(&ufsi 1176 write_sequnlock(&ufsi->meta_lock);
1185 free_full_branch(inod 1177 free_full_branch(inode, block, i - UFS_IND_BLOCK + 1);
1186 } 1178 }
1187 } 1179 }
1188 read_seqlock_excl(&ufsi->meta_lock); 1180 read_seqlock_excl(&ufsi->meta_lock);
1189 ufsi->i_lastfrag = DIRECT_FRAGMENT; 1181 ufsi->i_lastfrag = DIRECT_FRAGMENT;
1190 read_sequnlock_excl(&ufsi->meta_lock) 1182 read_sequnlock_excl(&ufsi->meta_lock);
1191 mark_inode_dirty(inode); 1183 mark_inode_dirty(inode);
1192 mutex_unlock(&ufsi->truncate_mutex); 1184 mutex_unlock(&ufsi->truncate_mutex);
1193 } 1185 }
1194 1186
1195 static int ufs_truncate(struct inode *inode, 1187 static int ufs_truncate(struct inode *inode, loff_t size)
1196 { 1188 {
1197 int err = 0; 1189 int err = 0;
1198 1190
1199 UFSD("ENTER: ino %lu, i_size: %llu, o 1191 UFSD("ENTER: ino %lu, i_size: %llu, old_i_size: %llu\n",
1200 inode->i_ino, (unsigned long lon 1192 inode->i_ino, (unsigned long long)size,
1201 (unsigned long long)i_size_read( 1193 (unsigned long long)i_size_read(inode));
1202 1194
1203 if (!(S_ISREG(inode->i_mode) || S_ISD 1195 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
1204 S_ISLNK(inode->i_mode))) 1196 S_ISLNK(inode->i_mode)))
1205 return -EINVAL; 1197 return -EINVAL;
1206 if (IS_APPEND(inode) || IS_IMMUTABLE( 1198 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
1207 return -EPERM; 1199 return -EPERM;
1208 1200
1209 err = ufs_alloc_lastblock(inode, size 1201 err = ufs_alloc_lastblock(inode, size);
1210 1202
1211 if (err) 1203 if (err)
1212 goto out; 1204 goto out;
1213 1205
1214 block_truncate_page(inode->i_mapping, 1206 block_truncate_page(inode->i_mapping, size, ufs_getfrag_block);
1215 1207
1216 truncate_setsize(inode, size); 1208 truncate_setsize(inode, size);
1217 1209
1218 ufs_truncate_blocks(inode); 1210 ufs_truncate_blocks(inode);
1219 inode_set_mtime_to_ts(inode, inode_se !! 1211 inode->i_mtime = inode_set_ctime_current(inode);
1220 mark_inode_dirty(inode); 1212 mark_inode_dirty(inode);
1221 out: 1213 out:
1222 UFSD("EXIT: err %d\n", err); 1214 UFSD("EXIT: err %d\n", err);
1223 return err; 1215 return err;
1224 } 1216 }
1225 1217
1226 int ufs_setattr(struct mnt_idmap *idmap, stru 1218 int ufs_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
1227 struct iattr *attr) 1219 struct iattr *attr)
1228 { 1220 {
1229 struct inode *inode = d_inode(dentry) 1221 struct inode *inode = d_inode(dentry);
1230 unsigned int ia_valid = attr->ia_vali 1222 unsigned int ia_valid = attr->ia_valid;
1231 int error; 1223 int error;
1232 1224
1233 error = setattr_prepare(&nop_mnt_idma 1225 error = setattr_prepare(&nop_mnt_idmap, dentry, attr);
1234 if (error) 1226 if (error)
1235 return error; 1227 return error;
1236 1228
1237 if (ia_valid & ATTR_SIZE && attr->ia_ 1229 if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
1238 error = ufs_truncate(inode, a 1230 error = ufs_truncate(inode, attr->ia_size);
1239 if (error) 1231 if (error)
1240 return error; 1232 return error;
1241 } 1233 }
1242 1234
1243 setattr_copy(&nop_mnt_idmap, inode, a 1235 setattr_copy(&nop_mnt_idmap, inode, attr);
1244 mark_inode_dirty(inode); 1236 mark_inode_dirty(inode);
1245 return 0; 1237 return 0;
1246 } 1238 }
1247 1239
1248 const struct inode_operations ufs_file_inode_ 1240 const struct inode_operations ufs_file_inode_operations = {
1249 .setattr = ufs_setattr, 1241 .setattr = ufs_setattr,
1250 }; 1242 };
1251 1243
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