aboutsummaryrefslogtreecommitdiffstats
path: root/fs/reiserfs/stree.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-03-30 15:29:21 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2009-03-30 15:33:01 -0400
commite1c502482853f84606928f5a2f2eb6da1993cda1 (patch)
treeca296007164906342a195bdf3a5305277e6af5da /fs/reiserfs/stree.c
parent019abbc87025a030fd25008612afd4eff8a375f7 (diff)
parentee93961be1faddf9e9a638bc519145c20f0cfeba (diff)
Merge branch 'reiserfs-updates' from Jeff Mahoney
* reiserfs-updates: (35 commits) reiserfs: rename [cn]_* variables reiserfs: rename p_._ variables reiserfs: rename p_s_tb to tb reiserfs: rename p_s_inode to inode reiserfs: rename p_s_bh to bh reiserfs: rename p_s_sb to sb reiserfs: strip trailing whitespace reiserfs: cleanup path functions reiserfs: factor out buffer_info initialization reiserfs: add atomic addition of selinux attributes during inode creation reiserfs: use generic readdir for operations across all xattrs reiserfs: journaled xattrs reiserfs: use generic xattr handlers reiserfs: remove i_has_xattr_dir reiserfs: make per-inode xattr locking more fine grained reiserfs: eliminate per-super xattr lock reiserfs: simplify xattr internal file lookups/opens reiserfs: Clean up xattrs when REISERFS_FS_XATTR is unset reiserfs: remove IS_PRIVATE helpers reiserfs: remove link detection code ... Fixed up conflicts manually due to: - quota name cleanups vs variable naming changes: fs/reiserfs/inode.c fs/reiserfs/namei.c fs/reiserfs/stree.c fs/reiserfs/xattr.c - exported include header cleanups include/linux/reiserfs_fs.h
Diffstat (limited to 'fs/reiserfs/stree.c')
-rw-r--r--fs/reiserfs/stree.c1168
1 files changed, 566 insertions, 602 deletions
diff --git a/fs/reiserfs/stree.c b/fs/reiserfs/stree.c
index 73aaa33f673..d036ee5b1c8 100644
--- a/fs/reiserfs/stree.c
+++ b/fs/reiserfs/stree.c
@@ -23,7 +23,6 @@
23 * get_rkey 23 * get_rkey
24 * key_in_buffer 24 * key_in_buffer
25 * decrement_bcount 25 * decrement_bcount
26 * decrement_counters_in_path
27 * reiserfs_check_path 26 * reiserfs_check_path
28 * pathrelse_and_restore 27 * pathrelse_and_restore
29 * pathrelse 28 * pathrelse
@@ -57,28 +56,28 @@
57#include <linux/quotaops.h> 56#include <linux/quotaops.h>
58 57
59/* Does the buffer contain a disk block which is in the tree. */ 58/* Does the buffer contain a disk block which is in the tree. */
60inline int B_IS_IN_TREE(const struct buffer_head *p_s_bh) 59inline int B_IS_IN_TREE(const struct buffer_head *bh)
61{ 60{
62 61
63 RFALSE(B_LEVEL(p_s_bh) > MAX_HEIGHT, 62 RFALSE(B_LEVEL(bh) > MAX_HEIGHT,
64 "PAP-1010: block (%b) has too big level (%z)", p_s_bh, p_s_bh); 63 "PAP-1010: block (%b) has too big level (%z)", bh, bh);
65 64
66 return (B_LEVEL(p_s_bh) != FREE_LEVEL); 65 return (B_LEVEL(bh) != FREE_LEVEL);
67} 66}
68 67
69// 68//
70// to gets item head in le form 69// to gets item head in le form
71// 70//
72inline void copy_item_head(struct item_head *p_v_to, 71inline void copy_item_head(struct item_head *to,
73 const struct item_head *p_v_from) 72 const struct item_head *from)
74{ 73{
75 memcpy(p_v_to, p_v_from, IH_SIZE); 74 memcpy(to, from, IH_SIZE);
76} 75}
77 76
78/* k1 is pointer to on-disk structure which is stored in little-endian 77/* k1 is pointer to on-disk structure which is stored in little-endian
79 form. k2 is pointer to cpu variable. For key of items of the same 78 form. k2 is pointer to cpu variable. For key of items of the same
80 object this returns 0. 79 object this returns 0.
81 Returns: -1 if key1 < key2 80 Returns: -1 if key1 < key2
82 0 if key1 == key2 81 0 if key1 == key2
83 1 if key1 > key2 */ 82 1 if key1 > key2 */
84inline int comp_short_keys(const struct reiserfs_key *le_key, 83inline int comp_short_keys(const struct reiserfs_key *le_key,
@@ -136,15 +135,15 @@ static inline int comp_keys(const struct reiserfs_key *le_key,
136inline int comp_short_le_keys(const struct reiserfs_key *key1, 135inline int comp_short_le_keys(const struct reiserfs_key *key1,
137 const struct reiserfs_key *key2) 136 const struct reiserfs_key *key2)
138{ 137{
139 __u32 *p_s_1_u32, *p_s_2_u32; 138 __u32 *k1_u32, *k2_u32;
140 int n_key_length = REISERFS_SHORT_KEY_LEN; 139 int key_length = REISERFS_SHORT_KEY_LEN;
141 140
142 p_s_1_u32 = (__u32 *) key1; 141 k1_u32 = (__u32 *) key1;
143 p_s_2_u32 = (__u32 *) key2; 142 k2_u32 = (__u32 *) key2;
144 for (; n_key_length--; ++p_s_1_u32, ++p_s_2_u32) { 143 for (; key_length--; ++k1_u32, ++k2_u32) {
145 if (le32_to_cpu(*p_s_1_u32) < le32_to_cpu(*p_s_2_u32)) 144 if (le32_to_cpu(*k1_u32) < le32_to_cpu(*k2_u32))
146 return -1; 145 return -1;
147 if (le32_to_cpu(*p_s_1_u32) > le32_to_cpu(*p_s_2_u32)) 146 if (le32_to_cpu(*k1_u32) > le32_to_cpu(*k2_u32))
148 return 1; 147 return 1;
149 } 148 }
150 return 0; 149 return 0;
@@ -175,52 +174,51 @@ inline int comp_le_keys(const struct reiserfs_key *k1,
175 * Binary search toolkit function * 174 * Binary search toolkit function *
176 * Search for an item in the array by the item key * 175 * Search for an item in the array by the item key *
177 * Returns: 1 if found, 0 if not found; * 176 * Returns: 1 if found, 0 if not found; *
178 * *p_n_pos = number of the searched element if found, else the * 177 * *pos = number of the searched element if found, else the *
179 * number of the first element that is larger than p_v_key. * 178 * number of the first element that is larger than key. *
180 **************************************************************************/ 179 **************************************************************************/
181/* For those not familiar with binary search: n_lbound is the leftmost item that it 180/* For those not familiar with binary search: lbound is the leftmost item that it
182 could be, n_rbound the rightmost item that it could be. We examine the item 181 could be, rbound the rightmost item that it could be. We examine the item
183 halfway between n_lbound and n_rbound, and that tells us either that we can increase 182 halfway between lbound and rbound, and that tells us either that we can increase
184 n_lbound, or decrease n_rbound, or that we have found it, or if n_lbound <= n_rbound that 183 lbound, or decrease rbound, or that we have found it, or if lbound <= rbound that
185 there are no possible items, and we have not found it. With each examination we 184 there are no possible items, and we have not found it. With each examination we
186 cut the number of possible items it could be by one more than half rounded down, 185 cut the number of possible items it could be by one more than half rounded down,
187 or we find it. */ 186 or we find it. */
188static inline int bin_search(const void *p_v_key, /* Key to search for. */ 187static inline int bin_search(const void *key, /* Key to search for. */
189 const void *p_v_base, /* First item in the array. */ 188 const void *base, /* First item in the array. */
190 int p_n_num, /* Number of items in the array. */ 189 int num, /* Number of items in the array. */
191 int p_n_width, /* Item size in the array. 190 int width, /* Item size in the array.
192 searched. Lest the reader be 191 searched. Lest the reader be
193 confused, note that this is crafted 192 confused, note that this is crafted
194 as a general function, and when it 193 as a general function, and when it
195 is applied specifically to the array 194 is applied specifically to the array
196 of item headers in a node, p_n_width 195 of item headers in a node, width
197 is actually the item header size not 196 is actually the item header size not
198 the item size. */ 197 the item size. */
199 int *p_n_pos /* Number of the searched for element. */ 198 int *pos /* Number of the searched for element. */
200 ) 199 )
201{ 200{
202 int n_rbound, n_lbound, n_j; 201 int rbound, lbound, j;
203 202
204 for (n_j = ((n_rbound = p_n_num - 1) + (n_lbound = 0)) / 2; 203 for (j = ((rbound = num - 1) + (lbound = 0)) / 2;
205 n_lbound <= n_rbound; n_j = (n_rbound + n_lbound) / 2) 204 lbound <= rbound; j = (rbound + lbound) / 2)
206 switch (comp_keys 205 switch (comp_keys
207 ((struct reiserfs_key *)((char *)p_v_base + 206 ((struct reiserfs_key *)((char *)base + j * width),
208 n_j * p_n_width), 207 (struct cpu_key *)key)) {
209 (struct cpu_key *)p_v_key)) {
210 case -1: 208 case -1:
211 n_lbound = n_j + 1; 209 lbound = j + 1;
212 continue; 210 continue;
213 case 1: 211 case 1:
214 n_rbound = n_j - 1; 212 rbound = j - 1;
215 continue; 213 continue;
216 case 0: 214 case 0:
217 *p_n_pos = n_j; 215 *pos = j;
218 return ITEM_FOUND; /* Key found in the array. */ 216 return ITEM_FOUND; /* Key found in the array. */
219 } 217 }
220 218
221 /* bin_search did not find given key, it returns position of key, 219 /* bin_search did not find given key, it returns position of key,
222 that is minimal and greater than the given one. */ 220 that is minimal and greater than the given one. */
223 *p_n_pos = n_lbound; 221 *pos = lbound;
224 return ITEM_NOT_FOUND; 222 return ITEM_NOT_FOUND;
225} 223}
226 224
@@ -243,90 +241,88 @@ static const struct reiserfs_key MAX_KEY = {
243 of the path, and going upwards. We must check the path's validity at each step. If the key is not in 241 of the path, and going upwards. We must check the path's validity at each step. If the key is not in
244 the path, there is no delimiting key in the tree (buffer is first or last buffer in tree), and in this 242 the path, there is no delimiting key in the tree (buffer is first or last buffer in tree), and in this
245 case we return a special key, either MIN_KEY or MAX_KEY. */ 243 case we return a special key, either MIN_KEY or MAX_KEY. */
246static inline const struct reiserfs_key *get_lkey(const struct treepath 244static inline const struct reiserfs_key *get_lkey(const struct treepath *chk_path,
247 *p_s_chk_path, 245 const struct super_block *sb)
248 const struct super_block
249 *p_s_sb)
250{ 246{
251 int n_position, n_path_offset = p_s_chk_path->path_length; 247 int position, path_offset = chk_path->path_length;
252 struct buffer_head *p_s_parent; 248 struct buffer_head *parent;
253 249
254 RFALSE(n_path_offset < FIRST_PATH_ELEMENT_OFFSET, 250 RFALSE(path_offset < FIRST_PATH_ELEMENT_OFFSET,
255 "PAP-5010: invalid offset in the path"); 251 "PAP-5010: invalid offset in the path");
256 252
257 /* While not higher in path than first element. */ 253 /* While not higher in path than first element. */
258 while (n_path_offset-- > FIRST_PATH_ELEMENT_OFFSET) { 254 while (path_offset-- > FIRST_PATH_ELEMENT_OFFSET) {
259 255
260 RFALSE(!buffer_uptodate 256 RFALSE(!buffer_uptodate
261 (PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)), 257 (PATH_OFFSET_PBUFFER(chk_path, path_offset)),
262 "PAP-5020: parent is not uptodate"); 258 "PAP-5020: parent is not uptodate");
263 259
264 /* Parent at the path is not in the tree now. */ 260 /* Parent at the path is not in the tree now. */
265 if (!B_IS_IN_TREE 261 if (!B_IS_IN_TREE
266 (p_s_parent = 262 (parent =
267 PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset))) 263 PATH_OFFSET_PBUFFER(chk_path, path_offset)))
268 return &MAX_KEY; 264 return &MAX_KEY;
269 /* Check whether position in the parent is correct. */ 265 /* Check whether position in the parent is correct. */
270 if ((n_position = 266 if ((position =
271 PATH_OFFSET_POSITION(p_s_chk_path, 267 PATH_OFFSET_POSITION(chk_path,
272 n_path_offset)) > 268 path_offset)) >
273 B_NR_ITEMS(p_s_parent)) 269 B_NR_ITEMS(parent))
274 return &MAX_KEY; 270 return &MAX_KEY;
275 /* Check whether parent at the path really points to the child. */ 271 /* Check whether parent at the path really points to the child. */
276 if (B_N_CHILD_NUM(p_s_parent, n_position) != 272 if (B_N_CHILD_NUM(parent, position) !=
277 PATH_OFFSET_PBUFFER(p_s_chk_path, 273 PATH_OFFSET_PBUFFER(chk_path,
278 n_path_offset + 1)->b_blocknr) 274 path_offset + 1)->b_blocknr)
279 return &MAX_KEY; 275 return &MAX_KEY;
280 /* Return delimiting key if position in the parent is not equal to zero. */ 276 /* Return delimiting key if position in the parent is not equal to zero. */
281 if (n_position) 277 if (position)
282 return B_N_PDELIM_KEY(p_s_parent, n_position - 1); 278 return B_N_PDELIM_KEY(parent, position - 1);
283 } 279 }
284 /* Return MIN_KEY if we are in the root of the buffer tree. */ 280 /* Return MIN_KEY if we are in the root of the buffer tree. */
285 if (PATH_OFFSET_PBUFFER(p_s_chk_path, FIRST_PATH_ELEMENT_OFFSET)-> 281 if (PATH_OFFSET_PBUFFER(chk_path, FIRST_PATH_ELEMENT_OFFSET)->
286 b_blocknr == SB_ROOT_BLOCK(p_s_sb)) 282 b_blocknr == SB_ROOT_BLOCK(sb))
287 return &MIN_KEY; 283 return &MIN_KEY;
288 return &MAX_KEY; 284 return &MAX_KEY;
289} 285}
290 286
291/* Get delimiting key of the buffer at the path and its right neighbor. */ 287/* Get delimiting key of the buffer at the path and its right neighbor. */
292inline const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path, 288inline const struct reiserfs_key *get_rkey(const struct treepath *chk_path,
293 const struct super_block *p_s_sb) 289 const struct super_block *sb)
294{ 290{
295 int n_position, n_path_offset = p_s_chk_path->path_length; 291 int position, path_offset = chk_path->path_length;
296 struct buffer_head *p_s_parent; 292 struct buffer_head *parent;
297 293
298 RFALSE(n_path_offset < FIRST_PATH_ELEMENT_OFFSET, 294 RFALSE(path_offset < FIRST_PATH_ELEMENT_OFFSET,
299 "PAP-5030: invalid offset in the path"); 295 "PAP-5030: invalid offset in the path");
300 296
301 while (n_path_offset-- > FIRST_PATH_ELEMENT_OFFSET) { 297 while (path_offset-- > FIRST_PATH_ELEMENT_OFFSET) {
302 298
303 RFALSE(!buffer_uptodate 299 RFALSE(!buffer_uptodate
304 (PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset)), 300 (PATH_OFFSET_PBUFFER(chk_path, path_offset)),
305 "PAP-5040: parent is not uptodate"); 301 "PAP-5040: parent is not uptodate");
306 302
307 /* Parent at the path is not in the tree now. */ 303 /* Parent at the path is not in the tree now. */
308 if (!B_IS_IN_TREE 304 if (!B_IS_IN_TREE
309 (p_s_parent = 305 (parent =
310 PATH_OFFSET_PBUFFER(p_s_chk_path, n_path_offset))) 306 PATH_OFFSET_PBUFFER(chk_path, path_offset)))
311 return &MIN_KEY; 307 return &MIN_KEY;
