aboutsummaryrefslogtreecommitdiffstats
path: root/fs/ext4/inode.c
diff options
context:
space:
mode:
authorMingming Cao <cmm@us.ibm.com>2006-10-11 04:20:53 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-10-11 14:14:15 -0400
commit617ba13b31fbf505cc21799826639ef24ed94af0 (patch)
tree2a41e8c993f7c1eed115ad24047d546ba56cbdf5 /fs/ext4/inode.c
parentac27a0ec112a089f1a5102bc8dffc79c8c815571 (diff)
[PATCH] ext4: rename ext4 symbols to avoid duplication of ext3 symbols
Mingming Cao originally did this work, and Shaggy reproduced it using some scripts from her. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ext4/inode.c')
-rw-r--r--fs/ext4/inode.c1020
1 files changed, 510 insertions, 510 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 03ba5bcab186..7275d60dcc59 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1,5 +1,5 @@
1/* 1/*
2 * linux/fs/ext3/inode.c 2 * linux/fs/ext4/inode.c
3 * 3 *
4 * Copyright (C) 1992, 1993, 1994, 1995 4 * Copyright (C) 1992, 1993, 1994, 1995
5 * Remy Card (card@masi.ibp.fr) 5 * Remy Card (card@masi.ibp.fr)
@@ -19,13 +19,13 @@
19 * 64-bit file support on 64-bit platforms by Jakub Jelinek 19 * 64-bit file support on 64-bit platforms by Jakub Jelinek
20 * (jj@sunsite.ms.mff.cuni.cz) 20 * (jj@sunsite.ms.mff.cuni.cz)
21 * 21 *
22 * Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000 22 * Assorted race fixes, rewrite of ext4_get_block() by Al Viro, 2000
23 */ 23 */
24 24
25#include <linux/module.h> 25#include <linux/module.h>
26#include <linux/fs.h> 26#include <linux/fs.h>
27#include <linux/time.h> 27#include <linux/time.h>
28#include <linux/ext3_jbd.h> 28#include <linux/ext4_jbd.h>
29#include <linux/jbd.h> 29#include <linux/jbd.h>
30#include <linux/smp_lock.h> 30#include <linux/smp_lock.h>
31#include <linux/highuid.h> 31#include <linux/highuid.h>
@@ -40,21 +40,21 @@
40#include "xattr.h" 40#include "xattr.h"
41#include "acl.h" 41#include "acl.h"
42 42
43static int ext3_writepage_trans_blocks(struct inode *inode); 43static int ext4_writepage_trans_blocks(struct inode *inode);
44 44
45/* 45/*
46 * Test whether an inode is a fast symlink. 46 * Test whether an inode is a fast symlink.
47 */ 47 */
48static int ext3_inode_is_fast_symlink(struct inode *inode) 48static int ext4_inode_is_fast_symlink(struct inode *inode)
49{ 49{
50 int ea_blocks = EXT3_I(inode)->i_file_acl ? 50 int ea_blocks = EXT4_I(inode)->i_file_acl ?
51 (inode->i_sb->s_blocksize >> 9) : 0; 51 (inode->i_sb->s_blocksize >> 9) : 0;
52 52
53 return (S_ISLNK(inode->i_mode) && inode->i_blocks - ea_blocks == 0); 53 return (S_ISLNK(inode->i_mode) && inode->i_blocks - ea_blocks == 0);
54} 54}
55 55
56/* 56/*
57 * The ext3 forget function must perform a revoke if we are freeing data 57 * The ext4 forget function must perform a revoke if we are freeing data
58 * which has been journaled. Metadata (eg. indirect blocks) must be 58 * which has been journaled. Metadata (eg. indirect blocks) must be
59 * revoked in all cases. 59 * revoked in all cases.
60 * 60 *
@@ -62,8 +62,8 @@ static int ext3_inode_is_fast_symlink(struct inode *inode)
62 * but there may still be a record of it in the journal, and that record 62 * but there may still be a record of it in the journal, and that record
63 * still needs to be revoked. 63 * still needs to be revoked.
64 */ 64 */
65int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode, 65int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
66 struct buffer_head *bh, ext3_fsblk_t blocknr) 66 struct buffer_head *bh, ext4_fsblk_t blocknr)
67{ 67{
68 int err; 68 int err;
69 69
@@ -81,11 +81,11 @@ int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
81 * support it. Otherwise, only skip the revoke on un-journaled 81 * support it. Otherwise, only skip the revoke on un-journaled
82 * data blocks. */ 82 * data blocks. */
83 83
84 if (test_opt(inode->i_sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA || 84 if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ||
85 (!is_metadata && !ext3_should_journal_data(inode))) { 85 (!is_metadata && !ext4_should_journal_data(inode))) {
86 if (bh) { 86 if (bh) {
87 BUFFER_TRACE(bh, "call journal_forget"); 87 BUFFER_TRACE(bh, "call journal_forget");
88 return ext3_journal_forget(handle, bh); 88 return ext4_journal_forget(handle, bh);
89 } 89 }
90 return 0; 90 return 0;
91 } 91 }
@@ -93,10 +93,10 @@ int ext3_forget(handle_t *handle, int is_metadata, struct inode *inode,
93 /* 93 /*
94 * data!=journal && (is_metadata || should_journal_data(inode)) 94 * data!=journal && (is_metadata || should_journal_data(inode))
95 */ 95 */
96 BUFFER_TRACE(bh, "call ext3_journal_revoke"); 96 BUFFER_TRACE(bh, "call ext4_journal_revoke");
97 err = ext3_journal_revoke(handle, blocknr, bh); 97 err = ext4_journal_revoke(handle, blocknr, bh);
98 if (err) 98 if (err)
99 ext3_abort(inode->i_sb, __FUNCTION__, 99 ext4_abort(inode->i_sb, __FUNCTION__,
100 "error %d when attempting revoke", err); 100 "error %d when attempting revoke", err);
101 BUFFER_TRACE(bh, "exit"); 101 BUFFER_TRACE(bh, "exit");
102 return err; 102 return err;
@@ -115,7 +115,7 @@ static unsigned long blocks_for_truncate(struct inode *inode)
115 /* Give ourselves just enough room to cope with inodes in which 115 /* Give ourselves just enough room to cope with inodes in which
116 * i_blocks is corrupt: we've seen disk corruptions in the past 116 * i_blocks is corrupt: we've seen disk corruptions in the past
117 * which resulted in random data in an inode which looked enough 117 * which resulted in random data in an inode which looked enough
118 * like a regular file for ext3 to try to delete it. Things 118 * like a regular file for ext4 to try to delete it. Things
119 * will go a bit crazy if that happens, but at least we should 119 * will go a bit crazy if that happens, but at least we should
120 * try not to panic the whole kernel. */ 120 * try not to panic the whole kernel. */
121 if (needed < 2) 121 if (needed < 2)
@@ -123,10 +123,10 @@ static unsigned long blocks_for_truncate(struct inode *inode)
123 123
124 /* But we need to bound the transaction so we don't overflow the 124 /* But we need to bound the transaction so we don't overflow the
125 * journal. */ 125 * journal. */
126 if (needed > EXT3_MAX_TRANS_DATA) 126 if (needed > EXT4_MAX_TRANS_DATA)
127 needed = EXT3_MAX_TRANS_DATA; 127 needed = EXT4_MAX_TRANS_DATA;
128 128
129 return EXT3_DATA_TRANS_BLOCKS(inode->i_sb) + needed; 129 return EXT4_DATA_TRANS_BLOCKS(inode->i_sb) + needed;
130} 130}
131 131
132/* 132/*
@@ -143,11 +143,11 @@ static handle_t *start_transaction(struct inode *inode)
143{ 143{
144 handle_t *result; 144 handle_t *result;
145 145
146 result = ext3_journal_start(inode, blocks_for_truncate(inode)); 146 result = ext4_journal_start(inode, blocks_for_truncate(inode));
147 if (!IS_ERR(result)) 147 if (!IS_ERR(result))
148 return result; 148 return result;
149 149
150 ext3_std_error(inode->i_sb, PTR_ERR(result)); 150 ext4_std_error(inode->i_sb, PTR_ERR(result));
151 return result; 151 return result;
152} 152}
153 153
@@ -159,9 +159,9 @@ static handle_t *start_transaction(struct inode *inode)
159 */ 159 */
160static int try_to_extend_transaction(handle_t *handle, struct inode *inode) 160static int try_to_extend_transaction(handle_t *handle, struct inode *inode)
161{ 161{
162 if (handle->h_buffer_credits > EXT3_RESERVE_TRANS_BLOCKS) 162 if (handle->h_buffer_credits > EXT4_RESERVE_TRANS_BLOCKS)
163 return 0; 163 return 0;
164 if (!ext3_journal_extend(handle, blocks_for_truncate(inode))) 164 if (!ext4_journal_extend(handle, blocks_for_truncate(inode)))
165 return 0; 165 return 0;
166 return 1; 166 return 1;
167} 167}
@@ -171,16 +171,16 @@ static int try_to_extend_transaction(handle_t *handle, struct inode *inode)
171 * so before we call here everything must be consistently dirtied against 171 * so before we call here everything must be consistently dirtied against
172 * this transaction. 172 * this transaction.
173 */ 173 */
174static int ext3_journal_test_restart(handle_t *handle, struct inode *inode) 174static int ext4_journal_test_restart(handle_t *handle, struct inode *inode)
175{ 175{
176 jbd_debug(2, "restarting handle %p\n", handle); 176 jbd_debug(2, "restarting handle %p\n", handle);
177 return ext3_journal_restart(handle, blocks_for_truncate(inode)); 177 return ext4_journal_restart(handle, blocks_for_truncate(inode));
178} 178}
179 179
180/* 180/*
181 * Called at the last iput() if i_nlink is zero. 181 * Called at the last iput() if i_nlink is zero.
182 */ 182 */
183void ext3_delete_inode (struct inode * inode) 183void ext4_delete_inode (struct inode * inode)
184{ 184{
185 handle_t *handle; 185 handle_t *handle;
186 186
@@ -196,7 +196,7 @@ void ext3_delete_inode (struct inode * inode)
196 * make sure that the in-core orphan linked list is properly 196 * make sure that the in-core orphan linked list is properly
197 * cleaned up. 197 * cleaned up.
198 */ 198 */
199 ext3_orphan_del(NULL, inode); 199 ext4_orphan_del(NULL, inode);
200 goto no_delete; 200 goto no_delete;
201 } 201 }
202 202
@@ -204,17 +204,17 @@ void ext3_delete_inode (struct inode * inode)
204 handle->h_sync = 1; 204 handle->h_sync = 1;
205 inode->i_size = 0; 205 inode->i_size = 0;
206 if (inode->i_blocks) 206 if (inode->i_blocks)
207 ext3_truncate(inode); 207 ext4_truncate(inode);
208 /* 208 /*
209 * Kill off the orphan record which ext3_truncate created. 209 * Kill off the orphan record which ext4_truncate created.
210 * AKPM: I think this can be inside the above `if'. 210 * AKPM: I think this can be inside the above `if'.
211 * Note that ext3_orphan_del() has to be able to cope with the 211 * Note that ext4_orphan_del() has to be able to cope with the
212 * deletion of a non-existent orphan - this is because we don't 212 * deletion of a non-existent orphan - this is because we don't
213 * know if ext3_truncate() actually created an orphan record. 213 * know if ext4_truncate() actually created an orphan record.
214 * (Well, we could do this if we need to, but heck - it works) 214 * (Well, we could do this if we need to, but heck - it works)
215 */ 215 */
216 ext3_orphan_del(handle, inode); 216 ext4_orphan_del(handle, inode);
217 EXT3_I(inode)->i_dtime = get_seconds(); 217 EXT4_I(inode)->i_dtime = get_seconds();
218 218
219 /* 219 /*
220 * One subtle ordering requirement: if anything has gone wrong 220 * One subtle ordering requirement: if anything has gone wrong
@@ -223,12 +223,12 @@ void ext3_delete_inode (struct inode * inode)
223 * having errors), but we can't free the inode if the mark_dirty 223 * having errors), but we can't free the inode if the mark_dirty
224 * fails. 224 * fails.
225 */ 225 */
226 if (ext3_mark_inode_dirty(handle, inode)) 226 if (ext4_mark_inode_dirty(handle, inode))
227 /* If that failed, just do the required in-core inode clear. */ 227 /* If that failed, just do the required in-core inode clear. */
228 clear_inode(inode); 228 clear_inode(inode);
229 else 229 else
230 ext3_free_inode(handle, inode); 230 ext4_free_inode(handle, inode);
231 ext3_journal_stop(handle); 231 ext4_journal_stop(handle);
232 return; 232 return;
233no_delete: 233no_delete:
234 clear_inode(inode); /* We must guarantee clearing of inode... */ 234 clear_inode(inode); /* We must guarantee clearing of inode... */
@@ -254,14 +254,14 @@ static int verify_chain(Indirect *from, Indirect *to)
254} 254}
255 255
256/** 256/**
257 * ext3_block_to_path - parse the block number into array of offsets 257 * ext4_block_to_path - parse the block number into array of offsets
258 * @inode: inode in question (we are only interested in its superblock) 258 * @inode: inode in question (we are only interested in its superblock)
259 * @i_block: block number to be parsed 259 * @i_block: block number to be parsed
260 * @offsets: array to store the offsets in 260 * @offsets: array to store the offsets in
261 * @boundary: set this non-zero if the referred-to block is likely to be 261 * @boundary: set this non-zero if the referred-to block is likely to be
262 * followed (on disk) by an indirect block. 262 * followed (on disk) by an indirect block.
