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->i_ctime = current_time(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->i_ctime = current_time(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 !! 583 inode->i_ctime.tv_sec = (signed)fs32_to_cpu(sb, ufs_inode->ui_ctime.tv_sec);
587 0); !! 584 inode->i_mtime.tv_sec = (signed)fs32_to_cpu(sb, ufs_inode->ui_mtime.tv_sec);
588 inode_set_ctime(inode, !! 585 inode->i_mtime.tv_nsec = 0;
589 (signed)fs32_to_cpu(sb !! 586 inode->i_atime.tv_nsec = 0;
590 0); !! 587 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_ 588 inode->i_blocks = fs32_to_cpu(sb, ufs_inode->ui_blocks);
595 inode->i_generation = fs32_to_cpu(sb, 589 inode->i_generation = fs32_to_cpu(sb, ufs_inode->ui_gen);
596 ufsi->i_flags = fs32_to_cpu(sb, ufs_in 590 ufsi->i_flags = fs32_to_cpu(sb, ufs_inode->ui_flags);
597 ufsi->i_shadow = fs32_to_cpu(sb, ufs_i 591 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
598 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs 592 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
599 593
600 594
601 if (S_ISCHR(mode) || S_ISBLK(mode) || 595 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
602 memcpy(ufsi->i_u1.i_data, &ufs 596 memcpy(ufsi->i_u1.i_data, &ufs_inode->ui_u2.ui_addr,
603 sizeof(ufs_inode->ui_u2 597 sizeof(ufs_inode->ui_u2.ui_addr));
604 } else { 598 } else {
605 memcpy(ufsi->i_u1.i_symlink, u 599 memcpy(ufsi->i_u1.i_symlink, ufs_inode->ui_u2.ui_symlink,
606 sizeof(ufs_inode->ui_u2 600 sizeof(ufs_inode->ui_u2.ui_symlink) - 1);
607 ufsi->i_u1.i_symlink[sizeof(uf 601 ufsi->i_u1.i_symlink[sizeof(ufs_inode->ui_u2.ui_symlink) - 1] = 0;
608 } 602 }
609 return 0; 603 return 0;
610 } 604 }
611 605
612 static int ufs2_read_inode(struct inode *inode 606 static int ufs2_read_inode(struct inode *inode, struct ufs2_inode *ufs2_inode)
613 { 607 {
614 struct ufs_inode_info *ufsi = UFS_I(in 608 struct ufs_inode_info *ufsi = UFS_I(inode);
615 struct super_block *sb = inode->i_sb; 609 struct super_block *sb = inode->i_sb;
616 umode_t mode; 610 umode_t mode;
617 611
618 UFSD("Reading ufs2 inode, ino %lu\n", 612 UFSD("Reading ufs2 inode, ino %lu\n", inode->i_ino);
619 /* 613 /*
620 * Copy data to the in-core inode. 614 * Copy data to the in-core inode.
621 */ 615 */
622 inode->i_mode = mode = fs16_to_cpu(sb, 616 inode->i_mode = mode = fs16_to_cpu(sb, ufs2_inode->ui_mode);
623 set_nlink(inode, fs16_to_cpu(sb, ufs2_ 617 set_nlink(inode, fs16_to_cpu(sb, ufs2_inode->ui_nlink));
624 if (inode->i_nlink == 0) 618 if (inode->i_nlink == 0)
625 return -ESTALE; 619 return -ESTALE;
626 620
627 /* 621 /*
628 * Linux now has 32-bit uid and gid, s 622 * Linux now has 32-bit uid and gid, so we can support EFT.
629 */ 623 */
630 i_uid_write(inode, fs32_to_cpu(sb, ufs 624 i_uid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_uid));
631 i_gid_write(inode, fs32_to_cpu(sb, ufs 625 i_gid_write(inode, fs32_to_cpu(sb, ufs2_inode->ui_gid));
632 626
633 inode->i_size = fs64_to_cpu(sb, ufs2_i 627 inode->i_size = fs64_to_cpu(sb, ufs2_inode->ui_size);
634 inode_set_atime(inode, fs64_to_cpu(sb, !! 628 inode->i_atime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_atime);
635 fs32_to_cpu(sb, ufs2_i !! 629 inode->i_ctime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_ctime);
636 inode_set_ctime(inode, fs64_to_cpu(sb, !! 630 inode->i_mtime.tv_sec = fs64_to_cpu(sb, ufs2_inode->ui_mtime);
637 fs32_to_cpu(sb, ufs2_i !! 631 inode->i_atime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_atimensec);
638 inode_set_mtime(inode, fs64_to_cpu(sb, !! 632 inode->i_ctime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_ctimensec);
639 fs32_to_cpu(sb, ufs2_i !! 633 inode->i_mtime.tv_nsec = fs32_to_cpu(sb, ufs2_inode->ui_mtimensec);
640 inode->i_blocks = fs64_to_cpu(sb, ufs2 634 inode->i_blocks = fs64_to_cpu(sb, ufs2_inode->ui_blocks);
641 inode->i_generation = fs32_to_cpu(sb, 635 inode->i_generation = fs32_to_cpu(sb, ufs2_inode->ui_gen);
642 ufsi->i_flags = fs32_to_cpu(sb, ufs2_i 636 ufsi->i_flags = fs32_to_cpu(sb, ufs2_inode->ui_flags);
643 /* 637 /*
644 ufsi->i_shadow = fs32_to_cpu(sb, ufs_i 638 ufsi->i_shadow = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_shadow);
645 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs 639 ufsi->i_oeftflag = fs32_to_cpu(sb, ufs_inode->ui_u3.ui_sun.ui_oeftflag);
646 */ 640 */
647 641
648 if (S_ISCHR(mode) || S_ISBLK(mode) || 642 if (S_ISCHR(mode) || S_ISBLK(mode) || inode->i_blocks) {