312 /* Check whether position in the parent is correct. */ 308 /* Check whether position in the parent is correct. */
313 if ((n_position = 309 if ((position =
314 PATH_OFFSET_POSITION(p_s_chk_path, 310 PATH_OFFSET_POSITION(chk_path,
315 n_path_offset)) > 311 path_offset)) >
316 B_NR_ITEMS(p_s_parent)) 312 B_NR_ITEMS(parent))
317 return &MIN_KEY; 313 return &MIN_KEY;
318 /* Check whether parent at the path really points to the child. */ 314 /* Check whether parent at the path really points to the child. */
319 if (B_N_CHILD_NUM(p_s_parent, n_position) != 315 if (B_N_CHILD_NUM(parent, position) !=
320 PATH_OFFSET_PBUFFER(p_s_chk_path, 316 PATH_OFFSET_PBUFFER(chk_path,
321 n_path_offset + 1)->b_blocknr) 317 path_offset + 1)->b_blocknr)
322 return &MIN_KEY; 318 return &MIN_KEY;
323 /* Return delimiting key if position in the parent is not the last one. */ 319 /* Return delimiting key if position in the parent is not the last one. */
324 if (n_position != B_NR_ITEMS(p_s_parent)) 320 if (position != B_NR_ITEMS(parent))
325 return B_N_PDELIM_KEY(p_s_parent, n_position); 321 return B_N_PDELIM_KEY(parent, position);
326 } 322 }
327 /* Return MAX_KEY if we are in the root of the buffer tree. */ 323 /* Return MAX_KEY if we are in the root of the buffer tree. */
328 if (PATH_OFFSET_PBUFFER(p_s_chk_path, FIRST_PATH_ELEMENT_OFFSET)-> 324 if (PATH_OFFSET_PBUFFER(chk_path, FIRST_PATH_ELEMENT_OFFSET)->
329 b_blocknr == SB_ROOT_BLOCK(p_s_sb)) 325 b_blocknr == SB_ROOT_BLOCK(sb))
330 return &MAX_KEY; 326 return &MAX_KEY;
331 return &MIN_KEY; 327 return &MIN_KEY;
332} 328}
@@ -336,60 +332,29 @@ inline const struct reiserfs_key *get_rkey(const struct treepath *p_s_chk_path,
336 the path. These delimiting keys are stored at least one level above that buffer in the tree. If the 332 the path. These delimiting keys are stored at least one level above that buffer in the tree. If the
337 buffer is the first or last node in the tree order then one of the delimiting keys may be absent, and in 333 buffer is the first or last node in the tree order then one of the delimiting keys may be absent, and in
338 this case get_lkey and get_rkey return a special key which is MIN_KEY or MAX_KEY. */ 334 this case get_lkey and get_rkey return a special key which is MIN_KEY or MAX_KEY. */
339static inline int key_in_buffer(struct treepath *p_s_chk_path, /* Path which should be checked. */ 335static inline int key_in_buffer(struct treepath *chk_path, /* Path which should be checked. */
340 const struct cpu_key *p_s_key, /* Key which should be checked. */ 336 const struct cpu_key *key, /* Key which should be checked. */
341 struct super_block *p_s_sb /* Super block pointer. */ 337 struct super_block *sb
342 ) 338 )
343{ 339{
344 340
345 RFALSE(!p_s_key || p_s_chk_path->path_length < FIRST_PATH_ELEMENT_OFFSET 341 RFALSE(!key || chk_path->path_length < FIRST_PATH_ELEMENT_OFFSET
346 || p_s_chk_path->path_length > MAX_HEIGHT, 342 || chk_path->path_length > MAX_HEIGHT,
347 "PAP-5050: pointer to the key(%p) is NULL or invalid path length(%d)", 343 "PAP-5050: pointer to the key(%p) is NULL or invalid path length(%d)",
348 p_s_key, p_s_chk_path->path_length); 344 key, chk_path->path_length);
349 RFALSE(!PATH_PLAST_BUFFER(p_s_chk_path)->b_bdev, 345 RFALSE(!PATH_PLAST_BUFFER(chk_path)->b_bdev,
350 "PAP-5060: device must not be NODEV"); 346 "PAP-5060: device must not be NODEV");
351 347
352 if (comp_keys(get_lkey(p_s_chk_path, p_s_sb), p_s_key) == 1) 348 if (comp_keys(get_lkey(chk_path, sb), key) == 1)
353 /* left delimiting key is bigger, that the key we look for */ 349 /* left delimiting key is bigger, that the key we look for */
354 return 0; 350 return 0;
355 // if ( comp_keys(p_s_key, get_rkey(p_s_chk_path, p_s_sb)) != -1 ) 351 /* if ( comp_keys(key, get_rkey(chk_path, sb)) != -1 ) */
356 if (comp_keys(get_rkey(p_s_chk_path, p_s_sb), p_s_key) != 1) 352 if (comp_keys(get_rkey(chk_path, sb), key) != 1)
357 /* p_s_key must be less than right delimitiing key */ 353 /* key must be less than right delimitiing key */
358 return 0; 354 return 0;
359 return 1; 355 return 1;
360} 356}
361 357
362inline void decrement_bcount(struct buffer_head *p_s_bh)
363{
364 if (p_s_bh) {
365 if (atomic_read(&(p_s_bh->b_count))) {
366 put_bh(p_s_bh);
367 return;
368 }
369 reiserfs_panic(NULL,
370 "PAP-5070: decrement_bcount: trying to free free buffer %b",
371 p_s_bh);
372 }
373}
374
375/* Decrement b_count field of the all buffers in the path. */
376void decrement_counters_in_path(struct treepath *p_s_search_path)
377{
378 int n_path_offset = p_s_search_path->path_length;
379
380 RFALSE(n_path_offset < ILLEGAL_PATH_ELEMENT_OFFSET ||
381 n_path_offset > EXTENDED_MAX_HEIGHT - 1,
382 "PAP-5080: invalid path offset of %d", n_path_offset);
383
384 while (n_path_offset > ILLEGAL_PATH_ELEMENT_OFFSET) {
385 struct buffer_head *bh;
386
387 bh = PATH_OFFSET_PBUFFER(p_s_search_path, n_path_offset--);
388 decrement_bcount(bh);
389 }
390 p_s_search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
391}
392
393int reiserfs_check_path(struct treepath *p) 358int reiserfs_check_path(struct treepath *p)
394{ 359{
395 RFALSE(p->path_length != ILLEGAL_PATH_ELEMENT_OFFSET, 360 RFALSE(p->path_length != ILLEGAL_PATH_ELEMENT_OFFSET,
@@ -397,40 +362,38 @@ int reiserfs_check_path(struct treepath *p)
397 return 0; 362 return 0;
398} 363}
399 364
400/* Release all buffers in the path. Restore dirty bits clean 365/* Drop the reference to each buffer in a path and restore
401** when preparing the buffer for the log 366 * dirty bits clean when preparing the buffer for the log.
402** 367 * This version should only be called from fix_nodes() */
403** only called from fix_nodes() 368void pathrelse_and_restore(struct super_block *sb,
404*/ 369 struct treepath *search_path)
405void pathrelse_and_restore(struct super_block *s, struct treepath *p_s_search_path)
406{ 370{
407 int n_path_offset = p_s_search_path->path_length; 371 int path_offset = search_path->path_length;
408 372
409 RFALSE(n_path_offset < ILLEGAL_PATH_ELEMENT_OFFSET, 373 RFALSE(path_offset < ILLEGAL_PATH_ELEMENT_OFFSET,
410 "clm-4000: invalid path offset"); 374 "clm-4000: invalid path offset");
411 375
412 while (n_path_offset > ILLEGAL_PATH_ELEMENT_OFFSET) { 376 while (path_offset > ILLEGAL_PATH_ELEMENT_OFFSET) {
413 reiserfs_restore_prepared_buffer(s, 377 struct buffer_head *bh;
414 PATH_OFFSET_PBUFFER 378 bh = PATH_OFFSET_PBUFFER(search_path, path_offset--);
415 (p_s_search_path, 379 reiserfs_restore_prepared_buffer(sb, bh);
416 n_path_offset)); 380 brelse(bh);
417 brelse(PATH_OFFSET_PBUFFER(p_s_search_path, n_path_offset--));
418 } 381 }
419 p_s_search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET; 382 search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
420} 383}
421 384
422/* Release all buffers in the path. */ 385/* Drop the reference to each buffer in a path */
423void pathrelse(struct treepath *p_s_search_path) 386void pathrelse(struct treepath *search_path)
424{ 387{
425 int n_path_offset = p_s_search_path->path_length; 388 int path_offset = search_path->path_length;
426 389
427 RFALSE(n_path_offset < ILLEGAL_PATH_ELEMENT_OFFSET, 390 RFALSE(path_offset < ILLEGAL_PATH_ELEMENT_OFFSET,
428 "PAP-5090: invalid path offset"); 391 "PAP-5090: invalid path offset");
429 392
430 while (n_path_offset > ILLEGAL_PATH_ELEMENT_OFFSET) 393 while (path_offset > ILLEGAL_PATH_ELEMENT_OFFSET)
431 brelse(PATH_OFFSET_PBUFFER(p_s_search_path, n_path_offset--)); 394 brelse(PATH_OFFSET_PBUFFER(search_path, path_offset--));
432 395
433 p_s_search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET; 396 search_path->path_length = ILLEGAL_PATH_ELEMENT_OFFSET;
434} 397}
435 398
436static int is_leaf(char *buf, int blocksize, struct buffer_head *bh) 399static int is_leaf(char *buf, int blocksize, struct buffer_head *bh)
@@ -444,23 +407,24 @@ static int is_leaf(char *buf, int blocksize, struct buffer_head *bh)
444 407
445 blkh = (struct block_head *)buf; 408 blkh = (struct block_head *)buf;
446 if (blkh_level(blkh) != DISK_LEAF_NODE_LEVEL) { 409 if (blkh_level(blkh) != DISK_LEAF_NODE_LEVEL) {
447 reiserfs_warning(NULL, 410 reiserfs_warning(NULL, "reiserfs-5080",
448 "is_leaf: this should be caught earlier"); 411 "this should be caught earlier");
449 return 0; 412 return 0;
450 } 413 }
451 414
452 nr = blkh_nr_item(blkh); 415 nr = blkh_nr_item(blkh);
453 if (nr < 1 || nr > ((blocksize - BLKH_SIZE) / (IH_SIZE + MIN_ITEM_LEN))) { 416 if (nr < 1 || nr > ((blocksize - BLKH_SIZE) / (IH_SIZE + MIN_ITEM_LEN))) {
454 /* item number is too big or too small */ 417 /* item number is too big or too small */
455 reiserfs_warning(NULL, "is_leaf: nr_item seems wrong: %z", bh); 418 reiserfs_warning(NULL, "reiserfs-5081",
419 "nr_item seems wrong: %z", bh);
456 return 0; 420 return 0;
457 } 421 }
458 ih = (struct item_head *)(buf + BLKH_SIZE) + nr - 1; 422 ih = (struct item_head *)(buf + BLKH_SIZE) + nr - 1;
459 used_space = BLKH_SIZE + IH_SIZE * nr + (blocksize - ih_location(ih)); 423 used_space = BLKH_SIZE + IH_SIZE * nr + (blocksize - ih_location(ih));
460 if (used_space != blocksize - blkh_free_space(blkh)) { 424 if (used_space != blocksize - blkh_free_space(blkh)) {
461 /* free space does not match to calculated amount of use space */ 425 /* free space does not match to calculated amount of use space */
462 reiserfs_warning(NULL, "is_leaf: free space seems wrong: %z", 426 reiserfs_warning(NULL, "reiserfs-5082",
463 bh); 427 "free space seems wrong: %z", bh);
464 return 0; 428 return 0;
465 } 429 }
466 // FIXME: it is_leaf will hit performance too much - we may have 430 // FIXME: it is_leaf will hit performance too much - we may have
@@ -471,29 +435,29 @@ static int is_leaf(char *buf, int blocksize, struct buffer_head *bh)
471 prev_location = blocksize; 435 prev_location = blocksize;
472 for (i = 0; i < nr; i++, ih++) { 436 for (i = 0; i < nr; i++, ih++) {
473 if (le_ih_k_type(ih) == TYPE_ANY) { 437 if (le_ih_k_type(ih) == TYPE_ANY) {
474 reiserfs_warning(NULL, 438 reiserfs_warning(NULL, "reiserfs-5083",
475 "is_leaf: wrong item type for item %h", 439 "wrong item type for item %h",
476 ih); 440 ih);
477 return 0; 441 return 0;
478 } 442 }
479 if (ih_location(ih) >= blocksize 443 if (ih_location(ih) >= blocksize
480 || ih_location(ih) < IH_SIZE * nr) { 444 || ih_location(ih) < IH_SIZE * nr) {
481 reiserfs_warning(NULL, 445 reiserfs_warning(NULL, "reiserfs-5084",
482 "is_leaf: item location seems wrong: %h", 446 "item location seems wrong: %h",
483 ih); 447 ih);
484 return 0; 448 return 0;
485 } 449 }
486 if (ih_item_len(ih) < 1 450 if (ih_item_len(ih) < 1
487 || ih_item_len(ih) > MAX_ITEM_LEN(blocksize)) { 451 || ih_item_len(ih) > MAX_ITEM_LEN(blocksize)) {
488 reiserfs_warning(NULL, 452 reiserfs_warning(NULL, "reiserfs-5085",
489 "is_leaf: item length seems wrong: %h", 453 "item length seems wrong: %h",
490 ih); 454 ih);
491 return 0; 455 return 0;
492 } 456 }
493 if (prev_location - ih_location(ih) != ih_item_len(ih)) { 457 if (prev_location - ih_location(ih) != ih_item_len(ih)) {
494 reiserfs_warning(NULL, 458 reiserfs_warning(NULL, "reiserfs-5086",
495 "is_leaf: item location seems wrong (second one): %h", 459 "item location seems wrong "
496 ih); 460 "(second one): %h", ih);
497 return 0; 461 return 0;
498 } 462 }
499 prev_location = ih_location(ih); 463 prev_location = ih_location(ih);
@@ -514,24 +478,23 @@ static int is_internal(char *buf, int blocksize, struct buffer_head *bh)
514 nr = blkh_level(blkh); 478 nr = blkh_level(blkh);
515 if (nr <= DISK_LEAF_NODE_LEVEL || nr > MAX_HEIGHT) { 479 if (nr <= DISK_LEAF_NODE_LEVEL || nr > MAX_HEIGHT) {
516 /* this level is not possible for internal nodes */ 480 /* this level is not possible for internal nodes */
517 reiserfs_warning(NULL, 481 reiserfs_warning(NULL, "reiserfs-5087",
518 "is_internal: this should be caught earlier"); 482 "this should be caught earlier");
519 return 0; 483 return 0;
520 } 484 }
521 485
522 nr = blkh_nr_item(blkh); 486 nr = blkh_nr_item(blkh);
523 if (nr > (blocksize - BLKH_SIZE - DC_SIZE) / (KEY_SIZE + DC_SIZE)) { 487 if (nr > (blocksize - BLKH_SIZE - DC_SIZE) / (KEY_SIZE + DC_SIZE)) {
524 /* for internal which is not root we might check min number of keys */ 488 /* for internal which is not root we might check min number of keys */
525 reiserfs_warning(NULL, 489 reiserfs_warning(NULL, "reiserfs-5088",
526 "is_internal: number of key seems wrong: %z", 490 "number of key seems wrong: %z", bh);
527 bh);
528 return 0; 491 return 0;
529 } 492 }
530 493
531 used_space = BLKH_SIZE + KEY_SIZE * nr + DC_SIZE * (nr + 1); 494 used_space = BLKH_SIZE + KEY_SIZE * nr + DC_SIZE * (nr + 1);
532 if (used_space != blocksize - blkh_free_space(blkh)) { 495 if (used_space != blocksize - blkh_free_space(blkh)) {
533 reiserfs_warning(NULL, 496 reiserfs_warning(NULL, "reiserfs-5089",
534 "is_internal: free space seems wrong: %z", bh); 497 "free space seems wrong: %z", bh);
535 return 0; 498 return 0;
536 } 499 }
537 // one may imagine much more checks 500 // one may imagine much more checks
@@ -543,8 +506,8 @@ static int is_internal(char *buf, int blocksize, struct buffer_head *bh)
543static int is_tree_node(struct buffer_head *bh, int level) 506static int is_tree_node(struct buffer_head *bh, int level)
544{ 507{
545 if (B_LEVEL(bh) != level) { 508 if (B_LEVEL(bh) != level) {
546 reiserfs_warning(NULL, 509 reiserfs_warning(NULL, "reiserfs-5090", "node level %d does "
547 "is_tree_node: node level %d does not match to the expected one %d", 510 "not match to the expected one %d",
548 B_LEVEL(bh), level); 511 B_LEVEL(bh), level);
549 return 0; 512 return 0;
550 } 513 }
@@ -580,10 +543,10 @@ static void search_by_key_reada(struct super_block *s,
580/************************************************************************** 543/**************************************************************************
581 * Algorithm SearchByKey * 544 * Algorithm SearchByKey *
582 * look for item in the Disk S+Tree by its key * 545 * look for item in the Disk S+Tree by its key *
583 * Input: p_s_sb - super block * 546 * Input: sb - super block *
584 * p_s_key - pointer to the key to search * 547 * key - pointer to the key to search *
