1 // SPDX-License-Identifier: GPL-2.0 <<
2 /* 1 /*
3 * linux/fs/ufs/inode.c 2 * linux/fs/ufs/inode.c
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 * from 8 * from
10 * 9 *
11 * linux/fs/ext2/inode.c 10 * linux/fs/ext2/inode.c
12 * 11 *
13 * Copyright (C) 1992, 1993, 1994, 1995 12 * Copyright (C) 1992, 1993, 1994, 1995
14 * Remy Card (card@masi.ibp.fr) 13 * Remy Card (card@masi.ibp.fr)
15 * Laboratoire MASI - Institut Blaise Pascal 14 * Laboratoire MASI - Institut Blaise Pascal
16 * Universite Pierre et Marie Curie (Paris VI) 15 * Universite Pierre et Marie Curie (Paris VI)
17 * 16 *
18 * from 17 * from
19 * 18 *
20 * linux/fs/minix/inode.c 19 * linux/fs/minix/inode.c
21 * 20 *
22 * Copyright (C) 1991, 1992 Linus Torvalds 21 * Copyright (C) 1991, 1992 Linus Torvalds
23 * 22 *
24 * Goal-directed block allocation by Stephen 23 * Goal-directed block allocation by Stephen Tweedie (sct@dcs.ed.ac.uk), 1993
25 * Big-endian to little-endian byte-swapping/ 24 * Big-endian to little-endian byte-swapping/bitmaps by
26 * David S. Miller (davem@caip.rutgers. 25 * David S. Miller (davem@caip.rutgers.edu), 1995
27 */ 26 */
28 27
29 #include <linux/uaccess.h> 28 #include <linux/uaccess.h>
30 29
31 #include <linux/errno.h> 30 #include <linux/errno.h>
32 #include <linux/fs.h> 31 #include <linux/fs.h>
33 #include <linux/time.h> 32 #include <linux/time.h>
34 #include <linux/stat.h> 33 #include <linux/stat.h>
35 #include <linux/string.h> 34 #include <linux/string.h>
36 #include <linux/mm.h> 35 #include <linux/mm.h>
37 #include <linux/buffer_head.h> 36 #include <linux/buffer_head.h>
38 #include <linux/mpage.h> <<
39 #include <linux/writeback.h> 37 #include <linux/writeback.h>
40 #include <linux/iversion.h> <<
41 38
42 #include "ufs_fs.h" 39 #include "ufs_fs.h"
43 #include "ufs.h" 40 #include "ufs.h"
44 #include "swab.h" 41 #include "swab.h"
45 #include "util.h" 42 #include "util.h"
46 43
47 static int ufs_block_to_path(struct inode *ino 44 static int ufs_block_to_path(struct inode *inode, sector_t i_block, unsigned offsets[4])
48 { 45 {
49 struct ufs_sb_private_info *uspi = UFS 46 struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;
50 int ptrs = uspi->s_apb; 47 int ptrs = uspi->s_apb;
51 int ptrs_bits = uspi->s_apbshift; 48 int ptrs_bits = uspi->s_apbshift;
52 const long direct_blocks = UFS_NDADDR, 49 const long direct_blocks = UFS_NDADDR,
53 indirect_blocks = ptrs, 50 indirect_blocks = ptrs,
54 double_blocks = (1 << (ptrs_bi 51 double_blocks = (1 << (ptrs_bits * 2));
55 int n = 0; 52 int n = 0;
56 53
57 54
58 UFSD("ptrs=uspi->s_apb = %d,double_blo 55 UFSD("ptrs=uspi->s_apb = %d,double_blocks=%ld \n",ptrs,double_blocks);
59 if (i_block < direct_blocks) { 56 if (i_block < direct_blocks) {
60 offsets[n++] = i_block; 57 offsets[n++] = i_block;
61 } else if ((i_block -= direct_blocks) 58 } else if ((i_block -= direct_blocks) < indirect_blocks) {
62 offsets[n++] = UFS_IND_BLOCK; 59 offsets[n++] = UFS_IND_BLOCK;
63 offsets[n++] = i_block; 60 offsets[n++] = i_block;
64 } else if ((i_block -= indirect_blocks 61 } else if ((i_block -= indirect_blocks) < double_blocks) {
65 offsets[n++] = UFS_DIND_BLOCK; 62 offsets[n++] = UFS_DIND_BLOCK;
66 offsets[n++] = i_block >> ptrs 63 offsets[n++] = i_block >> ptrs_bits;
67 offsets[n++] = i_block & (ptrs 64 offsets[n++] = i_block & (ptrs - 1);
68 } else if (((i_block -= double_blocks) 65 } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
69 offsets[n++] = UFS_TIND_BLOCK; 66 offsets[n++] = UFS_TIND_BLOCK;
70 offsets[n++] = i_block >> (ptr 67 offsets[n++] = i_block >> (ptrs_bits * 2);
71 offsets[n++] = (i_block >> ptr 68 offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
72 offsets[n++] = i_block & (ptrs 69 offsets[n++] = i_block & (ptrs - 1);
73 } else { 70 } else {
74 ufs_warning(inode->i_sb, "ufs_ 71 ufs_warning(inode->i_sb, "ufs_block_to_path", "block > big");
75 } 72 }
76 return n; 73 return n;
77 } 74 }
78 75
79 typedef struct { 76 typedef struct {
80 void *p; 77 void *p;
81 union { 78 union {
82 __fs32 key32; 79 __fs32 key32;
83 __fs64 key64; 80 __fs64 key64;
84 }; 81 };
85 struct buffer_head *bh; 82 struct buffer_head *bh;
86 } Indirect; 83 } Indirect;
87 84
88 static inline int grow_chain32(struct ufs_inod 85 static inline int grow_chain32(struct ufs_inode_info *ufsi,
89 struct buffer_h 86 struct buffer_head *bh, __fs32 *v,
90 Indirect *from, 87 Indirect *from, Indirect *to)
91 { 88 {
92 Indirect *p; 89 Indirect *p;
93 unsigned seq; 90 unsigned seq;
94 to->bh = bh; 91 to->bh = bh;
95 do { 92 do {
96 seq = read_seqbegin(&ufsi->met 93 seq = read_seqbegin(&ufsi->meta_lock);
97 to->key32 = *(__fs32 *)(to->p 94 to->key32 = *(__fs32 *)(to->p = v);
98 for (p = from; p <= to && p->k 95 for (p = from; p <= to && p->key32 == *(__fs32 *)p->p; p++)
99 ; 96 ;
100 } while (read_seqretry(&ufsi->meta_loc 97 } while (read_seqretry(&ufsi->meta_lock, seq));
101 return (p > to); 98 return (p > to);
102 } 99 }
103 100
104 static inline int grow_chain64(struct ufs_inod 101 static inline int grow_chain64(struct ufs_inode_info *ufsi,
105 struct buffer_h 102 struct buffer_head *bh, __fs64 *v,
106 Indirect *from, 103 Indirect *from, Indirect *to)
107 { 104 {
108 Indirect *p; 105 Indirect *p;
109 unsigned seq; 106 unsigned seq;
110 to->bh = bh; 107 to->bh = bh;
111 do { 108 do {
112 seq = read_seqbegin(&ufsi->met 109 seq = read_seqbegin(&ufsi->meta_lock);
113 to->key64 = *(__fs64 *)(to->p 110 to->key64 = *(__fs64 *)(to->p = v);
114 for (p = from; p <= to && p->k 111 for (p = from; p <= to && p->key64 == *(__fs64 *)p->p; p++)
115 ; 112 ;
116 } while (read_seqretry(&ufsi->meta_loc 113 } while (read_seqretry(&ufsi->meta_lock, seq));
117 return (p > to); 114 return (p > to);
118 } 115 }
119 116
120 /* 117 /*
121 * Returns the location of the fragment from 118 * Returns the location of the fragment from
122 * the beginning of the filesystem. 119 * the beginning of the filesystem.