649 memcpy(ufsi->i_u1.u2_i_data, & 643 memcpy(ufsi->i_u1.u2_i_data, &ufs2_inode->ui_u2.ui_addr,
650 sizeof(ufs2_inode->ui_u 644 sizeof(ufs2_inode->ui_u2.ui_addr));
651 } else { 645 } else {
652 memcpy(ufsi->i_u1.i_symlink, u 646 memcpy(ufsi->i_u1.i_symlink, ufs2_inode->ui_u2.ui_symlink,
653 sizeof(ufs2_inode->ui_u 647 sizeof(ufs2_inode->ui_u2.ui_symlink) - 1);
654 ufsi->i_u1.i_symlink[sizeof(uf 648 ufsi->i_u1.i_symlink[sizeof(ufs2_inode->ui_u2.ui_symlink) - 1] = 0;
655 } 649 }
656 return 0; 650 return 0;
657 } 651 }
658 652
659 struct inode *ufs_iget(struct super_block *sb, 653 struct inode *ufs_iget(struct super_block *sb, unsigned long ino)
660 { 654 {
661 struct ufs_inode_info *ufsi; 655 struct ufs_inode_info *ufsi;
662 struct ufs_sb_private_info *uspi = UFS 656 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
663 struct buffer_head * bh; 657 struct buffer_head * bh;
664 struct inode *inode; 658 struct inode *inode;
665 int err = -EIO; 659 int err = -EIO;
666 660
667 UFSD("ENTER, ino %lu\n", ino); 661 UFSD("ENTER, ino %lu\n", ino);
668 662
669 if (ino < UFS_ROOTINO || ino > (uspi-> 663 if (ino < UFS_ROOTINO || ino > (uspi->s_ncg * uspi->s_ipg)) {
670 ufs_warning(sb, "ufs_read_inod 664 ufs_warning(sb, "ufs_read_inode", "bad inode number (%lu)\n",
671 ino); 665 ino);
672 return ERR_PTR(-EIO); 666 return ERR_PTR(-EIO);
673 } 667 }
674 668
675 inode = iget_locked(sb, ino); 669 inode = iget_locked(sb, ino);
676 if (!inode) 670 if (!inode)
677 return ERR_PTR(-ENOMEM); 671 return ERR_PTR(-ENOMEM);
678 if (!(inode->i_state & I_NEW)) 672 if (!(inode->i_state & I_NEW))
679 return inode; 673 return inode;
680 674
681 ufsi = UFS_I(inode); 675 ufsi = UFS_I(inode);
682 676
683 bh = sb_bread(sb, uspi->s_sbbase + ufs 677 bh = sb_bread(sb, uspi->s_sbbase + ufs_inotofsba(inode->i_ino));
684 if (!bh) { 678 if (!bh) {
685 ufs_warning(sb, "ufs_read_inod 679 ufs_warning(sb, "ufs_read_inode", "unable to read inode %lu\n",
686 inode->i_ino); 680 inode->i_ino);
687 goto bad_inode; 681 goto bad_inode;
688 } 682 }
689 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MA 683 if ((UFS_SB(sb)->s_flags & UFS_TYPE_MASK) == UFS_TYPE_UFS2) {
690 struct ufs2_inode *ufs2_inode 684 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
691 685
692 err = ufs2_read_inode(inode, 686 err = ufs2_read_inode(inode,
693 ufs2_ino 687 ufs2_inode + ufs_inotofsbo(inode->i_ino));
694 } else { 688 } else {
695 struct ufs_inode *ufs_inode = 689 struct ufs_inode *ufs_inode = (struct ufs_inode *)bh->b_data;
696 690
697 err = ufs1_read_inode(inode, 691 err = ufs1_read_inode(inode,
698 ufs_inod 692 ufs_inode + ufs_inotofsbo(inode->i_ino));
699 } 693 }
700 brelse(bh); 694 brelse(bh);
701 if (err) 695 if (err)
702 goto bad_inode; 696 goto bad_inode;
703 697
704 inode_inc_iversion(inode); 698 inode_inc_iversion(inode);
705 ufsi->i_lastfrag = 699 ufsi->i_lastfrag =
706 (inode->i_size + uspi->s_fsize 700 (inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift;
707 ufsi->i_dir_start_lookup = 0; 701 ufsi->i_dir_start_lookup = 0;
708 ufsi->i_osync = 0; 702 ufsi->i_osync = 0;
709 703
710 ufs_set_inode_ops(inode); 704 ufs_set_inode_ops(inode);
711 705
712 UFSD("EXIT\n"); 706 UFSD("EXIT\n");
713 unlock_new_inode(inode); 707 unlock_new_inode(inode);
714 return inode; 708 return inode;
715 709
716 bad_inode: 710 bad_inode:
717 iget_failed(inode); 711 iget_failed(inode);
718 return ERR_PTR(err); 712 return ERR_PTR(err);
719 } 713 }
720 714
721 static void ufs1_update_inode(struct inode *in 715 static void ufs1_update_inode(struct inode *inode, struct ufs_inode *ufs_inode)
722 { 716 {
723 struct super_block *sb = inode->i_sb; 717 struct super_block *sb = inode->i_sb;
724 struct ufs_inode_info *ufsi = UFS_I(in 718 struct ufs_inode_info *ufsi = UFS_I(inode);
725 719
726 ufs_inode->ui_mode = cpu_to_fs16(sb, i 720 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
727 ufs_inode->ui_nlink = cpu_to_fs16(sb, 721 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
728 722
729 ufs_set_inode_uid(sb, ufs_inode, i_uid 723 ufs_set_inode_uid(sb, ufs_inode, i_uid_read(inode));
730 ufs_set_inode_gid(sb, ufs_inode, i_gid 724 ufs_set_inode_gid(sb, ufs_inode, i_gid_read(inode));
731 725
732 ufs_inode->ui_size = cpu_to_fs64(sb, i 726 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
733 ufs_inode->ui_atime.tv_sec = cpu_to_fs !! 727 ufs_inode->ui_atime.tv_sec = cpu_to_fs32(sb, inode->i_atime.tv_sec);
734 <<
735 ufs_inode->ui_atime.tv_usec = 0; 728 ufs_inode->ui_atime.tv_usec = 0;