585 * Output: ITEM_FOUND, ITEM_NOT_FOUND or IO_ERROR * 548 * Output: ITEM_FOUND, ITEM_NOT_FOUND or IO_ERROR *
586 * p_s_search_path - path from the root to the needed leaf * 549 * search_path - path from the root to the needed leaf *
587 **************************************************************************/ 550 **************************************************************************/
588 551
589/* This function fills up the path from the root to the leaf as it 552/* This function fills up the path from the root to the leaf as it
@@ -600,22 +563,22 @@ static void search_by_key_reada(struct super_block *s,
600 correctness of the top of the path but need not be checked for the 563 correctness of the top of the path but need not be checked for the
601 correctness of the bottom of the path */ 564 correctness of the bottom of the path */
602/* The function is NOT SCHEDULE-SAFE! */ 565/* The function is NOT SCHEDULE-SAFE! */
603int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key, /* Key to search. */ 566int search_by_key(struct super_block *sb, const struct cpu_key *key, /* Key to search. */
604 struct treepath *p_s_search_path,/* This structure was 567 struct treepath *search_path,/* This structure was
605 allocated and initialized 568 allocated and initialized
606 by the calling 569 by the calling
607 function. It is filled up 570 function. It is filled up
608 by this function. */ 571 by this function. */
609 int n_stop_level /* How far down the tree to search. To 572 int stop_level /* How far down the tree to search. To
610 stop at leaf level - set to 573 stop at leaf level - set to
611 DISK_LEAF_NODE_LEVEL */ 574 DISK_LEAF_NODE_LEVEL */
612 ) 575 )
613{ 576{
614 b_blocknr_t n_block_number; 577 b_blocknr_t block_number;
615 int expected_level; 578 int expected_level;
616 struct buffer_head *p_s_bh; 579 struct buffer_head *bh;
617 struct path_element *p_s_last_element; 580 struct path_element *last_element;
618 int n_node_level, n_retval; 581 int node_level, retval;
619 int right_neighbor_of_leaf_node; 582 int right_neighbor_of_leaf_node;
620 int fs_gen; 583 int fs_gen;
621 struct buffer_head *reada_bh[SEARCH_BY_KEY_READA]; 584 struct buffer_head *reada_bh[SEARCH_BY_KEY_READA];
@@ -623,80 +586,79 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key, /*
623 int reada_count = 0; 586 int reada_count = 0;
624 587
625#ifdef CONFIG_REISERFS_CHECK 588#ifdef CONFIG_REISERFS_CHECK
626 int n_repeat_counter = 0; 589 int repeat_counter = 0;
627#endif 590#endif
628 591
629 PROC_INFO_INC(p_s_sb, search_by_key); 592 PROC_INFO_INC(sb, search_by_key);
630 593
631 /* As we add each node to a path we increase its count. This means that 594 /* As we add each node to a path we increase its count. This means that
632 we must be careful to release all nodes in a path before we either 595 we must be careful to release all nodes in a path before we either
633 discard the path struct or re-use the path struct, as we do here. */ 596 discard the path struct or re-use the path struct, as we do here. */
634 597
635 decrement_counters_in_path(p_s_search_path); 598 pathrelse(search_path);
636 599
637 right_neighbor_of_leaf_node = 0; 600 right_neighbor_of_leaf_node = 0;
638 601
639 /* With each iteration of this loop we search through the items in the 602 /* With each iteration of this loop we search through the items in the
640 current node, and calculate the next current node(next path element) 603 current node, and calculate the next current node(next path element)
641 for the next iteration of this loop.. */ 604 for the next iteration of this loop.. */
642 n_block_number = SB_ROOT_BLOCK(p_s_sb); 605 block_number = SB_ROOT_BLOCK(sb);
643 expected_level = -1; 606 expected_level = -1;
644 while (1) { 607 while (1) {
645 608
646#ifdef CONFIG_REISERFS_CHECK 609#ifdef CONFIG_REISERFS_CHECK
647 if (!(++n_repeat_counter % 50000)) 610 if (!(++repeat_counter % 50000))
648 reiserfs_warning(p_s_sb, "PAP-5100: search_by_key: %s:" 611 reiserfs_warning(sb, "PAP-5100",
649 "there were %d iterations of while loop " 612 "%s: there were %d iterations of "
650 "looking for key %K", 613 "while loop looking for key %K",
651 current->comm, n_repeat_counter, 614 current->comm, repeat_counter,
652 p_s_key); 615 key);
653#endif 616#endif
654 617
655 /* prep path to have another element added to it. */ 618 /* prep path to have another element added to it. */
656 p_s_last_element = 619 last_element =
657 PATH_OFFSET_PELEMENT(p_s_search_path, 620 PATH_OFFSET_PELEMENT(search_path,
658 ++p_s_search_path->path_length); 621 ++search_path->path_length);
659 fs_gen = get_generation(p_s_sb); 622 fs_gen = get_generation(sb);
660 623
661 /* Read the next tree node, and set the last element in the path to 624 /* Read the next tree node, and set the last element in the path to
662 have a pointer to it. */ 625 have a pointer to it. */
663 if ((p_s_bh = p_s_last_element->pe_buffer = 626 if ((bh = last_element->pe_buffer =
664 sb_getblk(p_s_sb, n_block_number))) { 627 sb_getblk(sb, block_number))) {
665 if (!buffer_uptodate(p_s_bh) && reada_count > 1) { 628 if (!buffer_uptodate(bh) && reada_count > 1)
666 search_by_key_reada(p_s_sb, reada_bh, 629 search_by_key_reada(sb, reada_bh,
667 reada_blocks, reada_count); 630 reada_blocks, reada_count);
668 } 631 ll_rw_block(READ, 1, &bh);
669 ll_rw_block(READ, 1, &p_s_bh); 632 wait_on_buffer(bh);
670 wait_on_buffer(p_s_bh); 633 if (!buffer_uptodate(bh))
671 if (!buffer_uptodate(p_s_bh))
672 goto io_error; 634 goto io_error;
673 } else { 635 } else {
674 io_error: 636 io_error:
675 p_s_search_path->path_length--; 637 search_path->path_length--;
676 pathrelse(p_s_search_path); 638 pathrelse(search_path);
677 return IO_ERROR; 639 return IO_ERROR;
678 } 640 }
679 reada_count = 0; 641 reada_count = 0;
680 if (expected_level == -1) 642 if (expected_level == -1)
681 expected_level = SB_TREE_HEIGHT(p_s_sb); 643 expected_level = SB_TREE_HEIGHT(sb);
682 expected_level--; 644 expected_level--;
683 645
684 /* It is possible that schedule occurred. We must check whether the key 646 /* It is possible that schedule occurred. We must check whether the key
685 to search is still in the tree rooted from the current buffer. If 647 to search is still in the tree rooted from the current buffer. If
686 not then repeat search from the root. */ 648 not then repeat search from the root. */
687 if (fs_changed(fs_gen, p_s_sb) && 649 if (fs_changed(fs_gen, sb) &&
688 (!B_IS_IN_TREE(p_s_bh) || 650 (!B_IS_IN_TREE(bh) ||
689 B_LEVEL(p_s_bh) != expected_level || 651 B_LEVEL(bh) != expected_level ||
690 !key_in_buffer(p_s_search_path, p_s_key, p_s_sb))) { 652 !key_in_buffer(search_path, key, sb))) {
691 PROC_INFO_INC(p_s_sb, search_by_key_fs_changed); 653 PROC_INFO_INC(sb, search_by_key_fs_changed);
692 PROC_INFO_INC(p_s_sb, search_by_key_restarted); 654 PROC_INFO_INC(sb, search_by_key_restarted);
693 PROC_INFO_INC(p_s_sb, 655 PROC_INFO_INC(sb,
694 sbk_restarted[expected_level - 1]); 656 sbk_restarted[expected_level - 1]);
695 decrement_counters_in_path(p_s_search_path); 657 pathrelse(search_path);
696 658
697 /* Get the root block number so that we can repeat the search 659 /* Get the root block number so that we can repeat the search
698 starting from the root. */ 660 starting from the root. */
699 n_block_number = SB_ROOT_BLOCK(p_s_sb); 661 block_number = SB_ROOT_BLOCK(sb);
700 expected_level = -1; 662 expected_level = -1;
701 right_neighbor_of_leaf_node = 0; 663 right_neighbor_of_leaf_node = 0;
702 664
@@ -704,53 +666,53 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key, /*
704 continue; 666 continue;
705 } 667 }
706 668
707 /* only check that the key is in the buffer if p_s_key is not 669 /* only check that the key is in the buffer if key is not
708 equal to the MAX_KEY. Latter case is only possible in 670 equal to the MAX_KEY. Latter case is only possible in
709 "finish_unfinished()" processing during mount. */ 671 "finish_unfinished()" processing during mount. */
710 RFALSE(comp_keys(&MAX_KEY, p_s_key) && 672 RFALSE(comp_keys(&MAX_KEY, key) &&
711 !key_in_buffer(p_s_search_path, p_s_key, p_s_sb), 673 !key_in_buffer(search_path, key, sb),
712 "PAP-5130: key is not in the buffer"); 674 "PAP-5130: key is not in the buffer");
713#ifdef CONFIG_REISERFS_CHECK 675#ifdef CONFIG_REISERFS_CHECK
714 if (cur_tb) { 676 if (cur_tb) {
715 print_cur_tb("5140"); 677 print_cur_tb("5140");
716 reiserfs_panic(p_s_sb, 678 reiserfs_panic(sb, "PAP-5140",
717 "PAP-5140: search_by_key: schedule occurred in do_balance!"); 679 "schedule occurred in do_balance!");
718 } 680 }
719#endif 681#endif
720 682
721 // make sure, that the node contents look like a node of 683 // make sure, that the node contents look like a node of
722 // certain level 684 // certain level
723 if (!is_tree_node(p_s_bh, expected_level)) { 685 if (!is_tree_node(bh, expected_level)) {
724 reiserfs_warning(p_s_sb, "vs-5150: search_by_key: " 686 reiserfs_error(sb, "vs-5150",
725 "invalid format found in block %ld. Fsck?", 687 "invalid format found in block %ld. "
726 p_s_bh->b_blocknr); 688 "Fsck?", bh->b_blocknr);
727 pathrelse(p_s_search_path); 689 pathrelse(search_path);
728 return IO_ERROR; 690 return IO_ERROR;
729 } 691 }
730 692
731 /* ok, we have acquired next formatted node in the tree */ 693 /* ok, we have acquired next formatted node in the tree */
732 n_node_level = B_LEVEL(p_s_bh); 694 node_level = B_LEVEL(bh);
733 695
734 PROC_INFO_BH_STAT(p_s_sb, p_s_bh, n_node_level - 1); 696 PROC_INFO_BH_STAT(sb, bh, node_level - 1);
735 697
736 RFALSE(n_node_level < n_stop_level, 698 RFALSE(node_level < stop_level,
737 "vs-5152: tree level (%d) is less than stop level (%d)", 699 "vs-5152: tree level (%d) is less than stop level (%d)",
738 n_node_level, n_stop_level); 700 node_level, stop_level);
739 701
740 n_retval = bin_search(p_s_key, B_N_PITEM_HEAD(p_s_bh, 0), 702 retval = bin_search(key, B_N_PITEM_HEAD(bh, 0),
741 B_NR_ITEMS(p_s_bh), 703 B_NR_ITEMS(bh),
742 (n_node_level == 704 (node_level ==
743 DISK_LEAF_NODE_LEVEL) ? IH_SIZE : 705 DISK_LEAF_NODE_LEVEL) ? IH_SIZE :
744 KEY_SIZE, 706 KEY_SIZE,
745 &(p_s_last_element->pe_position)); 707 &(last_element->pe_position));
746 if (n_node_level == n_stop_level) { 708 if (node_level == stop_level) {
747 return n_retval; 709 return retval;
748 } 710 }
749 711
750 /* we are not in the stop level */ 712 /* we are not in the stop level */
751 if (n_retval == ITEM_FOUND) 713 if (retval == ITEM_FOUND)
752 /* item has been found, so we choose the pointer which is to the right of the found one */ 714 /* item has been found, so we choose the pointer which is to the right of the found one */
753 p_s_last_element->pe_position++; 715 last_element->pe_position++;
754 716
755 /* if item was not found we choose the position which is to 717 /* if item was not found we choose the position which is to
756 the left of the found item. This requires no code, 718 the left of the found item. This requires no code,
@@ -759,24 +721,24 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key, /*
759 /* So we have chosen a position in the current node which is 721 /* So we have chosen a position in the current node which is
760 an internal node. Now we calculate child block number by 722 an internal node. Now we calculate child block number by
761 position in the node. */ 723 position in the node. */
762 n_block_number = 724 block_number =
763 B_N_CHILD_NUM(p_s_bh, p_s_last_element->pe_position); 725 B_N_CHILD_NUM(bh, last_element->pe_position);
764 726
765 /* if we are going to read leaf nodes, try for read ahead as well */ 727 /* if we are going to read leaf nodes, try for read ahead as well */
766 if ((p_s_search_path->reada & PATH_READA) && 728 if ((search_path->reada & PATH_READA) &&
767 n_node_level == DISK_LEAF_NODE_LEVEL + 1) { 729 node_level == DISK_LEAF_NODE_LEVEL + 1) {
768 int pos = p_s_last_element->pe_position; 730 int pos = last_element->pe_position;
769 int limit = B_NR_ITEMS(p_s_bh); 731 int limit = B_NR_ITEMS(bh);
770 struct reiserfs_key *le_key; 732 struct reiserfs_key *le_key;
771 733
772 if (p_s_search_path->reada & PATH_READA_BACK) 734 if (search_path->reada & PATH_READA_BACK)
773 limit = 0; 735 limit = 0;
774 while (reada_count < SEARCH_BY_KEY_READA) { 736 while (reada_count < SEARCH_BY_KEY_READA) {
775 if (pos == limit) 737 if (pos == limit)
776 break; 738 break;
777 reada_blocks[reada_count++] = 739 reada_blocks[reada_count++] =
778 B_N_CHILD_NUM(p_s_bh, pos); 740 B_N_CHILD_NUM(bh, pos);
779 if (p_s_search_path->reada & PATH_READA_BACK) 741 if (search_path->reada & PATH_READA_BACK)
780 pos--; 742 pos--;
781 else 743 else
782 pos++; 744 pos++;
@@ -784,9 +746,9 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key, /*
784 /* 746 /*
785 * check to make sure we're in the same object 747 * check to make sure we're in the same object
786 */ 748 */
787 le_key = B_N_PDELIM_KEY(p_s_bh, pos); 749 le_key = B_N_PDELIM_KEY(bh, pos);
788 if (le32_to_cpu(le_key->k_objectid) != 750 if (le32_to_cpu(le_key->k_objectid) !=
789 p_s_key->on_disk_key.k_objectid) { 751 key->on_disk_key.k_objectid) {
790 break; 752 break;
791 } 753 }
792 } 754 }
@@ -795,11 +757,11 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key, /*
795} 757}
796 758
797/* Form the path to an item and position in this item which contains 759/* Form the path to an item and position in this item which contains
798 file byte defined by p_s_key. If there is no such item 760 file byte defined by key. If there is no such item
799 corresponding to the key, we point the path to the item with 761 corresponding to the key, we point the path to the item with
800 maximal key less than p_s_key, and *p_n_pos_in_item is set to one 762 maximal key less than key, and *pos_in_item is set to one
801 past the last entry/byte in the item. If searching for entry in a 763 past the last entry/byte in the item. If searching for entry in a
802 directory item, and it is not found, *p_n_pos_in_item is set to one 764 directory item, and it is not found, *pos_in_item is set to one
803 entry more than the entry with maximal key which is less than the 765 entry more than the entry with maximal key which is less than the
804 sought key. 766 sought key.