123 */ 120 */
124 121
125 static u64 ufs_frag_map(struct inode *inode, u 122 static u64 ufs_frag_map(struct inode *inode, unsigned offsets[4], int depth)
126 { 123 {
127 struct ufs_inode_info *ufsi = UFS_I(in 124 struct ufs_inode_info *ufsi = UFS_I(inode);
128 struct super_block *sb = inode->i_sb; 125 struct super_block *sb = inode->i_sb;
129 struct ufs_sb_private_info *uspi = UFS 126 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
130 u64 mask = (u64) uspi->s_apbmask>>uspi 127 u64 mask = (u64) uspi->s_apbmask>>uspi->s_fpbshift;
131 int shift = uspi->s_apbshift-uspi->s_f 128 int shift = uspi->s_apbshift-uspi->s_fpbshift;
132 Indirect chain[4], *q = chain; 129 Indirect chain[4], *q = chain;
133 unsigned *p; 130 unsigned *p;
134 unsigned flags = UFS_SB(sb)->s_flags; 131 unsigned flags = UFS_SB(sb)->s_flags;
135 u64 res = 0; 132 u64 res = 0;
136 133
137 UFSD(": uspi->s_fpbshift = %d ,uspi->s 134 UFSD(": uspi->s_fpbshift = %d ,uspi->s_apbmask = %x, mask=%llx\n",
138 uspi->s_fpbshift, uspi->s_apbm 135 uspi->s_fpbshift, uspi->s_apbmask,
139 (unsigned long long)mask); 136 (unsigned long long)mask);
140 137
141 if (depth == 0) 138 if (depth == 0)
142 goto no_block; 139 goto no_block;
143 140
144 again: 141 again:
145 p = offsets; 142 p = offsets;
146 143
147 if ((flags & UFS_TYPE_MASK) == UFS_TYP 144 if ((flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
148 goto ufs2; 145 goto ufs2;
149 146
150 if (!grow_chain32(ufsi, NULL, &ufsi->i 147 if (!grow_chain32(ufsi, NULL, &ufsi->i_u1.i_data[*p++], chain, q))
151 goto changed; 148 goto changed;
152 if (!q->key32) 149 if (!q->key32)
153 goto no_block; 150 goto no_block;
154 while (--depth) { 151 while (--depth) {
155 __fs32 *ptr; 152 __fs32 *ptr;
156 struct buffer_head *bh; 153 struct buffer_head *bh;
157 unsigned n = *p++; 154 unsigned n = *p++;
158 155
159 bh = sb_bread(sb, uspi->s_sbba 156 bh = sb_bread(sb, uspi->s_sbbase +
160 fs32_to_cpu( 157 fs32_to_cpu(sb, q->key32) + (n>>shift));
161 if (!bh) 158 if (!bh)
162 goto no_block; 159 goto no_block;
163 ptr = (__fs32 *)bh->b_data + ( 160 ptr = (__fs32 *)bh->b_data + (n & mask);
164 if (!grow_chain32(ufsi, bh, pt 161 if (!grow_chain32(ufsi, bh, ptr, chain, ++q))
165 goto changed; 162 goto changed;
166 if (!q->key32) 163 if (!q->key32)
167 goto no_block; 164 goto no_block;
168 } 165 }
169 res = fs32_to_cpu(sb, q->key32); 166 res = fs32_to_cpu(sb, q->key32);
170 goto found; 167 goto found;
171 168
172 ufs2: 169 ufs2:
173 if (!grow_chain64(ufsi, NULL, &ufsi->i 170 if (!grow_chain64(ufsi, NULL, &ufsi->i_u1.u2_i_data[*p++], chain, q))
174 goto changed; 171 goto changed;
175 if (!q->key64) 172 if (!q->key64)
176 goto no_block; 173 goto no_block;
177 174
178 while (--depth) { 175 while (--depth) {
179 __fs64 *ptr; 176 __fs64 *ptr;
180 struct buffer_head *bh; 177 struct buffer_head *bh;
181 unsigned n = *p++; 178 unsigned n = *p++;
182 179
183 bh = sb_bread(sb, uspi->s_sbba 180 bh = sb_bread(sb, uspi->s_sbbase +
184 fs64_to_cpu( 181 fs64_to_cpu(sb, q->key64) + (n>>shift));
185 if (!bh) 182 if (!bh)
186 goto no_block; 183 goto no_block;
187 ptr = (__fs64 *)bh->b_data + ( 184 ptr = (__fs64 *)bh->b_data + (n & mask);
188 if (!grow_chain64(ufsi, bh, pt 185 if (!grow_chain64(ufsi, bh, ptr, chain, ++q))
189 goto changed; 186 goto changed;
190 if (!q->key64) 187 if (!q->key64)
191 goto no_block; 188 goto no_block;
192 } 189 }
193 res = fs64_to_cpu(sb, q->key64); 190 res = fs64_to_cpu(sb, q->key64);
194 found: 191 found:
195 res += uspi->s_sbbase; 192 res += uspi->s_sbbase;
196 no_block: 193 no_block:
197 while (q > chain) { 194 while (q > chain) {
198 brelse(q->bh); 195 brelse(q->bh);
199 q--; 196 q--;
200 } 197 }
201 return res; 198 return res;
202 199
203 changed: 200 changed:
204 while (q > chain) { 201 while (q > chain) {
205 brelse(q->bh); 202 brelse(q->bh);
206 q--; 203 q--;
207 } 204 }
208 goto again; 205 goto again;
209 } 206 }
210 207
211 /* 208 /*
212 * Unpacking tails: we have a file with partia 209 * Unpacking tails: we have a file with partial final block and
213 * we had been asked to extend it. If the fra 210 * we had been asked to extend it. If the fragment being written
214 * is within the same block, we need to extend 211 * is within the same block, we need to extend the tail just to cover
215 * that fragment. Otherwise the tail is exten 212 * that fragment. Otherwise the tail is extended to full block.
216 * 213 *
217 * Note that we might need to create a _new_ t 214 * Note that we might need to create a _new_ tail, but that will
218 * be handled elsewhere; this is strictly for 215 * be handled elsewhere; this is strictly for resizing old
219 * ones. 216 * ones.
220 */ 217 */
221 static bool 218 static bool
222 ufs_extend_tail(struct inode *inode, u64 write 219 ufs_extend_tail(struct inode *inode, u64 writes_to,
223 int *err, struct page *locke 220 int *err, struct page *locked_page)
224 { 221 {
225 struct ufs_inode_info *ufsi = UFS_I(in 222 struct ufs_inode_info *ufsi = UFS_I(inode);
226 struct super_block *sb = inode->i_sb; 223 struct super_block *sb = inode->i_sb;
227 struct ufs_sb_private_info *uspi = UFS 224 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
228 unsigned lastfrag = ufsi->i_lastfrag; 225 unsigned lastfrag = ufsi->i_lastfrag; /* it's a short file, so unsigned is enough */
229 unsigned block = ufs_fragstoblks(lastf 226 unsigned block = ufs_fragstoblks(lastfrag);
230 unsigned new_size; 227 unsigned new_size;
231 void *p; 228 void *p;
232 u64 tmp; 229 u64 tmp;
233 230
234 if (writes_to < (lastfrag | uspi->s_fp 231 if (writes_to < (lastfrag | uspi->s_fpbmask))
235 new_size = (writes_to & uspi-> 232 new_size = (writes_to & uspi->s_fpbmask) + 1;
236 else 233 else
237 new_size = uspi->s_fpb; 234 new_size = uspi->s_fpb;
238 235
239 p = ufs_get_direct_data_ptr(uspi, ufsi 236 p = ufs_get_direct_data_ptr(uspi, ufsi, block);
240 tmp = ufs_new_fragments(inode, p, last 237 tmp = ufs_new_fragments(inode, p, lastfrag, ufs_data_ptr_to_cpu(sb, p),
241 new_size - (la !! 238 new_size, err, locked_page);
242 locked_page); <<
243 return tmp != 0; 239 return tmp != 0;
244 } 240 }
245 241
246 /** 242 /**
247 * ufs_inode_getfrag() - allocate new fragment 243 * ufs_inode_getfrag() - allocate new fragment(s)
248 * @inode: pointer to inode 244 * @inode: pointer to inode
249 * @index: number of block pointer within the 245 * @index: number of block pointer within the inode's array.
250 * @new_fragment: number of new allocated frag 246 * @new_fragment: number of new allocated fragment(s)
251 * @err: we set it if something wrong 247 * @err: we set it if something wrong
252 * @new: we set it if we allocate new block 248 * @new: we set it if we allocate new block
253 * @locked_page: for ufs_new_fragments() 249 * @locked_page: for ufs_new_fragments()
254 */ 250 */
255 static u64 251 static u64
256 ufs_inode_getfrag(struct inode *inode, unsigne 252 ufs_inode_getfrag(struct inode *inode, unsigned index,
257 sector_t new_fragment, int * 253 sector_t new_fragment, int *err,
258 int *new, struct page *locke 254 int *new, struct page *locked_page)
259 { 255 {
260 struct ufs_inode_info *ufsi = UFS_I(in 256 struct ufs_inode_info *ufsi = UFS_I(inode);
261 struct super_block *sb = inode->i_sb; 257 struct super_block *sb = inode->i_sb;
262 struct ufs_sb_private_info *uspi = UFS 258 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
263 u64 tmp, goal, lastfrag; 259 u64 tmp, goal, lastfrag;
264 unsigned nfrags = uspi->s_fpb; 260 unsigned nfrags = uspi->s_fpb;
265 void *p; 261 void *p;
266 262
267 /* TODO : to be done for write support 263 /* TODO : to be done for write support
268 if ( (flags & UFS_TYPE_MASK) == UFS_TY 264 if ( (flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2)
269 goto ufs2; 265 goto ufs2;
270 */ 266 */
271 267
272 p = ufs_get_direct_data_ptr(uspi, ufsi 268 p = ufs_get_direct_data_ptr(uspi, ufsi, index);
273 tmp = ufs_data_ptr_to_cpu(sb, p); 269 tmp = ufs_data_ptr_to_cpu(sb, p);
274 if (tmp) 270 if (tmp)
275 goto out; 271 goto out;
276 272
277 lastfrag = ufsi->i_lastfrag; 273 lastfrag = ufsi->i_lastfrag;
278 274
279 /* will that be a new tail? */ 275 /* will that be a new tail? */
280 if (new_fragment < UFS_NDIR_FRAGMENT & 276 if (new_fragment < UFS_NDIR_FRAGMENT && new_fragment >= lastfrag)
281 nfrags = (new_fragment & uspi- 277 nfrags = (new_fragment & uspi->s_fpbmask) + 1;
282 278
283 goal = 0; 279 goal = 0;
284 if (index) { 280 if (index) {
285 goal = ufs_data_ptr_to_cpu(sb, 281 goal = ufs_data_ptr_to_cpu(sb,
286 ufs_get_direc 282 ufs_get_direct_data_ptr(uspi, ufsi, index - 1));
287 if (goal) 283 if (goal)
288 goal += uspi->s_fpb; 284 goal += uspi->s_fpb;
289 } 285 }
290 tmp = ufs_new_fragments(inode, p, ufs_ 286 tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment),
291 goal, nfrags, !! 287 goal, uspi->s_fpb, err, locked_page);
292 288
293 if (!tmp) { 289 if (!tmp) {
294 *err = -ENOSPC; 290 *err = -ENOSPC;
295 return 0; 291 return 0;
296 } 292 }
297 293
298 if (new) 294 if (new)
299 *new = 1; 295 *new = 1;
300 inode_set_ctime_current(inode); !! 296 inode->i_ctime = current_time(inode);
301 if (IS_SYNC(inode)) 297 if (IS_SYNC(inode))
302 ufs_sync_inode (inode); 298 ufs_sync_inode (inode);
303 mark_inode_dirty(inode); 299 mark_inode_dirty(inode);
304 out: 300 out:
305 return tmp + uspi->s_sbbase; 301 return tmp + uspi->s_sbbase;
306 302
307 /* This part : To be implemented .... 303 /* This part : To be implemented ....