736 ufs_inode->ui_ctime.tv_sec = cpu_to_fs !! 729 ufs_inode->ui_ctime.tv_sec = cpu_to_fs32(sb, inode->i_ctime.tv_sec);
737 <<
738 ufs_inode->ui_ctime.tv_usec = 0; 730 ufs_inode->ui_ctime.tv_usec = 0;
739 ufs_inode->ui_mtime.tv_sec = cpu_to_fs !! 731 ufs_inode->ui_mtime.tv_sec = cpu_to_fs32(sb, inode->i_mtime.tv_sec);
740 <<
741 ufs_inode->ui_mtime.tv_usec = 0; 732 ufs_inode->ui_mtime.tv_usec = 0;
742 ufs_inode->ui_blocks = cpu_to_fs32(sb, 733 ufs_inode->ui_blocks = cpu_to_fs32(sb, inode->i_blocks);
743 ufs_inode->ui_flags = cpu_to_fs32(sb, 734 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
744 ufs_inode->ui_gen = cpu_to_fs32(sb, in 735 ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
745 736
746 if ((UFS_SB(sb)->s_flags & UFS_UID_MAS 737 if ((UFS_SB(sb)->s_flags & UFS_UID_MASK) == UFS_UID_EFT) {
747 ufs_inode->ui_u3.ui_sun.ui_sha 738 ufs_inode->ui_u3.ui_sun.ui_shadow = cpu_to_fs32(sb, ufsi->i_shadow);
748 ufs_inode->ui_u3.ui_sun.ui_oef 739 ufs_inode->ui_u3.ui_sun.ui_oeftflag = cpu_to_fs32(sb, ufsi->i_oeftflag);
749 } 740 }
750 741
751 if (S_ISCHR(inode->i_mode) || S_ISBLK( 742 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
752 /* ufs_inode->ui_u2.ui_addr.ui 743 /* 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 744 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.i_data[0];
754 } else if (inode->i_blocks) { 745 } else if (inode->i_blocks) {
755 memcpy(&ufs_inode->ui_u2.ui_ad 746 memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.i_data,
756 sizeof(ufs_inode->ui_u2 747 sizeof(ufs_inode->ui_u2.ui_addr));
757 } 748 }
758 else { 749 else {
759 memcpy(&ufs_inode->ui_u2.ui_sy 750 memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
760 sizeof(ufs_inode->ui_u2 751 sizeof(ufs_inode->ui_u2.ui_symlink));
761 } 752 }
762 753
763 if (!inode->i_nlink) 754 if (!inode->i_nlink)
764 memset (ufs_inode, 0, sizeof(s 755 memset (ufs_inode, 0, sizeof(struct ufs_inode));
765 } 756 }
766 757
767 static void ufs2_update_inode(struct inode *in 758 static void ufs2_update_inode(struct inode *inode, struct ufs2_inode *ufs_inode)
768 { 759 {
769 struct super_block *sb = inode->i_sb; 760 struct super_block *sb = inode->i_sb;
770 struct ufs_inode_info *ufsi = UFS_I(in 761 struct ufs_inode_info *ufsi = UFS_I(inode);
771 762
772 UFSD("ENTER\n"); 763 UFSD("ENTER\n");
773 ufs_inode->ui_mode = cpu_to_fs16(sb, i 764 ufs_inode->ui_mode = cpu_to_fs16(sb, inode->i_mode);
774 ufs_inode->ui_nlink = cpu_to_fs16(sb, 765 ufs_inode->ui_nlink = cpu_to_fs16(sb, inode->i_nlink);
775 766
776 ufs_inode->ui_uid = cpu_to_fs32(sb, i_ 767 ufs_inode->ui_uid = cpu_to_fs32(sb, i_uid_read(inode));
777 ufs_inode->ui_gid = cpu_to_fs32(sb, i_ 768 ufs_inode->ui_gid = cpu_to_fs32(sb, i_gid_read(inode));
778 769
779 ufs_inode->ui_size = cpu_to_fs64(sb, i 770 ufs_inode->ui_size = cpu_to_fs64(sb, inode->i_size);
780 ufs_inode->ui_atime = cpu_to_fs64(sb, !! 771 ufs_inode->ui_atime = cpu_to_fs64(sb, inode->i_atime.tv_sec);
781 ufs_inode->ui_atimensec = cpu_to_fs32( !! 772 ufs_inode->ui_atimensec = cpu_to_fs32(sb, inode->i_atime.tv_nsec);
782 !! 773 ufs_inode->ui_ctime = cpu_to_fs64(sb, inode->i_ctime.tv_sec);
783 ufs_inode->ui_ctime = cpu_to_fs64(sb, !! 774 ufs_inode->ui_ctimensec = cpu_to_fs32(sb, inode->i_ctime.tv_nsec);
784 ufs_inode->ui_ctimensec = cpu_to_fs32( !! 775 ufs_inode->ui_mtime = cpu_to_fs64(sb, inode->i_mtime.tv_sec);
785 !! 776 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 <<
789 777
790 ufs_inode->ui_blocks = cpu_to_fs64(sb, 778 ufs_inode->ui_blocks = cpu_to_fs64(sb, inode->i_blocks);
791 ufs_inode->ui_flags = cpu_to_fs32(sb, 779 ufs_inode->ui_flags = cpu_to_fs32(sb, ufsi->i_flags);
792 ufs_inode->ui_gen = cpu_to_fs32(sb, in 780 ufs_inode->ui_gen = cpu_to_fs32(sb, inode->i_generation);
793 781
794 if (S_ISCHR(inode->i_mode) || S_ISBLK( 782 if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
795 /* ufs_inode->ui_u2.ui_addr.ui 783 /* 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 784 ufs_inode->ui_u2.ui_addr.ui_db[0] = ufsi->i_u1.u2_i_data[0];
797 } else if (inode->i_blocks) { 785 } else if (inode->i_blocks) {
798 memcpy(&ufs_inode->ui_u2.ui_ad 786 memcpy(&ufs_inode->ui_u2.ui_addr, ufsi->i_u1.u2_i_data,
799 sizeof(ufs_inode->ui_u2 787 sizeof(ufs_inode->ui_u2.ui_addr));
800 } else { 788 } else {
801 memcpy(&ufs_inode->ui_u2.ui_sy 789 memcpy(&ufs_inode->ui_u2.ui_symlink, ufsi->i_u1.i_symlink,
802 sizeof(ufs_inode->ui_u2 790 sizeof(ufs_inode->ui_u2.ui_symlink));
803 } 791 }
804 792