805 767
@@ -810,48 +772,48 @@ int search_by_key(struct super_block *p_s_sb, const struct cpu_key *p_s_key, /*
810 units of directory entries. */ 772 units of directory entries. */
811 773
812/* The function is NOT SCHEDULE-SAFE! */ 774/* The function is NOT SCHEDULE-SAFE! */
813int search_for_position_by_key(struct super_block *p_s_sb, /* Pointer to the super block. */ 775int search_for_position_by_key(struct super_block *sb, /* Pointer to the super block. */
814 const struct cpu_key *p_cpu_key, /* Key to search (cpu variable) */ 776 const struct cpu_key *p_cpu_key, /* Key to search (cpu variable) */
815 struct treepath *p_s_search_path /* Filled up by this function. */ 777 struct treepath *search_path /* Filled up by this function. */
816 ) 778 )
817{ 779{
818 struct item_head *p_le_ih; /* pointer to on-disk structure */ 780 struct item_head *p_le_ih; /* pointer to on-disk structure */
819 int n_blk_size; 781 int blk_size;
820 loff_t item_offset, offset; 782 loff_t item_offset, offset;
821 struct reiserfs_dir_entry de; 783 struct reiserfs_dir_entry de;
822 int retval; 784 int retval;
823 785
824 /* If searching for directory entry. */ 786 /* If searching for directory entry. */
825 if (is_direntry_cpu_key(p_cpu_key)) 787 if (is_direntry_cpu_key(p_cpu_key))
826 return search_by_entry_key(p_s_sb, p_cpu_key, p_s_search_path, 788 return search_by_entry_key(sb, p_cpu_key, search_path,
827 &de); 789 &de);
828 790
829 /* If not searching for directory entry. */ 791 /* If not searching for directory entry. */
830 792
831 /* If item is found. */ 793 /* If item is found. */
832 retval = search_item(p_s_sb, p_cpu_key, p_s_search_path); 794 retval = search_item(sb, p_cpu_key, search_path);
833 if (retval == IO_ERROR) 795 if (retval == IO_ERROR)
834 return retval; 796 return retval;
835 if (retval == ITEM_FOUND) { 797 if (retval == ITEM_FOUND) {
836 798
837 RFALSE(!ih_item_len 799 RFALSE(!ih_item_len
838 (B_N_PITEM_HEAD 800 (B_N_PITEM_HEAD
839 (PATH_PLAST_BUFFER(p_s_search_path), 801 (PATH_PLAST_BUFFER(search_path),
840 PATH_LAST_POSITION(p_s_search_path))), 802 PATH_LAST_POSITION(search_path))),
841 "PAP-5165: item length equals zero"); 803 "PAP-5165: item length equals zero");
842 804
843 pos_in_item(p_s_search_path) = 0; 805 pos_in_item(search_path) = 0;
844 return POSITION_FOUND; 806 return POSITION_FOUND;
845 } 807 }
846 808
847 RFALSE(!PATH_LAST_POSITION(p_s_search_path), 809 RFALSE(!PATH_LAST_POSITION(search_path),
848 "PAP-5170: position equals zero"); 810 "PAP-5170: position equals zero");
849 811
850 /* Item is not found. Set path to the previous item. */ 812 /* Item is not found. Set path to the previous item. */
851 p_le_ih = 813 p_le_ih =
852 B_N_PITEM_HEAD(PATH_PLAST_BUFFER(p_s_search_path), 814 B_N_PITEM_HEAD(PATH_PLAST_BUFFER(search_path),
853 --PATH_LAST_POSITION(p_s_search_path)); 815 --PATH_LAST_POSITION(search_path));
854 n_blk_size = p_s_sb->s_blocksize; 816 blk_size = sb->s_blocksize;
855 817
856 if (comp_short_keys(&(p_le_ih->ih_key), p_cpu_key)) { 818 if (comp_short_keys(&(p_le_ih->ih_key), p_cpu_key)) {
857 return FILE_NOT_FOUND; 819 return FILE_NOT_FOUND;
@@ -863,10 +825,10 @@ int search_for_position_by_key(struct super_block *p_s_sb, /* Pointer to the sup
863 825
864 /* Needed byte is contained in the item pointed to by the path. */ 826 /* Needed byte is contained in the item pointed to by the path. */
865 if (item_offset <= offset && 827 if (item_offset <= offset &&
866 item_offset + op_bytes_number(p_le_ih, n_blk_size) > offset) { 828 item_offset + op_bytes_number(p_le_ih, blk_size) > offset) {
867 pos_in_item(p_s_search_path) = offset - item_offset; 829 pos_in_item(search_path) = offset - item_offset;
868 if (is_indirect_le_ih(p_le_ih)) { 830 if (is_indirect_le_ih(p_le_ih)) {
869 pos_in_item(p_s_search_path) /= n_blk_size; 831 pos_in_item(search_path) /= blk_size;
870 } 832 }
871 return POSITION_FOUND; 833 return POSITION_FOUND;
872 } 834 }
@@ -874,30 +836,30 @@ int search_for_position_by_key(struct super_block *p_s_sb, /* Pointer to the sup
874 /* Needed byte is not contained in the item pointed to by the 836 /* Needed byte is not contained in the item pointed to by the
875 path. Set pos_in_item out of the item. */ 837 path. Set pos_in_item out of the item. */
876 if (is_indirect_le_ih(p_le_ih)) 838 if (is_indirect_le_ih(p_le_ih))
877 pos_in_item(p_s_search_path) = 839 pos_in_item(search_path) =
878 ih_item_len(p_le_ih) / UNFM_P_SIZE; 840 ih_item_len(p_le_ih) / UNFM_P_SIZE;
879 else 841 else
880 pos_in_item(p_s_search_path) = ih_item_len(p_le_ih); 842 pos_in_item(search_path) = ih_item_len(p_le_ih);
881 843
882 return POSITION_NOT_FOUND; 844 return POSITION_NOT_FOUND;
883} 845}
884 846
885/* Compare given item and item pointed to by the path. */ 847/* Compare given item and item pointed to by the path. */
886int comp_items(const struct item_head *stored_ih, const struct treepath *p_s_path) 848int comp_items(const struct item_head *stored_ih, const struct treepath *path)
887{ 849{
888 struct buffer_head *p_s_bh; 850 struct buffer_head *bh = PATH_PLAST_BUFFER(path);
889 struct item_head *ih; 851 struct item_head *ih;
890 852
891 /* Last buffer at the path is not in the tree. */ 853 /* Last buffer at the path is not in the tree. */
892 if (!B_IS_IN_TREE(p_s_bh = PATH_PLAST_BUFFER(p_s_path))) 854 if (!B_IS_IN_TREE(bh))
893 return 1; 855 return 1;
894 856
895 /* Last path position is invalid. */ 857 /* Last path position is invalid. */
896 if (PATH_LAST_POSITION(p_s_path) >= B_NR_ITEMS(p_s_bh)) 858 if (PATH_LAST_POSITION(path) >= B_NR_ITEMS(bh))
897 return 1; 859 return 1;
898 860
899 /* we need only to know, whether it is the same item */ 861 /* we need only to know, whether it is the same item */
900 ih = get_ih(p_s_path); 862 ih = get_ih(path);
901 return memcmp(stored_ih, ih, IH_SIZE); 863 return memcmp(stored_ih, ih, IH_SIZE);
902} 864}
903 865
@@ -924,9 +886,9 @@ static inline int prepare_for_direct_item(struct treepath *path,
924 } 886 }
925 // new file gets truncated 887 // new file gets truncated
926 if (get_inode_item_key_version(inode) == KEY_FORMAT_3_6) { 888 if (get_inode_item_key_version(inode) == KEY_FORMAT_3_6) {
927 // 889 //
928 round_len = ROUND_UP(new_file_length); 890 round_len = ROUND_UP(new_file_length);
929 /* this was n_new_file_length < le_ih ... */ 891 /* this was new_file_length < le_ih ... */
930 if (round_len < le_ih_k_offset(le_ih)) { 892 if (round_len < le_ih_k_offset(le_ih)) {
931 *cut_size = -(IH_SIZE + ih_item_len(le_ih)); 893 *cut_size = -(IH_SIZE + ih_item_len(le_ih));
932 return M_DELETE; /* Delete this item. */ 894 return M_DELETE; /* Delete this item. */
@@ -986,96 +948,95 @@ static inline int prepare_for_direntry_item(struct treepath *path,
986 In case of file truncate calculate whether this item must be deleted/truncated or last 948 In case of file truncate calculate whether this item must be deleted/truncated or last
987 unformatted node of this item will be converted to a direct item. 949 unformatted node of this item will be converted to a direct item.
988 This function returns a determination of what balance mode the calling function should employ. */ 950 This function returns a determination of what balance mode the calling function should employ. */
989static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, struct inode *inode, struct treepath *p_s_path, const struct cpu_key *p_s_item_key, int *p_n_removed, /* Number of unformatted nodes which were removed 951static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, struct inode *inode, struct treepath *path, const struct cpu_key *item_key, int *removed, /* Number of unformatted nodes which were removed
990 from end of the file. */ 952 from end of the file. */
991 int *p_n_cut_size, unsigned long long n_new_file_length /* MAX_KEY_OFFSET in case of delete. */ 953 int *cut_size, unsigned long long new_file_length /* MAX_KEY_OFFSET in case of delete. */
992 ) 954 )
993{ 955{
994 struct super_block *p_s_sb = inode->i_sb; 956 struct super_block *sb = inode->i_sb;
995 struct item_head *p_le_ih = PATH_PITEM_HEAD(p_s_path); 957 struct item_head *p_le_ih = PATH_PITEM_HEAD(path);
996 struct buffer_head *p_s_bh = PATH_PLAST_BUFFER(p_s_path); 958 struct buffer_head *bh = PATH_PLAST_BUFFER(path);
997 959
998 BUG_ON(!th->t_trans_id); 960 BUG_ON(!th->t_trans_id);
999 961
1000 /* Stat_data item. */ 962 /* Stat_data item. */
1001 if (is_statdata_le_ih(p_le_ih)) { 963 if (is_statdata_le_ih(p_le_ih)) {
1002 964
1003 RFALSE(n_new_file_length != max_reiserfs_offset(inode), 965 RFALSE(new_file_length != max_reiserfs_offset(inode),
1004 "PAP-5210: mode must be M_DELETE"); 966 "PAP-5210: mode must be M_DELETE");
1005 967
1006 *p_n_cut_size = -(IH_SIZE + ih_item_len(p_le_ih)); 968 *cut_size = -(IH_SIZE + ih_item_len(p_le_ih));
1007 return M_DELETE; 969 return M_DELETE;
1008 } 970 }
1009 971
1010 /* Directory item. */ 972 /* Directory item. */
1011 if (is_direntry_le_ih(p_le_ih)) 973 if (is_direntry_le_ih(p_le_ih))
1012 return prepare_for_direntry_item(p_s_path, p_le_ih, inode, 974 return prepare_for_direntry_item(path, p_le_ih, inode,
1013 n_new_file_length, 975 new_file_length,
1014 p_n_cut_size); 976 cut_size);
1015 977
1016 /* Direct item. */ 978 /* Direct item. */
1017 if (is_direct_le_ih(p_le_ih)) 979 if (is_direct_le_ih(p_le_ih))
1018 return prepare_for_direct_item(p_s_path, p_le_ih, inode, 980 return prepare_for_direct_item(path, p_le_ih, inode,
1019 n_new_file_length, p_n_cut_size); 981 new_file_length, cut_size);
1020 982
1021 /* Case of an indirect item. */ 983 /* Case of an indirect item. */
1022 { 984 {
1023 int blk_size = p_s_sb->s_blocksize; 985 int blk_size = sb->s_blocksize;
1024 struct item_head s_ih; 986 struct item_head s_ih;
1025 int need_re_search; 987 int need_re_search;
1026 int delete = 0; 988 int delete = 0;
1027 int result = M_CUT; 989 int result = M_CUT;
1028 int pos = 0; 990 int pos = 0;
1029 991
1030 if ( n_new_file_length == max_reiserfs_offset (inode) ) { 992 if ( new_file_length == max_reiserfs_offset (inode) ) {
1031 /* prepare_for_delete_or_cut() is called by 993 /* prepare_for_delete_or_cut() is called by
1032 * reiserfs_delete_item() */ 994 * reiserfs_delete_item() */
1033 n_new_file_length = 0; 995 new_file_length = 0;
1034 delete = 1; 996 delete = 1;
1035 } 997 }
1036 998
1037 do { 999 do {
1038 need_re_search = 0; 1000 need_re_search = 0;
1039 *p_n_cut_size = 0; 1001 *cut_size = 0;
1040 p_s_bh = PATH_PLAST_BUFFER(p_s_path); 1002 bh = PATH_PLAST_BUFFER(path);
1041 copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path)); 1003 copy_item_head(&s_ih, PATH_PITEM_HEAD(path));
1042 pos = I_UNFM_NUM(&s_ih); 1004 pos = I_UNFM_NUM(&s_ih);
1043 1005
1044 while (le_ih_k_offset (&s_ih) + (pos - 1) * blk_size > n_new_file_length) { 1006 while (le_ih_k_offset (&s_ih) + (pos - 1) * blk_size > new_file_length) {
1045 __le32 *unfm; 1007 __le32 *unfm;
1046 __u32 block; 1008 __u32 block;
1047 1009
1048 /* Each unformatted block deletion may involve one additional 1010 /* Each unformatted block deletion may involve one additional
1049 * bitmap block into the transaction, thereby the initial 1011 * bitmap block into the transaction, thereby the initial
1050 * journal space reservation might not be enough. */ 1012 * journal space reservation might not be enough. */
1051 if (!delete && (*p_n_cut_size) != 0 && 1013 if (!delete && (*cut_size) != 0 &&
1052 reiserfs_transaction_free_space(th) < JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD) { 1014 reiserfs_transaction_free_space(th) < JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD)
1053 break; 1015 break;
1054 }
1055 1016
1056 unfm = (__le32 *)B_I_PITEM(p_s_bh, &s_ih) + pos - 1; 1017 unfm = (__le32 *)B_I_PITEM(bh, &s_ih) + pos - 1;
1057 block = get_block_num(unfm, 0); 1018 block = get_block_num(unfm, 0);
1058 1019
1059 if (block != 0) { 1020 if (block != 0) {
1060 reiserfs_prepare_for_journal(p_s_sb, p_s_bh, 1); 1021 reiserfs_prepare_for_journal(sb, bh, 1);
1061 put_block_num(unfm, 0, 0); 1022 put_block_num(unfm, 0, 0);
1062 journal_mark_dirty (th, p_s_sb, p_s_bh); 1023 journal_mark_dirty(th, sb, bh);
1063 reiserfs_free_block(th, inode, block, 1); 1024 reiserfs_free_block(th, inode, block, 1);
1064 } 1025 }
1065 1026
1066 cond_resched(); 1027 cond_resched();
1067 1028
1068 if (item_moved (&s_ih, p_s_path)) { 1029 if (item_moved (&s_ih, path)) {
1069 need_re_search = 1; 1030 need_re_search = 1;
1070 break; 1031 break;
1071 } 1032 }
1072 1033
1073 pos --; 1034 pos --;
1074 (*p_n_removed) ++; 1035 (*removed)++;
1075 (*p_n_cut_size) -= UNFM_P_SIZE; 1036 (*cut_size) -= UNFM_P_SIZE;
1076 1037
1077 if (pos == 0) { 1038 if (pos == 0) {
1078 (*p_n_cut_size) -= IH_SIZE; 1039 (*cut_size) -= IH_SIZE;
1079 result = M_DELETE; 1040 result = M_DELETE;
1080 break; 1041 break;
1081 } 1042 }
@@ -1083,12 +1044,12 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
1083 /* a trick. If the buffer has been logged, this will do nothing. If 1044 /* a trick. If the buffer has been logged, this will do nothing. If
1084 ** we've broken the loop without logging it, it will restore the 1045 ** we've broken the loop without logging it, it will restore the
1085 ** buffer */ 1046 ** buffer */
1086 reiserfs_restore_prepared_buffer(p_s_sb, p_s_bh); 1047 reiserfs_restore_prepared_buffer(sb, bh);
1087 } while (need_re_search && 1048 } while (need_re_search &&
1088 search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path) == POSITION_FOUND); 1049 search_for_position_by_key(sb, item_key, path) == POSITION_FOUND);
1089 pos_in_item(p_s_path) = pos * UNFM_P_SIZE; 1050 pos_in_item(path) = pos * UNFM_P_SIZE;
1090 1051
1091 if (*p_n_cut_size == 0) { 1052 if (*cut_size == 0) {
1092 /* Nothing were cut. maybe convert last unformatted node to the 1053 /* Nothing were cut. maybe convert last unformatted node to the
1093 * direct item? */ 1054 * direct item? */
1094 result = M_CONVERT; 1055 result = M_CONVERT;
@@ -1098,45 +1059,45 @@ static char prepare_for_delete_or_cut(struct reiserfs_transaction_handle *th, st
1098} 1059}
1099 1060
1100/* Calculate number of bytes which will be deleted or cut during balance */ 1061/* Calculate number of bytes which will be deleted or cut during balance */
1101static int calc_deleted_bytes_number(struct tree_balance *p_s_tb, char c_mode) 1062static int calc_deleted_bytes_number(struct tree_balance *tb, char mode)
1102{ 1063{
1103 int n_del_size; 1064 int del_size;
1104 struct item_head *p_le_ih = PATH_PITEM_HEAD(p_s_tb->tb_path); 1065 struct item_head *p_le_ih = PATH_PITEM_HEAD(tb->tb_path);
1105 1066
1106 if (is_statdata_le_ih(p_le_ih)) 1067 if (is_statdata_le_ih(p_le_ih))
1107 return 0; 1068 return 0;
1108 1069
1109 n_del_size = 1070 del_size =
1110 (c_mode == 1071 (mode ==
1111 M_DELETE) ? ih_item_len(p_le_ih) : -p_s_tb->insert_size[0]; 1072 M_DELETE) ? ih_item_len(p_le_ih) : -tb->insert_size[0];
1112 if (is_direntry_le_ih(p_le_ih)) { 1073 if (is_direntry_le_ih(p_le_ih)) {
1113 // return EMPTY_DIR_SIZE; /* We delete emty directoris only. */ 1074 /* return EMPTY_DIR_SIZE; We delete emty directoris only.