308 Required only for writing, not require 304 Required only for writing, not required for READ-ONLY.
309 ufs2: 305 ufs2:
310 306
311 u2_block = ufs_fragstoblks(fragment); 307 u2_block = ufs_fragstoblks(fragment);
312 u2_blockoff = ufs_fragnum(fragment); 308 u2_blockoff = ufs_fragnum(fragment);
313 p = ufsi->i_u1.u2_i_data + block; 309 p = ufsi->i_u1.u2_i_data + block;
314 goal = 0; 310 goal = 0;
315 311
316 repeat2: 312 repeat2:
317 tmp = fs32_to_cpu(sb, *p); 313 tmp = fs32_to_cpu(sb, *p);
318 lastfrag = ufsi->i_lastfrag; 314 lastfrag = ufsi->i_lastfrag;
319 315
320 */ 316 */
321 } 317 }
322 318
323 /** 319 /**
324 * ufs_inode_getblock() - allocate new block 320 * ufs_inode_getblock() - allocate new block
325 * @inode: pointer to inode 321 * @inode: pointer to inode
326 * @ind_block: block number of the indirect bl 322 * @ind_block: block number of the indirect block
327 * @index: number of pointer within the indire 323 * @index: number of pointer within the indirect block
328 * @new_fragment: number of new allocated frag 324 * @new_fragment: number of new allocated fragment
329 * (block will hold this fragment and also us 325 * (block will hold this fragment and also uspi->s_fpb-1)
330 * @err: see ufs_inode_getfrag() 326 * @err: see ufs_inode_getfrag()
331 * @new: see ufs_inode_getfrag() 327 * @new: see ufs_inode_getfrag()
332 * @locked_page: see ufs_inode_getfrag() 328 * @locked_page: see ufs_inode_getfrag()
333 */ 329 */
334 static u64 330 static u64
335 ufs_inode_getblock(struct inode *inode, u64 in 331 ufs_inode_getblock(struct inode *inode, u64 ind_block,
336 unsigned index, sector_t new 332 unsigned index, sector_t new_fragment, int *err,
337 int *new, struct page *locke 333 int *new, struct page *locked_page)
338 { 334 {
339 struct super_block *sb = inode->i_sb; 335 struct super_block *sb = inode->i_sb;
340 struct ufs_sb_private_info *uspi = UFS 336 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
341 int shift = uspi->s_apbshift - uspi->s 337 int shift = uspi->s_apbshift - uspi->s_fpbshift;
342 u64 tmp = 0, goal; 338 u64 tmp = 0, goal;
343 struct buffer_head *bh; 339 struct buffer_head *bh;
344 void *p; 340 void *p;
345 341
346 if (!ind_block) 342 if (!ind_block)
347 return 0; 343 return 0;
348 344
349 bh = sb_bread(sb, ind_block + (index > 345 bh = sb_bread(sb, ind_block + (index >> shift));
350 if (unlikely(!bh)) { 346 if (unlikely(!bh)) {
351 *err = -EIO; 347 *err = -EIO;
352 return 0; 348 return 0;
353 } 349 }
354 350
355 index &= uspi->s_apbmask >> uspi->s_fp 351 index &= uspi->s_apbmask >> uspi->s_fpbshift;
356 if (uspi->fs_magic == UFS2_MAGIC) 352 if (uspi->fs_magic == UFS2_MAGIC)
357 p = (__fs64 *)bh->b_data + ind 353 p = (__fs64 *)bh->b_data + index;
358 else 354 else
359 p = (__fs32 *)bh->b_data + ind 355 p = (__fs32 *)bh->b_data + index;
360 356
361 tmp = ufs_data_ptr_to_cpu(sb, p); 357 tmp = ufs_data_ptr_to_cpu(sb, p);
362 if (tmp) 358 if (tmp)
363 goto out; 359 goto out;
364 360
365 if (index && (uspi->fs_magic == UFS2_M 361 if (index && (uspi->fs_magic == UFS2_MAGIC ?
366 (tmp = fs64_to_cpu(sb, ( 362 (tmp = fs64_to_cpu(sb, ((__fs64 *)bh->b_data)[index-1])) :
367 (tmp = fs32_to_cpu(sb, ( 363 (tmp = fs32_to_cpu(sb, ((__fs32 *)bh->b_data)[index-1]))))
368 goal = tmp + uspi->s_fpb; 364 goal = tmp + uspi->s_fpb;
369 else 365 else
370 goal = bh->b_blocknr + uspi->s 366 goal = bh->b_blocknr + uspi->s_fpb;
371 tmp = ufs_new_fragments(inode, p, ufs_ 367 tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,
372 uspi->s_fpb, e 368 uspi->s_fpb, err, locked_page);
373 if (!tmp) 369 if (!tmp)
374 goto out; 370 goto out;
375 371
376 if (new) 372 if (new)
377 *new = 1; 373 *new = 1;
378 374
379 mark_buffer_dirty(bh); 375 mark_buffer_dirty(bh);
380 if (IS_SYNC(inode)) 376 if (IS_SYNC(inode))
381 sync_dirty_buffer(bh); 377 sync_dirty_buffer(bh);
382 inode_set_ctime_current(inode); !! 378 inode->i_ctime = current_time(inode);
383 mark_inode_dirty(inode); 379 mark_inode_dirty(inode);
384 out: 380 out:
385 brelse (bh); 381 brelse (bh);
386 UFSD("EXIT\n"); 382 UFSD("EXIT\n");
387 if (tmp) 383 if (tmp)
388 tmp += uspi->s_sbbase; 384 tmp += uspi->s_sbbase;
389 return tmp; 385 return tmp;
390 } 386 }
391 387
392 /** 388 /**
393 * ufs_getfrag_block() - `get_block_t' functio 389 * ufs_getfrag_block() - `get_block_t' function, interface between UFS and
394 * read_folio, writepages and so on !! 390 * readpage, writepage and so on
395 */ 391 */
396 392
397 static int ufs_getfrag_block(struct inode *ino 393 static int ufs_getfrag_block(struct inode *inode, sector_t fragment, struct buffer_head *bh_result, int create)
398 { 394 {
399 struct super_block *sb = inode->i_sb; 395 struct super_block *sb = inode->i_sb;
400 struct ufs_sb_private_info *uspi = UFS 396 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
401 int err = 0, new = 0; 397 int err = 0, new = 0;
402 unsigned offsets[4]; 398 unsigned offsets[4];
403 int depth = ufs_block_to_path(inode, f 399 int depth = ufs_block_to_path(inode, fragment >> uspi->s_fpbshift, offsets);
404 u64 phys64 = 0; 400 u64 phys64 = 0;
405 unsigned frag = fragment & uspi->s_fpb 401 unsigned frag = fragment & uspi->s_fpbmask;
406 402
407 phys64 = ufs_frag_map(inode, offsets, !! 403 if (!create) {
408 if (!create) !! 404 phys64 = ufs_frag_map(inode, offsets, depth);
409 goto done; !! 405 goto out;
410 <<
411 if (phys64) { <<
412 if (fragment >= UFS_NDIR_FRAGM <<
413 goto done; <<
414 read_seqlock_excl(&UFS_I(inode <<
415 if (fragment < UFS_I(inode)->i <<
416 read_sequnlock_excl(&U <<
417 goto done; <<
418 } <<
419 read_sequnlock_excl(&UFS_I(ino <<
420 } 406 }
>> 407
421 /* This code entered only while writin 408 /* This code entered only while writing ....? */
422 409
423 mutex_lock(&UFS_I(inode)->truncate_mut 410 mutex_lock(&UFS_I(inode)->truncate_mutex);
424 411
425 UFSD("ENTER, ino %lu, fragment %llu\n" 412 UFSD("ENTER, ino %lu, fragment %llu\n", inode->i_ino, (unsigned long long)fragment);
426 if (unlikely(!depth)) { 413 if (unlikely(!depth)) {
427 ufs_warning(sb, "ufs_get_block 414 ufs_warning(sb, "ufs_get_block", "block > big");
428 err = -EIO; 415 err = -EIO;
429 goto out; 416 goto out;
430 } 417 }
431 418
432 if (UFS_I(inode)->i_lastfrag < UFS_NDI 419 if (UFS_I(inode)->i_lastfrag < UFS_NDIR_FRAGMENT) {
433 unsigned lastfrag = UFS_I(inod 420 unsigned lastfrag = UFS_I(inode)->i_lastfrag;
434 unsigned tailfrags = lastfrag 421 unsigned tailfrags = lastfrag & uspi->s_fpbmask;
435 if (tailfrags && fragment >= l 422 if (tailfrags && fragment >= lastfrag) {
436 if (!ufs_extend_tail(i 423 if (!ufs_extend_tail(inode, fragment,
437 & 424 &err, bh_result->b_page))
438 goto out; 425 goto out;
439 } 426 }
440 } 427 }
441 428
442 if (depth == 1) { 429 if (depth == 1) {
443 phys64 = ufs_inode_getfrag(ino 430 phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,
444 &er 431 &err, &new, bh_result->b_page);
445 } else { 432 } else {
446 int i; 433 int i;
447 phys64 = ufs_inode_getfrag(ino 434 phys64 = ufs_inode_getfrag(inode, offsets[0], fragment,
448 &er 435 &err, NULL, NULL);
449 for (i = 1; i < depth - 1; i++ 436 for (i = 1; i < depth - 1; i++)
450 phys64 = ufs_inode_get 437 phys64 = ufs_inode_getblock(inode, phys64, offsets[i],
451 438 fragment, &err, NULL, NULL);
452 phys64 = ufs_inode_getblock(in 439 phys64 = ufs_inode_getblock(inode, phys64, offsets[depth - 1],
453 fragme 440 fragment, &err, &new, bh_result->b_page);
454 } 441 }
455 out: 442 out:
456 if (phys64) { 443 if (phys64) {
457 phys64 += frag; 444 phys64 += frag;
458 map_bh(bh_result, sb, phys64); 445 map_bh(bh_result, sb, phys64);
459 if (new) 446 if (new)
460 set_buffer_new(bh_resu 447 set_buffer_new(bh_result);
461 } 448 }
462 mutex_unlock(&UFS_I(inode)->truncate_m 449 mutex_unlock(&UFS_I(inode)->truncate_mutex);
463 return err; 450 return err;
464 <<
465 done: <<
466 if (phys64) <<
467 map_bh(bh_result, sb, phys64 + <<
468 return 0; <<
469 } 451 }
470 452
471 static int ufs_writepages(struct address_space !! 453 static int ufs_writepage(struct page *page, struct writeback_control *wbc)
472 struct writeback_control *wbc) <<
473 { 454 {
474 return mpage_writepages(mapping, wbc, !! 455 return block_write_full_page(page,ufs_getfrag_block,wbc);
475 } 456 }
476 457
477 static int ufs_read_folio(struct file *file, s !! 458 static int ufs_readpage(struct file *file, struct page *page)
478 { 459 {
479 return block_read_full_folio(folio, uf !! 460 return block_read_full_page(page,ufs_getfrag_block);
480 } 461 }
481 462