263 * 263 *
264 * To store the locations of file's data ext3 uses a data structure common 264 * To store the locations of file's data ext4 uses a data structure common
265 * for UNIX filesystems - tree of pointers anchored in the inode, with 265 * for UNIX filesystems - tree of pointers anchored in the inode, with
266 * data blocks at leaves and indirect blocks in intermediate nodes. 266 * data blocks at leaves and indirect blocks in intermediate nodes.
267 * This function translates the block number into path in that tree - 267 * This function translates the block number into path in that tree -
@@ -284,39 +284,39 @@ static int verify_chain(Indirect *from, Indirect *to)
284 * get there at all. 284 * get there at all.
285 */ 285 */
286 286
287static int ext3_block_to_path(struct inode *inode, 287static int ext4_block_to_path(struct inode *inode,
288 long i_block, int offsets[4], int *boundary) 288 long i_block, int offsets[4], int *boundary)
289{ 289{
290 int ptrs = EXT3_ADDR_PER_BLOCK(inode->i_sb); 290 int ptrs = EXT4_ADDR_PER_BLOCK(inode->i_sb);
291 int ptrs_bits = EXT3_ADDR_PER_BLOCK_BITS(inode->i_sb); 291 int ptrs_bits = EXT4_ADDR_PER_BLOCK_BITS(inode->i_sb);
292 const long direct_blocks = EXT3_NDIR_BLOCKS, 292 const long direct_blocks = EXT4_NDIR_BLOCKS,
293 indirect_blocks = ptrs, 293 indirect_blocks = ptrs,
294 double_blocks = (1 << (ptrs_bits * 2)); 294 double_blocks = (1 << (ptrs_bits * 2));
295 int n = 0; 295 int n = 0;
296 int final = 0; 296 int final = 0;
297 297
298 if (i_block < 0) { 298 if (i_block < 0) {
299 ext3_warning (inode->i_sb, "ext3_block_to_path", "block < 0"); 299 ext4_warning (inode->i_sb, "ext4_block_to_path", "block < 0");
300 } else if (i_block < direct_blocks) { 300 } else if (i_block < direct_blocks) {
301 offsets[n++] = i_block; 301 offsets[n++] = i_block;
302 final = direct_blocks; 302 final = direct_blocks;
303 } else if ( (i_block -= direct_blocks) < indirect_blocks) { 303 } else if ( (i_block -= direct_blocks) < indirect_blocks) {
304 offsets[n++] = EXT3_IND_BLOCK; 304 offsets[n++] = EXT4_IND_BLOCK;
305 offsets[n++] = i_block; 305 offsets[n++] = i_block;
306 final = ptrs; 306 final = ptrs;
307 } else if ((i_block -= indirect_blocks) < double_blocks) { 307 } else if ((i_block -= indirect_blocks) < double_blocks) {
308 offsets[n++] = EXT3_DIND_BLOCK; 308 offsets[n++] = EXT4_DIND_BLOCK;
309 offsets[n++] = i_block >> ptrs_bits; 309 offsets[n++] = i_block >> ptrs_bits;
310 offsets[n++] = i_block & (ptrs - 1); 310 offsets[n++] = i_block & (ptrs - 1);
311 final = ptrs; 311 final = ptrs;
312 } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) { 312 } else if (((i_block -= double_blocks) >> (ptrs_bits * 2)) < ptrs) {
313 offsets[n++] = EXT3_TIND_BLOCK; 313 offsets[n++] = EXT4_TIND_BLOCK;
314 offsets[n++] = i_block >> (ptrs_bits * 2); 314 offsets[n++] = i_block >> (ptrs_bits * 2);
315 offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1); 315 offsets[n++] = (i_block >> ptrs_bits) & (ptrs - 1);
316 offsets[n++] = i_block & (ptrs - 1); 316 offsets[n++] = i_block & (ptrs - 1);
317 final = ptrs; 317 final = ptrs;
318 } else { 318 } else {
319 ext3_warning(inode->i_sb, "ext3_block_to_path", "block > big"); 319 ext4_warning(inode->i_sb, "ext4_block_to_path", "block > big");
320 } 320 }
321 if (boundary) 321 if (boundary)
322 *boundary = final - 1 - (i_block & (ptrs - 1)); 322 *boundary = final - 1 - (i_block & (ptrs - 1));
@@ -324,7 +324,7 @@ static int ext3_block_to_path(struct inode *inode,
324} 324}
325 325
326/** 326/**
327 * ext3_get_branch - read the chain of indirect blocks leading to data 327 * ext4_get_branch - read the chain of indirect blocks leading to data
328 * @inode: inode in question 328 * @inode: inode in question
329 * @depth: depth of the chain (1 - direct pointer, etc.) 329 * @depth: depth of the chain (1 - direct pointer, etc.)
330 * @offsets: offsets of pointers in inode/indirect blocks 330 * @offsets: offsets of pointers in inode/indirect blocks
@@ -352,7 +352,7 @@ static int ext3_block_to_path(struct inode *inode,
352 * or when it reads all @depth-1 indirect blocks successfully and finds 352 * or when it reads all @depth-1 indirect blocks successfully and finds
353 * the whole chain, all way to the data (returns %NULL, *err == 0). 353 * the whole chain, all way to the data (returns %NULL, *err == 0).
354 */ 354 */
355static Indirect *ext3_get_branch(struct inode *inode, int depth, int *offsets, 355static Indirect *ext4_get_branch(struct inode *inode, int depth, int *offsets,
356 Indirect chain[4], int *err) 356 Indirect chain[4], int *err)
357{ 357{
358 struct super_block *sb = inode->i_sb; 358 struct super_block *sb = inode->i_sb;
@@ -361,7 +361,7 @@ static Indirect *ext3_get_branch(struct inode *inode, int depth, int *offsets,
361 361
362 *err = 0; 362 *err = 0;
363 /* i_data is not going away, no lock needed */ 363 /* i_data is not going away, no lock needed */
364 add_chain (chain, NULL, EXT3_I(inode)->i_data + *offsets); 364 add_chain (chain, NULL, EXT4_I(inode)->i_data + *offsets);
365 if (!p->key) 365 if (!p->key)
366 goto no_block; 366 goto no_block;
367 while (--depth) { 367 while (--depth) {
@@ -389,7 +389,7 @@ no_block:
389} 389}
390 390
391/** 391/**
392 * ext3_find_near - find a place for allocation with sufficient locality 392 * ext4_find_near - find a place for allocation with sufficient locality
393 * @inode: owner 393 * @inode: owner
394 * @ind: descriptor of indirect block. 394 * @ind: descriptor of indirect block.
395 * 395 *
@@ -408,13 +408,13 @@ no_block:
408 * 408 *
409 * Caller must make sure that @ind is valid and will stay that way. 409 * Caller must make sure that @ind is valid and will stay that way.
410 */ 410 */
411static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind) 411static ext4_fsblk_t ext4_find_near(struct inode *inode, Indirect *ind)
412{ 412{
413 struct ext3_inode_info *ei = EXT3_I(inode); 413 struct ext4_inode_info *ei = EXT4_I(inode);
414 __le32 *start = ind->bh ? (__le32*) ind->bh->b_data : ei->i_data; 414 __le32 *start = ind->bh ? (__le32*) ind->bh->b_data : ei->i_data;
415 __le32 *p; 415 __le32 *p;
416 ext3_fsblk_t bg_start; 416 ext4_fsblk_t bg_start;
417 ext3_grpblk_t colour; 417 ext4_grpblk_t colour;
418 418
419 /* Try to find previous block */ 419 /* Try to find previous block */
420 for (p = ind->p - 1; p >= start; p--) { 420 for (p = ind->p - 1; p >= start; p--) {
@@ -430,14 +430,14 @@ static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind)
430 * It is going to be referred to from the inode itself? OK, just put it 430 * It is going to be referred to from the inode itself? OK, just put it
431 * into the same cylinder group then. 431 * into the same cylinder group then.
432 */ 432 */
433 bg_start = ext3_group_first_block_no(inode->i_sb, ei->i_block_group); 433 bg_start = ext4_group_first_block_no(inode->i_sb, ei->i_block_group);
434 colour = (current->pid % 16) * 434 colour = (current->pid % 16) *
435 (EXT3_BLOCKS_PER_GROUP(inode->i_sb) / 16); 435 (EXT4_BLOCKS_PER_GROUP(inode->i_sb) / 16);
436 return bg_start + colour; 436 return bg_start + colour;
437} 437}
438 438
439/** 439/**
440 * ext3_find_goal - find a prefered place for allocation. 440 * ext4_find_goal - find a prefered place for allocation.
441 * @inode: owner 441 * @inode: owner
442 * @block: block we want 442 * @block: block we want
443 * @chain: chain of indirect blocks 443 * @chain: chain of indirect blocks
@@ -448,12 +448,12 @@ static ext3_fsblk_t ext3_find_near(struct inode *inode, Indirect *ind)
448 * stores it in *@goal and returns zero. 448 * stores it in *@goal and returns zero.
449 */ 449 */
450 450
451static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block, 451static ext4_fsblk_t ext4_find_goal(struct inode *inode, long block,
452 Indirect chain[4], Indirect *partial) 452 Indirect chain[4], Indirect *partial)
453{ 453{
454 struct ext3_block_alloc_info *block_i; 454 struct ext4_block_alloc_info *block_i;
455 455
456 block_i = EXT3_I(inode)->i_block_alloc_info; 456 block_i = EXT4_I(inode)->i_block_alloc_info;
457 457
458 /* 458 /*
459 * try the heuristic for sequential allocation, 459 * try the heuristic for sequential allocation,
@@ -464,11 +464,11 @@ static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block,
464 return block_i->last_alloc_physical_block + 1; 464 return block_i->last_alloc_physical_block + 1;
465 } 465 }
466 466
467 return ext3_find_near(inode, partial); 467 return ext4_find_near(inode, partial);
468} 468}
469 469
470/** 470/**
471 * ext3_blks_to_allocate: Look up the block map and count the number 471 * ext4_blks_to_allocate: Look up the block map and count the number
472 * of direct blocks need to be allocated for the given branch. 472 * of direct blocks need to be allocated for the given branch.
473 * 473 *
474 * @branch: chain of indirect blocks 474 * @branch: chain of indirect blocks
@@ -479,7 +479,7 @@ static ext3_fsblk_t ext3_find_goal(struct inode *inode, long block,
479 * return the total number of blocks to be allocate, including the 479 * return the total number of blocks to be allocate, including the
480 * direct and indirect blocks. 480 * direct and indirect blocks.
481 */ 481 */
482static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks, 482static int ext4_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
483 int blocks_to_boundary) 483 int blocks_to_boundary)
484{ 484{
485 unsigned long count = 0; 485 unsigned long count = 0;
@@ -506,7 +506,7 @@ static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
506} 506}
507 507
508/** 508/**
509 * ext3_alloc_blocks: multiple allocate blocks needed for a branch 509 * ext4_alloc_blocks: multiple allocate blocks needed for a branch
510 * @indirect_blks: the number of blocks need to allocate for indirect 510 * @indirect_blks: the number of blocks need to allocate for indirect
511 * blocks 511 * blocks
512 * 512 *
@@ -515,14 +515,14 @@ static int ext3_blks_to_allocate(Indirect *branch, int k, unsigned long blks,
515 * @blks: on return it will store the total number of allocated 515 * @blks: on return it will store the total number of allocated
516 * direct blocks 516 * direct blocks
517 */ 517 */
518static int ext3_alloc_blocks(handle_t *handle, struct inode *inode, 518static int ext4_alloc_blocks(handle_t *handle, struct inode *inode,
519 ext3_fsblk_t goal, int indirect_blks, int blks, 519 ext4_fsblk_t goal, int indirect_blks, int blks,
520 ext3_fsblk_t new_blocks[4], int *err) 520 ext4_fsblk_t new_blocks[4], int *err)
521{ 521{
522 int target, i; 522 int target, i;
523 unsigned long count = 0; 523 unsigned long count = 0;
524 int index = 0; 524 int index = 0;
525 ext3_fsblk_t current_block = 0; 525 ext4_fsblk_t current_block = 0;
526 int ret = 0; 526 int ret = 0;
527 527
528 /* 528 /*
@@ -538,7 +538,7 @@ static int ext3_alloc_blocks(handle_t *handle, struct inode *inode,
538 while (1) { 538 while (1) {
539 count = target; 539 count = target;
540 /* allocating blocks for indirect blocks and direct blocks */ 540 /* allocating blocks for indirect blocks and direct blocks */
541 current_block = ext3_new_blocks(handle,inode,goal,&count,err); 541 current_block = ext4_new_blocks(handle,inode,goal,&count,err);
542 if (*err) 542 if (*err)
543 goto failed_out; 543 goto failed_out;
544 544
@@ -562,12 +562,12 @@ static int ext3_alloc_blocks(handle_t *handle, struct inode *inode,
562 return ret; 562 return ret;
563failed_out: 563failed_out:
564 for (i = 0; i <index; i++) 564 for (i = 0; i <index; i++)
565 ext3_free_blocks(handle, inode, new_blocks[i], 1); 565 ext4_free_blocks(handle, inode, new_blocks[i], 1);
566 return ret; 566 return ret;
567} 567}
568 568
569/** 569/**
570 * ext3_alloc_branch - allocate and set up a chain of blocks. 570 * ext4_alloc_branch - allocate and set up a chain of blocks.