1114 // we can't use EMPTY_DIR_SIZE, as old format dirs have a different 1075 * we can't use EMPTY_DIR_SIZE, as old format dirs have a different
1115 // empty size. ick. FIXME, is this right? 1076 * empty size. ick. FIXME, is this right? */
1116 // 1077 return del_size;
1117 return n_del_size;
1118 } 1078 }
1119 1079
1120 if (is_indirect_le_ih(p_le_ih)) 1080 if (is_indirect_le_ih(p_le_ih))
1121 n_del_size = (n_del_size / UNFM_P_SIZE) * (PATH_PLAST_BUFFER(p_s_tb->tb_path)->b_size); // - get_ih_free_space (p_le_ih); 1081 del_size = (del_size / UNFM_P_SIZE) *
1122 return n_del_size; 1082 (PATH_PLAST_BUFFER(tb->tb_path)->b_size);
1083 return del_size;
1123} 1084}
1124 1085
1125static void init_tb_struct(struct reiserfs_transaction_handle *th, 1086static void init_tb_struct(struct reiserfs_transaction_handle *th,
1126 struct tree_balance *p_s_tb, 1087 struct tree_balance *tb,
1127 struct super_block *p_s_sb, 1088 struct super_block *sb,
1128 struct treepath *p_s_path, int n_size) 1089 struct treepath *path, int size)
1129{ 1090{
1130 1091
1131 BUG_ON(!th->t_trans_id); 1092 BUG_ON(!th->t_trans_id);
1132 1093
1133 memset(p_s_tb, '\0', sizeof(struct tree_balance)); 1094 memset(tb, '\0', sizeof(struct tree_balance));
1134 p_s_tb->transaction_handle = th; 1095 tb->transaction_handle = th;
1135 p_s_tb->tb_sb = p_s_sb; 1096 tb->tb_sb = sb;
1136 p_s_tb->tb_path = p_s_path; 1097 tb->tb_path = path;
1137 PATH_OFFSET_PBUFFER(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = NULL; 1098 PATH_OFFSET_PBUFFER(path, ILLEGAL_PATH_ELEMENT_OFFSET) = NULL;
1138 PATH_OFFSET_POSITION(p_s_path, ILLEGAL_PATH_ELEMENT_OFFSET) = 0; 1099 PATH_OFFSET_POSITION(path, ILLEGAL_PATH_ELEMENT_OFFSET) = 0;
1139 p_s_tb->insert_size[0] = n_size; 1100 tb->insert_size[0] = size;
1140} 1101}
1141 1102
1142void padd_item(char *item, int total_length, int length) 1103void padd_item(char *item, int total_length, int length)
@@ -1175,73 +1136,77 @@ char head2type(struct item_head *ih)
1175} 1136}
1176#endif 1137#endif
1177 1138
1178/* Delete object item. */ 1139/* Delete object item.
1179int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath *p_s_path, /* Path to the deleted item. */ 1140 * th - active transaction handle
1180 const struct cpu_key *p_s_item_key, /* Key to search for the deleted item. */ 1141 * path - path to the deleted item
1181 struct inode *p_s_inode, /* inode is here just to update i_blocks and quotas */ 1142 * item_key - key to search for the deleted item
1182 struct buffer_head *p_s_un_bh) 1143 * indode - used for updating i_blocks and quotas
1183{ /* NULL or unformatted node pointer. */ 1144 * un_bh - NULL or unformatted node pointer
1184 struct super_block *p_s_sb = p_s_inode->i_sb; 1145 */
1146int reiserfs_delete_item(struct reiserfs_transaction_handle *th,
1147 struct treepath *path, const struct cpu_key *item_key,
1148 struct inode *inode, struct buffer_head *un_bh)
1149{
1150 struct super_block *sb = inode->i_sb;
1185 struct tree_balance s_del_balance; 1151 struct tree_balance s_del_balance;
1186 struct item_head s_ih; 1152 struct item_head s_ih;
1187 struct item_head *q_ih; 1153 struct item_head *q_ih;
1188 int quota_cut_bytes; 1154 int quota_cut_bytes;
1189 int n_ret_value, n_del_size, n_removed; 1155 int ret_value, del_size, removed;
1190 1156
1191#ifdef CONFIG_REISERFS_CHECK 1157#ifdef CONFIG_REISERFS_CHECK
1192 char c_mode; 1158 char mode;
1193 int n_iter = 0; 1159 int iter = 0;
1194#endif 1160#endif
1195 1161
1196 BUG_ON(!th->t_trans_id); 1162 BUG_ON(!th->t_trans_id);
1197 1163
1198 init_tb_struct(th, &s_del_balance, p_s_sb, p_s_path, 1164 init_tb_struct(th, &s_del_balance, sb, path,
1199 0 /*size is unknown */ ); 1165 0 /*size is unknown */ );
1200 1166
1201 while (1) { 1167 while (1) {
1202 n_removed = 0; 1168 removed = 0;
1203 1169
1204#ifdef CONFIG_REISERFS_CHECK 1170#ifdef CONFIG_REISERFS_CHECK
1205 n_iter++; 1171 iter++;
1206 c_mode = 1172 mode =
1207#endif 1173#endif
1208 prepare_for_delete_or_cut(th, p_s_inode, p_s_path, 1174 prepare_for_delete_or_cut(th, inode, path,
1209 p_s_item_key, &n_removed, 1175 item_key, &removed,
1210 &n_del_size, 1176 &del_size,
1211 max_reiserfs_offset(p_s_inode)); 1177 max_reiserfs_offset(inode));
1212 1178
1213 RFALSE(c_mode != M_DELETE, "PAP-5320: mode must be M_DELETE"); 1179 RFALSE(mode != M_DELETE, "PAP-5320: mode must be M_DELETE");
1214 1180
1215 copy_item_head(&s_ih, PATH_PITEM_HEAD(p_s_path)); 1181 copy_item_head(&s_ih, PATH_PITEM_HEAD(path));
1216 s_del_balance.insert_size[0] = n_del_size; 1182 s_del_balance.insert_size[0] = del_size;
1217 1183
1218 n_ret_value = fix_nodes(M_DELETE, &s_del_balance, NULL, NULL); 1184 ret_value = fix_nodes(M_DELETE, &s_del_balance, NULL, NULL);
1219 if (n_ret_value != REPEAT_SEARCH) 1185 if (ret_value != REPEAT_SEARCH)
1220 break; 1186 break;
1221 1187
1222 PROC_INFO_INC(p_s_sb, delete_item_restarted); 1188 PROC_INFO_INC(sb, delete_item_restarted);
1223 1189
1224 // file system changed, repeat search 1190 // file system changed, repeat search
1225 n_ret_value = 1191 ret_value =
1226 search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path); 1192 search_for_position_by_key(sb, item_key, path);
1227 if (n_ret_value == IO_ERROR) 1193 if (ret_value == IO_ERROR)
1228 break; 1194 break;
1229 if (n_ret_value == FILE_NOT_FOUND) { 1195 if (ret_value == FILE_NOT_FOUND) {
1230 reiserfs_warning(p_s_sb, 1196 reiserfs_warning(sb, "vs-5340",
1231 "vs-5340: reiserfs_delete_item: "
1232 "no items of the file %K found", 1197 "no items of the file %K found",
1233 p_s_item_key); 1198 item_key);
1234 break; 1199 break;
1235 } 1200 }
1236 } /* while (1) */ 1201 } /* while (1) */
1237 1202
1238 if (n_ret_value != CARRY_ON) { 1203 if (ret_value != CARRY_ON) {
1239 unfix_nodes(&s_del_balance); 1204 unfix_nodes(&s_del_balance);
1240 return 0; 1205 return 0;
1241 } 1206 }
1242 // reiserfs_delete_item returns item length when success 1207 // reiserfs_delete_item returns item length when success
1243 n_ret_value = calc_deleted_bytes_number(&s_del_balance, M_DELETE); 1208 ret_value = calc_deleted_bytes_number(&s_del_balance, M_DELETE);
1244 q_ih = get_ih(p_s_path); 1209 q_ih = get_ih(path);
1245 quota_cut_bytes = ih_item_len(q_ih); 1210 quota_cut_bytes = ih_item_len(q_ih);
1246 1211
1247 /* hack so the quota code doesn't have to guess if the file 1212 /* hack so the quota code doesn't have to guess if the file
@@ -1250,15 +1215,15 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
1250 ** split into multiple items, and we only want to decrement for 1215 ** split into multiple items, and we only want to decrement for
1251 ** the unfm node once 1216 ** the unfm node once
1252 */ 1217 */
1253 if (!S_ISLNK(p_s_inode->i_mode) && is_direct_le_ih(q_ih)) { 1218 if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(q_ih)) {
1254 if ((le_ih_k_offset(q_ih) & (p_s_sb->s_blocksize - 1)) == 1) { 1219 if ((le_ih_k_offset(q_ih) & (sb->s_blocksize - 1)) == 1) {
1255 quota_cut_bytes = p_s_sb->s_blocksize + UNFM_P_SIZE; 1220 quota_cut_bytes = sb->s_blocksize + UNFM_P_SIZE;
1256 } else { 1221 } else {
1257 quota_cut_bytes = 0; 1222 quota_cut_bytes = 0;
1258 } 1223 }
1259 } 1224 }
1260 1225
1261 if (p_s_un_bh) { 1226 if (un_bh) {
1262 int off; 1227 int off;
1263 char *data; 1228 char *data;
1264 1229
@@ -1276,31 +1241,31 @@ int reiserfs_delete_item(struct reiserfs_transaction_handle *th, struct treepath
1276 ** The unformatted node must be dirtied later on. We can't be 1241 ** The unformatted node must be dirtied later on. We can't be
1277 ** sure here if the entire tail has been deleted yet. 1242 ** sure here if the entire tail has been deleted yet.
1278 ** 1243 **
1279 ** p_s_un_bh is from the page cache (all unformatted nodes are 1244 ** un_bh is from the page cache (all unformatted nodes are
1280 ** from the page cache) and might be a highmem page. So, we 1245 ** from the page cache) and might be a highmem page. So, we
1281 ** can't use p_s_un_bh->b_data. 1246 ** can't use un_bh->b_data.
1282 ** -clm 1247 ** -clm
1283 */ 1248 */
1284 1249
1285 data = kmap_atomic(p_s_un_bh->b_page, KM_USER0); 1250 data = kmap_atomic(un_bh->b_page, KM_USER0);
1286 off = ((le_ih_k_offset(&s_ih) - 1) & (PAGE_CACHE_SIZE - 1)); 1251 off = ((le_ih_k_offset(&s_ih) - 1) & (PAGE_CACHE_SIZE - 1));
1287 memcpy(data + off, 1252 memcpy(data + off,
1288 B_I_PITEM(PATH_PLAST_BUFFER(p_s_path), &s_ih), 1253 B_I_PITEM(PATH_PLAST_BUFFER(path), &s_ih),
1289 n_ret_value); 1254 ret_value);
1290 kunmap_atomic(data, KM_USER0); 1255 kunmap_atomic(data, KM_USER0);
1291 } 1256 }
1292 /* Perform balancing after all resources have been collected at once. */ 1257 /* Perform balancing after all resources have been collected at once. */
1293 do_balance(&s_del_balance, NULL, NULL, M_DELETE); 1258 do_balance(&s_del_balance, NULL, NULL, M_DELETE);
1294 1259
1295#ifdef REISERQUOTA_DEBUG 1260#ifdef REISERQUOTA_DEBUG
1296 reiserfs_debug(p_s_sb, REISERFS_DEBUG_CODE, 1261 reiserfs_debug(sb, REISERFS_DEBUG_CODE,
1297 "reiserquota delete_item(): freeing %u, id=%u type=%c", 1262 "reiserquota delete_item(): freeing %u, id=%u type=%c",
1298 quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih)); 1263 quota_cut_bytes, inode->i_uid, head2type(&s_ih));
1299#endif 1264#endif
1300 vfs_dq_free_space_nodirty(p_s_inode, quota_cut_bytes); 1265 vfs_dq_free_space_nodirty(inode, quota_cut_bytes);
1301 1266
1302 /* Return deleted body length */ 1267 /* Return deleted body length */
1303 return n_ret_value; 1268 return ret_value;
1304} 1269}
1305 1270
1306/* Summary Of Mechanisms For Handling Collisions Between Processes: 1271/* Summary Of Mechanisms For Handling Collisions Between Processes:
@@ -1338,10 +1303,9 @@ void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
1338 while (1) { 1303 while (1) {
1339 retval = search_item(th->t_super, &cpu_key, &path); 1304 retval = search_item(th->t_super, &cpu_key, &path);
1340 if (retval == IO_ERROR) { 1305 if (retval == IO_ERROR) {
1341 reiserfs_warning(th->t_super, 1306 reiserfs_error(th->t_super, "vs-5350",
1342 "vs-5350: reiserfs_delete_solid_item: " 1307 "i/o failure occurred trying "
1343 "i/o failure occurred trying to delete %K", 1308 "to delete %K", &cpu_key);
1344 &cpu_key);
1345 break; 1309 break;
1346 } 1310 }
1347 if (retval != ITEM_FOUND) { 1311 if (retval != ITEM_FOUND) {
@@ -1355,9 +1319,8 @@ void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
1355 GET_GENERATION_NUMBER(le_key_k_offset 1319 GET_GENERATION_NUMBER(le_key_k_offset
1356 (le_key_version(key), 1320 (le_key_version(key),
1357 key)) == 1)) 1321 key)) == 1))
1358 reiserfs_warning(th->t_super, 1322 reiserfs_warning(th->t_super, "vs-5355",
1359 "vs-5355: reiserfs_delete_solid_item: %k not found", 1323 "%k not found", key);
1360 key);
1361 break; 1324 break;
1362 } 1325 }
1363 if (!tb_init) { 1326 if (!tb_init) {
@@ -1389,8 +1352,7 @@ void reiserfs_delete_solid_item(struct reiserfs_transaction_handle *th,
1389 break; 1352 break;
1390 } 1353 }
1391 // IO_ERROR, NO_DISK_SPACE, etc 1354 // IO_ERROR, NO_DISK_SPACE, etc
1392 reiserfs_warning(th->t_super, 1355 reiserfs_warning(th->t_super, "vs-5360",
1393 "vs-5360: reiserfs_delete_solid_item: "
1394 "could not delete %K due to fix_nodes failure", 1356 "could not delete %K due to fix_nodes failure",
1395 &cpu_key); 1357 &cpu_key);
1396 unfix_nodes(&tb); 1358 unfix_nodes(&tb);
@@ -1462,36 +1424,37 @@ static void unmap_buffers(struct page *page, loff_t pos)
1462} 1424}
1463 1425
1464static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th, 1426static int maybe_indirect_to_direct(struct reiserfs_transaction_handle *th,
1465 struct inode *p_s_inode, 1427 struct inode *inode,
1466 struct page *page, 1428 struct page *page,
1467 struct treepath *p_s_path, 1429 struct treepath *path,
1468 const struct cpu_key *p_s_item_key, 1430 const struct cpu_key *item_key,
1469 loff_t n_new_file_size, char *p_c_mode) 1431 loff_t new_file_size, char *mode)
1470{ 1432{
1471 struct super_block *p_s_sb = p_s_inode->i_sb; 1433 struct super_block *sb = inode->i_sb;
1472 int n_block_size = p_s_sb->s_blocksize; 1434 int block_size = sb->s_blocksize;
1473 int cut_bytes; 1435 int cut_bytes;
1474 BUG_ON(!th->t_trans_id); 1436 BUG_ON(!th->t_trans_id);
1475 BUG_ON(n_new_file_size != p_s_inode->i_size); 1437 BUG_ON(new_file_size != inode->i_size);
1476 1438
1477 /* the page being sent in could be NULL if there was an i/o error 1439 /* the page being sent in could be NULL if there was an i/o error
1478 ** reading in the last block. The user will hit problems trying to 1440 ** reading in the last block. The user will hit problems trying to
1479 ** read the file, but for now we just skip the indirect2direct 1441 ** read the file, but for now we just skip the indirect2direct
1480 */ 1442 */
1481 if (atomic_read(&p_s_inode->i_count) > 1 || 1443 if (atomic_read(&inode->i_count) > 1 ||
1482 !tail_has_to_be_packed(p_s_inode) || 1444 !tail_has_to_be_packed(inode) ||
1483 !page || (REISERFS_I(p_s_inode)->i_flags & i_nopack_mask)) { 1445 !page || (REISERFS_I(inode)->i_flags & i_nopack_mask)) {
1484 // leave tail in an unformatted node 1446 /* leave tail in an unformatted node */
1485 *p_c_mode = M_SKIP_BALANCING; 1447 *mode = M_SKIP_BALANCING;
1486 cut_bytes = 1448 cut_bytes =
1487 n_block_size - (n_new_file_size & (n_block_size - 1)); 1449 block_size - (new_file_size & (block_size - 1));
1488 pathrelse(p_s_path); 1450 pathrelse(path);
1489 return cut_bytes; 1451 return cut_bytes;
1490 } 1452 }
1491 /* Permorm the conversion to a direct_item. */ 1453 /* Perform the conversion to a direct_item. */
1492 /*return indirect_to_direct (p_s_inode, p_s_path, p_s_item_key, n_new_file_size, p_c_mode); */ 1454 /* return indirect_to_direct(inode, path, item_key,
1493 return indirect2direct(th, p_s_inode, page, p_s_path, p_s_item_key, 1455 new_file_size, mode); */
1494 n_new_file_size, p_c_mode); 1456 return indirect2direct(th, inode, page, path, item_key,
1457 new_file_size, mode);
1495} 1458}
1496 1459
1497/* we did indirect_to_direct conversion. And we have inserted direct 1460/* we did indirect_to_direct conversion. And we have inserted direct
@@ -1515,8 +1478,8 @@ static void indirect_to_direct_roll_back(struct reiserfs_transaction_handle *th,
1515 /* look for the last byte of the tail */ 1478 /* look for the last byte of the tail */
1516 if (search_for_position_by_key(inode->i_sb, &tail_key, path) == 1479 if (search_for_position_by_key(inode->i_sb, &tail_key, path) ==
1517 POSITION_NOT_FOUND) 1480 POSITION_NOT_FOUND)
1518 reiserfs_panic(inode->i_sb, 1481 reiserfs_panic(inode->i_sb, "vs-5615",
1519 "vs-5615: indirect_to_direct_roll_back: found invalid item"); 1482 "found invalid item");
1520 RFALSE(path->pos_in_item != 1483 RFALSE(path->pos_in_item !=
1521 ih_item_len(PATH_PITEM_HEAD(path)) - 1, 1484 ih_item_len(PATH_PITEM_HEAD(path)) - 1,
1522 "vs-5616: appended bytes found"); 1485 "vs-5616: appended bytes found");
@@ -1533,38 +1496,39 @@ static void indirect_to_direct_roll_back(struct reiserfs_transaction_handle *th,
1533 set_cpu_key_k_offset(&tail_key, 1496 set_cpu_key_k_offset(&tail_key,
1534 cpu_key_k_offset(&tail_key) - removed); 1497 cpu_key_k_offset(&tail_key) - removed);
1535 } 1498 }
1536 reiserfs_warning(inode->i_sb, 1499 reiserfs_warning(inode->i_sb, "reiserfs-5091", "indirect_to_direct "
1537 "indirect_to_direct_roll_back: indirect_to_direct conversion has been rolled back due to lack of disk space"); 1500 "conversion has been rolled back due to "
1501 "lack of disk space");
1538 //mark_file_without_tail (inode); 1502 //mark_file_without_tail (inode);
1539 mark_inode_dirty(inode); 1503 mark_inode_dirty(inode);
1540} 1504}
1541 1505
1542/* (Truncate or cut entry) or delete object item. Returns < 0 on failure */ 1506/* (Truncate or cut entry) or delete object item. Returns < 0 on failure */
1543int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th, 1507int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
1544 struct treepath *p_s_path, 1508 struct treepath *path,
1545 struct cpu_key *p_s_item_key, 1509 struct cpu_key *item_key,
1546 struct inode *p_s_inode, 1510 struct inode *inode,
1547 struct page *page, loff_t n_new_file_size) 1511 struct page *page, loff_t new_file_size)
1548{ 1512{
1549 struct super_block *p_s_sb = p_s_inode->i_sb; 1513 struct super_block *sb = inode->i_sb;
1550 /* Every function which is going to call do_balance must first 1514 /* Every function which is going to call do_balance must first
1551 create a tree_balance structure. Then it must fill up this 1515 create a tree_balance structure. Then it must fill up this
1552 structure by using the init_tb_struct and fix_nodes functions. 1516 structure by using the init_tb_struct and fix_nodes functions.