805 if (!inode->i_nlink) 793 if (!inode->i_nlink)
806 memset (ufs_inode, 0, sizeof(s 794 memset (ufs_inode, 0, sizeof(struct ufs2_inode));
807 UFSD("EXIT\n"); 795 UFSD("EXIT\n");
808 } 796 }
809 797
810 static int ufs_update_inode(struct inode * ino 798 static int ufs_update_inode(struct inode * inode, int do_sync)
811 { 799 {
812 struct super_block *sb = inode->i_sb; 800 struct super_block *sb = inode->i_sb;
813 struct ufs_sb_private_info *uspi = UFS 801 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
814 struct buffer_head * bh; 802 struct buffer_head * bh;
815 803
816 UFSD("ENTER, ino %lu\n", inode->i_ino) 804 UFSD("ENTER, ino %lu\n", inode->i_ino);
817 805
818 if (inode->i_ino < UFS_ROOTINO || 806 if (inode->i_ino < UFS_ROOTINO ||
819 inode->i_ino > (uspi->s_ncg * uspi 807 inode->i_ino > (uspi->s_ncg * uspi->s_ipg)) {
820 ufs_warning (sb, "ufs_read_ino 808 ufs_warning (sb, "ufs_read_inode", "bad inode number (%lu)\n", inode->i_ino);
821 return -1; 809 return -1;
822 } 810 }
823 811
824 bh = sb_bread(sb, ufs_inotofsba(inode- 812 bh = sb_bread(sb, ufs_inotofsba(inode->i_ino));
825 if (!bh) { 813 if (!bh) {
826 ufs_warning (sb, "ufs_read_ino 814 ufs_warning (sb, "ufs_read_inode", "unable to read inode %lu\n", inode->i_ino);
827 return -1; 815 return -1;
828 } 816 }
829 if (uspi->fs_magic == UFS2_MAGIC) { 817 if (uspi->fs_magic == UFS2_MAGIC) {
830 struct ufs2_inode *ufs2_inode 818 struct ufs2_inode *ufs2_inode = (struct ufs2_inode *)bh->b_data;
831 819
832 ufs2_update_inode(inode, 820 ufs2_update_inode(inode,
833 ufs2_inode + 821 ufs2_inode + ufs_inotofsbo(inode->i_ino));
834 } else { 822 } else {
835 struct ufs_inode *ufs_inode = 823 struct ufs_inode *ufs_inode = (struct ufs_inode *) bh->b_data;
836 824
837 ufs1_update_inode(inode, ufs_i 825 ufs1_update_inode(inode, ufs_inode + ufs_inotofsbo(inode->i_ino));
838 } 826 }
839 827
840 mark_buffer_dirty(bh); 828 mark_buffer_dirty(bh);
841 if (do_sync) 829 if (do_sync)
842 sync_dirty_buffer(bh); 830 sync_dirty_buffer(bh);
843 brelse (bh); 831 brelse (bh);
844 832
845 UFSD("EXIT\n"); 833 UFSD("EXIT\n");
846 return 0; 834 return 0;
847 } 835 }
848 836
849 int ufs_write_inode(struct inode *inode, struc 837 int ufs_write_inode(struct inode *inode, struct writeback_control *wbc)
850 { 838 {
851 return ufs_update_inode(inode, wbc->sy 839 return ufs_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL);
852 } 840 }
853 841
854 int ufs_sync_inode (struct inode *inode) 842 int ufs_sync_inode (struct inode *inode)
855 { 843 {
856 return ufs_update_inode (inode, 1); 844 return ufs_update_inode (inode, 1);
857 } 845 }
858 846
859 void ufs_evict_inode(struct inode * inode) 847 void ufs_evict_inode(struct inode * inode)
860 { 848 {
861 int want_delete = 0; 849 int want_delete = 0;
862 850
863 if (!inode->i_nlink && !is_bad_inode(i 851 if (!inode->i_nlink && !is_bad_inode(inode))
864 want_delete = 1; 852 want_delete = 1;
865 853
866 truncate_inode_pages_final(&inode->i_d 854 truncate_inode_pages_final(&inode->i_data);
867 if (want_delete) { 855 if (want_delete) {
868 inode->i_size = 0; 856 inode->i_size = 0;
869 if (inode->i_blocks && 857 if (inode->i_blocks &&
870 (S_ISREG(inode->i_mode) || 858 (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
871 S_ISLNK(inode->i_mode))) 859 S_ISLNK(inode->i_mode)))
872 ufs_truncate_blocks(in 860 ufs_truncate_blocks(inode);
873 ufs_update_inode(inode, inode_ 861 ufs_update_inode(inode, inode_needs_sync(inode));
874 } 862 }
875 863
876 invalidate_inode_buffers(inode); 864 invalidate_inode_buffers(inode);
877 clear_inode(inode); 865 clear_inode(inode);
878 866
879 if (want_delete) 867 if (want_delete)
880 ufs_free_inode(inode); 868 ufs_free_inode(inode);
881 } 869 }
882 870
883 struct to_free { 871 struct to_free {
884 struct inode *inode; 872 struct inode *inode;
885 u64 to; 873 u64 to;
886 unsigned count; 874 unsigned count;
887 }; 875 };
888 876
889 static inline void free_data(struct to_free *c 877 static inline void free_data(struct to_free *ctx, u64 from, unsigned count)
890 { 878 {
891 if (ctx->count && ctx->to != from) { 879 if (ctx->count && ctx->to != from) {
892 ufs_free_blocks(ctx->inode, ct 880 ufs_free_blocks(ctx->inode, ctx->to - ctx->count, ctx->count);
893 ctx->count = 0; 881 ctx->count = 0;
894 } 882 }
895 ctx->count += count; 883 ctx->count += count;
896 ctx->to = from + count; 884 ctx->to = from + count;
897 } 885 }
898 886
899 #define DIRECT_FRAGMENT ((inode->i_size + uspi 887 #define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