571 * @inode: owner 571 * @inode: owner
572 * @indirect_blks: number of allocated indirect blocks 572 * @indirect_blks: number of allocated indirect blocks
573 * @blks: number of allocated direct blocks 573 * @blks: number of allocated direct blocks
@@ -578,21 +578,21 @@ failed_out:
578 * links them into chain and (if we are synchronous) writes them to disk. 578 * links them into chain and (if we are synchronous) writes them to disk.
579 * In other words, it prepares a branch that can be spliced onto the 579 * In other words, it prepares a branch that can be spliced onto the
580 * inode. It stores the information about that chain in the branch[], in 580 * inode. It stores the information about that chain in the branch[], in
581 * the same format as ext3_get_branch() would do. We are calling it after 581 * the same format as ext4_get_branch() would do. We are calling it after
582 * we had read the existing part of chain and partial points to the last 582 * we had read the existing part of chain and partial points to the last
583 * triple of that (one with zero ->key). Upon the exit we have the same 583 * triple of that (one with zero ->key). Upon the exit we have the same
584 * picture as after the successful ext3_get_block(), except that in one 584 * picture as after the successful ext4_get_block(), except that in one
585 * place chain is disconnected - *branch->p is still zero (we did not 585 * place chain is disconnected - *branch->p is still zero (we did not
586 * set the last link), but branch->key contains the number that should 586 * set the last link), but branch->key contains the number that should
587 * be placed into *branch->p to fill that gap. 587 * be placed into *branch->p to fill that gap.
588 * 588 *
589 * If allocation fails we free all blocks we've allocated (and forget 589 * If allocation fails we free all blocks we've allocated (and forget
590 * their buffer_heads) and return the error value the from failed 590 * their buffer_heads) and return the error value the from failed
591 * ext3_alloc_block() (normally -ENOSPC). Otherwise we set the chain 591 * ext4_alloc_block() (normally -ENOSPC). Otherwise we set the chain
592 * as described above and return 0. 592 * as described above and return 0.
593 */ 593 */
594static int ext3_alloc_branch(handle_t *handle, struct inode *inode, 594static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
595 int indirect_blks, int *blks, ext3_fsblk_t goal, 595 int indirect_blks, int *blks, ext4_fsblk_t goal,
596 int *offsets, Indirect *branch) 596 int *offsets, Indirect *branch)
597{ 597{
598 int blocksize = inode->i_sb->s_blocksize; 598 int blocksize = inode->i_sb->s_blocksize;
@@ -600,10 +600,10 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
600 int err = 0; 600 int err = 0;
601 struct buffer_head *bh; 601 struct buffer_head *bh;
602 int num; 602 int num;
603 ext3_fsblk_t new_blocks[4]; 603 ext4_fsblk_t new_blocks[4];
604 ext3_fsblk_t current_block; 604 ext4_fsblk_t current_block;
605 605
606 num = ext3_alloc_blocks(handle, inode, goal, indirect_blks, 606 num = ext4_alloc_blocks(handle, inode, goal, indirect_blks,
607 *blks, new_blocks, &err); 607 *blks, new_blocks, &err);
608 if (err) 608 if (err)
609 return err; 609 return err;
@@ -622,7 +622,7 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
622 branch[n].bh = bh; 622 branch[n].bh = bh;
623 lock_buffer(bh); 623 lock_buffer(bh);
624 BUFFER_TRACE(bh, "call get_create_access"); 624 BUFFER_TRACE(bh, "call get_create_access");
625 err = ext3_journal_get_create_access(handle, bh); 625 err = ext4_journal_get_create_access(handle, bh);
626 if (err) { 626 if (err) {
627 unlock_buffer(bh); 627 unlock_buffer(bh);
628 brelse(bh); 628 brelse(bh);
@@ -647,8 +647,8 @@ static int ext3_alloc_branch(handle_t *handle, struct inode *inode,
647 set_buffer_uptodate(bh); 647 set_buffer_uptodate(bh);
648 unlock_buffer(bh); 648 unlock_buffer(bh);
649 649
650 BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata"); 650 BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
651 err = ext3_journal_dirty_metadata(handle, bh); 651 err = ext4_journal_dirty_metadata(handle, bh);
652 if (err) 652 if (err)
653 goto failed; 653 goto failed;
654 } 654 }
@@ -658,22 +658,22 @@ failed:
658 /* Allocation failed, free what we already allocated */ 658 /* Allocation failed, free what we already allocated */
659 for (i = 1; i <= n ; i++) { 659 for (i = 1; i <= n ; i++) {
660 BUFFER_TRACE(branch[i].bh, "call journal_forget"); 660 BUFFER_TRACE(branch[i].bh, "call journal_forget");
661 ext3_journal_forget(handle, branch[i].bh); 661 ext4_journal_forget(handle, branch[i].bh);
662 } 662 }
663 for (i = 0; i <indirect_blks; i++) 663 for (i = 0; i <indirect_blks; i++)
664 ext3_free_blocks(handle, inode, new_blocks[i], 1); 664 ext4_free_blocks(handle, inode, new_blocks[i], 1);
665 665
666 ext3_free_blocks(handle, inode, new_blocks[i], num); 666 ext4_free_blocks(handle, inode, new_blocks[i], num);
667 667
668 return err; 668 return err;
669} 669}
670 670
671/** 671/**
672 * ext3_splice_branch - splice the allocated branch onto inode. 672 * ext4_splice_branch - splice the allocated branch onto inode.
673 * @inode: owner 673 * @inode: owner
674 * @block: (logical) number of block we are adding 674 * @block: (logical) number of block we are adding
675 * @chain: chain of indirect blocks (with a missing link - see 675 * @chain: chain of indirect blocks (with a missing link - see
676 * ext3_alloc_branch) 676 * ext4_alloc_branch)
677 * @where: location of missing link 677 * @where: location of missing link
678 * @num: number of indirect blocks we are adding 678 * @num: number of indirect blocks we are adding
679 * @blks: number of direct blocks we are adding 679 * @blks: number of direct blocks we are adding
@@ -682,15 +682,15 @@ failed:
682 * inode (->i_blocks, etc.). In case of success we end up with the full 682 * inode (->i_blocks, etc.). In case of success we end up with the full
683 * chain to new block and return 0. 683 * chain to new block and return 0.
684 */ 684 */
685static int ext3_splice_branch(handle_t *handle, struct inode *inode, 685static int ext4_splice_branch(handle_t *handle, struct inode *inode,
686 long block, Indirect *where, int num, int blks) 686 long block, Indirect *where, int num, int blks)
687{ 687{
688 int i; 688 int i;
689 int err = 0; 689 int err = 0;
690 struct ext3_block_alloc_info *block_i; 690 struct ext4_block_alloc_info *block_i;
691 ext3_fsblk_t current_block; 691 ext4_fsblk_t current_block;
692 692
693 block_i = EXT3_I(inode)->i_block_alloc_info; 693 block_i = EXT4_I(inode)->i_block_alloc_info;
694 /* 694 /*
695 * If we're splicing into a [td]indirect block (as opposed to the 695 * If we're splicing into a [td]indirect block (as opposed to the
696 * inode) then we need to get write access to the [td]indirect block 696 * inode) then we need to get write access to the [td]indirect block
@@ -698,7 +698,7 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode,
698 */ 698 */
699 if (where->bh) { 699 if (where->bh) {
700 BUFFER_TRACE(where->bh, "get_write_access"); 700 BUFFER_TRACE(where->bh, "get_write_access");
701 err = ext3_journal_get_write_access(handle, where->bh); 701 err = ext4_journal_get_write_access(handle, where->bh);
702 if (err) 702 if (err)
703 goto err_out; 703 goto err_out;
704 } 704 }
@@ -730,7 +730,7 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode,
730 /* We are done with atomic stuff, now do the rest of housekeeping */ 730 /* We are done with atomic stuff, now do the rest of housekeeping */
731 731
732 inode->i_ctime = CURRENT_TIME_SEC; 732 inode->i_ctime = CURRENT_TIME_SEC;
733 ext3_mark_inode_dirty(handle, inode); 733 ext4_mark_inode_dirty(handle, inode);
734 734
735 /* had we spliced it onto indirect block? */ 735 /* had we spliced it onto indirect block? */
736 if (where->bh) { 736 if (where->bh) {
@@ -740,11 +740,11 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode,
740 * onto an indirect block at the very end of the file (the 740 * onto an indirect block at the very end of the file (the
741 * file is growing) then we *will* alter the inode to reflect 741 * file is growing) then we *will* alter the inode to reflect
742 * the new i_size. But that is not done here - it is done in 742 * the new i_size. But that is not done here - it is done in
743 * generic_commit_write->__mark_inode_dirty->ext3_dirty_inode. 743 * generic_commit_write->__mark_inode_dirty->ext4_dirty_inode.
744 */ 744 */
745 jbd_debug(5, "splicing indirect only\n"); 745 jbd_debug(5, "splicing indirect only\n");
746 BUFFER_TRACE(where->bh, "call ext3_journal_dirty_metadata"); 746 BUFFER_TRACE(where->bh, "call ext4_journal_dirty_metadata");
747 err = ext3_journal_dirty_metadata(handle, where->bh); 747 err = ext4_journal_dirty_metadata(handle, where->bh);
748 if (err) 748 if (err)
749 goto err_out; 749 goto err_out;
750 } else { 750 } else {
@@ -759,10 +759,10 @@ static int ext3_splice_branch(handle_t *handle, struct inode *inode,
759err_out: 759err_out:
760 for (i = 1; i <= num; i++) { 760 for (i = 1; i <= num; i++) {
761 BUFFER_TRACE(where[i].bh, "call journal_forget"); 761 BUFFER_TRACE(where[i].bh, "call journal_forget");
762 ext3_journal_forget(handle, where[i].bh); 762 ext4_journal_forget(handle, where[i].bh);
763 ext3_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1); 763 ext4_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1);
764 } 764 }
765 ext3_free_blocks(handle, inode, le32_to_cpu(where[num].key), blks); 765 ext4_free_blocks(handle, inode, le32_to_cpu(where[num].key), blks);
766 766
767 return err; 767 return err;
768} 768}
@@ -786,7 +786,7 @@ err_out:
786 * return = 0, if plain lookup failed. 786 * return = 0, if plain lookup failed.
787 * return < 0, error case. 787 * return < 0, error case.
788 */ 788 */
789int ext3_get_blocks_handle(handle_t *handle, struct inode *inode, 789int ext4_get_blocks_handle(handle_t *handle, struct inode *inode,
790 sector_t iblock, unsigned long maxblocks, 790 sector_t iblock, unsigned long maxblocks,
791 struct buffer_head *bh_result, 791 struct buffer_head *bh_result,
792 int create, int extend_disksize) 792 int create, int extend_disksize)
@@ -795,22 +795,22 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
795 int offsets[4]; 795 int offsets[4];
796 Indirect chain[4]; 796 Indirect chain[4];
797 Indirect *partial; 797 Indirect *partial;
798 ext3_fsblk_t goal; 798 ext4_fsblk_t goal;
799 int indirect_blks; 799 int indirect_blks;
800 int blocks_to_boundary = 0; 800 int blocks_to_boundary = 0;
801 int depth; 801 int depth;
802 struct ext3_inode_info *ei = EXT3_I(inode); 802 struct ext4_inode_info *ei = EXT4_I(inode);
803 int count = 0; 803 int count = 0;
804 ext3_fsblk_t first_block = 0; 804 ext4_fsblk_t first_block = 0;
805 805
806 806
807 J_ASSERT(handle != NULL || create == 0); 807 J_ASSERT(handle != NULL || create == 0);
808 depth = ext3_block_to_path(inode,iblock,offsets,&blocks_to_boundary); 808 depth = ext4_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
809 809
810 if (depth == 0) 810 if (depth == 0)
811 goto out; 811 goto out;
812 812
813 partial = ext3_get_branch(inode, depth, offsets, chain, &err); 813 partial = ext4_get_branch(inode, depth, offsets, chain, &err);
814 814
815 /* Simplest case - block found, no allocation needed */ 815 /* Simplest case - block found, no allocation needed */
816 if (!partial) { 816 if (!partial) {
@@ -819,7 +819,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
819 count++; 819 count++;
820 /*map more blocks*/ 820 /*map more blocks*/
821 while (count < maxblocks && count <= blocks_to_boundary) { 821 while (count < maxblocks && count <= blocks_to_boundary) {
822 ext3_fsblk_t blk; 822 ext4_fsblk_t blk;
823 823
824 if (!verify_chain(chain, partial)) { 824 if (!verify_chain(chain, partial)) {
825 /* 825 /*
@@ -852,7 +852,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
852 852
853 /* 853 /*
854 * If the indirect block is missing while we are reading 854 * If the indirect block is missing while we are reading
855 * the chain(ext3_get_branch() returns -EAGAIN err), or 855 * the chain(ext4_get_branch() returns -EAGAIN err), or
856 * if the chain has been changed after we grab the semaphore, 856 * if the chain has been changed after we grab the semaphore,
857 * (either because another process truncated this branch, or 857 * (either because another process truncated this branch, or
858 * another get_block allocated this branch) re-grab the chain to see if 858 * another get_block allocated this branch) re-grab the chain to see if
@@ -867,7 +867,7 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
867 brelse(partial->bh); 867 brelse(partial->bh);
868 partial--; 868 partial--;
869 } 869 }
870 partial = ext3_get_branch(inode, depth, offsets, chain, &err); 870 partial = ext4_get_branch(inode, depth, offsets, chain, &err);
871 if (!partial) { 871 if (!partial) {
872 count++; 872 count++;
873 mutex_unlock(&ei->truncate_mutex); 873 mutex_unlock(&ei->truncate_mutex);
@@ -883,9 +883,9 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
883 * allocation info here if necessary 883 * allocation info here if necessary
884 */ 884 */
885 if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info)) 885 if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info))
886 ext3_init_block_alloc_info(inode); 886 ext4_init_block_alloc_info(inode);
887 887
888 goal = ext3_find_goal(inode, iblock, chain, partial); 888 goal = ext4_find_goal(inode, iblock, chain, partial);
889 889
890 /* the number of blocks need to allocate for [d,t]indirect blocks */ 890 /* the number of blocks need to allocate for [d,t]indirect blocks */
891 indirect_blks = (chain + depth) - partial - 1; 891 indirect_blks = (chain + depth) - partial - 1;
@@ -894,28 +894,28 @@ int ext3_get_blocks_handle(handle_t *handle, struct inode *inode,
894 * Next look up the indirect map to count the totoal number of 894 * Next look up the indirect map to count the totoal number of
895 * direct blocks to allocate for this branch. 895 * direct blocks to allocate for this branch.