1553 After that we can make tree balancing. */ 1517 After that we can make tree balancing. */
1554 struct tree_balance s_cut_balance; 1518 struct tree_balance s_cut_balance;
1555 struct item_head *p_le_ih; 1519 struct item_head *p_le_ih;
1556 int n_cut_size = 0, /* Amount to be cut. */ 1520 int cut_size = 0, /* Amount to be cut. */
1557 n_ret_value = CARRY_ON, n_removed = 0, /* Number of the removed unformatted nodes. */ 1521 ret_value = CARRY_ON, removed = 0, /* Number of the removed unformatted nodes. */
1558 n_is_inode_locked = 0; 1522 is_inode_locked = 0;
1559 char c_mode; /* Mode of the balance. */ 1523 char mode; /* Mode of the balance. */
1560 int retval2 = -1; 1524 int retval2 = -1;
1561 int quota_cut_bytes; 1525 int quota_cut_bytes;
1562 loff_t tail_pos = 0; 1526 loff_t tail_pos = 0;
1563 1527
1564 BUG_ON(!th->t_trans_id); 1528 BUG_ON(!th->t_trans_id);
1565 1529
1566 init_tb_struct(th, &s_cut_balance, p_s_inode->i_sb, p_s_path, 1530 init_tb_struct(th, &s_cut_balance, inode->i_sb, path,
1567 n_cut_size); 1531 cut_size);
1568 1532
1569 /* Repeat this loop until we either cut the item without needing 1533 /* Repeat this loop until we either cut the item without needing
1570 to balance, or we fix_nodes without schedule occurring */ 1534 to balance, or we fix_nodes without schedule occurring */
@@ -1574,144 +1538,142 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
1574 free unformatted nodes which are pointed to by the cut 1538 free unformatted nodes which are pointed to by the cut
1575 pointers. */ 1539 pointers. */
1576 1540
1577 c_mode = 1541 mode =
1578 prepare_for_delete_or_cut(th, p_s_inode, p_s_path, 1542 prepare_for_delete_or_cut(th, inode, path,
1579 p_s_item_key, &n_removed, 1543 item_key, &removed,
1580 &n_cut_size, n_new_file_size); 1544 &cut_size, new_file_size);
1581 if (c_mode == M_CONVERT) { 1545 if (mode == M_CONVERT) {
1582 /* convert last unformatted node to direct item or leave 1546 /* convert last unformatted node to direct item or leave
1583 tail in the unformatted node */ 1547 tail in the unformatted node */
1584 RFALSE(n_ret_value != CARRY_ON, 1548 RFALSE(ret_value != CARRY_ON,
1585 "PAP-5570: can not convert twice"); 1549 "PAP-5570: can not convert twice");
1586 1550
1587 n_ret_value = 1551 ret_value =
1588 maybe_indirect_to_direct(th, p_s_inode, page, 1552 maybe_indirect_to_direct(th, inode, page,
1589 p_s_path, p_s_item_key, 1553 path, item_key,
1590 n_new_file_size, &c_mode); 1554 new_file_size, &mode);
1591 if (c_mode == M_SKIP_BALANCING) 1555 if (mode == M_SKIP_BALANCING)
1592 /* tail has been left in the unformatted node */ 1556 /* tail has been left in the unformatted node */
1593 return n_ret_value; 1557 return ret_value;
1594 1558
1595 n_is_inode_locked = 1; 1559 is_inode_locked = 1;
1596 1560
1597 /* removing of last unformatted node will change value we 1561 /* removing of last unformatted node will change value we
1598 have to return to truncate. Save it */ 1562 have to return to truncate. Save it */
1599 retval2 = n_ret_value; 1563 retval2 = ret_value;
1600 /*retval2 = p_s_sb->s_blocksize - (n_new_file_size & (p_s_sb->s_blocksize - 1)); */ 1564 /*retval2 = sb->s_blocksize - (new_file_size & (sb->s_blocksize - 1)); */
1601 1565
1602 /* So, we have performed the first part of the conversion: 1566 /* So, we have performed the first part of the conversion:
1603 inserting the new direct item. Now we are removing the 1567 inserting the new direct item. Now we are removing the
1604 last unformatted node pointer. Set key to search for 1568 last unformatted node pointer. Set key to search for
1605 it. */ 1569 it. */
1606 set_cpu_key_k_type(p_s_item_key, TYPE_INDIRECT); 1570 set_cpu_key_k_type(item_key, TYPE_INDIRECT);
1607 p_s_item_key->key_length = 4; 1571 item_key->key_length = 4;
1608 n_new_file_size -= 1572 new_file_size -=
1609 (n_new_file_size & (p_s_sb->s_blocksize - 1)); 1573 (new_file_size & (sb->s_blocksize - 1));
1610 tail_pos = n_new_file_size; 1574 tail_pos = new_file_size;
1611 set_cpu_key_k_offset(p_s_item_key, n_new_file_size + 1); 1575 set_cpu_key_k_offset(item_key, new_file_size + 1);
1612 if (search_for_position_by_key 1576 if (search_for_position_by_key
1613 (p_s_sb, p_s_item_key, 1577 (sb, item_key,
1614 p_s_path) == POSITION_NOT_FOUND) { 1578 path) == POSITION_NOT_FOUND) {
1615 print_block(PATH_PLAST_BUFFER(p_s_path), 3, 1579 print_block(PATH_PLAST_BUFFER(path), 3,
1616 PATH_LAST_POSITION(p_s_path) - 1, 1580 PATH_LAST_POSITION(path) - 1,
1617 PATH_LAST_POSITION(p_s_path) + 1); 1581 PATH_LAST_POSITION(path) + 1);
1618 reiserfs_panic(p_s_sb, 1582 reiserfs_panic(sb, "PAP-5580", "item to "
1619 "PAP-5580: reiserfs_cut_from_item: item to convert does not exist (%K)", 1583 "convert does not exist (%K)",
1620 p_s_item_key); 1584 item_key);
1621 } 1585 }
1622 continue; 1586 continue;
1623 } 1587 }
1624 if (n_cut_size == 0) { 1588 if (cut_size == 0) {
1625 pathrelse(p_s_path); 1589 pathrelse(path);
1626 return 0; 1590 return 0;
1627 } 1591 }
1628 1592
1629 s_cut_balance.insert_size[0] = n_cut_size; 1593 s_cut_balance.insert_size[0] = cut_size;
1630 1594
1631 n_ret_value = fix_nodes(c_mode, &s_cut_balance, NULL, NULL); 1595 ret_value = fix_nodes(mode, &s_cut_balance, NULL, NULL);
1632 if (n_ret_value != REPEAT_SEARCH) 1596 if (ret_value != REPEAT_SEARCH)
1633 break; 1597 break;
1634 1598
1635 PROC_INFO_INC(p_s_sb, cut_from_item_restarted); 1599 PROC_INFO_INC(sb, cut_from_item_restarted);
1636 1600
1637 n_ret_value = 1601 ret_value =
1638 search_for_position_by_key(p_s_sb, p_s_item_key, p_s_path); 1602 search_for_position_by_key(sb, item_key, path);
1639 if (n_ret_value == POSITION_FOUND) 1603 if (ret_value == POSITION_FOUND)
1640 continue; 1604 continue;
1641 1605
1642 reiserfs_warning(p_s_sb, 1606 reiserfs_warning(sb, "PAP-5610", "item %K not found",
1643 "PAP-5610: reiserfs_cut_from_item: item %K not found", 1607 item_key);
1644 p_s_item_key);
1645 unfix_nodes(&s_cut_balance); 1608 unfix_nodes(&s_cut_balance);
1646 return (n_ret_value == IO_ERROR) ? -EIO : -ENOENT; 1609 return (ret_value == IO_ERROR) ? -EIO : -ENOENT;
1647 } /* while */ 1610 } /* while */
1648 1611
1649 // check fix_nodes results (IO_ERROR or NO_DISK_SPACE) 1612 // check fix_nodes results (IO_ERROR or NO_DISK_SPACE)
1650 if (n_ret_value != CARRY_ON) { 1613 if (ret_value != CARRY_ON) {
1651 if (n_is_inode_locked) { 1614 if (is_inode_locked) {
1652 // FIXME: this seems to be not needed: we are always able 1615 // FIXME: this seems to be not needed: we are always able
1653 // to cut item 1616 // to cut item
1654 indirect_to_direct_roll_back(th, p_s_inode, p_s_path); 1617 indirect_to_direct_roll_back(th, inode, path);
1655 } 1618 }
1656 if (n_ret_value == NO_DISK_SPACE) 1619 if (ret_value == NO_DISK_SPACE)
1657 reiserfs_warning(p_s_sb, "NO_DISK_SPACE"); 1620 reiserfs_warning(sb, "reiserfs-5092",
1621 "NO_DISK_SPACE");
1658 unfix_nodes(&s_cut_balance); 1622 unfix_nodes(&s_cut_balance);
1659 return -EIO; 1623 return -EIO;
1660 } 1624 }
1661 1625
1662 /* go ahead and perform balancing */ 1626 /* go ahead and perform balancing */
1663 1627
1664 RFALSE(c_mode == M_PASTE || c_mode == M_INSERT, "invalid mode"); 1628 RFALSE(mode == M_PASTE || mode == M_INSERT, "invalid mode");
1665 1629
1666 /* Calculate number of bytes that need to be cut from the item. */ 1630 /* Calculate number of bytes that need to be cut from the item. */
1667 quota_cut_bytes = 1631 quota_cut_bytes =
1668 (c_mode == 1632 (mode ==
1669 M_DELETE) ? ih_item_len(get_ih(p_s_path)) : -s_cut_balance. 1633 M_DELETE) ? ih_item_len(get_ih(path)) : -s_cut_balance.
1670 insert_size[0]; 1634 insert_size[0];
1671 if (retval2 == -1) 1635 if (retval2 == -1)
1672 n_ret_value = calc_deleted_bytes_number(&s_cut_balance, c_mode); 1636 ret_value = calc_deleted_bytes_number(&s_cut_balance, mode);
1673 else 1637 else
1674 n_ret_value = retval2; 1638 ret_value = retval2;
1675 1639
1676 /* For direct items, we only change the quota when deleting the last 1640 /* For direct items, we only change the quota when deleting the last
1677 ** item. 1641 ** item.