900 888
901 static void ufs_trunc_direct(struct inode *ino 889 static void ufs_trunc_direct(struct inode *inode)
902 { 890 {
903 struct ufs_inode_info *ufsi = UFS_I(in 891 struct ufs_inode_info *ufsi = UFS_I(inode);
904 struct super_block * sb; 892 struct super_block * sb;
905 struct ufs_sb_private_info * uspi; 893 struct ufs_sb_private_info * uspi;
906 void *p; 894 void *p;
907 u64 frag1, frag2, frag3, frag4, block1 895 u64 frag1, frag2, frag3, frag4, block1, block2;
908 struct to_free ctx = {.inode = inode}; 896 struct to_free ctx = {.inode = inode};
909 unsigned i, tmp; 897 unsigned i, tmp;
910 898
911 UFSD("ENTER: ino %lu\n", inode->i_ino) 899 UFSD("ENTER: ino %lu\n", inode->i_ino);
912 900
913 sb = inode->i_sb; 901 sb = inode->i_sb;
914 uspi = UFS_SB(sb)->s_uspi; 902 uspi = UFS_SB(sb)->s_uspi;
915 903
916 frag1 = DIRECT_FRAGMENT; 904 frag1 = DIRECT_FRAGMENT;
917 frag4 = min_t(u64, UFS_NDIR_FRAGMENT, 905 frag4 = min_t(u64, UFS_NDIR_FRAGMENT, ufsi->i_lastfrag);
918 frag2 = ((frag1 & uspi->s_fpbmask) ? ( 906 frag2 = ((frag1 & uspi->s_fpbmask) ? ((frag1 | uspi->s_fpbmask) + 1) : frag1);
919 frag3 = frag4 & ~uspi->s_fpbmask; 907 frag3 = frag4 & ~uspi->s_fpbmask;
920 block1 = block2 = 0; 908 block1 = block2 = 0;
921 if (frag2 > frag3) { 909 if (frag2 > frag3) {
922 frag2 = frag4; 910 frag2 = frag4;
923 frag3 = frag4 = 0; 911 frag3 = frag4 = 0;
924 } else if (frag2 < frag3) { 912 } else if (frag2 < frag3) {
925 block1 = ufs_fragstoblks (frag 913 block1 = ufs_fragstoblks (frag2);
926 block2 = ufs_fragstoblks (frag 914 block2 = ufs_fragstoblks (frag3);
927 } 915 }
928 916
929 UFSD("ino %lu, frag1 %llu, frag2 %llu, 917 UFSD("ino %lu, frag1 %llu, frag2 %llu, block1 %llu, block2 %llu,"
930 " frag3 %llu, frag4 %llu\n", inod 918 " frag3 %llu, frag4 %llu\n", inode->i_ino,
931 (unsigned long long)frag1, (unsig 919 (unsigned long long)frag1, (unsigned long long)frag2,
932 (unsigned long long)block1, (unsi 920 (unsigned long long)block1, (unsigned long long)block2,
933 (unsigned long long)frag3, (unsig 921 (unsigned long long)frag3, (unsigned long long)frag4);
934 922
935 if (frag1 >= frag2) 923 if (frag1 >= frag2)
936 goto next1; 924 goto next1;
937 925
938 /* 926 /*
939 * Free first free fragments 927 * Free first free fragments
940 */ 928 */
941 p = ufs_get_direct_data_ptr(uspi, ufsi 929 p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag1));
942 tmp = ufs_data_ptr_to_cpu(sb, p); 930 tmp = ufs_data_ptr_to_cpu(sb, p);
943 if (!tmp ) 931 if (!tmp )
944 ufs_panic (sb, "ufs_trunc_dire 932 ufs_panic (sb, "ufs_trunc_direct", "internal error");
945 frag2 -= frag1; 933 frag2 -= frag1;
946 frag1 = ufs_fragnum (frag1); 934 frag1 = ufs_fragnum (frag1);
947 935
948 ufs_free_fragments(inode, tmp + frag1, 936 ufs_free_fragments(inode, tmp + frag1, frag2);
949 937
950 next1: 938 next1:
951 /* 939 /*
952 * Free whole blocks 940 * Free whole blocks
953 */ 941 */
954 for (i = block1 ; i < block2; i++) { 942 for (i = block1 ; i < block2; i++) {
955 p = ufs_get_direct_data_ptr(us 943 p = ufs_get_direct_data_ptr(uspi, ufsi, i);
956 tmp = ufs_data_ptr_to_cpu(sb, 944 tmp = ufs_data_ptr_to_cpu(sb, p);
957 if (!tmp) 945 if (!tmp)
958 continue; 946 continue;
959 write_seqlock(&ufsi->meta_lock 947 write_seqlock(&ufsi->meta_lock);
960 ufs_data_ptr_clear(uspi, p); 948 ufs_data_ptr_clear(uspi, p);
961 write_sequnlock(&ufsi->meta_lo 949 write_sequnlock(&ufsi->meta_lock);
962 950
963 free_data(&ctx, tmp, uspi->s_f 951 free_data(&ctx, tmp, uspi->s_fpb);
964 } 952 }
965 953
966 free_data(&ctx, 0, 0); 954 free_data(&ctx, 0, 0);
967 955
968 if (frag3 >= frag4) 956 if (frag3 >= frag4)
969 goto next3; 957 goto next3;
970 958
971 /* 959 /*
972 * Free last free fragments 960 * Free last free fragments
973 */ 961 */
974 p = ufs_get_direct_data_ptr(uspi, ufsi 962 p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag3));
975 tmp = ufs_data_ptr_to_cpu(sb, p); 963 tmp = ufs_data_ptr_to_cpu(sb, p);
976 if (!tmp ) 964 if (!tmp )
977 ufs_panic(sb, "ufs_truncate_di 965 ufs_panic(sb, "ufs_truncate_direct", "internal error");
978 frag4 = ufs_fragnum (frag4); 966 frag4 = ufs_fragnum (frag4);
979 write_seqlock(&ufsi->meta_lock); 967 write_seqlock(&ufsi->meta_lock);
980 ufs_data_ptr_clear(uspi, p); 968 ufs_data_ptr_clear(uspi, p);
981 write_sequnlock(&ufsi->meta_lock); 969 write_sequnlock(&ufsi->meta_lock);
982 970
983 ufs_free_fragments (inode, tmp, frag4) 971 ufs_free_fragments (inode, tmp, frag4);