896 */ 896 */
897 count = ext3_blks_to_allocate(partial, indirect_blks, 897 count = ext4_blks_to_allocate(partial, indirect_blks,
898 maxblocks, blocks_to_boundary); 898 maxblocks, blocks_to_boundary);
899 /* 899 /*
900 * Block out ext3_truncate while we alter the tree 900 * Block out ext4_truncate while we alter the tree
901 */ 901 */
902 err = ext3_alloc_branch(handle, inode, indirect_blks, &count, goal, 902 err = ext4_alloc_branch(handle, inode, indirect_blks, &count, goal,
903 offsets + (partial - chain), partial); 903 offsets + (partial - chain), partial);
904 904
905 /* 905 /*
906 * The ext3_splice_branch call will free and forget any buffers 906 * The ext4_splice_branch call will free and forget any buffers
907 * on the new chain if there is a failure, but that risks using 907 * on the new chain if there is a failure, but that risks using
908 * up transaction credits, especially for bitmaps where the 908 * up transaction credits, especially for bitmaps where the
909 * credits cannot be returned. Can we handle this somehow? We 909 * credits cannot be returned. Can we handle this somehow? We
910 * may need to return -EAGAIN upwards in the worst case. --sct 910 * may need to return -EAGAIN upwards in the worst case. --sct
911 */ 911 */
912 if (!err) 912 if (!err)
913 err = ext3_splice_branch(handle, inode, iblock, 913 err = ext4_splice_branch(handle, inode, iblock,
914 partial, indirect_blks, count); 914 partial, indirect_blks, count);
915 /* 915 /*
916 * i_disksize growing is protected by truncate_mutex. Don't forget to 916 * i_disksize growing is protected by truncate_mutex. Don't forget to
917 * protect it if you're about to implement concurrent 917 * protect it if you're about to implement concurrent
918 * ext3_get_block() -bzzz 918 * ext4_get_block() -bzzz
919 */ 919 */
920 if (!err && extend_disksize && inode->i_size > ei->i_disksize) 920 if (!err && extend_disksize && inode->i_size > ei->i_disksize)
921 ei->i_disksize = inode->i_size; 921 ei->i_disksize = inode->i_size;
@@ -942,9 +942,9 @@ out:
942 return err; 942 return err;
943} 943}
944 944
945#define DIO_CREDITS (EXT3_RESERVE_TRANS_BLOCKS + 32) 945#define DIO_CREDITS (EXT4_RESERVE_TRANS_BLOCKS + 32)
946 946
947static int ext3_get_block(struct inode *inode, sector_t iblock, 947static int ext4_get_block(struct inode *inode, sector_t iblock,
948 struct buffer_head *bh_result, int create) 948 struct buffer_head *bh_result, int create)
949{ 949{
950 handle_t *handle = journal_current_handle(); 950 handle_t *handle = journal_current_handle();
@@ -962,29 +962,29 @@ static int ext3_get_block(struct inode *inode, sector_t iblock,
962 * Huge direct-io writes can hold off commits for long 962 * Huge direct-io writes can hold off commits for long
963 * periods of time. Let this commit run. 963 * periods of time. Let this commit run.
964 */ 964 */
965 ext3_journal_stop(handle); 965 ext4_journal_stop(handle);
966 handle = ext3_journal_start(inode, DIO_CREDITS); 966 handle = ext4_journal_start(inode, DIO_CREDITS);
967 if (IS_ERR(handle)) 967 if (IS_ERR(handle))
968 ret = PTR_ERR(handle); 968 ret = PTR_ERR(handle);
969 goto get_block; 969 goto get_block;
970 } 970 }
971 971
972 if (handle->h_buffer_credits <= EXT3_RESERVE_TRANS_BLOCKS) { 972 if (handle->h_buffer_credits <= EXT4_RESERVE_TRANS_BLOCKS) {
973 /* 973 /*
974 * Getting low on buffer credits... 974 * Getting low on buffer credits...
975 */ 975 */
976 ret = ext3_journal_extend(handle, DIO_CREDITS); 976 ret = ext4_journal_extend(handle, DIO_CREDITS);
977 if (ret > 0) { 977 if (ret > 0) {
978 /* 978 /*
979 * Couldn't extend the transaction. Start a new one. 979 * Couldn't extend the transaction. Start a new one.
980 */ 980 */
981 ret = ext3_journal_restart(handle, DIO_CREDITS); 981 ret = ext4_journal_restart(handle, DIO_CREDITS);
982 } 982 }
983 } 983 }
984 984
985get_block: 985get_block:
986 if (ret == 0) { 986 if (ret == 0) {
987 ret = ext3_get_blocks_handle(handle, inode, iblock, 987 ret = ext4_get_blocks_handle(handle, inode, iblock,
988 max_blocks, bh_result, create, 0); 988 max_blocks, bh_result, create, 0);
989 if (ret > 0) { 989 if (ret > 0) {
990 bh_result->b_size = (ret << inode->i_blkbits); 990 bh_result->b_size = (ret << inode->i_blkbits);
@@ -997,7 +997,7 @@ get_block:
997/* 997/*
998 * `handle' can be NULL if create is zero 998 * `handle' can be NULL if create is zero
999 */ 999 */
1000struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode, 1000struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,
1001 long block, int create, int *errp) 1001 long block, int create, int *errp)
1002{ 1002{
1003 struct buffer_head dummy; 1003 struct buffer_head dummy;
@@ -1008,10 +1008,10 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode,
1008 dummy.b_state = 0; 1008 dummy.b_state = 0;
1009 dummy.b_blocknr = -1000; 1009 dummy.b_blocknr = -1000;
1010 buffer_trace_init(&dummy.b_history); 1010 buffer_trace_init(&dummy.b_history);
1011 err = ext3_get_blocks_handle(handle, inode, block, 1, 1011 err = ext4_get_blocks_handle(handle, inode, block, 1,
1012 &dummy, create, 1); 1012 &dummy, create, 1);
1013 /* 1013 /*
1014 * ext3_get_blocks_handle() returns number of blocks 1014 * ext4_get_blocks_handle() returns number of blocks
1015 * mapped. 0 in case of a HOLE. 1015 * mapped. 0 in case of a HOLE.
1016 */ 1016 */
1017 if (err > 0) { 1017 if (err > 0) {
@@ -1035,19 +1035,19 @@ struct buffer_head *ext3_getblk(handle_t *handle, struct inode *inode,
1035 * Now that we do not always journal data, we should 1035 * Now that we do not always journal data, we should
1036 * keep in mind whether this should always journal the 1036 * keep in mind whether this should always journal the
1037 * new buffer as metadata. For now, regular file 1037 * new buffer as metadata. For now, regular file
1038 * writes use ext3_get_block instead, so it's not a 1038 * writes use ext4_get_block instead, so it's not a
1039 * problem. 1039 * problem.
1040 */ 1040 */
1041 lock_buffer(bh); 1041 lock_buffer(bh);
1042 BUFFER_TRACE(bh, "call get_create_access"); 1042 BUFFER_TRACE(bh, "call get_create_access");
1043 fatal = ext3_journal_get_create_access(handle, bh); 1043 fatal = ext4_journal_get_create_access(handle, bh);
1044 if (!fatal && !buffer_uptodate(bh)) { 1044 if (!fatal && !buffer_uptodate(bh)) {
1045 memset(bh->b_data,0,inode->i_sb->s_blocksize); 1045 memset(bh->b_data,0,inode->i_sb->s_blocksize);
1046 set_buffer_uptodate(bh); 1046 set_buffer_uptodate(bh);
1047 } 1047 }
1048 unlock_buffer(bh); 1048 unlock_buffer(bh);
1049 BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata"); 1049 BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
1050 err = ext3_journal_dirty_metadata(handle, bh); 1050 err = ext4_journal_dirty_metadata(handle, bh);
1051 if (!fatal) 1051 if (!fatal)
1052 fatal = err; 1052 fatal = err;
1053 } else { 1053 } else {
@@ -1064,12 +1064,12 @@ err:
1064 return NULL; 1064 return NULL;
1065} 1065}
1066 1066
1067struct buffer_head *ext3_bread(handle_t *handle, struct inode *inode, 1067struct buffer_head *ext4_bread(handle_t *handle, struct inode *inode,
1068 int block, int create, int *err) 1068 int block, int create, int *err)
1069{ 1069{
1070 struct buffer_head * bh; 1070 struct buffer_head * bh;
1071 1071
1072 bh = ext3_getblk(handle, inode, block, create, err); 1072 bh = ext4_getblk(handle, inode, block, create, err);
1073 if (!bh) 1073 if (!bh)
1074 return bh; 1074 return bh;
1075 if (buffer_uptodate(bh)) 1075 if (buffer_uptodate(bh))
@@ -1118,17 +1118,17 @@ static int walk_page_buffers( handle_t *handle,
1118/* 1118/*
1119 * To preserve ordering, it is essential that the hole instantiation and 1119 * To preserve ordering, it is essential that the hole instantiation and
1120 * the data write be encapsulated in a single transaction. We cannot 1120 * the data write be encapsulated in a single transaction. We cannot
1121 * close off a transaction and start a new one between the ext3_get_block() 1121 * close off a transaction and start a new one between the ext4_get_block()
1122 * and the commit_write(). So doing the journal_start at the start of 1122 * and the commit_write(). So doing the journal_start at the start of
1123 * prepare_write() is the right place. 1123 * prepare_write() is the right place.
1124 * 1124 *
1125 * Also, this function can nest inside ext3_writepage() -> 1125 * Also, this function can nest inside ext4_writepage() ->
1126 * block_write_full_page(). In that case, we *know* that ext3_writepage() 1126 * block_write_full_page(). In that case, we *know* that ext4_writepage()
1127 * has generated enough buffer credits to do the whole page. So we won't 1127 * has generated enough buffer credits to do the whole page. So we won't
1128 * block on the journal in that case, which is good, because the caller may 1128 * block on the journal in that case, which is good, because the caller may
1129 * be PF_MEMALLOC. 1129 * be PF_MEMALLOC.