1678 */ 1642 */
1679 p_le_ih = PATH_PITEM_HEAD(s_cut_balance.tb_path); 1643 p_le_ih = PATH_PITEM_HEAD(s_cut_balance.tb_path);
1680 if (!S_ISLNK(p_s_inode->i_mode) && is_direct_le_ih(p_le_ih)) { 1644 if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(p_le_ih)) {
1681 if (c_mode == M_DELETE && 1645 if (mode == M_DELETE &&
1682 (le_ih_k_offset(p_le_ih) & (p_s_sb->s_blocksize - 1)) == 1646 (le_ih_k_offset(p_le_ih) & (sb->s_blocksize - 1)) ==
1683 1) { 1647 1) {
1684 // FIXME: this is to keep 3.5 happy 1648 // FIXME: this is to keep 3.5 happy
1685 REISERFS_I(p_s_inode)->i_first_direct_byte = U32_MAX; 1649 REISERFS_I(inode)->i_first_direct_byte = U32_MAX;
1686 quota_cut_bytes = p_s_sb->s_blocksize + UNFM_P_SIZE; 1650 quota_cut_bytes = sb->s_blocksize + UNFM_P_SIZE;
1687 } else { 1651 } else {
1688 quota_cut_bytes = 0; 1652 quota_cut_bytes = 0;
1689 } 1653 }
1690 } 1654 }
1691#ifdef CONFIG_REISERFS_CHECK 1655#ifdef CONFIG_REISERFS_CHECK
1692 if (n_is_inode_locked) { 1656 if (is_inode_locked) {
1693 struct item_head *le_ih = 1657 struct item_head *le_ih =
1694 PATH_PITEM_HEAD(s_cut_balance.tb_path); 1658 PATH_PITEM_HEAD(s_cut_balance.tb_path);
1695 /* we are going to complete indirect2direct conversion. Make 1659 /* we are going to complete indirect2direct conversion. Make
1696 sure, that we exactly remove last unformatted node pointer 1660 sure, that we exactly remove last unformatted node pointer
1697 of the item */ 1661 of the item */
1698 if (!is_indirect_le_ih(le_ih)) 1662 if (!is_indirect_le_ih(le_ih))
1699 reiserfs_panic(p_s_sb, 1663 reiserfs_panic(sb, "vs-5652",
1700 "vs-5652: reiserfs_cut_from_item: "
1701 "item must be indirect %h", le_ih); 1664 "item must be indirect %h", le_ih);
1702 1665
1703 if (c_mode == M_DELETE && ih_item_len(le_ih) != UNFM_P_SIZE) 1666 if (mode == M_DELETE && ih_item_len(le_ih) != UNFM_P_SIZE)
1704 reiserfs_panic(p_s_sb, 1667 reiserfs_panic(sb, "vs-5653", "completing "
1705 "vs-5653: reiserfs_cut_from_item: " 1668 "indirect2direct conversion indirect "
1706 "completing indirect2direct conversion indirect item %h " 1669 "item %h being deleted must be of "
1707 "being deleted must be of 4 byte long", 1670 "4 byte long", le_ih);
1708 le_ih);
1709 1671
1710 if (c_mode == M_CUT 1672 if (mode == M_CUT
1711 && s_cut_balance.insert_size[0] != -UNFM_P_SIZE) { 1673 && s_cut_balance.insert_size[0] != -UNFM_P_SIZE) {
1712 reiserfs_panic(p_s_sb, 1674 reiserfs_panic(sb, "vs-5654", "can not complete "
1713 "vs-5654: reiserfs_cut_from_item: " 1675 "indirect2direct conversion of %h "
1714 "can not complete indirect2direct conversion of %h (CUT, insert_size==%d)", 1676 "(CUT, insert_size==%d)",
1715 le_ih, s_cut_balance.insert_size[0]); 1677 le_ih, s_cut_balance.insert_size[0]);
1716 } 1678 }
1717 /* it would be useful to make sure, that right neighboring 1679 /* it would be useful to make sure, that right neighboring
@@ -1719,23 +1681,23 @@ int reiserfs_cut_from_item(struct reiserfs_transaction_handle *th,
1719 } 1681 }
1720#endif 1682#endif
1721 1683
1722 do_balance(&s_cut_balance, NULL, NULL, c_mode); 1684 do_balance(&s_cut_balance, NULL, NULL, mode);
1723 if (n_is_inode_locked) { 1685 if (is_inode_locked) {
1724 /* we've done an indirect->direct conversion. when the data block 1686 /* we've done an indirect->direct conversion. when the data block
1725 ** was freed, it was removed from the list of blocks that must 1687 ** was freed, it was removed from the list of blocks that must
1726 ** be flushed before the transaction commits, make sure to 1688 ** be flushed before the transaction commits, make sure to
1727 ** unmap and invalidate it 1689 ** unmap and invalidate it
1728 */ 1690 */
1729 unmap_buffers(page, tail_pos); 1691 unmap_buffers(page, tail_pos);
1730 REISERFS_I(p_s_inode)->i_flags &= ~i_pack_on_close_mask; 1692 REISERFS_I(inode)->i_flags &= ~i_pack_on_close_mask;
1731 } 1693 }
1732#ifdef REISERQUOTA_DEBUG 1694#ifdef REISERQUOTA_DEBUG
1733 reiserfs_debug(p_s_inode->i_sb, REISERFS_DEBUG_CODE, 1695 reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
1734 "reiserquota cut_from_item(): freeing %u id=%u type=%c", 1696 "reiserquota cut_from_item(): freeing %u id=%u type=%c",
1735 quota_cut_bytes, p_s_inode->i_uid, '?'); 1697 quota_cut_bytes, inode->i_uid, '?');
1736#endif 1698#endif
1737 vfs_dq_free_space_nodirty(p_s_inode, quota_cut_bytes); 1699 vfs_dq_free_space_nodirty(inode, quota_cut_bytes);
1738 return n_ret_value; 1700 return ret_value;
1739} 1701}
1740 1702
1741static void truncate_directory(struct reiserfs_transaction_handle *th, 1703static void truncate_directory(struct reiserfs_transaction_handle *th,
@@ -1743,8 +1705,7 @@ static void truncate_directory(struct reiserfs_transaction_handle *th,
1743{ 1705{
1744 BUG_ON(!th->t_trans_id); 1706 BUG_ON(!th->t_trans_id);
1745 if (inode->i_nlink) 1707 if (inode->i_nlink)
1746 reiserfs_warning(inode->i_sb, 1708 reiserfs_error(inode->i_sb, "vs-5655", "link count != 0");
1747 "vs-5655: truncate_directory: link count != 0");
1748 1709
1749 set_le_key_k_offset(KEY_FORMAT_3_5, INODE_PKEY(inode), DOT_OFFSET); 1710 set_le_key_k_offset(KEY_FORMAT_3_5, INODE_PKEY(inode), DOT_OFFSET);
1750 set_le_key_k_type(KEY_FORMAT_3_5, INODE_PKEY(inode), TYPE_DIRENTRY); 1711 set_le_key_k_type(KEY_FORMAT_3_5, INODE_PKEY(inode), TYPE_DIRENTRY);
@@ -1756,8 +1717,8 @@ static void truncate_directory(struct reiserfs_transaction_handle *th,
1756 1717
1757/* Truncate file to the new size. Note, this must be called with a transaction 1718/* Truncate file to the new size. Note, this must be called with a transaction
1758 already started */ 1719 already started */
1759int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p_s_inode, /* ->i_size contains new 1720int reiserfs_do_truncate(struct reiserfs_transaction_handle *th,
1760 size */ 1721 struct inode *inode, /* ->i_size contains new size */
1761 struct page *page, /* up to date for last block */ 1722 struct page *page, /* up to date for last block */
1762 int update_timestamps /* when it is called by 1723 int update_timestamps /* when it is called by
1763 file_release to convert 1724 file_release to convert
@@ -1768,47 +1729,45 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
1768 INITIALIZE_PATH(s_search_path); /* Path to the current object item. */ 1729 INITIALIZE_PATH(s_search_path); /* Path to the current object item. */
1769 struct item_head *p_le_ih; /* Pointer to an item header. */ 1730 struct item_head *p_le_ih; /* Pointer to an item header. */
1770 struct cpu_key s_item_key; /* Key to search for a previous file item. */ 1731 struct cpu_key s_item_key; /* Key to search for a previous file item. */
1771 loff_t n_file_size, /* Old file size. */ 1732 loff_t file_size, /* Old file size. */
1772 n_new_file_size; /* New file size. */ 1733 new_file_size; /* New file size. */
1773 int n_deleted; /* Number of deleted or truncated bytes. */ 1734 int deleted; /* Number of deleted or truncated bytes. */
1774 int retval; 1735 int retval;
1775 int err = 0; 1736 int err = 0;
1776 1737
1777 BUG_ON(!th->t_trans_id); 1738 BUG_ON(!th->t_trans_id);
1778 if (! 1739 if (!
1779 (S_ISREG(p_s_inode->i_mode) || S_ISDIR(p_s_inode->i_mode) 1740 (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode)
1780 || S_ISLNK(p_s_inode->i_mode))) 1741 || S_ISLNK(inode->i_mode)))
1781 return 0; 1742 return 0;
1782 1743
1783 if (S_ISDIR(p_s_inode->i_mode)) { 1744 if (S_ISDIR(inode->i_mode)) {
1784 // deletion of directory - no need to update timestamps 1745 // deletion of directory - no need to update timestamps
1785 truncate_directory(th, p_s_inode); 1746 truncate_directory(th, inode);
1786 return 0; 1747 return 0;
1787 } 1748 }
1788 1749
1789 /* Get new file size. */ 1750 /* Get new file size. */
1790 n_new_file_size = p_s_inode->i_size; 1751 new_file_size = inode->i_size;
1791 1752
1792 // FIXME: note, that key type is unimportant here 1753 // FIXME: note, that key type is unimportant here
1793 make_cpu_key(&s_item_key, p_s_inode, max_reiserfs_offset(p_s_inode), 1754 make_cpu_key(&s_item_key, inode, max_reiserfs_offset(inode),
1794 TYPE_DIRECT, 3); 1755 TYPE_DIRECT, 3);
1795 1756
1796 retval = 1757 retval =
1797 search_for_position_by_key(p_s_inode->i_sb, &s_item_key, 1758 search_for_position_by_key(inode->i_sb, &s_item_key,
1798 &s_search_path); 1759 &s_search_path);
1799 if (retval == IO_ERROR) { 1760 if (retval == IO_ERROR) {
1800 reiserfs_warning(p_s_inode->i_sb, 1761 reiserfs_error(inode->i_sb, "vs-5657",
1801 "vs-5657: reiserfs_do_truncate: " 1762 "i/o failure occurred trying to truncate %K",
1802 "i/o failure occurred trying to truncate %K", 1763 &s_item_key);
1803 &s_item_key);
1804 err = -EIO; 1764 err = -EIO;
1805 goto out; 1765 goto out;
1806 } 1766 }
1807 if (retval == POSITION_FOUND || retval == FILE_NOT_FOUND) { 1767 if (retval == POSITION_FOUND || retval == FILE_NOT_FOUND) {
1808 reiserfs_warning(p_s_inode->i_sb, 1768 reiserfs_error(inode->i_sb, "PAP-5660",
1809 "PAP-5660: reiserfs_do_truncate: " 1769 "wrong result %d of search for %K", retval,
1810 "wrong result %d of search for %K", retval, 1770 &s_item_key);
1811 &s_item_key);
1812 1771
1813 err = -EIO; 1772 err = -EIO;
1814 goto out; 1773 goto out;
@@ -1819,56 +1778,56 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
1819 /* Get real file size (total length of all file items) */ 1778 /* Get real file size (total length of all file items) */
1820 p_le_ih = PATH_PITEM_HEAD(&s_search_path); 1779 p_le_ih = PATH_PITEM_HEAD(&s_search_path);
1821 if (is_statdata_le_ih(p_le_ih)) 1780 if (is_statdata_le_ih(p_le_ih))
1822 n_file_size = 0; 1781 file_size = 0;
1823 else { 1782 else {
1824 loff_t offset = le_ih_k_offset(p_le_ih); 1783 loff_t offset = le_ih_k_offset(p_le_ih);
1825 int bytes = 1784 int bytes =
1826 op_bytes_number(p_le_ih, p_s_inode->i_sb->s_blocksize); 1785 op_bytes_number(p_le_ih, inode->i_sb->s_blocksize);
1827 1786
1828 /* this may mismatch with real file size: if last direct item 1787 /* this may mismatch with real file size: if last direct item
1829 had no padding zeros and last unformatted node had no free 1788 had no padding zeros and last unformatted node had no free
1830 space, this file would have this file size */ 1789 space, this file would have this file size */
1831 n_file_size = offset + bytes - 1; 1790 file_size = offset + bytes - 1;
1832 } 1791 }
1833 /* 1792 /*
1834 * are we doing a full truncate or delete, if so 1793 * are we doing a full truncate or delete, if so
1835 * kick in the reada code 1794 * kick in the reada code
1836 */ 1795 */
1837 if (n_new_file_size == 0) 1796 if (new_file_size == 0)
1838 s_search_path.reada = PATH_READA | PATH_READA_BACK; 1797 s_search_path.reada = PATH_READA | PATH_READA_BACK;
1839 1798
1840 if (n_file_size == 0 || n_file_size < n_new_file_size) { 1799 if (file_size == 0 || file_size < new_file_size) {
1841 goto update_and_out; 1800 goto update_and_out;
1842 } 1801 }
1843 1802
1844 /* Update key to search for the last file item. */ 1803 /* Update key to search for the last file item. */
1845 set_cpu_key_k_offset(&s_item_key, n_file_size); 1804 set_cpu_key_k_offset(&s_item_key, file_size);
1846 1805
1847 do { 1806 do {
1848 /* Cut or delete file item. */ 1807 /* Cut or delete file item. */
1849 n_deleted = 1808 deleted =
1850 reiserfs_cut_from_item(th, &s_search_path, &s_item_key, 1809 reiserfs_cut_from_item(th, &s_search_path, &s_item_key,
1851 p_s_inode, page, n_new_file_size); 1810 inode, page, new_file_size);
1852 if (n_deleted < 0) { 1811 if (deleted < 0) {
1853 reiserfs_warning(p_s_inode->i_sb, 1812 reiserfs_warning(inode->i_sb, "vs-5665",
1854 "vs-5665: reiserfs_do_truncate: reiserfs_cut_from_item failed"); 1813 "reiserfs_cut_from_item failed");
1855 reiserfs_check_path(&s_search_path); 1814 reiserfs_check_path(&s_search_path);
1856 return 0; 1815 return 0;
1857 } 1816 }
1858 1817
1859 RFALSE(n_deleted > n_file_size, 1818 RFALSE(deleted > file_size,
1860 "PAP-5670: reiserfs_cut_from_item: too many bytes deleted: deleted %d, file_size %lu, item_key %K", 1819 "PAP-5670: reiserfs_cut_from_item: too many bytes deleted: deleted %d, file_size %lu, item_key %K",
1861 n_deleted, n_file_size, &s_item_key); 1820 deleted, file_size, &s_item_key);
1862 1821
1863 /* Change key to search the last file item. */ 1822 /* Change key to search the last file item. */
1864 n_file_size -= n_deleted; 1823 file_size -= deleted;
1865 1824
1866 set_cpu_key_k_offset(&s_item_key, n_file_size); 1825 set_cpu_key_k_offset(&s_item_key, file_size);
1867 1826
1868 /* While there are bytes to truncate and previous file item is presented in the tree. */ 1827 /* While there are bytes to truncate and previous file item is presented in the tree. */
1869 1828
1870 /* 1829 /*
1871 ** This loop could take a really long time, and could log 1830 ** This loop could take a really long time, and could log
1872 ** many more blocks than a transaction can hold. So, we do a polite 1831 ** many more blocks than a transaction can hold. So, we do a polite
1873 ** journal end here, and if the transaction needs ending, we make 1832 ** journal end here, and if the transaction needs ending, we make
1874 ** sure the file is consistent before ending the current trans 1833 ** sure the file is consistent before ending the current trans
@@ -1877,37 +1836,38 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
1877 if (journal_transaction_should_end(th, 0) || 1836 if (journal_transaction_should_end(th, 0) ||
1878 reiserfs_transaction_free_space(th) <= JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD) { 1837 reiserfs_transaction_free_space(th) <= JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD) {
1879 int orig_len_alloc = th->t_blocks_allocated; 1838 int orig_len_alloc = th->t_blocks_allocated;
1880 decrement_counters_in_path(&s_search_path); 1839 pathrelse(&s_search_path);
1881 1840
1882 if (update_timestamps) { 1841 if (update_timestamps) {
1883 p_s_inode->i_mtime = p_s_inode->i_ctime = 1842 inode->i_mtime = CURRENT_TIME_SEC;
1884 CURRENT_TIME_SEC; 1843 inode->i_ctime = CURRENT_TIME_SEC;
1885 } 1844 }
1886 reiserfs_update_sd(th, p_s_inode); 1845 reiserfs_update_sd(th, inode);
1887 1846
1888 err = journal_end(th, p_s_inode->i_sb, orig_len_alloc); 1847 err = journal_end(th, inode->i_sb, orig_len_alloc);
1889 if (err) 1848 if (err)
1890 goto out; 1849 goto out;
1891 err = journal_begin(th, p_s_inode->i_sb, 1850 err = journal_begin(th, inode->i_sb,
1892 JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD + JOURNAL_PER_BALANCE_CNT * 4) ; 1851 JOURNAL_FOR_FREE_BLOCK_AND_UPDATE_SD + JOURNAL_PER_BALANCE_CNT * 4) ;
1893 if (err) 1852 if (err)
1894 goto out; 1853 goto out;