482 int ufs_prepare_chunk(struct page *page, loff_ 463 int ufs_prepare_chunk(struct page *page, loff_t pos, unsigned len)
483 { 464 {
484 return __block_write_begin(page, pos, 465 return __block_write_begin(page, pos, len, ufs_getfrag_block);
485 } 466 }
486 467
487 static void ufs_truncate_blocks(struct inode * 468 static void ufs_truncate_blocks(struct inode *);
488 469
489 static void ufs_write_failed(struct address_sp 470 static void ufs_write_failed(struct address_space *mapping, loff_t to)
490 { 471 {
491 struct inode *inode = mapping->host; 472 struct inode *inode = mapping->host;
492 473
493 if (to > inode->i_size) { 474 if (to > inode->i_size) {
494 truncate_pagecache(inode, inod 475 truncate_pagecache(inode, inode->i_size);
495 ufs_truncate_blocks(inode); 476 ufs_truncate_blocks(inode);
496 } 477 }
497 } 478 }
498 479
499 static int ufs_write_begin(struct file *file, 480 static int ufs_write_begin(struct file *file, struct address_space *mapping,
500 loff_t pos, unsigned l !! 481 loff_t pos, unsigned len, unsigned flags,
501 struct page **pagep, v 482 struct page **pagep, void **fsdata)
502 { 483 {
503 int ret; 484 int ret;
504 485
505 ret = block_write_begin(mapping, pos, !! 486 ret = block_write_begin(mapping, pos, len, flags, pagep,
>> 487 ufs_getfrag_block);
506 if (unlikely(ret)) 488 if (unlikely(ret))
507 ufs_write_failed(mapping, pos 489 ufs_write_failed(mapping, pos + len);
508 490
509 return ret; 491 return ret;
510 } 492 }
511 493
512 static int ufs_write_end(struct file *file, st 494 static int ufs_write_end(struct file *file, struct address_space *mapping,
513 loff_t pos, unsigned l 495 loff_t pos, unsigned len, unsigned copied,
514 struct page *page, voi 496 struct page *page, void *fsdata)
515 { 497 {
516 int ret; 498 int ret;
517 499
518 ret = generic_write_end(file, mapping, 500 ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
519 if (ret < len) 501 if (ret < len)
520 ufs_write_failed(mapping, pos 502 ufs_write_failed(mapping, pos + len);
521 return ret; 503 return ret;
522 } 504 }
523 505
524 static sector_t ufs_bmap(struct address_space 506 static sector_t ufs_bmap(struct address_space *mapping, sector_t block)
525 { 507 {
526 return generic_block_bmap(mapping,bloc 508 return generic_block_bmap(mapping,block,ufs_getfrag_block);
527 } 509 }
528 510
529 const struct address_space_operations ufs_aops 511 const struct address_space_operations ufs_aops = {
530 .dirty_folio = block_dirty_folio, !! 512 .readpage = ufs_readpage,
531 .invalidate_folio = block_invalidate_f !! 513 .writepage = ufs_writepage,
532 .read_folio = ufs_read_folio, <<
533 .writepages = ufs_writepages, <<
534 .write_begin = ufs_write_begin, 514 .write_begin = ufs_write_begin,
535 .write_end = ufs_write_end, 515 .write_end = ufs_write_end,
536 .migrate_folio = buffer_migrate_folio, <<
537 .bmap = ufs_bmap 516 .bmap = ufs_bmap
538 }; 517 };
539 518
540 static void ufs_set_inode_ops(struct inode *in 519 static void ufs_set_inode_ops(struct inode *inode)
541 { 520 {
542 if (S_ISREG(inode->i_mode)) { 521 if (S_ISREG(inode->i_mode)) {
543 inode->i_op = &ufs_file_inode_ 522 inode->i_op = &ufs_file_inode_operations;
544 inode->i_fop = &ufs_file_opera 523 inode->i_fop = &ufs_file_operations;
545 inode->i_mapping->a_ops = &ufs 524 inode->i_mapping->a_ops = &ufs_aops;
546 } else if (S_ISDIR(inode->i_mode)) { 525 } else if (S_ISDIR(inode->i_mode)) {
547 inode->i_op = &ufs_dir_inode_o 526 inode->i_op = &ufs_dir_inode_operations;
548 inode->i_fop = &ufs_dir_operat 527 inode->i_fop = &ufs_dir_operations;
549 inode->i_mapping->a_ops = &ufs 528 inode->i_mapping->a_ops = &ufs_aops;
550 } else if (S_ISLNK(inode->i_mode)) { 529 } else if (S_ISLNK(inode->i_mode)) {
551 if (!inode->i_blocks) { 530 if (!inode->i_blocks) {
552 inode->i_link = (char 531 inode->i_link = (char *)UFS_I(inode)->i_u1.i_symlink;
553 inode->i_op = &simple_ 532 inode->i_op = &simple_symlink_inode_operations;
554 } else { 533 } else {
555 inode->i_mapping->a_op 534 inode->i_mapping->a_ops = &ufs_aops;
556 inode->i_op = &page_sy 535 inode->i_op = &page_symlink_inode_operations;
557 inode_nohighmem(inode) 536 inode_nohighmem(inode);
558 } 537 }
559 } else 538 } else
560 init_special_inode(inode, inod 539 init_special_inode(inode, inode->i_mode,
561 ufs_get_ino 540 ufs_get_inode_dev(inode->i_sb, UFS_I(inode)));
562 } 541 }
563 542
564 static int ufs1_read_inode(struct inode *inode 543 static int ufs1_read_inode(struct inode *inode, struct ufs_inode *ufs_inode)
565 { 544 {
566 struct ufs_inode_info *ufsi = UFS_I(in 545 struct ufs_inode_info *ufsi = UFS_I(inode);
567 struct super_block *sb = inode->i_sb; 546 struct super_block *sb = inode->i_sb;
568 umode_t mode; 547 umode_t mode;
569 548
570 /* 549 /*
571 * Copy data to the in-core inode. 550 * Copy data to the in-core inode.
572 */ 551 */
573 inode->i_mode = mode = fs16_to_cpu(sb, 552 inode->i_mode = mode = fs16_to_cpu(sb, ufs_inode->ui_mode);
574 set_nlink(inode, fs16_to_cpu(sb, ufs_i 553 set_nlink(inode, fs16_to_cpu(sb, ufs_inode->ui_nlink));
575 if (inode->i_nlink == 0) !! 554 if (inode->i_nlink == 0) {
576 return -ESTALE; !! 555 ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
>> 556 return -1;
>> 557 }
577 558
578 /* 559 /*
579 * Linux now has 32-bit uid and gid, s 560 * Linux now has 32-bit uid and gid, so we can support EFT.
580 */ 561 */
581 i_uid_write(inode, ufs_get_inode_uid(s 562 i_uid_write(inode, ufs_get_inode_uid(sb, ufs_inode));
582 i_gid_write(inode, ufs_get_inode_gid(s 563 i_gid_write(inode, ufs_get_inode_gid(sb, ufs_inode));
583 564
584 inode->i_size = fs64_to_cpu(sb, ufs_in 565 inode->i_size = fs64_to_cpu(sb, ufs_inode->ui_size);
585 inode_set_atime(inode, !! 566 inode->i_atime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_atime.tv_sec);
586 (signed)fs32_to_cpu(sb !! 567 inode->i_ctime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec);
587 0); !! 568 inode->i_mtime.tv_sec = fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec);
588 inode_set_ctime(inode, !! 569 inode->i_mtime.tv_nsec = 0;
589 (signed)fs32_to_cpu(sb !! 570 inode->i_atime.tv_nsec = 0;
590 0); !! 571 inode->i_ctime.tv_nsec = 0;
591 inode_set_mtime(inode, <<
592 (signed)fs32_to_cpu(sb <<
593 0); <<
594 inode->i_blocks = fs32_to_cpu(sb, ufs_ 572 inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
595 inode->i_generation = fs32_to_cpu(sb, 573 inode->i_generation = fs32_to_cpu(sb, ufs_inode->ui_gen);
596 ufsi->i_flags = fs32_to_cpu(sb, ufs_in 574 ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
597 ufsi->i_shadow = fs32_to_cpu(sb, ufs_i 575 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
598 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs 576 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
599 577
600 578
601 if (S_ISCHR(mode) || S_ISBLK(mode) || 579 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
602 memcpy(ufsi->i_u1.i_data, &ufs 580 memcpy(ufsi->i_u1.i_data, &ufs_inode->ui_u2.ui_addr,
603 sizeof(ufs_inode->ui_u2 581 sizeof(ufs_inode->ui_u2.ui_addr));
604 } else { 582 } else {
605 memcpy(ufsi->i_u1.i_symlink, u 583 memcpy(ufsi->i_u1.i_symlink, ufs_inode->ui_u2.ui_symlink,
606 sizeof(ufs_inode->ui_u2 584 sizeof(ufs_inode->ui_u2.ui_symlink) - 1);
607 ufsi->i_u1.i_symlink[sizeof(uf 585 ufsi->i_u1.i_symlink[sizeof(ufs_inode->ui_u2.ui_symlink) - 1] = 0;
608 } 586 }
609 return 0; 587 return 0;
610 } 588 }
611 589
612 static int ufs2_read_inode(struct inode *inode 590 static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
613 { 591 {
614 struct ufs_inode_info *ufsi = UFS_I(in 592 struct ufs_inode_info *ufsi = UFS_I(inode);
615 struct super_block *sb = inode->i_sb; 593 struct super_block *sb = inode->i_sb;
616 umode_t mode; 594 umode_t mode;
617 595
618 UFSD("Reading ufs2 inode, ino %lu\n", 596 UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
619 /* 597 /*
620 * Copy data to the in-core inode. 598 * Copy data to the in-core inode.
621 */ 599 */
622 inode->i_mode = mode = fs16_to_cpu(sb, 600 inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);
623 set_nlink(inode, fs16_to_cpu(sb, ufs2_ 601 set_nlink(inode, fs16_to_cpu(sb, ufs2_inode->ui_nlink));
624 if (inode->i_nlink == 0) !! 602 if (inode->i_nlink == 0) {
625 return -ESTALE; !! 603 ufs_error (sb, "ufs_read_inode", "inode %lu has zero nlink\n", inode->i_ino);
>> 604 return -1;
>> 605 }
626 606
627 /* 607 /*
628 * Linux now has 32-bit uid and gid, s 608 * Linux now has 32-bit uid and gid, so we can support EFT.