1130 * 1130 *
1131 * By accident, ext3 can be reentered when a transaction is open via 1131 * By accident, ext4 can be reentered when a transaction is open via
1132 * quota file writes. If we were to commit the transaction while thus 1132 * quota file writes. If we were to commit the transaction while thus
1133 * reentered, there can be a deadlock - we would be holding a quota 1133 * reentered, there can be a deadlock - we would be holding a quota
1134 * lock, and the commit would never complete if another thread had a 1134 * lock, and the commit would never complete if another thread had a
@@ -1145,48 +1145,48 @@ static int do_journal_get_write_access(handle_t *handle,
1145{ 1145{
1146 if (!buffer_mapped(bh) || buffer_freed(bh)) 1146 if (!buffer_mapped(bh) || buffer_freed(bh))
1147 return 0; 1147 return 0;
1148 return ext3_journal_get_write_access(handle, bh); 1148 return ext4_journal_get_write_access(handle, bh);
1149} 1149}
1150 1150
1151static int ext3_prepare_write(struct file *file, struct page *page, 1151static int ext4_prepare_write(struct file *file, struct page *page,
1152 unsigned from, unsigned to) 1152 unsigned from, unsigned to)
1153{ 1153{
1154 struct inode *inode = page->mapping->host; 1154 struct inode *inode = page->mapping->host;
1155 int ret, needed_blocks = ext3_writepage_trans_blocks(inode); 1155 int ret, needed_blocks = ext4_writepage_trans_blocks(inode);
1156 handle_t *handle; 1156 handle_t *handle;
1157 int retries = 0; 1157 int retries = 0;
1158 1158
1159retry: 1159retry:
1160 handle = ext3_journal_start(inode, needed_blocks); 1160 handle = ext4_journal_start(inode, needed_blocks);
1161 if (IS_ERR(handle)) { 1161 if (IS_ERR(handle)) {
1162 ret = PTR_ERR(handle); 1162 ret = PTR_ERR(handle);
1163 goto out; 1163 goto out;
1164 } 1164 }
1165 if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode)) 1165 if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
1166 ret = nobh_prepare_write(page, from, to, ext3_get_block); 1166 ret = nobh_prepare_write(page, from, to, ext4_get_block);
1167 else 1167 else
1168 ret = block_prepare_write(page, from, to, ext3_get_block); 1168 ret = block_prepare_write(page, from, to, ext4_get_block);
1169 if (ret) 1169 if (ret)
1170 goto prepare_write_failed; 1170 goto prepare_write_failed;
1171 1171
1172 if (ext3_should_journal_data(inode)) { 1172 if (ext4_should_journal_data(inode)) {
1173 ret = walk_page_buffers(handle, page_buffers(page), 1173 ret = walk_page_buffers(handle, page_buffers(page),
1174 from, to, NULL, do_journal_get_write_access); 1174 from, to, NULL, do_journal_get_write_access);
1175 } 1175 }
1176prepare_write_failed: 1176prepare_write_failed:
1177 if (ret) 1177 if (ret)
1178 ext3_journal_stop(handle); 1178 ext4_journal_stop(handle);
1179 if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries)) 1179 if (ret == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
1180 goto retry; 1180 goto retry;
1181out: 1181out:
1182 return ret; 1182 return ret;
1183} 1183}
1184 1184
1185int ext3_journal_dirty_data(handle_t *handle, struct buffer_head *bh) 1185int ext4_journal_dirty_data(handle_t *handle, struct buffer_head *bh)
1186{ 1186{
1187 int err = journal_dirty_data(handle, bh); 1187 int err = journal_dirty_data(handle, bh);
1188 if (err) 1188 if (err)
1189 ext3_journal_abort_handle(__FUNCTION__, __FUNCTION__, 1189 ext4_journal_abort_handle(__FUNCTION__, __FUNCTION__,
1190 bh, handle,err); 1190 bh, handle,err);
1191 return err; 1191 return err;
1192} 1192}
@@ -1197,25 +1197,25 @@ static int commit_write_fn(handle_t *handle, struct buffer_head *bh)
1197 if (!buffer_mapped(bh) || buffer_freed(bh)) 1197 if (!buffer_mapped(bh) || buffer_freed(bh))
1198 return 0; 1198 return 0;
1199 set_buffer_uptodate(bh); 1199 set_buffer_uptodate(bh);
1200 return ext3_journal_dirty_metadata(handle, bh); 1200 return ext4_journal_dirty_metadata(handle, bh);
1201} 1201}
1202 1202
1203/* 1203/*
1204 * We need to pick up the new inode size which generic_commit_write gave us 1204 * We need to pick up the new inode size which generic_commit_write gave us
1205 * `file' can be NULL - eg, when called from page_symlink(). 1205 * `file' can be NULL - eg, when called from page_symlink().
1206 * 1206 *
1207 * ext3 never places buffers on inode->i_mapping->private_list. metadata 1207 * ext4 never places buffers on inode->i_mapping->private_list. metadata
1208 * buffers are managed internally. 1208 * buffers are managed internally.
1209 */ 1209 */
1210static int ext3_ordered_commit_write(struct file *file, struct page *page, 1210static int ext4_ordered_commit_write(struct file *file, struct page *page,
1211 unsigned from, unsigned to) 1211 unsigned from, unsigned to)
1212{ 1212{
1213 handle_t *handle = ext3_journal_current_handle(); 1213 handle_t *handle = ext4_journal_current_handle();
1214 struct inode *inode = page->mapping->host; 1214 struct inode *inode = page->mapping->host;
1215 int ret = 0, ret2; 1215 int ret = 0, ret2;
1216 1216
1217 ret = walk_page_buffers(handle, page_buffers(page), 1217 ret = walk_page_buffers(handle, page_buffers(page),
1218 from, to, NULL, ext3_journal_dirty_data); 1218 from, to, NULL, ext4_journal_dirty_data);
1219 1219
1220 if (ret == 0) { 1220 if (ret == 0) {
1221 /* 1221 /*
@@ -1226,43 +1226,43 @@ static int ext3_ordered_commit_write(struct file *file, struct page *page,
1226 loff_t new_i_size; 1226 loff_t new_i_size;
1227 1227
1228 new_i_size = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to; 1228 new_i_size = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
1229 if (new_i_size > EXT3_I(inode)->i_disksize) 1229 if (new_i_size > EXT4_I(inode)->i_disksize)
1230 EXT3_I(inode)->i_disksize = new_i_size; 1230 EXT4_I(inode)->i_disksize = new_i_size;
1231 ret = generic_commit_write(file, page, from, to); 1231 ret = generic_commit_write(file, page, from, to);
1232 } 1232 }
1233 ret2 = ext3_journal_stop(handle); 1233 ret2 = ext4_journal_stop(handle);
1234 if (!ret) 1234 if (!ret)
1235 ret = ret2; 1235 ret = ret2;
1236 return ret; 1236 return ret;
1237} 1237}
1238 1238
1239static int ext3_writeback_commit_write(struct file *file, struct page *page, 1239static int ext4_writeback_commit_write(struct file *file, struct page *page,
1240 unsigned from, unsigned to) 1240 unsigned from, unsigned to)
1241{ 1241{
1242 handle_t *handle = ext3_journal_current_handle(); 1242 handle_t *handle = ext4_journal_current_handle();
1243 struct inode *inode = page->mapping->host; 1243 struct inode *inode = page->mapping->host;
1244 int ret = 0, ret2; 1244 int ret = 0, ret2;
1245 loff_t new_i_size; 1245 loff_t new_i_size;
1246 1246
1247 new_i_size = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to; 1247 new_i_size = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
1248 if (new_i_size > EXT3_I(inode)->i_disksize) 1248 if (new_i_size > EXT4_I(inode)->i_disksize)
1249 EXT3_I(inode)->i_disksize = new_i_size; 1249 EXT4_I(inode)->i_disksize = new_i_size;
1250 1250
1251 if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode)) 1251 if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
1252 ret = nobh_commit_write(file, page, from, to); 1252 ret = nobh_commit_write(file, page, from, to);
1253 else 1253 else
1254 ret = generic_commit_write(file, page, from, to); 1254 ret = generic_commit_write(file, page, from, to);
1255 1255
1256 ret2 = ext3_journal_stop(handle); 1256 ret2 = ext4_journal_stop(handle);
1257 if (!ret) 1257 if (!ret)
1258 ret = ret2; 1258 ret = ret2;
1259 return ret; 1259 return ret;
1260} 1260}
1261 1261
1262static int ext3_journalled_commit_write(struct file *file, 1262static int ext4_journalled_commit_write(struct file *file,
1263 struct page *page, unsigned from, unsigned to) 1263 struct page *page, unsigned from, unsigned to)
1264{ 1264{
1265 handle_t *handle = ext3_journal_current_handle(); 1265 handle_t *handle = ext4_journal_current_handle();
1266 struct inode *inode = page->mapping->host; 1266 struct inode *inode = page->mapping->host;
1267 int ret = 0, ret2; 1267 int ret = 0, ret2;
1268 int partial = 0; 1268 int partial = 0;
@@ -1279,14 +1279,14 @@ static int ext3_journalled_commit_write(struct file *file,
1279 SetPageUptodate(page); 1279 SetPageUptodate(page);
1280 if (pos > inode->i_size) 1280 if (pos > inode->i_size)
1281 i_size_write(inode, pos); 1281 i_size_write(inode, pos);
1282 EXT3_I(inode)->i_state |= EXT3_STATE_JDATA; 1282 EXT4_I(inode)->i_state |= EXT4_STATE_JDATA;
1283 if (inode->i_size > EXT3_I(inode)->i_disksize) { 1283 if (inode->i_size > EXT4_I(inode)->i_disksize) {
1284 EXT3_I(inode)->i_disksize = inode->i_size; 1284 EXT4_I(inode)->i_disksize = inode->i_size;
1285 ret2 = ext3_mark_inode_dirty(handle, inode); 1285 ret2 = ext4_mark_inode_dirty(handle, inode);
1286 if (!ret) 1286 if (!ret)
1287 ret = ret2; 1287 ret = ret2;
1288 } 1288 }
1289 ret2 = ext3_journal_stop(handle); 1289 ret2 = ext4_journal_stop(handle);
1290 if (!ret) 1290 if (!ret)
1291 ret = ret2; 1291 ret = ret2;
1292 return ret; 1292 return ret;
@@ -1297,7 +1297,7 @@ static int ext3_journalled_commit_write(struct file *file,
1297 * the swapper to find the on-disk block of a specific piece of data. 1297 * the swapper to find the on-disk block of a specific piece of data.
1298 * 1298 *
1299 * Naturally, this is dangerous if the block concerned is still in the 1299 * Naturally, this is dangerous if the block concerned is still in the
1300 * journal. If somebody makes a swapfile on an ext3 data-journaling 1300 * journal. If somebody makes a swapfile on an ext4 data-journaling
1301 * filesystem and enables swap, then they may get a nasty shock when the 1301 * filesystem and enables swap, then they may get a nasty shock when the
1302 * data getting swapped to that swapfile suddenly gets overwritten by 1302 * data getting swapped to that swapfile suddenly gets overwritten by
1303 * the original zero's written out previously to the journal and 1303 * the original zero's written out previously to the journal and
@@ -1306,13 +1306,13 @@ static int ext3_journalled_commit_write(struct file *file,
1306 * So, if we see any bmap calls here on a modified, data-journaled file, 1306 * So, if we see any bmap calls here on a modified, data-journaled file,
1307 * take extra steps to flush any blocks which might be in the cache. 1307 * take extra steps to flush any blocks which might be in the cache.
1308 */ 1308 */
1309static sector_t ext3_bmap(struct address_space *mapping, sector_t block) 1309static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
1310{ 1310{
1311 struct inode *inode = mapping->host; 1311 struct inode *inode = mapping->host;
1312 journal_t *journal; 1312 journal_t *journal;
1313 int err; 1313 int err;
1314 1314
1315 if (EXT3_I(inode)->i_state & EXT3_STATE_JDATA) { 1315 if (EXT4_I(inode)->i_state & EXT4_STATE_JDATA) {
1316 /* 1316 /*
1317 * This is a REALLY heavyweight approach, but the use of 1317 * This is a REALLY heavyweight approach, but the use of
1318 * bmap on dirty files is expected to be extremely rare: 1318 * bmap on dirty files is expected to be extremely rare:
@@ -1324,15 +1324,15 @@ static sector_t ext3_bmap(struct address_space *mapping, sector_t block)
1324 * in trouble if mortal users could trigger this path at 1324 * in trouble if mortal users could trigger this path at
1325 * will.) 1325 * will.)
1326 * 1326 *
1327 * NB. EXT3_STATE_JDATA is not set on files other than 1327 * NB. EXT4_STATE_JDATA is not set on files other than
1328 * regular files. If somebody wants to bmap a directory 1328 * regular files. If somebody wants to bmap a directory
1329 * or symlink and gets confused because the buffer 1329 * or symlink and gets confused because the buffer
1330 * hasn't yet been flushed to disk, they deserve 1330 * hasn't yet been flushed to disk, they deserve
1331 * everything they get. 1331 * everything they get.
1332 */ 1332 */
1333 1333
1334 EXT3_I(inode)->i_state &= ~EXT3_STATE_JDATA; 1334 EXT4_I(inode)->i_state &= ~EXT4_STATE_JDATA;
1335 journal = EXT3_JOURNAL(inode); 1335 journal = EXT4_JOURNAL(inode);
1336 journal_lock_updates(journal); 1336 journal_lock_updates(journal);
1337 err = journal_flush(journal); 1337 err = journal_flush(journal);
1338 journal_unlock_updates(journal); 1338 journal_unlock_updates(journal);
@@ -1341,7 +1341,7 @@ static sector_t ext3_bmap(struct address_space *mapping, sector_t block)
1341 return 0; 1341 return 0;
1342 } 1342 }
1343 1343
1344 return generic_block_bmap(mapping,block,ext3_get_block); 1344 return generic_block_bmap(mapping,block,ext4_get_block);
1345} 1345}
1346 1346
1347static int bget_one(handle_t *handle, struct buffer_head *bh) 1347static int bget_one(handle_t *handle, struct buffer_head *bh)
@@ -1359,14 +1359,14 @@ static int bput_one(handle_t *handle, struct buffer_head *bh)
1359static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh) 1359static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
1360{ 1360{
1361 if (buffer_mapped(bh)) 1361 if (buffer_mapped(bh))
1362 return ext3_journal_dirty_data(handle, bh); 1362 return ext4_journal_dirty_data(handle, bh);
1363 return 0; 1363 return 0;
1364} 1364}
1365 1365
1366/* 1366/*
1367 * Note that we always start a transaction even if we're not journalling 1367 * Note that we always start a transaction even if we're not journalling
1368 * data. This is to preserve ordering: any hole instantiation within 1368 * data. This is to preserve ordering: any hole instantiation within
1369 * __block_write_full_page -> ext3_get_block() should be journalled 1369 * __block_write_full_page -> ext4_get_block() should be journalled
1370 * along with the data so we don't crash and then get metadata which 1370 * along with the data so we don't crash and then get metadata which
1371 * refers to old data. 1371 * refers to old data.