984 next3: 972 next3:
985 973
986 UFSD("EXIT: ino %lu\n", inode->i_ino); 974 UFSD("EXIT: ino %lu\n", inode->i_ino);
987 } 975 }
988 976
989 static void free_full_branch(struct inode *ino 977 static void free_full_branch(struct inode *inode, u64 ind_block, int depth)
990 { 978 {
991 struct super_block *sb = inode->i_sb; 979 struct super_block *sb = inode->i_sb;
992 struct ufs_sb_private_info *uspi = UFS 980 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
993 struct ufs_buffer_head *ubh = ubh_brea 981 struct ufs_buffer_head *ubh = ubh_bread(sb, ind_block, uspi->s_bsize);
994 unsigned i; 982 unsigned i;
995 983
996 if (!ubh) 984 if (!ubh)
997 return; 985 return;
998 986
999 if (--depth) { 987 if (--depth) {
1000 for (i = 0; i < uspi->s_apb; 988 for (i = 0; i < uspi->s_apb; i++) {
1001 void *p = ubh_get_dat 989 void *p = ubh_get_data_ptr(uspi, ubh, i);
1002 u64 block = ufs_data_ 990 u64 block = ufs_data_ptr_to_cpu(sb, p);
1003 if (block) 991 if (block)
1004 free_full_bra 992 free_full_branch(inode, block, depth);
1005 } 993 }
1006 } else { 994 } else {
1007 struct to_free ctx = {.inode 995 struct to_free ctx = {.inode = inode};
1008 996
1009 for (i = 0; i < uspi->s_apb; 997 for (i = 0; i < uspi->s_apb; i++) {
1010 void *p = ubh_get_dat 998 void *p = ubh_get_data_ptr(uspi, ubh, i);
1011 u64 block = ufs_data_ 999 u64 block = ufs_data_ptr_to_cpu(sb, p);
1012 if (block) 1000 if (block)
1013 free_data(&ct 1001 free_data(&ctx, block, uspi->s_fpb);
1014 } 1002 }
1015 free_data(&ctx, 0, 0); 1003 free_data(&ctx, 0, 0);
1016 } 1004 }
1017 1005
1018 ubh_bforget(ubh); 1006 ubh_bforget(ubh);
1019 ufs_free_blocks(inode, ind_block, usp 1007 ufs_free_blocks(inode, ind_block, uspi->s_fpb);
1020 } 1008 }
1021 1009
1022 static void free_branch_tail(struct inode *in 1010 static void free_branch_tail(struct inode *inode, unsigned from, struct ufs_buffer_head *ubh, int depth)
1023 { 1011 {
1024 struct super_block *sb = inode->i_sb; 1012 struct super_block *sb = inode->i_sb;
1025 struct ufs_sb_private_info *uspi = UF 1013 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1026 unsigned i; 1014 unsigned i;
1027 1015
1028 if (--depth) { 1016 if (--depth) {
1029 for (i = from; i < uspi->s_ap 1017 for (i = from; i < uspi->s_apb ; i++) {
1030 void *p = ubh_get_dat 1018 void *p = ubh_get_data_ptr(uspi, ubh, i);
1031 u64 block = ufs_data_ 1019 u64 block = ufs_data_ptr_to_cpu(sb, p);
1032 if (block) { 1020 if (block) {
1033 write_seqlock 1021 write_seqlock(&UFS_I(inode)->meta_lock);
1034 ufs_data_ptr_ 1022 ufs_data_ptr_clear(uspi, p);
1035 write_sequnlo 1023 write_sequnlock(&UFS_I(inode)->meta_lock);
1036 ubh_mark_buff 1024 ubh_mark_buffer_dirty(ubh);
1037 free_full_bra 1025 free_full_branch(inode, block, depth);
1038 } 1026 }
1039 } 1027 }
1040 } else { 1028 } else {
1041 struct to_free ctx = {.inode 1029 struct to_free ctx = {.inode = inode};
1042 1030
1043 for (i = from; i < uspi->s_ap 1031 for (i = from; i < uspi->s_apb; i++) {
1044 void *p = ubh_get_dat 1032 void *p = ubh_get_data_ptr(uspi, ubh, i);
1045 u64 block = ufs_data_ 1033 u64 block = ufs_data_ptr_to_cpu(sb, p);
1046 if (block) { 1034 if (block) {
1047 write_seqlock 1035 write_seqlock(&UFS_I(inode)->meta_lock);
1048 ufs_data_ptr_ 1036 ufs_data_ptr_clear(uspi, p);
1049 write_sequnlo 1037 write_sequnlock(&UFS_I(inode)->meta_lock);
1050 ubh_mark_buff 1038 ubh_mark_buffer_dirty(ubh);
1051 free_data(&ct 1039 free_data(&ctx, block, uspi->s_fpb);
1052 } 1040 }
1053 } 1041 }
1054 free_data(&ctx, 0, 0); 1042 free_data(&ctx, 0, 0);
1055 } 1043 }
1056 if (IS_SYNC(inode) && ubh_buffer_dirt 1044 if (IS_SYNC(inode) && ubh_buffer_dirty(ubh))
1057 ubh_sync_block(ubh); 1045 ubh_sync_block(ubh);
1058 ubh_brelse(ubh); 1046 ubh_brelse(ubh);
1059 } 1047 }
1060 1048
1061 static int ufs_alloc_lastblock(struct inode * 1049 static int ufs_alloc_lastblock(struct inode *inode, loff_t size)
1062 { 1050 {
1063 int err = 0; 1051 int err = 0;
1064 struct super_block *sb = inode->i_sb; 1052 struct super_block *sb = inode->i_sb;
1065 struct address_space *mapping = inode 1053 struct address_space *mapping = inode->i_mapping;
1066 struct ufs_sb_private_info *uspi = UF 1054 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1067 unsigned i, end; 1055 unsigned i, end;
1068 sector_t lastfrag; 1056 sector_t lastfrag;
1069 struct folio *folio; !! 1057 struct page *lastpage;
1070 struct buffer_head *bh; 1058 struct buffer_head *bh;
1071 u64 phys64; 1059 u64 phys64;
1072 1060