629 */ 609 */
630 i_uid_write(inode, fs32_to_cpu(sb, ufs 610 i_uid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_uid));
631 i_gid_write(inode, fs32_to_cpu(sb, ufs 611 i_gid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_gid));
632 612
633 inode->i_size = fs64_to_cpu(sb, ufs2_i 613 inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);
634 inode_set_atime(inode, fs64_to_cpu(sb, !! 614 inode->i_atime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_atime);
635 fs32_to_cpu(sb, ufs2_i !! 615 inode->i_ctime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_ctime);
636 inode_set_ctime(inode, fs64_to_cpu(sb, !! 616 inode->i_mtime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_mtime);
637 fs32_to_cpu(sb, ufs2_i !! 617 inode->i_atime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_atimensec);
638 inode_set_mtime(inode, fs64_to_cpu(sb, !! 618 inode->i_ctime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_ctimensec);
639 fs32_to_cpu(sb, ufs2_i !! 619 inode->i_mtime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_mtimensec);
640 inode->i_blocks = fs64_to_cpu(sb, ufs2 620 inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);
641 inode->i_generation = fs32_to_cpu(sb, 621 inode->i_generation = fs32_to_cpu(sb, ufs2_inode->ui_gen);
642 ufsi->i_flags = fs32_to_cpu(sb, ufs2_i 622 ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags);
643 /* 623 /*
644 ufsi->i_shadow = fs32_to_cpu(sb, ufs_i 624 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
645 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs 625 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
646 */ 626 */
647 627
648 if (S_ISCHR(mode) || S_ISBLK(mode) || 628 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
649 memcpy(ufsi->i_u1.u2_i_data, & 629 memcpy(ufsi->i_u1.u2_i_data, &ufs2_inode->ui_u2.ui_addr,
650 sizeof(ufs2_inode->ui_u 630 sizeof(ufs2_inode->ui_u2.ui_addr));
651 } else { 631 } else {
652 memcpy(ufsi->i_u1.i_symlink, u 632 memcpy(ufsi->i_u1.i_symlink, ufs2_inode->ui_u2.ui_symlink,
653 sizeof(ufs2_inode->ui_u 633 sizeof(ufs2_inode->ui_u2.ui_symlink) - 1);
654 ufsi->i_u1.i_symlink[sizeof(uf 634 ufsi->i_u1.i_symlink[sizeof(ufs2_inode->ui_u2.ui_symlink) - 1] = 0;
655 } 635 }
656 return 0; 636 return 0;
657 } 637 }
658 638
659 struct inode *ufs_iget(struct super_block *sb, 639 struct inode *ufs_iget(struct super_block *sb, unsigned long ino)
660 { 640 {
661 struct ufs_inode_info *ufsi; 641 struct ufs_inode_info *ufsi;
662 struct ufs_sb_private_info *uspi = UFS 642 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
663 struct buffer_head * bh; 643 struct buffer_head * bh;
664 struct inode *inode; 644 struct inode *inode;
665 int err = -EIO; !! 645 int err;
666 646
667 UFSD("ENTER, ino %lu\n", ino); 647 UFSD("ENTER, ino %lu\n", ino);
668 648
669 if (ino < UFS_ROOTINO || ino > (uspi-> 649 if (ino < UFS_ROOTINO || ino > (uspi->s_ncg * uspi->s_ipg)) {
670 ufs_warning(sb, "ufs_read_inod 650 ufs_warning(sb, "ufs_read_inode", "bad inode number (%lu)\n",
671 ino); 651 ino);
672 return ERR_PTR(-EIO); 652 return ERR_PTR(-EIO);
673 } 653 }
674 654
675 inode = iget_locked(sb, ino); 655 inode = iget_locked(sb, ino);
676 if (!inode) 656 if (!inode)
677 return ERR_PTR(-ENOMEM); 657 return ERR_PTR(-ENOMEM);
678 if (!(inode->i_state & I_NEW)) 658 if (!(inode->i_state & I_NEW))
679 return inode; 659 return inode;
680 660
681 ufsi = UFS_I(inode); 661 ufsi = UFS_I(inode);
682 662
683 bh = sb_bread(sb, uspi->s_sbbase + ufs 663 bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
684 if (!bh) { 664 if (!bh) {
685 ufs_warning(sb, "ufs_read_inod 665 ufs_warning(sb, "ufs_read_inode", "unable to read inode %lu\n",
686 inode->i_ino); 666 inode->i_ino);
687 goto bad_inode; 667 goto bad_inode;
688 } 668 }
689 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MA 669 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
690 struct ufs2_inode *ufs2_inode 670 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
691 671
692 err = ufs2_read_inode(inode, 672 err = ufs2_read_inode(inode,
693 ufs2_ino 673 ufs2_inode + ufs_inotofsbo(inode->i_ino));
694 } else { 674 } else {
695 struct ufs_inode *ufs_inode = 675 struct ufs_inode *ufs_inode = (struct ufs_inode *)bh->b_data;
696 676
697 err = ufs1_read_inode(inode, 677 err = ufs1_read_inode(inode,
698 ufs_inod 678 ufs_inode + ufs_inotofsbo(inode->i_ino));
699 } 679 }
700 brelse(bh); !! 680
701 if (err) 681 if (err)
702 goto bad_inode; 682 goto bad_inode;
703 !! 683 inode->i_version++;
704 inode_inc_iversion(inode); <<
705 ufsi->i_lastfrag = 684 ufsi->i_lastfrag =
706 (inode->i_size + uspi->s_fsize 685 (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
707 ufsi->i_dir_start_lookup = 0; 686 ufsi->i_dir_start_lookup = 0;
708 ufsi->i_osync = 0; 687 ufsi->i_osync = 0;
709 688
710 ufs_set_inode_ops(inode); 689 ufs_set_inode_ops(inode);
711 690
>> 691 brelse(bh);
>> 692
712 UFSD("EXIT\n"); 693 UFSD("EXIT\n");
713 unlock_new_inode(inode); 694 unlock_new_inode(inode);
714 return inode; 695 return inode;
715 696
716 bad_inode: 697 bad_inode:
717 iget_failed(inode); 698 iget_failed(inode);
718 return ERR_PTR(err); !! 699 return ERR_PTR(-EIO);
719 } 700 }
720 701
721 static void ufs1_update_inode(struct inode *in 702 static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
722 { 703 {
723 struct super_block *sb = inode->i_sb; 704 struct super_block *sb = inode->i_sb;
724 struct ufs_inode_info *ufsi = UFS_I(in 705 struct ufs_inode_info *ufsi = UFS_I(inode);
725 706
726 ufs_inode->ui_mode = cpu_to_fs16(sb, i 707 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
727 ufs_inode->ui_nlink = cpu_to_fs16(sb, 708 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
728 709
729 ufs_set_inode_uid(sb, ufs_inode, i_uid 710 ufs_set_inode_uid(sb, ufs_inode, i_uid_read(inode));
730 ufs_set_inode_gid(sb, ufs_inode, i_gid 711 ufs_set_inode_gid(sb, ufs_inode, i_gid_read(inode));
731 712
732 ufs_inode->ui_size = cpu_to_fs64(sb, i 713 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
733 ufs_inode->ui_atime.tv_sec = cpu_to_fs !! 714 ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec);
734 <<
735 ufs_inode->ui_atime.tv_usec = 0; 715 ufs_inode->ui_atime.tv_usec = 0;
736 ufs_inode->ui_ctime.tv_sec = cpu_to_fs !! 716 ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime.tv_sec);
737 <<
738 ufs_inode->ui_ctime.tv_usec = 0; 717 ufs_inode->ui_ctime.tv_usec = 0;
739 ufs_inode->ui_mtime.tv_sec = cpu_to_fs !! 718 ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec);
740 <<
741 ufs_inode->ui_mtime.tv_usec = 0; 719 ufs_inode->ui_mtime.tv_usec = 0;
742 ufs_inode->ui_blocks = cpu_to_fs32(sb, 720 ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
743 ufs_inode->ui_flags = cpu_to_fs32(sb, 721 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
744 ufs_inode->ui_gen = cpu_to_fs32(sb, in 722 ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
745 723
746 if ((UFS_SB(sb)->s_flags & UFS_UID_MAS 724 if ((UFS_SB(sb)->s_flags & UFS_UID_MASK) == UFS_UID_EFT) {
747 ufs_inode->ui_u3.ui_sun.ui_sha 725 ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow);
748 ufs_inode->ui_u3.ui_sun.ui_oef 726 ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag);
749 } 727 }
750 728
751 if (S_ISCHR(inode->i_mode) || S_ISBLK( 729 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
752 /* ufs_inode->ui_u2.ui_addr.ui 730 /* 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 731 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
754 } else if (inode->i_blocks) { 732 } else if (inode->i_blocks) {
755 memcpy(&ufs_inode->ui_u2.ui_ad 733 memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.i_data,
756 sizeof(ufs_inode->ui_u2 734 sizeof(ufs_inode->ui_u2.ui_addr));
757 } 735 }
758 else { 736 else {
759 memcpy(&ufs_inode->ui_u2.ui_sy 737 memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
760 sizeof(ufs_inode->ui_u2 738 sizeof(ufs_inode->ui_u2.ui_symlink));
761 } 739 }
762 740
763 if (!inode->i_nlink) 741 if (!inode->i_nlink)
764 memset (ufs_inode, 0, sizeof(s 742 memset (ufs_inode, 0, sizeof(struct ufs_inode));
765 } 743 }
766 744
767 static void ufs2_update_inode(struct inode *in 745 static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
768 { 746 {
769 struct super_block *sb = inode->i_sb; 747 struct super_block *sb = inode->i_sb;