1372 * 1372 *
@@ -1374,14 +1374,14 @@ static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
1374 * 1374 *
1375 * Problem: 1375 * Problem:
1376 * 1376 *
1377 * ext3_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() -> 1377 * ext4_writepage() -> kmalloc() -> __alloc_pages() -> page_launder() ->
1378 * ext3_writepage() 1378 * ext4_writepage()
1379 * 1379 *
1380 * Similar for: 1380 * Similar for:
1381 * 1381 *
1382 * ext3_file_write() -> generic_file_write() -> __alloc_pages() -> ... 1382 * ext4_file_write() -> generic_file_write() -> __alloc_pages() -> ...
1383 * 1383 *
1384 * Same applies to ext3_get_block(). We will deadlock on various things like 1384 * Same applies to ext4_get_block(). We will deadlock on various things like
1385 * lock_journal and i_truncate_mutex. 1385 * lock_journal and i_truncate_mutex.
1386 * 1386 *
1387 * Setting PF_MEMALLOC here doesn't work - too many internal memory 1387 * Setting PF_MEMALLOC here doesn't work - too many internal memory
@@ -1415,7 +1415,7 @@ static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
1415 * AKPM2: if all the page's buffers are mapped to disk and !data=journal, 1415 * AKPM2: if all the page's buffers are mapped to disk and !data=journal,
1416 * we don't need to open a transaction here. 1416 * we don't need to open a transaction here.
1417 */ 1417 */
1418static int ext3_ordered_writepage(struct page *page, 1418static int ext4_ordered_writepage(struct page *page,
1419 struct writeback_control *wbc) 1419 struct writeback_control *wbc)
1420{ 1420{
1421 struct inode *inode = page->mapping->host; 1421 struct inode *inode = page->mapping->host;
@@ -1430,10 +1430,10 @@ static int ext3_ordered_writepage(struct page *page,
1430 * We give up here if we're reentered, because it might be for a 1430 * We give up here if we're reentered, because it might be for a
1431 * different filesystem. 1431 * different filesystem.
1432 */ 1432 */
1433 if (ext3_journal_current_handle()) 1433 if (ext4_journal_current_handle())
1434 goto out_fail; 1434 goto out_fail;
1435 1435
1436 handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode)); 1436 handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
1437 1437
1438 if (IS_ERR(handle)) { 1438 if (IS_ERR(handle)) {
1439 ret = PTR_ERR(handle); 1439 ret = PTR_ERR(handle);
@@ -1448,7 +1448,7 @@ static int ext3_ordered_writepage(struct page *page,
1448 walk_page_buffers(handle, page_bufs, 0, 1448 walk_page_buffers(handle, page_bufs, 0,
1449 PAGE_CACHE_SIZE, NULL, bget_one); 1449 PAGE_CACHE_SIZE, NULL, bget_one);
1450 1450
1451 ret = block_write_full_page(page, ext3_get_block, wbc); 1451 ret = block_write_full_page(page, ext4_get_block, wbc);
1452 1452
1453 /* 1453 /*
1454 * The page can become unlocked at any point now, and 1454 * The page can become unlocked at any point now, and
@@ -1470,7 +1470,7 @@ static int ext3_ordered_writepage(struct page *page,
1470 } 1470 }
1471 walk_page_buffers(handle, page_bufs, 0, 1471 walk_page_buffers(handle, page_bufs, 0,
1472 PAGE_CACHE_SIZE, NULL, bput_one); 1472 PAGE_CACHE_SIZE, NULL, bput_one);
1473 err = ext3_journal_stop(handle); 1473 err = ext4_journal_stop(handle);
1474 if (!ret) 1474 if (!ret)
1475 ret = err; 1475 ret = err;
1476 return ret; 1476 return ret;
@@ -1481,7 +1481,7 @@ out_fail:
1481 return ret; 1481 return ret;
1482} 1482}
1483 1483
1484static int ext3_writeback_writepage(struct page *page, 1484static int ext4_writeback_writepage(struct page *page,
1485 struct writeback_control *wbc) 1485 struct writeback_control *wbc)
1486{ 1486{
1487 struct inode *inode = page->mapping->host; 1487 struct inode *inode = page->mapping->host;
@@ -1489,21 +1489,21 @@ static int ext3_writeback_writepage(struct page *page,
1489 int ret = 0; 1489 int ret = 0;
1490 int err; 1490 int err;
1491 1491
1492 if (ext3_journal_current_handle()) 1492 if (ext4_journal_current_handle())
1493 goto out_fail; 1493 goto out_fail;
1494 1494
1495 handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode)); 1495 handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
1496 if (IS_ERR(handle)) { 1496 if (IS_ERR(handle)) {
1497 ret = PTR_ERR(handle); 1497 ret = PTR_ERR(handle);
1498 goto out_fail; 1498 goto out_fail;
1499 } 1499 }
1500 1500
1501 if (test_opt(inode->i_sb, NOBH) && ext3_should_writeback_data(inode)) 1501 if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode))
1502 ret = nobh_writepage(page, ext3_get_block, wbc); 1502 ret = nobh_writepage(page, ext4_get_block, wbc);
1503 else 1503 else
1504 ret = block_write_full_page(page, ext3_get_block, wbc); 1504 ret = block_write_full_page(page, ext4_get_block, wbc);
1505 1505
1506 err = ext3_journal_stop(handle); 1506 err = ext4_journal_stop(handle);
1507 if (!ret) 1507 if (!ret)
1508 ret = err; 1508 ret = err;
1509 return ret; 1509 return ret;
@@ -1514,7 +1514,7 @@ out_fail:
1514 return ret; 1514 return ret;
1515} 1515}
1516 1516
1517static int ext3_journalled_writepage(struct page *page, 1517static int ext4_journalled_writepage(struct page *page,
1518 struct writeback_control *wbc) 1518 struct writeback_control *wbc)
1519{ 1519{
1520 struct inode *inode = page->mapping->host; 1520 struct inode *inode = page->mapping->host;
@@ -1522,10 +1522,10 @@ static int ext3_journalled_writepage(struct page *page,
1522 int ret = 0; 1522 int ret = 0;
1523 int err; 1523 int err;
1524 1524
1525 if (ext3_journal_current_handle()) 1525 if (ext4_journal_current_handle())
1526 goto no_write; 1526 goto no_write;
1527 1527
1528 handle = ext3_journal_start(inode, ext3_writepage_trans_blocks(inode)); 1528 handle = ext4_journal_start(inode, ext4_writepage_trans_blocks(inode));
1529 if (IS_ERR(handle)) { 1529 if (IS_ERR(handle)) {
1530 ret = PTR_ERR(handle); 1530 ret = PTR_ERR(handle);
1531 goto no_write; 1531 goto no_write;
@@ -1538,9 +1538,9 @@ static int ext3_journalled_writepage(struct page *page,
1538 */ 1538 */
1539 ClearPageChecked(page); 1539 ClearPageChecked(page);
1540 ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE, 1540 ret = block_prepare_write(page, 0, PAGE_CACHE_SIZE,
1541 ext3_get_block); 1541 ext4_get_block);
1542 if (ret != 0) { 1542 if (ret != 0) {
1543 ext3_journal_stop(handle); 1543 ext4_journal_stop(handle);
1544 goto out_unlock; 1544 goto out_unlock;
1545 } 1545 }
1546 ret = walk_page_buffers(handle, page_buffers(page), 0, 1546 ret = walk_page_buffers(handle, page_buffers(page), 0,
@@ -1550,7 +1550,7 @@ static int ext3_journalled_writepage(struct page *page,
1550 PAGE_CACHE_SIZE, NULL, commit_write_fn); 1550 PAGE_CACHE_SIZE, NULL, commit_write_fn);
1551 if (ret == 0) 1551 if (ret == 0)
1552 ret = err; 1552 ret = err;
1553 EXT3_I(inode)->i_state |= EXT3_STATE_JDATA; 1553 EXT4_I(inode)->i_state |= EXT4_STATE_JDATA;
1554 unlock_page(page); 1554 unlock_page(page);
1555 } else { 1555 } else {
1556 /* 1556 /*
@@ -1558,9 +1558,9 @@ static int ext3_journalled_writepage(struct page *page,
1558 * really know unless we go poke around in the buffer_heads. 1558 * really know unless we go poke around in the buffer_heads.
1559 * But block_write_full_page will do the right thing. 1559 * But block_write_full_page will do the right thing.
1560 */ 1560 */
1561 ret = block_write_full_page(page, ext3_get_block, wbc); 1561 ret = block_write_full_page(page, ext4_get_block, wbc);
1562 } 1562 }
1563 err = ext3_journal_stop(handle); 1563 err = ext4_journal_stop(handle);
1564 if (!ret) 1564 if (!ret)
1565 ret = err; 1565 ret = err;
1566out: 1566out:
@@ -1573,21 +1573,21 @@ out_unlock:
1573 goto out; 1573 goto out;
1574} 1574}
1575 1575
1576static int ext3_readpage(struct file *file, struct page *page) 1576static int ext4_readpage(struct file *file, struct page *page)
1577{ 1577{
1578 return mpage_readpage(page, ext3_get_block); 1578 return mpage_readpage(page, ext4_get_block);
1579} 1579}
1580 1580
1581static int 1581static int
1582ext3_readpages(struct file *file, struct address_space *mapping, 1582ext4_readpages(struct file *file, struct address_space *mapping,
1583 struct list_head *pages, unsigned nr_pages) 1583 struct list_head *pages, unsigned nr_pages)
1584{ 1584{
1585 return mpage_readpages(mapping, pages, nr_pages, ext3_get_block); 1585 return mpage_readpages(mapping, pages, nr_pages, ext4_get_block);
1586} 1586}
1587 1587
1588static void ext3_invalidatepage(struct page *page, unsigned long offset) 1588static void ext4_invalidatepage(struct page *page, unsigned long offset)
1589{ 1589{
1590 journal_t *journal = EXT3_JOURNAL(page->mapping->host); 1590 journal_t *journal = EXT4_JOURNAL(page->mapping->host);
1591 1591
1592 /* 1592 /*
1593 * If it's a full truncate we just forget about the pending dirtying 1593 * If it's a full truncate we just forget about the pending dirtying
@@ -1598,9 +1598,9 @@ static void ext3_invalidatepage(struct page *page, unsigned long offset)
1598 journal_invalidatepage(journal, page, offset); 1598 journal_invalidatepage(journal, page, offset);
1599} 1599}
1600 1600
1601static int ext3_releasepage(struct page *page, gfp_t wait) 1601static int ext4_releasepage(struct page *page, gfp_t wait)
1602{ 1602{
1603 journal_t *journal = EXT3_JOURNAL(page->mapping->host); 1603 journal_t *journal = EXT4_JOURNAL(page->mapping->host);
1604 1604
1605 WARN_ON(PageChecked(page)); 1605 WARN_ON(PageChecked(page));
1606 if (!page_has_buffers(page)) 1606 if (!page_has_buffers(page))
@@ -1616,13 +1616,13 @@ static int ext3_releasepage(struct page *page, gfp_t wait)
1616 * If the O_DIRECT write is intantiating holes inside i_size and the machine 1616 * If the O_DIRECT write is intantiating holes inside i_size and the machine
1617 * crashes then stale disk data _may_ be exposed inside the file. 1617 * crashes then stale disk data _may_ be exposed inside the file.