1073 lastfrag = (size + uspi->s_fsize - 1) 1061 lastfrag = (size + uspi->s_fsize - 1) >> uspi->s_fshift;
1074 1062
1075 if (!lastfrag) 1063 if (!lastfrag)
1076 goto out; 1064 goto out;
1077 1065
1078 lastfrag--; 1066 lastfrag--;
1079 1067
1080 folio = ufs_get_locked_folio(mapping, !! 1068 lastpage = ufs_get_locked_page(mapping, lastfrag >>
1081 (PAGE_ 1069 (PAGE_SHIFT - inode->i_blkbits));
1082 if (IS_ERR(folio)) { !! 1070 if (IS_ERR(lastpage)) {
1083 err = -EIO; !! 1071 err = -EIO;
1084 goto out; !! 1072 goto out;
1085 } !! 1073 }
>> 1074
>> 1075 end = lastfrag & ((1 << (PAGE_SHIFT - inode->i_blkbits)) - 1);
>> 1076 bh = page_buffers(lastpage);
>> 1077 for (i = 0; i < end; ++i)
>> 1078 bh = bh->b_this_page;
1086 1079
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 1080
1092 err = ufs_getfrag_block(inode, lastfra 1081 err = ufs_getfrag_block(inode, lastfrag, bh, 1);
1093 1082
1094 if (unlikely(err)) 1083 if (unlikely(err))
1095 goto out_unlock; 1084 goto out_unlock;
1096 1085
1097 if (buffer_new(bh)) { 1086 if (buffer_new(bh)) {
1098 clear_buffer_new(bh); 1087 clear_buffer_new(bh);
1099 clean_bdev_bh_alias(bh); 1088 clean_bdev_bh_alias(bh);
1100 /* 1089 /*
1101 * we do not zeroize fragment, 1090 * we do not zeroize fragment, because of
1102 * if it maped to hole, it alr 1091 * if it maped to hole, it already contains zeroes
1103 */ 1092 */
1104 set_buffer_uptodate(bh); 1093 set_buffer_uptodate(bh);
1105 mark_buffer_dirty(bh); 1094 mark_buffer_dirty(bh);
1106 folio_mark_dirty(folio); !! 1095 set_page_dirty(lastpage);
1107 } 1096 }
1108 1097
1109 if (lastfrag >= UFS_IND_FRAGMENT) { 1098 if (lastfrag >= UFS_IND_FRAGMENT) {
1110 end = uspi->s_fpb - ufs_fragnu 1099 end = uspi->s_fpb - ufs_fragnum(lastfrag) - 1;
1111 phys64 = bh->b_blocknr + 1; 1100 phys64 = bh->b_blocknr + 1;
1112 for (i = 0; i < end; ++i) { 1101 for (i = 0; i < end; ++i) {
1113 bh = sb_getblk(sb, i + 1102 bh = sb_getblk(sb, i + phys64);
1114 lock_buffer(bh); 1103 lock_buffer(bh);
1115 memset(bh->b_data, 0, 1104 memset(bh->b_data, 0, sb->s_blocksize);
1116 set_buffer_uptodate(bh 1105 set_buffer_uptodate(bh);
1117 mark_buffer_dirty(bh); 1106 mark_buffer_dirty(bh);
1118 unlock_buffer(bh); 1107 unlock_buffer(bh);
1119 sync_dirty_buffer(bh); 1108 sync_dirty_buffer(bh);
1120 brelse(bh); 1109 brelse(bh);
1121 } 1110 }
1122 } 1111 }
1123 out_unlock: 1112 out_unlock:
1124 ufs_put_locked_folio(folio); !! 1113 ufs_put_locked_page(lastpage);
1125 out: 1114 out:
1126 return err; 1115 return err;
1127 } 1116 }
1128 1117
1129 static void ufs_truncate_blocks(struct inode 1118 static void ufs_truncate_blocks(struct inode *inode)
1130 { 1119 {
1131 struct ufs_inode_info *ufsi = UFS_I(i 1120 struct ufs_inode_info *ufsi = UFS_I(inode);
1132 struct super_block *sb = inode->i_sb; 1121 struct super_block *sb = inode->i_sb;
1133 struct ufs_sb_private_info *uspi = UF 1122 struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
1134 unsigned offsets[4]; 1123 unsigned offsets[4];
1135 int depth; 1124 int depth;
1136 int depth2; 1125 int depth2;
1137 unsigned i; 1126 unsigned i;
1138 struct ufs_buffer_head *ubh[3]; 1127 struct ufs_buffer_head *ubh[3];
1139 void *p; 1128 void *p;
1140 u64 block; 1129 u64 block;
1141 1130
1142 if (inode->i_size) { 1131 if (inode->i_size) {
1143 sector_t last = (inode->i_siz 1132 sector_t last = (inode->i_size - 1) >> uspi->s_bshift;
1144 depth = ufs_block_to_path(ino 1133 depth = ufs_block_to_path(inode, last, offsets);
1145 if (!depth) 1134 if (!depth)
1146 return; 1135 return;
1147 } else { 1136 } else {
1148 depth = 1; 1137 depth = 1;
1149 } 1138 }
1150 1139
1151 for (depth2 = depth - 1; depth2; dept 1140 for (depth2 = depth - 1; depth2; depth2--)
1152 if (offsets[depth2] != uspi-> 1141 if (offsets[depth2] != uspi->s_apb - 1)
1153 break; 1142 break;
1154 1143
1155 mutex_lock(&ufsi->truncate_mutex); 1144 mutex_lock(&ufsi->truncate_mutex);
1156 if (depth == 1) { 1145 if (depth == 1) {
1157 ufs_trunc_direct(inode); 1146 ufs_trunc_direct(inode);
1158 offsets[0] = UFS_IND_BLOCK; 1147 offsets[0] = UFS_IND_BLOCK;
1159 } else { 1148 } else {
1160 /* get the blocks that should 1149 /* get the blocks that should be partially emptied */
1161 p = ufs_get_direct_data_ptr(u 1150 p = ufs_get_direct_data_ptr(uspi, ufsi, offsets[0]++);
1162 for (i = 0; i < depth2; i++) 1151 for (i = 0; i < depth2; i++) {
1163 block = ufs_data_ptr_ 1152 block = ufs_data_ptr_to_cpu(sb, p);
1164 if (!block) 1153 if (!block)
1165 break; 1154 break;