770 struct ufs_inode_info *ufsi = UFS_I(in 748 struct ufs_inode_info *ufsi = UFS_I(inode);
771 749
772 UFSD("ENTER\n"); 750 UFSD("ENTER\n");
773 ufs_inode->ui_mode = cpu_to_fs16(sb, i 751 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
774 ufs_inode->ui_nlink = cpu_to_fs16(sb, 752 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
775 753
776 ufs_inode->ui_uid = cpu_to_fs32(sb, i_ 754 ufs_inode->ui_uid = cpu_to_fs32(sb, i_uid_read(inode));
777 ufs_inode->ui_gid = cpu_to_fs32(sb, i_ 755 ufs_inode->ui_gid = cpu_to_fs32(sb, i_gid_read(inode));
778 756
779 ufs_inode->ui_size = cpu_to_fs64(sb, i 757 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
780 ufs_inode->ui_atime = cpu_to_fs64(sb, !! 758 ufs_inode->ui_atime = cpu_to_fs64(sb, inode->i_atime.tv_sec);
781 ufs_inode->ui_atimensec = cpu_to_fs32( !! 759 ufs_inode->ui_atimensec = cpu_to_fs32(sb, inode->i_atime.tv_nsec);
782 !! 760 ufs_inode->ui_ctime = cpu_to_fs64(sb, inode->i_ctime.tv_sec);
783 ufs_inode->ui_ctime = cpu_to_fs64(sb, !! 761 ufs_inode->ui_ctimensec = cpu_to_fs32(sb, inode->i_ctime.tv_nsec);
784 ufs_inode->ui_ctimensec = cpu_to_fs32( !! 762 ufs_inode->ui_mtime = cpu_to_fs64(sb, inode->i_mtime.tv_sec);
785 !! 763 ufs_inode->ui_mtimensec = cpu_to_fs32(sb, inode->i_mtime.tv_nsec);
786 ufs_inode->ui_mtime = cpu_to_fs64(sb, <<
787 ufs_inode->ui_mtimensec = cpu_to_fs32( <<
788 <<
789 764
790 ufs_inode->ui_blocks = cpu_to_fs64(sb, 765 ufs_inode->ui_blocks = cpu_to_fs64(sb, inode->i_blocks);
791 ufs_inode->ui_flags = cpu_to_fs32(sb, 766 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
792 ufs_inode->ui_gen = cpu_to_fs32(sb, in 767 ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
793 768
794 if (S_ISCHR(inode->i_mode) || S_ISBLK( 769 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
795 /* ufs_inode->ui_u2.ui_addr.ui 770 /* 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 771 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.u2_i_data[0];
797 } else if (inode->i_blocks) { 772 } else if (inode->i_blocks) {
798 memcpy(&ufs_inode->ui_u2.ui_ad 773 memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.u2_i_data,
799 sizeof(ufs_inode->ui_u2 774 sizeof(ufs_inode->ui_u2.ui_addr));
800 } else { 775 } else {
801 memcpy(&ufs_inode->ui_u2.ui_sy 776 memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
802 sizeof(ufs_inode->ui_u2 777 sizeof(ufs_inode->ui_u2.ui_symlink));
803 } 778 }
804 779
805 if (!inode->i_nlink) 780 if (!inode->i_nlink)
806 memset (ufs_inode, 0, sizeof(s 781 memset (ufs_inode, 0, sizeof(struct ufs2_inode));
807 UFSD("EXIT\n"); 782 UFSD("EXIT\n");
808 } 783 }
809 784
810 static int ufs_update_inode(struct inode * ino 785 static int ufs_update_inode(struct inode * inode, int do_sync)
811 { 786 {
812 struct super_block *sb = inode->i_sb; 787 struct super_block *sb = inode->i_sb;
813 struct ufs_sb_private_info *uspi = UFS 788 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
814 struct buffer_head * bh; 789 struct buffer_head * bh;
815 790
816 UFSD("ENTER, ino %lu\n", inode->i_ino) 791 UFSD("ENTER, ino %lu\n", inode->i_ino);
817 792
818 if (inode->i_ino < UFS_ROOTINO || 793 if (inode->i_ino < UFS_ROOTINO ||
819 inode->i_ino > (uspi->s_ncg * uspi 794 inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
820 ufs_warning (sb, "ufs_read_ino 795 ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
821 return -1; 796 return -1;
822 } 797 }
823 798
824 bh = sb_bread(sb, ufs_inotofsba(inode- 799 bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
825 if (!bh) { 800 if (!bh) {
826 ufs_warning (sb, "ufs_read_ino 801 ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
827 return -1; 802 return -1;
828 } 803 }
829 if (uspi->fs_magic == UFS2_MAGIC) { 804 if (uspi->fs_magic == UFS2_MAGIC) {
830 struct ufs2_inode *ufs2_inode 805 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
831 806
832 ufs2_update_inode(inode, 807 ufs2_update_inode(inode,
833 ufs2_inode + 808 ufs2_inode + ufs_inotofsbo(inode->i_ino));
834 } else { 809 } else {
835 struct ufs_inode *ufs_inode = 810 struct ufs_inode *ufs_inode = (struct ufs_inode *) bh->b_data;
836 811
837 ufs1_update_inode(inode, ufs_i 812 ufs1_update_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));
838 } 813 }
839 814
840 mark_buffer_dirty(bh); 815 mark_buffer_dirty(bh);
841 if (do_sync) 816 if (do_sync)
842 sync_dirty_buffer(bh); 817 sync_dirty_buffer(bh);
843 brelse (bh); 818 brelse (bh);
844 819
845 UFSD("EXIT\n"); 820 UFSD("EXIT\n");
846 return 0; 821 return 0;
847 } 822 }
848 823
849 int ufs_write_inode(struct inode *inode, struc 824 int ufs_write_inode(struct inode *inode, struct writeback_control *wbc)
850 { 825 {
851 return ufs_update_inode(inode, wbc->sy 826 return ufs_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
852 } 827 }
853 828
854 int ufs_sync_inode (struct inode *inode) 829 int ufs_sync_inode (struct inode *inode)
855 { 830 {
856 return ufs_update_inode (inode, 1); 831 return ufs_update_inode (inode, 1);
857 } 832 }
858 833
859 void ufs_evict_inode(struct inode * inode) 834 void ufs_evict_inode(struct inode * inode)
860 { 835 {
861 int want_delete = 0; 836 int want_delete = 0;
862 837
863 if (!inode->i_nlink && !is_bad_inode(i 838 if (!inode->i_nlink && !is_bad_inode(inode))
864 want_delete = 1; 839 want_delete = 1;
865 840
866 truncate_inode_pages_final(&inode->i_d 841 truncate_inode_pages_final(&inode->i_data);
867 if (want_delete) { 842 if (want_delete) {
868 inode->i_size = 0; 843 inode->i_size = 0;
869 if (inode->i_blocks && !! 844 if (inode->i_blocks)
870 (S_ISREG(inode->i_mode) || <<
871 S_ISLNK(inode->i_mode))) <<
872 ufs_truncate_blocks(in 845 ufs_truncate_blocks(inode);
873 ufs_update_inode(inode, inode_ <<
874 } 846 }
875 847
876 invalidate_inode_buffers(inode); 848 invalidate_inode_buffers(inode);
877 clear_inode(inode); 849 clear_inode(inode);
878 850
879 if (want_delete) 851 if (want_delete)
880 ufs_free_inode(inode); 852 ufs_free_inode(inode);
881 } 853 }
882 854
883 struct to_free { 855 struct to_free {
884 struct inode *inode; 856 struct inode *inode;
885 u64 to; 857 u64 to;
886 unsigned count; 858 unsigned count;
887 }; 859 };
888 860
889 static inline void free_data(struct to_free *c 861 static inline void free_data(struct to_free *ctx, u64 from, unsigned count)
890 { 862 {
891 if (ctx->count && ctx->to != from) { 863 if (ctx->count && ctx->to != from) {
892 ufs_free_blocks(ctx->inode, ct 864 ufs_free_blocks(ctx->inode, ctx->to - ctx->count, ctx->count);
893 ctx->count = 0; 865 ctx->count = 0;
894 } 866 }
895 ctx->count += count; 867 ctx->count += count;
896 ctx->to = from + count; 868 ctx->to = from + count;
897 } 869 }
898 870
>> 871 #define DIRECT_BLOCK ((inode->i_size + uspi->s_bsize - 1) >> uspi->s_bshift)
899 #define DIRECT_FRAGMENT ((inode->i_size + uspi 872 #define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
900 873
901 static void ufs_trunc_direct(struct inode *ino 874 static void ufs_trunc_direct(struct inode *inode)
902 { 875 {
903 struct ufs_inode_info *ufsi = UFS_I(in 876 struct ufs_inode_info *ufsi = UFS_I(inode);
904 struct super_block * sb; 877 struct super_block * sb;
905 struct ufs_sb_private_info * uspi; 878 struct ufs_sb_private_info * uspi;
906 void *p; 879 void *p;
907 u64 frag1, frag2, frag3, frag4, block1 880 u64 frag1, frag2, frag3, frag4, block1, block2;
908 struct to_free ctx = {.inode = inode}; 881 struct to_free ctx = {.inode = inode};
909 unsigned i, tmp; 882 unsigned i, tmp;
910 883
911 UFSD("ENTER: ino %lu\n", inode->i_ino) 884 UFSD("ENTER: ino %lu\n", inode->i_ino);
912 885
913 sb = inode->i_sb; 886 sb = inode->i_sb;
914 uspi = UFS_SB(sb)->s_uspi; 887 uspi = UFS_SB(sb)->s_uspi;
915 888
916 frag1 = DIRECT_FRAGMENT; 889 frag1 = DIRECT_FRAGMENT;
917 frag4 = min_t(u64, UFS_NDIR_FRAGMENT, 890 frag4 = min_t(u64, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag);
918 frag2 = ((frag1 & uspi->s_fpbmask) ? ( 891 frag2 = ((frag1 & uspi->s_fpbmask) ? ((frag1 | uspi->s_fpbmask) + 1) : frag1);
919 frag3 = frag4 & ~uspi->s_fpbmask; 892 frag3 = frag4 & ~uspi->s_fpbmask;
920 block1 = block2 = 0; 893 block1 = block2 = 0;
921 if (frag2 > frag3) { 894 if (frag2 > frag3) {
922 frag2 = frag4; 895 frag2 = frag4;
923 frag3 = frag4 = 0; 896 frag3 = frag4 = 0;
924 } else if (frag2 < frag3) { 897 } else if (frag2 < frag3) {