1895 reiserfs_update_inode_transaction(p_s_inode); 1854 reiserfs_update_inode_transaction(inode);
1896 } 1855 }
1897 } while (n_file_size > ROUND_UP(n_new_file_size) && 1856 } while (file_size > ROUND_UP(new_file_size) &&
1898 search_for_position_by_key(p_s_inode->i_sb, &s_item_key, 1857 search_for_position_by_key(inode->i_sb, &s_item_key,
1899 &s_search_path) == POSITION_FOUND); 1858 &s_search_path) == POSITION_FOUND);
1900 1859
1901 RFALSE(n_file_size > ROUND_UP(n_new_file_size), 1860 RFALSE(file_size > ROUND_UP(new_file_size),
1902 "PAP-5680: truncate did not finish: new_file_size %Ld, current %Ld, oid %d", 1861 "PAP-5680: truncate did not finish: new_file_size %Ld, current %Ld, oid %d",
1903 n_new_file_size, n_file_size, s_item_key.on_disk_key.k_objectid); 1862 new_file_size, file_size, s_item_key.on_disk_key.k_objectid);
1904 1863
1905 update_and_out: 1864 update_and_out:
1906 if (update_timestamps) { 1865 if (update_timestamps) {
1907 // this is truncate, not file closing 1866 // this is truncate, not file closing
1908 p_s_inode->i_mtime = p_s_inode->i_ctime = CURRENT_TIME_SEC; 1867 inode->i_mtime = CURRENT_TIME_SEC;
1868 inode->i_ctime = CURRENT_TIME_SEC;
1909 } 1869 }
1910 reiserfs_update_sd(th, p_s_inode); 1870 reiserfs_update_sd(th, inode);
1911 1871
1912 out: 1872 out:
1913 pathrelse(&s_search_path); 1873 pathrelse(&s_search_path);
@@ -1917,7 +1877,7 @@ int reiserfs_do_truncate(struct reiserfs_transaction_handle *th, struct inode *p
1917#ifdef CONFIG_REISERFS_CHECK 1877#ifdef CONFIG_REISERFS_CHECK
1918// this makes sure, that we __append__, not overwrite or add holes 1878// this makes sure, that we __append__, not overwrite or add holes
1919static void check_research_for_paste(struct treepath *path, 1879static void check_research_for_paste(struct treepath *path,
1920 const struct cpu_key *p_s_key) 1880 const struct cpu_key *key)
1921{ 1881{
1922 struct item_head *found_ih = get_ih(path); 1882 struct item_head *found_ih = get_ih(path);
1923 1883
@@ -1925,36 +1885,36 @@ static void check_research_for_paste(struct treepath *path,
1925 if (le_ih_k_offset(found_ih) + 1885 if (le_ih_k_offset(found_ih) +
1926 op_bytes_number(found_ih, 1886 op_bytes_number(found_ih,
1927 get_last_bh(path)->b_size) != 1887 get_last_bh(path)->b_size) !=
1928 cpu_key_k_offset(p_s_key) 1888 cpu_key_k_offset(key)
1929 || op_bytes_number(found_ih, 1889 || op_bytes_number(found_ih,
1930 get_last_bh(path)->b_size) != 1890 get_last_bh(path)->b_size) !=
1931 pos_in_item(path)) 1891 pos_in_item(path))
1932 reiserfs_panic(NULL, 1892 reiserfs_panic(NULL, "PAP-5720", "found direct item "
1933 "PAP-5720: check_research_for_paste: " 1893 "%h or position (%d) does not match "
1934 "found direct item %h or position (%d) does not match to key %K", 1894 "to key %K", found_ih,
1935 found_ih, pos_in_item(path), p_s_key); 1895 pos_in_item(path), key);
1936 } 1896 }
1937 if (is_indirect_le_ih(found_ih)) { 1897 if (is_indirect_le_ih(found_ih)) {
1938 if (le_ih_k_offset(found_ih) + 1898 if (le_ih_k_offset(found_ih) +
1939 op_bytes_number(found_ih, 1899 op_bytes_number(found_ih,
1940 get_last_bh(path)->b_size) != 1900 get_last_bh(path)->b_size) !=
1941 cpu_key_k_offset(p_s_key) 1901 cpu_key_k_offset(key)
1942 || I_UNFM_NUM(found_ih) != pos_in_item(path) 1902 || I_UNFM_NUM(found_ih) != pos_in_item(path)
1943 || get_ih_free_space(found_ih) != 0) 1903 || get_ih_free_space(found_ih) != 0)
1944 reiserfs_panic(NULL, 1904 reiserfs_panic(NULL, "PAP-5730", "found indirect "
1945 "PAP-5730: check_research_for_paste: " 1905 "item (%h) or position (%d) does not "
1946 "found indirect item (%h) or position (%d) does not match to key (%K)", 1906 "match to key (%K)",
1947 found_ih, pos_in_item(path), p_s_key); 1907 found_ih, pos_in_item(path), key);
1948 } 1908 }
1949} 1909}
1950#endif /* config reiserfs check */ 1910#endif /* config reiserfs check */
1951 1911
1952/* Paste bytes to the existing item. Returns bytes number pasted into the item. */ 1912/* Paste bytes to the existing item. Returns bytes number pasted into the item. */
1953int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct treepath *p_s_search_path, /* Path to the pasted item. */ 1913int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct treepath *search_path, /* Path to the pasted item. */
1954 const struct cpu_key *p_s_key, /* Key to search for the needed item. */ 1914 const struct cpu_key *key, /* Key to search for the needed item. */
1955 struct inode *inode, /* Inode item belongs to */ 1915 struct inode *inode, /* Inode item belongs to */
1956 const char *p_c_body, /* Pointer to the bytes to paste. */ 1916 const char *body, /* Pointer to the bytes to paste. */
1957 int n_pasted_size) 1917 int pasted_size)
1958{ /* Size of pasted bytes. */ 1918{ /* Size of pasted bytes. */
1959 struct tree_balance s_paste_balance; 1919 struct tree_balance s_paste_balance;
1960 int retval; 1920 int retval;
@@ -1967,18 +1927,18 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
1967#ifdef REISERQUOTA_DEBUG 1927#ifdef REISERQUOTA_DEBUG
1968 reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE, 1928 reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
1969 "reiserquota paste_into_item(): allocating %u id=%u type=%c", 1929 "reiserquota paste_into_item(): allocating %u id=%u type=%c",
1970 n_pasted_size, inode->i_uid, 1930 pasted_size, inode->i_uid,
1971 key2type(&(p_s_key->on_disk_key))); 1931 key2type(&(key->on_disk_key)));
1972#endif 1932#endif
1973 1933
1974 if (vfs_dq_alloc_space_nodirty(inode, n_pasted_size)) { 1934 if (vfs_dq_alloc_space_nodirty(inode, pasted_size)) {
1975 pathrelse(p_s_search_path); 1935 pathrelse(search_path);
1976 return -EDQUOT; 1936 return -EDQUOT;
1977 } 1937 }
1978 init_tb_struct(th, &s_paste_balance, th->t_super, p_s_search_path, 1938 init_tb_struct(th, &s_paste_balance, th->t_super, search_path,
1979 n_pasted_size); 1939 pasted_size);
1980#ifdef DISPLACE_NEW_PACKING_LOCALITIES 1940#ifdef DISPLACE_NEW_PACKING_LOCALITIES
1981 s_paste_balance.key = p_s_key->on_disk_key; 1941 s_paste_balance.key = key->on_disk_key;
1982#endif 1942#endif
1983 1943
1984 /* DQUOT_* can schedule, must check before the fix_nodes */ 1944 /* DQUOT_* can schedule, must check before the fix_nodes */
@@ -1988,33 +1948,33 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
1988 1948
1989 while ((retval = 1949 while ((retval =
1990 fix_nodes(M_PASTE, &s_paste_balance, NULL, 1950 fix_nodes(M_PASTE, &s_paste_balance, NULL,
1991 p_c_body)) == REPEAT_SEARCH) { 1951 body)) == REPEAT_SEARCH) {
1992 search_again: 1952 search_again:
1993 /* file system changed while we were in the fix_nodes */ 1953 /* file system changed while we were in the fix_nodes */
1994 PROC_INFO_INC(th->t_super, paste_into_item_restarted); 1954 PROC_INFO_INC(th->t_super, paste_into_item_restarted);
1995 retval = 1955 retval =
1996 search_for_position_by_key(th->t_super, p_s_key, 1956 search_for_position_by_key(th->t_super, key,
1997 p_s_search_path); 1957 search_path);
1998 if (retval == IO_ERROR) { 1958 if (retval == IO_ERROR) {
1999 retval = -EIO; 1959 retval = -EIO;
2000 goto error_out; 1960 goto error_out;
2001 } 1961 }
2002 if (retval == POSITION_FOUND) { 1962 if (retval == POSITION_FOUND) {
2003 reiserfs_warning(inode->i_sb, 1963 reiserfs_warning(inode->i_sb, "PAP-5710",
2004 "PAP-5710: reiserfs_paste_into_item: entry or pasted byte (%K) exists", 1964 "entry or pasted byte (%K) exists",
2005 p_s_key); 1965 key);
2006 retval = -EEXIST; 1966 retval = -EEXIST;
2007 goto error_out; 1967 goto error_out;
2008 } 1968 }
2009#ifdef CONFIG_REISERFS_CHECK 1969#ifdef CONFIG_REISERFS_CHECK
2010 check_research_for_paste(p_s_search_path, p_s_key); 1970 check_research_for_paste(search_path, key);
2011#endif 1971#endif
2012 } 1972 }
2013 1973
2014 /* Perform balancing after all resources are collected by fix_nodes, and 1974 /* Perform balancing after all resources are collected by fix_nodes, and
2015 accessing them will not risk triggering schedule. */ 1975 accessing them will not risk triggering schedule. */
2016 if (retval == CARRY_ON) { 1976 if (retval == CARRY_ON) {
2017 do_balance(&s_paste_balance, NULL /*ih */ , p_c_body, M_PASTE); 1977 do_balance(&s_paste_balance, NULL /*ih */ , body, M_PASTE);
2018 return 0; 1978 return 0;
2019 } 1979 }
2020 retval = (retval == NO_DISK_SPACE) ? -ENOSPC : -EIO; 1980 retval = (retval == NO_DISK_SPACE) ? -ENOSPC : -EIO;
@@ -2024,18 +1984,24 @@ int reiserfs_paste_into_item(struct reiserfs_transaction_handle *th, struct tree
2024#ifdef REISERQUOTA_DEBUG 1984#ifdef REISERQUOTA_DEBUG
2025 reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE, 1985 reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
2026 "reiserquota paste_into_item(): freeing %u id=%u type=%c", 1986 "reiserquota paste_into_item(): freeing %u id=%u type=%c",
2027 n_pasted_size, inode->i_uid, 1987 pasted_size, inode->i_uid,
2028 key2type(&(p_s_key->on_disk_key))); 1988 key2type(&(key->on_disk_key)));
2029#endif 1989#endif
2030 vfs_dq_free_space_nodirty(inode, n_pasted_size); 1990 vfs_dq_free_space_nodirty(inode, pasted_size);
2031 return retval; 1991 return retval;
2032} 1992}
2033 1993
2034/* Insert new item into the buffer at the path. */ 1994/* Insert new item into the buffer at the path.
2035int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath *p_s_path, /* Path to the inserteded item. */ 1995 * th - active transaction handle
2036 const struct cpu_key *key, struct item_head *p_s_ih, /* Pointer to the item header to insert. */ 1996 * path - path to the inserted item
2037 struct inode *inode, const char *p_c_body) 1997 * ih - pointer to the item header to insert
2038{ /* Pointer to the bytes to insert. */ 1998 * body - pointer to the bytes to insert
1999 */
2000int reiserfs_insert_item(struct reiserfs_transaction_handle *th,
2001 struct treepath *path, const struct cpu_key *key,
2002 struct item_head *ih, struct inode *inode,
2003 const char *body)
2004{
2039 struct tree_balance s_ins_balance; 2005 struct tree_balance s_ins_balance;
2040 int retval; 2006 int retval;
2041 int fs_gen = 0; 2007 int fs_gen = 0;
@@ -2045,28 +2011,27 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
2045 2011
2046 if (inode) { /* Do we count quotas for item? */ 2012 if (inode) { /* Do we count quotas for item? */
2047 fs_gen = get_generation(inode->i_sb); 2013 fs_gen = get_generation(inode->i_sb);
2048 quota_bytes = ih_item_len(p_s_ih); 2014 quota_bytes = ih_item_len(ih);
2049 2015
2050 /* hack so the quota code doesn't have to guess if the file has 2016 /* hack so the quota code doesn't have to guess if the file has
2051 ** a tail, links are always tails, so there's no guessing needed 2017 ** a tail, links are always tails, so there's no guessing needed
2052 */ 2018 */
2053 if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(p_s_ih)) { 2019 if (!S_ISLNK(inode->i_mode) && is_direct_le_ih(ih))
2054 quota_bytes = inode->i_sb->s_blocksize + UNFM_P_SIZE; 2020 quota_bytes = inode->i_sb->s_blocksize + UNFM_P_SIZE;
2055 }
2056#ifdef REISERQUOTA_DEBUG 2021#ifdef REISERQUOTA_DEBUG
2057 reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE, 2022 reiserfs_debug(inode->i_sb, REISERFS_DEBUG_CODE,
2058 "reiserquota insert_item(): allocating %u id=%u type=%c", 2023 "reiserquota insert_item(): allocating %u id=%u type=%c",
2059 quota_bytes, inode->i_uid, head2type(p_s_ih)); 2024 quota_bytes, inode->i_uid, head2type(ih));
2060#endif 2025#endif
2061 /* We can't dirty inode here. It would be immediately written but 2026 /* We can't dirty inode here. It would be immediately written but
2062 * appropriate stat item isn't inserted yet... */ 2027 * appropriate stat item isn't inserted yet... */
2063 if (vfs_dq_alloc_space_nodirty(inode, quota_bytes)) { 2028 if (vfs_dq_alloc_space_nodirty(inode, quota_bytes)) {
2064 pathrelse(p_s_path); 2029 pathrelse(path);
2065 return -EDQUOT; 2030 return -EDQUOT;
2066 } 2031 }
2067 } 2032 }
2068 init_tb_struct(th, &s_ins_balance, th->t_super, p_s_path, 2033 init_tb_struct(th, &s_ins_balance, th->t_super, path,
2069 IH_SIZE + ih_item_len(p_s_ih)); 2034 IH_SIZE + ih_item_len(ih));
2070#ifdef DISPLACE_NEW_PACKING_LOCALITIES 2035#ifdef DISPLACE_NEW_PACKING_LOCALITIES
2071 s_ins_balance.key = key->on_disk_key; 2036 s_ins_balance.key = key->on_disk_key;
2072#endif 2037#endif
@@ -2076,19 +2041,18 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
2076 } 2041 }
2077 2042
2078 while ((retval = 2043 while ((retval =
2079 fix_nodes(M_INSERT, &s_ins_balance, p_s_ih, 2044 fix_nodes(M_INSERT, &s_ins_balance, ih,
2080 p_c_body)) == REPEAT_SEARCH) { 2045 body)) == REPEAT_SEARCH) {
2081 search_again: 2046 search_again:
2082 /* file system changed while we were in the fix_nodes */ 2047 /* file system changed while we were in the fix_nodes */
2083 PROC_INFO_INC(th->t_super, insert_item_restarted); 2048 PROC_INFO_INC(th->t_super, insert_item_restarted);
2084 retval = search_item(th->t_super, key, p_s_path); 2049 retval = search_item(th->t_super, key, path);
2085 if (retval == IO_ERROR) { 2050 if (retval == IO_ERROR) {
2086 retval = -EIO; 2051 retval = -EIO;
2087 goto error_out; 2052 goto error_out;
2088 } 2053 }
2089 if (retval == ITEM_FOUND) { 2054 if (retval == ITEM_FOUND) {
2090 reiserfs_warning(th->t_super, 2055 reiserfs_warning(th->t_super, "PAP-5760",
2091 "PAP-5760: reiserfs_insert_item: "
2092 "key %K already exists in the tree", 2056 "key %K already exists in the tree",
2093 key); 2057 key);
2094 retval = -EEXIST; 2058 retval = -EEXIST;
@@ -2098,7 +2062,7 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
2098 2062
2099 /* make balancing after all resources will be collected at a time */ 2063 /* make balancing after all resources will be collected at a time */
2100 if (retval == CARRY_ON) { 2064 if (retval == CARRY_ON) {
2101 do_balance(&s_ins_balance, p_s_ih, p_c_body, M_INSERT); 2065 do_balance(&s_ins_balance, ih, body, M_INSERT);
2102 return 0; 2066 return 0;
2103 } 2067 }
2104 2068
@@ -2109,7 +2073,7 @@ int reiserfs_insert_item(struct reiserfs_transaction_handle *th, struct treepath
2109#ifdef REISERQUOTA_DEBUG 2073#ifdef REISERQUOTA_DEBUG
2110 reiserfs_debug(th->t_super, REISERFS_DEBUG_CODE, 2074 reiserfs_debug(th->t_super, REISERFS_DEBUG_CODE,
2111 "reiserquota insert_item(): freeing %u id=%u type=%c", 2075 "reiserquota insert_item(): freeing %u id=%u type=%c",
2112 quota_bytes, inode->i_uid, head2type(p_s_ih)); 2076 quota_bytes, inode->i_uid, head2type(ih));
2113#endif 2077#endif
2114 if (inode) 2078 if (inode)
2115 vfs_dq_free_space_nodirty(inode, quota_bytes); 2079 vfs_dq_free_space_nodirty(inode, quota_bytes);
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-26 10:14:03 -0500