1618 */ 1618 */
1619static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb, 1619static ssize_t ext4_direct_IO(int rw, struct kiocb *iocb,
1620 const struct iovec *iov, loff_t offset, 1620 const struct iovec *iov, loff_t offset,
1621 unsigned long nr_segs) 1621 unsigned long nr_segs)
1622{ 1622{
1623 struct file *file = iocb->ki_filp; 1623 struct file *file = iocb->ki_filp;
1624 struct inode *inode = file->f_mapping->host; 1624 struct inode *inode = file->f_mapping->host;
1625 struct ext3_inode_info *ei = EXT3_I(inode); 1625 struct ext4_inode_info *ei = EXT4_I(inode);
1626 handle_t *handle = NULL; 1626 handle_t *handle = NULL;
1627 ssize_t ret; 1627 ssize_t ret;
1628 int orphan = 0; 1628 int orphan = 0;
@@ -1631,13 +1631,13 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
1631 if (rw == WRITE) { 1631 if (rw == WRITE) {
1632 loff_t final_size = offset + count; 1632 loff_t final_size = offset + count;
1633 1633
1634 handle = ext3_journal_start(inode, DIO_CREDITS); 1634 handle = ext4_journal_start(inode, DIO_CREDITS);
1635 if (IS_ERR(handle)) { 1635 if (IS_ERR(handle)) {
1636 ret = PTR_ERR(handle); 1636 ret = PTR_ERR(handle);
1637 goto out; 1637 goto out;
1638 } 1638 }
1639 if (final_size > inode->i_size) { 1639 if (final_size > inode->i_size) {
1640 ret = ext3_orphan_add(handle, inode); 1640 ret = ext4_orphan_add(handle, inode);
1641 if (ret) 1641 if (ret)
1642 goto out_stop; 1642 goto out_stop;
1643 orphan = 1; 1643 orphan = 1;
@@ -1647,10 +1647,10 @@ static ssize_t ext3_direct_IO(int rw, struct kiocb *iocb,
1647 1647
1648 ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov, 1648 ret = blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
1649 offset, nr_segs, 1649 offset, nr_segs,
1650 ext3_get_block, NULL); 1650 ext4_get_block, NULL);
1651 1651
1652 /* 1652 /*
1653 * Reacquire the handle: ext3_get_block() can restart the transaction 1653 * Reacquire the handle: ext4_get_block() can restart the transaction
1654 */ 1654 */
1655 handle = journal_current_handle(); 1655 handle = journal_current_handle();
1656 1656
@@ -1659,7 +1659,7 @@ out_stop:
1659 int err; 1659 int err;
1660 1660
1661 if (orphan && inode->i_nlink) 1661 if (orphan && inode->i_nlink)
1662 ext3_orphan_del(handle, inode); 1662 ext4_orphan_del(handle, inode);
1663 if (orphan && ret > 0) { 1663 if (orphan && ret > 0) {
1664 loff_t end = offset + ret; 1664 loff_t end = offset + ret;
1665 if (end > inode->i_size) { 1665 if (end > inode->i_size) {
@@ -1669,13 +1669,13 @@ out_stop:
1669 * We're going to return a positive `ret' 1669 * We're going to return a positive `ret'
1670 * here due to non-zero-length I/O, so there's 1670 * here due to non-zero-length I/O, so there's
1671 * no way of reporting error returns from 1671 * no way of reporting error returns from
1672 * ext3_mark_inode_dirty() to userspace. So 1672 * ext4_mark_inode_dirty() to userspace. So
1673 * ignore it. 1673 * ignore it.
1674 */ 1674 */
1675 ext3_mark_inode_dirty(handle, inode); 1675 ext4_mark_inode_dirty(handle, inode);
1676 } 1676 }
1677 } 1677 }
1678 err = ext3_journal_stop(handle); 1678 err = ext4_journal_stop(handle);
1679 if (ret == 0) 1679 if (ret == 0)
1680 ret = err; 1680 ret = err;
1681 } 1681 }
@@ -1684,7 +1684,7 @@ out:
1684} 1684}
1685 1685
1686/* 1686/*
1687 * Pages can be marked dirty completely asynchronously from ext3's journalling 1687 * Pages can be marked dirty completely asynchronously from ext4's journalling
1688 * activity. By filemap_sync_pte(), try_to_unmap_one(), etc. We cannot do 1688 * activity. By filemap_sync_pte(), try_to_unmap_one(), etc. We cannot do
1689 * much here because ->set_page_dirty is called under VFS locks. The page is 1689 * much here because ->set_page_dirty is called under VFS locks. The page is
1690 * not necessarily locked. 1690 * not necessarily locked.
@@ -1696,73 +1696,73 @@ out:
1696 * So what we do is to mark the page "pending dirty" and next time writepage 1696 * So what we do is to mark the page "pending dirty" and next time writepage
1697 * is called, propagate that into the buffers appropriately. 1697 * is called, propagate that into the buffers appropriately.
1698 */ 1698 */
1699static int ext3_journalled_set_page_dirty(struct page *page) 1699static int ext4_journalled_set_page_dirty(struct page *page)
1700{ 1700{
1701 SetPageChecked(page); 1701 SetPageChecked(page);
1702 return __set_page_dirty_nobuffers(page); 1702 return __set_page_dirty_nobuffers(page);
1703} 1703}
1704 1704
1705static const struct address_space_operations ext3_ordered_aops = { 1705static const struct address_space_operations ext4_ordered_aops = {
1706 .readpage = ext3_readpage, 1706 .readpage = ext4_readpage,
1707 .readpages = ext3_readpages, 1707 .readpages = ext4_readpages,
1708 .writepage = ext3_ordered_writepage, 1708 .writepage = ext4_ordered_writepage,
1709 .sync_page = block_sync_page, 1709 .sync_page = block_sync_page,
1710 .prepare_write = ext3_prepare_write, 1710 .prepare_write = ext4_prepare_write,
1711 .commit_write = ext3_ordered_commit_write, 1711 .commit_write = ext4_ordered_commit_write,
1712 .bmap = ext3_bmap, 1712 .bmap = ext4_bmap,
1713 .invalidatepage = ext3_invalidatepage, 1713 .invalidatepage = ext4_invalidatepage,
1714 .releasepage = ext3_releasepage, 1714 .releasepage = ext4_releasepage,
1715 .direct_IO = ext3_direct_IO, 1715 .direct_IO = ext4_direct_IO,
1716 .migratepage = buffer_migrate_page, 1716 .migratepage = buffer_migrate_page,
1717}; 1717};
1718 1718
1719static const struct address_space_operations ext3_writeback_aops = { 1719static const struct address_space_operations ext4_writeback_aops = {
1720 .readpage = ext3_readpage, 1720 .readpage = ext4_readpage,
1721 .readpages = ext3_readpages, 1721 .readpages = ext4_readpages,
1722 .writepage = ext3_writeback_writepage, 1722 .writepage = ext4_writeback_writepage,
1723 .sync_page = block_sync_page, 1723 .sync_page = block_sync_page,
1724 .prepare_write = ext3_prepare_write, 1724 .prepare_write = ext4_prepare_write,
1725 .commit_write = ext3_writeback_commit_write, 1725 .commit_write = ext4_writeback_commit_write,
1726 .bmap = ext3_bmap, 1726 .bmap = ext4_bmap,
1727 .invalidatepage = ext3_invalidatepage, 1727 .invalidatepage = ext4_invalidatepage,
1728 .releasepage = ext3_releasepage, 1728 .releasepage = ext4_releasepage,
1729 .direct_IO = ext3_direct_IO, 1729 .direct_IO = ext4_direct_IO,
1730 .migratepage = buffer_migrate_page, 1730 .migratepage = buffer_migrate_page,
1731}; 1731};
1732 1732
1733static const struct address_space_operations ext3_journalled_aops = { 1733static const struct address_space_operations ext4_journalled_aops = {
1734 .readpage = ext3_readpage, 1734 .readpage = ext4_readpage,
1735 .readpages = ext3_readpages, 1735 .readpages = ext4_readpages,
1736 .writepage = ext3_journalled_writepage, 1736 .writepage = ext4_journalled_writepage,
1737 .sync_page = block_sync_page, 1737 .sync_page = block_sync_page,
1738 .prepare_write = ext3_prepare_write, 1738 .prepare_write = ext4_prepare_write,
1739 .commit_write = ext3_journalled_commit_write, 1739 .commit_write = ext4_journalled_commit_write,
1740 .set_page_dirty = ext3_journalled_set_page_dirty, 1740 .set_page_dirty = ext4_journalled_set_page_dirty,
1741 .bmap = ext3_bmap, 1741 .bmap = ext4_bmap,
1742 .invalidatepage = ext3_invalidatepage, 1742 .invalidatepage = ext4_invalidatepage,
1743 .releasepage = ext3_releasepage, 1743 .releasepage = ext4_releasepage,
1744}; 1744};
1745 1745
1746void ext3_set_aops(struct inode *inode) 1746void ext4_set_aops(struct inode *inode)
1747{ 1747{
1748 if (ext3_should_order_data(inode)) 1748 if (ext4_should_order_data(inode))
1749 inode->i_mapping->a_ops = &ext3_ordered_aops; 1749 inode->i_mapping->a_ops = &ext4_ordered_aops;
1750 else if (ext3_should_writeback_data(inode)) 1750 else if (ext4_should_writeback_data(inode))
1751 inode->i_mapping->a_ops = &ext3_writeback_aops; 1751 inode->i_mapping->a_ops = &ext4_writeback_aops;
1752 else 1752 else
1753 inode->i_mapping->a_ops = &ext3_journalled_aops; 1753 inode->i_mapping->a_ops = &ext4_journalled_aops;
1754} 1754}
1755 1755
1756/* 1756/*
1757 * ext3_block_truncate_page() zeroes out a mapping from file offset `from' 1757 * ext4_block_truncate_page() zeroes out a mapping from file offset `from'
1758 * up to the end of the block which corresponds to `from'. 1758 * up to the end of the block which corresponds to `from'.
1759 * This required during truncate. We need to physically zero the tail end 1759 * This required during truncate. We need to physically zero the tail end
1760 * of that block so it doesn't yield old data if the file is later grown. 1760 * of that block so it doesn't yield old data if the file is later grown.
1761 */ 1761 */
1762static int ext3_block_truncate_page(handle_t *handle, struct page *page, 1762static int ext4_block_truncate_page(handle_t *handle, struct page *page,
1763 struct address_space *mapping, loff_t from) 1763 struct address_space *mapping, loff_t from)
1764{ 1764{
1765 ext3_fsblk_t index = from >> PAGE_CACHE_SHIFT; 1765 ext4_fsblk_t index = from >> PAGE_CACHE_SHIFT;
1766 unsigned offset = from & (PAGE_CACHE_SIZE-1); 1766 unsigned offset = from & (PAGE_CACHE_SIZE-1);
1767 unsigned blocksize, iblock, length, pos; 1767 unsigned blocksize, iblock, length, pos;
1768 struct inode *inode = mapping->host; 1768 struct inode *inode = mapping->host;
@@ -1779,7 +1779,7 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
1779 * read-in the page - otherwise we create buffers to do the IO. 1779 * read-in the page - otherwise we create buffers to do the IO.
1780 */ 1780 */
1781 if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) && 1781 if (!page_has_buffers(page) && test_opt(inode->i_sb, NOBH) &&
1782 ext3_should_writeback_data(inode) && PageUptodate(page)) { 1782 ext4_should_writeback_data(inode) && PageUptodate(page)) {
1783 kaddr = kmap_atomic(page, KM_USER0); 1783 kaddr = kmap_atomic(page, KM_USER0);
1784 memset(kaddr + offset, 0, length); 1784 memset(kaddr + offset, 0, length);
1785 flush_dcache_page(page); 1785 flush_dcache_page(page);
@@ -1808,7 +1808,7 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
1808 1808
1809 if (!buffer_mapped(bh)) { 1809 if (!buffer_mapped(bh)) {
1810 BUFFER_TRACE(bh, "unmapped"); 1810 BUFFER_TRACE(bh, "unmapped");
1811 ext3_get_block(inode, iblock, bh, 0); 1811 ext4_get_block(inode, iblock, bh, 0);
1812 /* unmapped? It's a hole - nothing to do */ 1812 /* unmapped? It's a hole - nothing to do */
1813 if (!buffer_mapped(bh)) { 1813 if (!buffer_mapped(bh)) {
1814 BUFFER_TRACE(bh, "still unmapped"); 1814 BUFFER_TRACE(bh, "still unmapped");
@@ -1829,9 +1829,9 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
1829 goto unlock; 1829 goto unlock;
1830 } 1830 }
1831 1831
1832 if (ext3_should_journal_data(inode)) { 1832 if (ext4_should_journal_data(inode)) {
1833 BUFFER_TRACE(bh, "get write access"); 1833 BUFFER_TRACE(bh, "get write access");
1834 err = ext3_journal_get_write_access(handle, bh); 1834 err = ext4_journal_get_write_access(handle, bh);
1835 if (err) 1835 if (err)
1836 goto unlock; 1836 goto unlock;
1837 } 1837 }
@@ -1844,11 +1844,11 @@ static int ext3_block_truncate_page(handle_t *handle, struct page *page,
1844 BUFFER_TRACE(bh, "zeroed end of block"); 1844 BUFFER_TRACE(bh, "zeroed end of block");
1845 1845
1846 err = 0; 1846 err = 0;
1847 if (ext3_should_journal_data(inode)) { 1847 if (ext4_should_journal_data(inode)) {
1848 err = ext3_journal_dirty_metadata(handle, bh); 1848 err = ext4_journal_dirty_metadata(handle, bh);
1849 } else { 1849 } else {
1850 if (ext3_should_order_data(inode)) 1850 if (ext4_should_order_data(inode))
1851 err = ext3_journal_dirty_data(handle, bh); 1851 err = ext4_journal_dirty_data(handle, bh);
1852 mark_buffer_dirty(bh); 1852 mark_buffer_dirty(bh);
1853 } 1853 }
1854 1854
@@ -1872,14 +1872,14 @@ static inline int all_zeroes(__le32 *p, __le32 *q)
1872} 1872}
1873 1873
1874/** 1874/**
1875 * ext3_find_shared - find the indirect blocks for partial truncation. 1875 * ext4_find_shared - find the indirect blocks for partial truncation.