925 block1 = ufs_fragstoblks (frag 898 block1 = ufs_fragstoblks (frag2);
926 block2 = ufs_fragstoblks (frag 899 block2 = ufs_fragstoblks (frag3);
927 } 900 }
928 901
929 UFSD("ino %lu, frag1 %llu, frag2 %llu, 902 UFSD("ino %lu, frag1 %llu, frag2 %llu, block1 %llu, block2 %llu,"
930 " frag3 %llu, frag4 %llu\n", inod 903 " frag3 %llu, frag4 %llu\n", inode->i_ino,
931 (unsigned long long)frag1, (unsig 904 (unsigned long long)frag1, (unsigned long long)frag2,
932 (unsigned long long)block1, (unsi 905 (unsigned long long)block1, (unsigned long long)block2,
933 (unsigned long long)frag3, (unsig 906 (unsigned long long)frag3, (unsigned long long)frag4);
934 907
935 if (frag1 >= frag2) 908 if (frag1 >= frag2)
936 goto next1; 909 goto next1;
937 910
938 /* 911 /*
939 * Free first free fragments 912 * Free first free fragments
940 */ 913 */
941 p = ufs_get_direct_data_ptr(uspi, ufsi 914 p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag1));
942 tmp = ufs_data_ptr_to_cpu(sb, p); 915 tmp = ufs_data_ptr_to_cpu(sb, p);
943 if (!tmp ) 916 if (!tmp )
944 ufs_panic (sb, "ufs_trunc_dire 917 ufs_panic (sb, "ufs_trunc_direct", "internal error");
945 frag2 -= frag1; 918 frag2 -= frag1;
946 frag1 = ufs_fragnum (frag1); 919 frag1 = ufs_fragnum (frag1);
947 920
948 ufs_free_fragments(inode, tmp + frag1, 921 ufs_free_fragments(inode, tmp + frag1, frag2);
949 922
950 next1: 923 next1:
951 /* 924 /*
952 * Free whole blocks 925 * Free whole blocks
953 */ 926 */
954 for (i = block1 ; i < block2; i++) { 927 for (i = block1 ; i < block2; i++) {
955 p = ufs_get_direct_data_ptr(us 928 p = ufs_get_direct_data_ptr(uspi, ufsi, i);
956 tmp = ufs_data_ptr_to_cpu(sb, 929 tmp = ufs_data_ptr_to_cpu(sb, p);
957 if (!tmp) 930 if (!tmp)
958 continue; 931 continue;
959 write_seqlock(&ufsi->meta_lock 932 write_seqlock(&ufsi->meta_lock);
960 ufs_data_ptr_clear(uspi, p); 933 ufs_data_ptr_clear(uspi, p);
961 write_sequnlock(&ufsi->meta_lo 934 write_sequnlock(&ufsi->meta_lock);
962 935
963 free_data(&ctx, tmp, uspi->s_f 936 free_data(&ctx, tmp, uspi->s_fpb);
964 } 937 }
965 938
966 free_data(&ctx, 0, 0); 939 free_data(&ctx, 0, 0);
967 940
968 if (frag3 >= frag4) 941 if (frag3 >= frag4)
969 goto next3; 942 goto next3;
970 943
971 /* 944 /*
972 * Free last free fragments 945 * Free last free fragments
973 */ 946 */
974 p = ufs_get_direct_data_ptr(uspi, ufsi 947 p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag3));
975 tmp = ufs_data_ptr_to_cpu(sb, p); 948 tmp = ufs_data_ptr_to_cpu(sb, p);
976 if (!tmp ) 949 if (!tmp )
977 ufs_panic(sb, "ufs_truncate_di 950 ufs_panic(sb, "ufs_truncate_direct", "internal error");
978 frag4 = ufs_fragnum (frag4); 951 frag4 = ufs_fragnum (frag4);
979 write_seqlock(&ufsi->meta_lock); 952 write_seqlock(&ufsi->meta_lock);
980 ufs_data_ptr_clear(uspi, p); 953 ufs_data_ptr_clear(uspi, p);
981 write_sequnlock(&ufsi->meta_lock); 954 write_sequnlock(&ufsi->meta_lock);
982 955
983 ufs_free_fragments (inode, tmp, frag4) 956 ufs_free_fragments (inode, tmp, frag4);
984 next3: 957 next3:
985 958
986 UFSD("EXIT: ino %lu\n", inode->i_ino); 959 UFSD("EXIT: ino %lu\n", inode->i_ino);
987 } 960 }
988 961
989 static void free_full_branch(struct inode *ino 962 static void free_full_branch(struct inode *inode, u64 ind_block, int depth)
990 { 963 {
991 struct super_block *sb = inode->i_sb; 964 struct super_block *sb = inode->i_sb;
992 struct ufs_sb_private_info *uspi = UFS 965 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
993 struct ufs_buffer_head *ubh = ubh_brea 966 struct ufs_buffer_head *ubh = ubh_bread(sb, ind_block, uspi->s_bsize);
994 unsigned i; 967 unsigned i;
995 968
996 if (!ubh) 969 if (!ubh)
997 return; 970 return;
998 971
999 if (--depth) { 972 if (--depth) {
1000 for (i = 0; i < uspi->s_apb; 973 for (i = 0; i < uspi->s_apb; i++) {
1001 void *p = ubh_get_dat 974 void *p = ubh_get_data_ptr(uspi, ubh, i);
1002 u64 block = ufs_data_ 975 u64 block = ufs_data_ptr_to_cpu(sb, p);
1003 if (block) 976 if (block)
1004 free_full_bra 977 free_full_branch(inode, block, depth);
1005 } 978 }
1006 } else { 979 } else {
1007 struct to_free ctx = {.inode 980 struct to_free ctx = {.inode = inode};
1008 981
1009 for (i = 0; i < uspi->s_apb; 982 for (i = 0; i < uspi->s_apb; i++) {
1010 void *p = ubh_get_dat 983 void *p = ubh_get_data_ptr(uspi, ubh, i);
1011 u64 block = ufs_data_ 984 u64 block = ufs_data_ptr_to_cpu(sb, p);
1012 if (block) 985 if (block)
1013 free_data(&ct 986 free_data(&ctx, block, uspi->s_fpb);
1014 } 987 }
1015 free_data(&ctx, 0, 0); 988 free_data(&ctx, 0, 0);
1016 } 989 }
1017 990
1018 ubh_bforget(ubh); 991 ubh_bforget(ubh);
1019 ufs_free_blocks(inode, ind_block, usp 992 ufs_free_blocks(inode, ind_block, uspi->s_fpb);
1020 } 993 }
1021 994
1022 static void free_branch_tail(struct inode *in 995 static void free_branch_tail(struct inode *inode, unsigned from, struct ufs_buffer_head *ubh, int depth)
1023 { 996 {
1024 struct super_block *sb = inode->i_sb; 997 struct super_block *sb = inode->i_sb;
1025 struct ufs_sb_private_info *uspi = UF 998 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1026 unsigned i; 999 unsigned i;
1027 1000
1028 if (--depth) { 1001 if (--depth) {
1029 for (i = from; i < uspi->s_ap 1002 for (i = from; i < uspi->s_apb ; i++) {
1030 void *p = ubh_get_dat 1003 void *p = ubh_get_data_ptr(uspi, ubh, i);
1031 u64 block = ufs_data_ 1004 u64 block = ufs_data_ptr_to_cpu(sb, p);
1032 if (block) { 1005 if (block) {
1033 write_seqlock 1006 write_seqlock(&UFS_I(inode)->meta_lock);
1034 ufs_data_ptr_ 1007 ufs_data_ptr_clear(uspi, p);
1035 write_sequnlo 1008 write_sequnlock(&UFS_I(inode)->meta_lock);
1036 ubh_mark_buff 1009 ubh_mark_buffer_dirty(ubh);
1037 free_full_bra 1010 free_full_branch(inode, block, depth);
1038 } 1011 }
1039 } 1012 }
1040 } else { 1013 } else {
1041 struct to_free ctx = {.inode 1014 struct to_free ctx = {.inode = inode};
1042 1015
1043 for (i = from; i < uspi->s_ap 1016 for (i = from; i < uspi->s_apb; i++) {
1044 void *p = ubh_get_dat 1017 void *p = ubh_get_data_ptr(uspi, ubh, i);
1045 u64 block = ufs_data_ 1018 u64 block = ufs_data_ptr_to_cpu(sb, p);
1046 if (block) { 1019 if (block) {
1047 write_seqlock 1020 write_seqlock(&UFS_I(inode)->meta_lock);
1048 ufs_data_ptr_ 1021 ufs_data_ptr_clear(uspi, p);
1049 write_sequnlo 1022 write_sequnlock(&UFS_I(inode)->meta_lock);
1050 ubh_mark_buff 1023 ubh_mark_buffer_dirty(ubh);
1051 free_data(&ct 1024 free_data(&ctx, block, uspi->s_fpb);
1052 } 1025 }
1053 } 1026 }
1054 free_data(&ctx, 0, 0); 1027 free_data(&ctx, 0, 0);
1055 } 1028 }
1056 if (IS_SYNC(inode) && ubh_buffer_dirt 1029 if (IS_SYNC(inode) && ubh_buffer_dirty(ubh))
1057 ubh_sync_block(ubh); 1030 ubh_sync_block(ubh);
1058 ubh_brelse(ubh); 1031 ubh_brelse(ubh);
1059 } 1032 }
1060 1033
1061 static int ufs_alloc_lastblock(struct inode * 1034 static int ufs_alloc_lastblock(struct inode *inode, loff_t size)
1062 { 1035 {
1063 int err = 0; 1036 int err = 0;
1064 struct super_block *sb = inode->i_sb; 1037 struct super_block *sb = inode->i_sb;
1065 struct address_space *mapping = inode 1038 struct address_space *mapping = inode->i_mapping;
1066 struct ufs_sb_private_info *uspi = UF 1039 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1067 unsigned i, end; 1040 unsigned i, end;
1068 sector_t lastfrag; 1041 sector_t lastfrag;
1069 struct folio *folio; !! 1042 struct page *lastpage;
1070 struct buffer_head *bh; 1043 struct buffer_head *bh;
1071 u64 phys64; 1044 u64 phys64;
1072 1045
1073 lastfrag = (size + uspi->s_fsize - 1) 1046 lastfrag = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
1074 1047
1075 if (!lastfrag) 1048 if (!lastfrag)
1076 goto out; 1049 goto out;
1077 1050
1078 lastfrag--; 1051 lastfrag--;
1079 1052
1080 folio = ufs_get_locked_folio(mapping, !! 1053 lastpage = ufs_get_locked_page(mapping, lastfrag >>
1081 (PAGE_ 1054 (PAGE_SHIFT - inode->i_blkbits));
1082 if (IS_ERR(folio)) { !! 1055 if (IS_ERR(lastpage)) {
1083 err = -EIO; !! 1056 err = -EIO;
1084 goto out; !! 1057 goto out;
1085 } !! 1058 }
>> 1059
>> 1060 end = lastfrag & ((1 << (PAGE_SHIFT - inode->i_blkbits)) - 1);
>> 1061 bh = page_buffers(lastpage);
>> 1062 for (i = 0; i < end; ++i)
>> 1063 bh = bh->b_this_page;
1086 1064
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 1065