1166 ubh[i] = ubh_bread(sb 1155 ubh[i] = ubh_bread(sb, block, uspi->s_bsize);
1167 if (!ubh[i]) { 1156 if (!ubh[i]) {
1168 write_seqlock 1157 write_seqlock(&ufsi->meta_lock);
1169 ufs_data_ptr_ 1158 ufs_data_ptr_clear(uspi, p);
1170 write_sequnlo 1159 write_sequnlock(&ufsi->meta_lock);
1171 break; 1160 break;
1172 } 1161 }
1173 p = ubh_get_data_ptr( 1162 p = ubh_get_data_ptr(uspi, ubh[i], offsets[i + 1]++);
1174 } 1163 }
1175 while (i--) 1164 while (i--)
1176 free_branch_tail(inod 1165 free_branch_tail(inode, offsets[i + 1], ubh[i], depth - i - 1);
1177 } 1166 }
1178 for (i = offsets[0]; i <= UFS_TIND_BL 1167 for (i = offsets[0]; i <= UFS_TIND_BLOCK; i++) {
1179 p = ufs_get_direct_data_ptr(u 1168 p = ufs_get_direct_data_ptr(uspi, ufsi, i);
1180 block = ufs_data_ptr_to_cpu(s 1169 block = ufs_data_ptr_to_cpu(sb, p);
1181 if (block) { 1170 if (block) {
1182 write_seqlock(&ufsi-> 1171 write_seqlock(&ufsi->meta_lock);
1183 ufs_data_ptr_clear(us 1172 ufs_data_ptr_clear(uspi, p);
1184 write_sequnlock(&ufsi 1173 write_sequnlock(&ufsi->meta_lock);
1185 free_full_branch(inod 1174 free_full_branch(inode, block, i - UFS_IND_BLOCK + 1);
1186 } 1175 }
1187 } 1176 }
1188 read_seqlock_excl(&ufsi->meta_lock); 1177 read_seqlock_excl(&ufsi->meta_lock);
1189 ufsi->i_lastfrag = DIRECT_FRAGMENT; 1178 ufsi->i_lastfrag = DIRECT_FRAGMENT;
1190 read_sequnlock_excl(&ufsi->meta_lock) 1179 read_sequnlock_excl(&ufsi->meta_lock);
1191 mark_inode_dirty(inode); 1180 mark_inode_dirty(inode);
1192 mutex_unlock(&ufsi->truncate_mutex); 1181 mutex_unlock(&ufsi->truncate_mutex);
1193 } 1182 }
1194 1183
1195 static int ufs_truncate(struct inode *inode, 1184 static int ufs_truncate(struct inode *inode, loff_t size)
1196 { 1185 {
1197 int err = 0; 1186 int err = 0;
1198 1187
1199 UFSD("ENTER: ino %lu, i_size: %llu, o 1188 UFSD("ENTER: ino %lu, i_size: %llu, old_i_size: %llu\n",
1200 inode->i_ino, (unsigned long lon 1189 inode->i_ino, (unsigned long long)size,
1201 (unsigned long long)i_size_read( 1190 (unsigned long long)i_size_read(inode));
1202 1191
1203 if (!(S_ISREG(inode->i_mode) || S_ISD 1192 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
1204 S_ISLNK(inode->i_mode))) 1193 S_ISLNK(inode->i_mode)))
1205 return -EINVAL; 1194 return -EINVAL;
1206 if (IS_APPEND(inode) || IS_IMMUTABLE( 1195 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
1207 return -EPERM; 1196 return -EPERM;
1208 1197
1209 err = ufs_alloc_lastblock(inode, size 1198 err = ufs_alloc_lastblock(inode, size);
1210 1199
1211 if (err) 1200 if (err)
1212 goto out; 1201 goto out;
1213 1202
1214 block_truncate_page(inode->i_mapping, 1203 block_truncate_page(inode->i_mapping, size, ufs_getfrag_block);
1215 1204
1216 truncate_setsize(inode, size); 1205 truncate_setsize(inode, size);
1217 1206
1218 ufs_truncate_blocks(inode); 1207 ufs_truncate_blocks(inode);
1219 inode_set_mtime_to_ts(inode, inode_se !! 1208 inode->i_mtime = inode->i_ctime = current_time(inode);
1220 mark_inode_dirty(inode); 1209 mark_inode_dirty(inode);
1221 out: 1210 out:
1222 UFSD("EXIT: err %d\n", err); 1211 UFSD("EXIT: err %d\n", err);
1223 return err; 1212 return err;
1224 } 1213 }
1225 1214
1226 int ufs_setattr(struct mnt_idmap *idmap, stru !! 1215 int ufs_setattr(struct user_namespace *mnt_userns, struct dentry *dentry,
1227 struct iattr *attr) 1216 struct iattr *attr)
1228 { 1217 {
1229 struct inode *inode = d_inode(dentry) 1218 struct inode *inode = d_inode(dentry);
1230 unsigned int ia_valid = attr->ia_vali 1219 unsigned int ia_valid = attr->ia_valid;
1231 int error; 1220 int error;
1232 1221
1233 error = setattr_prepare(&nop_mnt_idma !! 1222 error = setattr_prepare(&init_user_ns, dentry, attr);
1234 if (error) 1223 if (error)
1235 return error; 1224 return error;
1236 1225
1237 if (ia_valid & ATTR_SIZE && attr->ia_ 1226 if (ia_valid & ATTR_SIZE && attr->ia_size != inode->i_size) {
1238 error = ufs_truncate(inode, a 1227 error = ufs_truncate(inode, attr->ia_size);
1239 if (error) 1228 if (error)
1240 return error; 1229 return error;
1241 } 1230 }
1242 1231
1243 setattr_copy(&nop_mnt_idmap, inode, a !! 1232 setattr_copy(&init_user_ns, inode, attr);
1244 mark_inode_dirty(inode); 1233 mark_inode_dirty(inode);
1245 return 0; 1234 return 0;
1246 } 1235 }
1247 1236
1248 const struct inode_operations ufs_file_inode_ 1237 const struct inode_operations ufs_file_inode_operations = {
1249 .setattr = ufs_setattr, 1238 .setattr = ufs_setattr,
1250 }; 1239 };
1251 1240
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