1092 err = ufs_getfrag_block(inode, lastfra 1066 err = ufs_getfrag_block(inode, lastfrag, bh, 1);
1093 1067
1094 if (unlikely(err)) 1068 if (unlikely(err))
1095 goto out_unlock; 1069 goto out_unlock;
1096 1070
1097 if (buffer_new(bh)) { 1071 if (buffer_new(bh)) {
1098 clear_buffer_new(bh); 1072 clear_buffer_new(bh);
1099 clean_bdev_bh_alias(bh); 1073 clean_bdev_bh_alias(bh);
1100 /* 1074 /*
1101 * we do not zeroize fragment, 1075 * we do not zeroize fragment, because of
1102 * if it maped to hole, it alr 1076 * if it maped to hole, it already contains zeroes
1103 */ 1077 */
1104 set_buffer_uptodate(bh); 1078 set_buffer_uptodate(bh);
1105 mark_buffer_dirty(bh); 1079 mark_buffer_dirty(bh);
1106 folio_mark_dirty(folio); !! 1080 set_page_dirty(lastpage);
1107 } 1081 }
1108 1082
1109 if (lastfrag >= UFS_IND_FRAGMENT) { 1083 if (lastfrag >= UFS_IND_FRAGMENT) {
1110 end = uspi->s_fpb - ufs_fragnu 1084 end = uspi->s_fpb - ufs_fragnum(lastfrag) - 1;
1111 phys64 = bh->b_blocknr + 1; 1085 phys64 = bh->b_blocknr + 1;
1112 for (i = 0; i < end; ++i) { 1086 for (i = 0; i < end; ++i) {
1113 bh = sb_getblk(sb, i + 1087 bh = sb_getblk(sb, i + phys64);
1114 lock_buffer(bh); 1088 lock_buffer(bh);
1115 memset(bh->b_data, 0, 1089 memset(bh->b_data, 0, sb->s_blocksize);
1116 set_buffer_uptodate(bh 1090 set_buffer_uptodate(bh);
1117 mark_buffer_dirty(bh); 1091 mark_buffer_dirty(bh);
1118 unlock_buffer(bh); 1092 unlock_buffer(bh);
1119 sync_dirty_buffer(bh); 1093 sync_dirty_buffer(bh);
1120 brelse(bh); 1094 brelse(bh);
1121 } 1095 }
1122 } 1096 }
1123 out_unlock: 1097 out_unlock:
1124 ufs_put_locked_folio(folio); !! 1098 ufs_put_locked_page(lastpage);
1125 out: 1099 out:
1126 return err; 1100 return err;
1127 } 1101 }
1128 1102
1129 static void ufs_truncate_blocks(struct inode !! 1103 static void __ufs_truncate_blocks(struct inode *inode)
1130 { 1104 {
1131 struct ufs_inode_info *ufsi = UFS_I(i 1105 struct ufs_inode_info *ufsi = UFS_I(inode);
1132 struct super_block *sb = inode->i_sb; 1106 struct super_block *sb = inode->i_sb;
1133 struct ufs_sb_private_info *uspi = UF 1107 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1134 unsigned offsets[4]; 1108 unsigned offsets[4];
1135 int depth; !! 1109 int depth = ufs_block_to_path(inode, DIRECT_BLOCK, offsets);
1136 int depth2; 1110 int depth2;
1137 unsigned i; 1111 unsigned i;
1138 struct ufs_buffer_head *ubh[3]; 1112 struct ufs_buffer_head *ubh[3];
1139 void *p; 1113 void *p;
1140 u64 block; 1114 u64 block;
1141 1115
1142 if (inode->i_size) { !! 1116 if (!depth)
1143 sector_t last = (inode->i_siz !! 1117 return;
1144 depth = ufs_block_to_path(ino <<
1145 if (!depth) <<
1146 return; <<
1147 } else { <<
1148 depth = 1; <<
1149 } <<
1150 1118
>> 1119 /* find the last non-zero in offsets[] */
1151 for (depth2 = depth - 1; depth2; dept 1120 for (depth2 = depth - 1; depth2; depth2--)
1152 if (offsets[depth2] != uspi-> !! 1121 if (offsets[depth2])
1153 break; 1122 break;
1154 1123
1155 mutex_lock(&ufsi->truncate_mutex); 1124 mutex_lock(&ufsi->truncate_mutex);
1156 if (depth == 1) { 1125 if (depth == 1) {
1157 ufs_trunc_direct(inode); 1126 ufs_trunc_direct(inode);
1158 offsets[0] = UFS_IND_BLOCK; 1127 offsets[0] = UFS_IND_BLOCK;
1159 } else { 1128 } else {
1160 /* get the blocks that should 1129 /* get the blocks that should be partially emptied */
1161 p = ufs_get_direct_data_ptr(u !! 1130 p = ufs_get_direct_data_ptr(uspi, ufsi, offsets[0]);
1162 for (i = 0; i < depth2; i++) 1131 for (i = 0; i < depth2; i++) {
>> 1132 offsets[i]++; /* next branch is fully freed */
1163 block = ufs_data_ptr_ 1133 block = ufs_data_ptr_to_cpu(sb, p);
1164 if (!block) 1134 if (!block)
1165 break; 1135 break;
1166 ubh[i] = ubh_bread(sb 1136 ubh[i] = ubh_bread(sb, block, uspi->s_bsize);
1167 if (!ubh[i]) { 1137 if (!ubh[i]) {
1168 write_seqlock 1138 write_seqlock(&ufsi->meta_lock);
1169 ufs_data_ptr_ 1139 ufs_data_ptr_clear(uspi, p);
1170 write_sequnlo 1140 write_sequnlock(&ufsi->meta_lock);
1171 break; 1141 break;
1172 } 1142 }
1173 p = ubh_get_data_ptr( !! 1143 p = ubh_get_data_ptr(uspi, ubh[i], offsets[i + 1]);
1174 } 1144 }
1175 while (i--) 1145 while (i--)
1176 free_branch_tail(inod 1146 free_branch_tail(inode, offsets[i + 1], ubh[i], depth - i - 1);
1177 } 1147 }
1178 for (i = offsets[0]; i <= UFS_TIND_BL 1148 for (i = offsets[0]; i <= UFS_TIND_BLOCK; i++) {
1179 p = ufs_get_direct_data_ptr(u 1149 p = ufs_get_direct_data_ptr(uspi, ufsi, i);
1180 block = ufs_data_ptr_to_cpu(s 1150 block = ufs_data_ptr_to_cpu(sb, p);
1181 if (block) { 1151 if (block) {
1182 write_seqlock(&ufsi-> 1152 write_seqlock(&ufsi->meta_lock);
1183 ufs_data_ptr_clear(us 1153 ufs_data_ptr_clear(uspi, p);
1184 write_sequnlock(&ufsi 1154 write_sequnlock(&ufsi->meta_lock);
1185 free_full_branch(inod 1155 free_full_branch(inode, block, i - UFS_IND_BLOCK + 1);
1186 } 1156 }
1187 } 1157 }
1188 read_seqlock_excl(&ufsi->meta_lock); <<
1189 ufsi->i_lastfrag = DIRECT_FRAGMENT; 1158 ufsi->i_lastfrag = DIRECT_FRAGMENT;
1190 read_sequnlock_excl(&ufsi->meta_lock) <<
1191 mark_inode_dirty(inode); 1159 mark_inode_dirty(inode);
1192 mutex_unlock(&ufsi->truncate_mutex); 1160 mutex_unlock(&ufsi->truncate_mutex);
1193 } 1161 }
1194 1162
1195 static int ufs_truncate(struct inode *inode, 1163 static int ufs_truncate(struct inode *inode, loff_t size)
1196 { 1164 {
1197 int err = 0; 1165 int err = 0;
1198 1166
1199 UFSD("ENTER: ino %lu, i_size: %llu, o 1167 UFSD("ENTER: ino %lu, i_size: %llu, old_i_size: %llu\n",
1200 inode->i_ino, (unsigned long lon 1168 inode->i_ino, (unsigned long long)size,
1201 (unsigned long long)i_size_read( 1169 (unsigned long long)i_size_read(inode));
1202 1170
1203 if (!(S_ISREG(inode->i_mode) || S_ISD 1171 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
1204 S_ISLNK(inode->i_mode))) 1172 S_ISLNK(inode->i_mode)))
1205 return -EINVAL; 1173 return -EINVAL;
1206 if (IS_APPEND(inode) || IS_IMMUTABLE( 1174 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
1207 return -EPERM; 1175 return -EPERM;
1208 1176
1209 err = ufs_alloc_lastblock(inode, size 1177 err = ufs_alloc_lastblock(inode, size);
1210 1178
1211 if (err) 1179 if (err)
1212 goto out; 1180 goto out;
1213 1181
1214 block_truncate_page(inode->i_mapping, 1182 block_truncate_page(inode->i_mapping, size, ufs_getfrag_block);
1215 1183
1216 truncate_setsize(inode, size); 1184 truncate_setsize(inode, size);
1217 1185
1218 ufs_truncate_blocks(inode); !! 1186 __ufs_truncate_blocks(inode);
1219 inode_set_mtime_to_ts(inode, inode_se !! 1187 inode->i_mtime = inode->i_ctime = current_time(inode);
1220 mark_inode_dirty(inode); 1188 mark_inode_dirty(inode);
1221 out: 1189 out:
1222 UFSD("EXIT: err %d\n", err); 1190 UFSD("EXIT: err %d\n", err);
1223 return err; 1191 return err;
1224 } 1192 }
1225 1193
1226 int ufs_setattr(struct mnt_idmap *idmap, stru !! 1194 static void ufs_truncate_blocks(struct inode *inode)
1227 struct iattr *attr) !! 1195 {
>> 1196 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
>> 1197 S_ISLNK(inode->i_mode)))
>> 1198 return;
>> 1199 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
>> 1200 return;
>> 1201 __ufs_truncate_blocks(inode);
>> 1202 }
>> 1203
>> 1204 int ufs_setattr(struct dentry *dentry, struct iattr *attr)
1228 { 1205 {
1229 struct inode *inode = d_inode(dentry) 1206 struct inode *inode = d_inode(dentry);
1230 unsigned int ia_valid = attr->ia_vali 1207 unsigned int ia_valid = attr->ia_valid;
1231 int error; 1208 int error;
1232 1209
1233 error = setattr_prepare(&nop_mnt_idma !! 1210 error = setattr_prepare(dentry, attr);
1234 if (error) 1211 if (error)
1235 return error; 1212 return error;
1236 1213
1237 if (ia_valid & ATTR_SIZE && attr->ia_ 1214 if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
1238 error = ufs_truncate(inode, a 1215 error = ufs_truncate(inode, attr->ia_size);
1239 if (error) 1216 if (error)
1240 return error; 1217 return error;
1241 } 1218 }
1242 1219
1243 setattr_copy(&nop_mnt_idmap, inode, a !! 1220 setattr_copy(inode, attr);
1244 mark_inode_dirty(inode); 1221 mark_inode_dirty(inode);
1245 return 0; 1222 return 0;
1246 } 1223 }
1247 1224
1248 const struct inode_operations ufs_file_inode_ 1225 const struct inode_operations ufs_file_inode_operations = {
1249 .setattr = ufs_setattr, 1226 .setattr = ufs_setattr,
1250 }; 1227 };
1251 1228
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