1876 * @inode: inode in question 1876 * @inode: inode in question
1877 * @depth: depth of the affected branch 1877 * @depth: depth of the affected branch
1878 * @offsets: offsets of pointers in that branch (see ext3_block_to_path) 1878 * @offsets: offsets of pointers in that branch (see ext4_block_to_path)
1879 * @chain: place to store the pointers to partial indirect blocks 1879 * @chain: place to store the pointers to partial indirect blocks
1880 * @top: place to the (detached) top of branch 1880 * @top: place to the (detached) top of branch
1881 * 1881 *
1882 * This is a helper function used by ext3_truncate(). 1882 * This is a helper function used by ext4_truncate().
1883 * 1883 *
1884 * When we do truncate() we may have to clean the ends of several 1884 * When we do truncate() we may have to clean the ends of several
1885 * indirect blocks but leave the blocks themselves alive. Block is 1885 * indirect blocks but leave the blocks themselves alive. Block is
@@ -1887,7 +1887,7 @@ static inline int all_zeroes(__le32 *p, __le32 *q)
1887 * from it (and it is on the path to the first completely truncated 1887 * from it (and it is on the path to the first completely truncated
1888 * data block, indeed). We have to free the top of that path along 1888 * data block, indeed). We have to free the top of that path along
1889 * with everything to the right of the path. Since no allocation 1889 * with everything to the right of the path. Since no allocation
1890 * past the truncation point is possible until ext3_truncate() 1890 * past the truncation point is possible until ext4_truncate()
1891 * finishes, we may safely do the latter, but top of branch may 1891 * finishes, we may safely do the latter, but top of branch may
1892 * require special attention - pageout below the truncation point 1892 * require special attention - pageout below the truncation point
1893 * might try to populate it. 1893 * might try to populate it.
@@ -1906,7 +1906,7 @@ static inline int all_zeroes(__le32 *p, __le32 *q)
1906 * c) free the subtrees growing from the inode past the @chain[0]. 1906 * c) free the subtrees growing from the inode past the @chain[0].
1907 * (no partially truncated stuff there). */ 1907 * (no partially truncated stuff there). */
1908 1908
1909static Indirect *ext3_find_shared(struct inode *inode, int depth, 1909static Indirect *ext4_find_shared(struct inode *inode, int depth,
1910 int offsets[4], Indirect chain[4], __le32 *top) 1910 int offsets[4], Indirect chain[4], __le32 *top)
1911{ 1911{
1912 Indirect *partial, *p; 1912 Indirect *partial, *p;
@@ -1916,7 +1916,7 @@ static Indirect *ext3_find_shared(struct inode *inode, int depth,
1916 /* Make k index the deepest non-null offest + 1 */ 1916 /* Make k index the deepest non-null offest + 1 */
1917 for (k = depth; k > 1 && !offsets[k-1]; k--) 1917 for (k = depth; k > 1 && !offsets[k-1]; k--)
1918 ; 1918 ;
1919 partial = ext3_get_branch(inode, k, offsets, chain, &err); 1919 partial = ext4_get_branch(inode, k, offsets, chain, &err);
1920 /* Writer: pointers */ 1920 /* Writer: pointers */
1921 if (!partial) 1921 if (!partial)
1922 partial = chain + k-1; 1922 partial = chain + k-1;
@@ -1939,7 +1939,7 @@ static Indirect *ext3_find_shared(struct inode *inode, int depth,
1939 p->p--; 1939 p->p--;
1940 } else { 1940 } else {
1941 *top = *p->p; 1941 *top = *p->p;
1942 /* Nope, don't do this in ext3. Must leave the tree intact */ 1942 /* Nope, don't do this in ext4. Must leave the tree intact */
1943#if 0 1943#if 0
1944 *p->p = 0; 1944 *p->p = 0;
1945#endif 1945#endif
@@ -1962,21 +1962,21 @@ no_top:
1962 * We release `count' blocks on disk, but (last - first) may be greater 1962 * We release `count' blocks on disk, but (last - first) may be greater
1963 * than `count' because there can be holes in there. 1963 * than `count' because there can be holes in there.
1964 */ 1964 */
1965static void ext3_clear_blocks(handle_t *handle, struct inode *inode, 1965static void ext4_clear_blocks(handle_t *handle, struct inode *inode,
1966 struct buffer_head *bh, ext3_fsblk_t block_to_free, 1966 struct buffer_head *bh, ext4_fsblk_t block_to_free,
1967 unsigned long count, __le32 *first, __le32 *last) 1967 unsigned long count, __le32 *first, __le32 *last)
1968{ 1968{
1969 __le32 *p; 1969 __le32 *p;
1970 if (try_to_extend_transaction(handle, inode)) { 1970 if (try_to_extend_transaction(handle, inode)) {
1971 if (bh) { 1971 if (bh) {
1972 BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata"); 1972 BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
1973 ext3_journal_dirty_metadata(handle, bh); 1973 ext4_journal_dirty_metadata(handle, bh);
1974 } 1974 }
1975 ext3_mark_inode_dirty(handle, inode); 1975 ext4_mark_inode_dirty(handle, inode);
1976 ext3_journal_test_restart(handle, inode); 1976 ext4_journal_test_restart(handle, inode);
1977 if (bh) { 1977 if (bh) {
1978 BUFFER_TRACE(bh, "retaking write access"); 1978 BUFFER_TRACE(bh, "retaking write access");
1979 ext3_journal_get_write_access(handle, bh); 1979 ext4_journal_get_write_access(handle, bh);
1980 } 1980 }
1981 } 1981 }
1982 1982
@@ -1995,15 +1995,15 @@ static void ext3_clear_blocks(handle_t *handle, struct inode *inode,
1995 1995
1996 *p = 0; 1996 *p = 0;
1997 bh = sb_find_get_block(inode->i_sb, nr); 1997 bh = sb_find_get_block(inode->i_sb, nr);
1998 ext3_forget(handle, 0, inode, bh, nr); 1998 ext4_forget(handle, 0, inode, bh, nr);
1999 } 1999 }
2000 } 2000 }
2001 2001
2002 ext3_free_blocks(handle, inode, block_to_free, count); 2002 ext4_free_blocks(handle, inode, block_to_free, count);
2003} 2003}
2004 2004
2005/** 2005/**
2006 * ext3_free_data - free a list of data blocks 2006 * ext4_free_data - free a list of data blocks
2007 * @handle: handle for this transaction 2007 * @handle: handle for this transaction
2008 * @inode: inode we are dealing with 2008 * @inode: inode we are dealing with
2009 * @this_bh: indirect buffer_head which contains *@first and *@last 2009 * @this_bh: indirect buffer_head which contains *@first and *@last
@@ -2021,23 +2021,23 @@ static void ext3_clear_blocks(handle_t *handle, struct inode *inode,
2021 * @this_bh will be %NULL if @first and @last point into the inode's direct 2021 * @this_bh will be %NULL if @first and @last point into the inode's direct
2022 * block pointers. 2022 * block pointers.
2023 */ 2023 */
2024static void ext3_free_data(handle_t *handle, struct inode *inode, 2024static void ext4_free_data(handle_t *handle, struct inode *inode,
2025 struct buffer_head *this_bh, 2025 struct buffer_head *this_bh,
2026 __le32 *first, __le32 *last) 2026 __le32 *first, __le32 *last)
2027{ 2027{
2028 ext3_fsblk_t block_to_free = 0; /* Starting block # of a run */ 2028 ext4_fsblk_t block_to_free = 0; /* Starting block # of a run */
2029 unsigned long count = 0; /* Number of blocks in the run */ 2029 unsigned long count = 0; /* Number of blocks in the run */
2030 __le32 *block_to_free_p = NULL; /* Pointer into inode/ind 2030 __le32 *block_to_free_p = NULL; /* Pointer into inode/ind
2031 corresponding to 2031 corresponding to
2032 block_to_free */ 2032 block_to_free */
2033 ext3_fsblk_t nr; /* Current block # */ 2033 ext4_fsblk_t nr; /* Current block # */
2034 __le32 *p; /* Pointer into inode/ind 2034 __le32 *p; /* Pointer into inode/ind
2035 for current block */ 2035 for current block */
2036 int err; 2036 int err;
2037 2037
2038 if (this_bh) { /* For indirect block */ 2038 if (this_bh) { /* For indirect block */
2039 BUFFER_TRACE(this_bh, "get_write_access"); 2039 BUFFER_TRACE(this_bh, "get_write_access");
2040 err = ext3_journal_get_write_access(handle, this_bh); 2040 err = ext4_journal_get_write_access(handle, this_bh);
2041 /* Important: if we can't update the indirect pointers 2041 /* Important: if we can't update the indirect pointers
2042 * to the blocks, we can't free them. */ 2042 * to the blocks, we can't free them. */
2043 if (err) 2043 if (err)
@@ -2055,7 +2055,7 @@ static void ext3_free_data(handle_t *handle, struct inode *inode,
2055 } else if (nr == block_to_free + count) { 2055 } else if (nr == block_to_free + count) {
2056 count++; 2056 count++;
2057 } else { 2057 } else {
2058 ext3_clear_blocks(handle, inode, this_bh, 2058 ext4_clear_blocks(handle, inode, this_bh,
2059 block_to_free, 2059 block_to_free,
2060 count, block_to_free_p, p); 2060 count, block_to_free_p, p);
2061 block_to_free = nr; 2061 block_to_free = nr;
@@ -2066,17 +2066,17 @@ static void ext3_free_data(handle_t *handle, struct inode *inode,
2066 } 2066 }
2067 2067
2068 if (count > 0) 2068 if (count > 0)
2069 ext3_clear_blocks(handle, inode, this_bh, block_to_free, 2069 ext4_clear_blocks(handle, inode, this_bh, block_to_free,
2070 count, block_to_free_p, p); 2070 count, block_to_free_p, p);
2071 2071
2072 if (this_bh) { 2072 if (this_bh) {
2073 BUFFER_TRACE(this_bh, "call ext3_journal_dirty_metadata"); 2073 BUFFER_TRACE(this_bh, "call ext4_journal_dirty_metadata");
2074 ext3_journal_dirty_metadata(handle, this_bh); 2074 ext4_journal_dirty_metadata(handle, this_bh);
2075 } 2075 }
2076} 2076}
2077 2077
2078/** 2078/**
2079 * ext3_free_branches - free an array of branches 2079 * ext4_free_branches - free an array of branches
2080 * @handle: JBD handle for this transaction 2080 * @handle: JBD handle for this transaction
2081 * @inode: inode we are dealing with 2081 * @inode: inode we are dealing with
2082 * @parent_bh: the buffer_head which contains *@first and *@last 2082 * @parent_bh: the buffer_head which contains *@first and *@last
@@ -2088,11 +2088,11 @@ static void ext3_free_data(handle_t *handle, struct inode *inode,
2088 * stored as little-endian 32-bit) and updating @inode->i_blocks 2088 * stored as little-endian 32-bit) and updating @inode->i_blocks
2089 * appropriately. 2089 * appropriately.
2090 */ 2090 */
2091static void ext3_free_branches(handle_t *handle, struct inode *inode, 2091static void ext4_free_branches(handle_t *handle, struct inode *inode,
2092 struct buffer_head *parent_bh, 2092 struct buffer_head *parent_bh,
2093 __le32 *first, __le32 *last, int depth) 2093 __le32 *first, __le32 *last, int depth)
2094{ 2094{
2095 ext3_fsblk_t nr; 2095 ext4_fsblk_t nr;
2096 __le32 *p; 2096 __le32 *p;
2097 2097
2098 if (is_handle_aborted(handle)) 2098 if (is_handle_aborted(handle))
@@ -2100,7 +2100,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2100 2100
2101 if (depth--) { 2101 if (depth--) {
2102 struct buffer_head *bh; 2102 struct buffer_head *bh;
2103 int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb); 2103 int addr_per_block = EXT4_ADDR_PER_BLOCK(inode->i_sb);
2104 p = last; 2104 p = last;
2105 while (--p >= first) { 2105 while (--p >= first) {
2106 nr = le32_to_cpu(*p); 2106 nr = le32_to_cpu(*p);
@@ -2115,7 +2115,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2115 * (should be rare). 2115 * (should be rare).
2116 */ 2116 */
2117 if (!bh) { 2117 if (!bh) {
2118 ext3_error(inode->i_sb, "ext3_free_branches", 2118 ext4_error(inode->i_sb, "ext4_free_branches",
2119 "Read failure, inode=%lu, block="E3FSBLK, 2119 "Read failure, inode=%lu, block="E3FSBLK,
2120 inode->i_ino, nr); 2120 inode->i_ino, nr);
2121 continue; 2121 continue;
@@ -2123,7 +2123,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2123 2123
2124 /* This zaps the entire block. Bottom up. */ 2124 /* This zaps the entire block. Bottom up. */
2125 BUFFER_TRACE(bh, "free child branches"); 2125 BUFFER_TRACE(bh, "free child branches");
2126 ext3_free_branches(handle, inode, bh, 2126 ext4_free_branches(handle, inode, bh,
2127 (__le32*)bh->b_data, 2127 (__le32*)bh->b_data,
2128 (__le32*)bh->b_data + addr_per_block, 2128 (__le32*)bh->b_data + addr_per_block,
2129 depth); 2129 depth);
@@ -2138,7 +2138,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2138 * transaction. But if it's part of the committing 2138 * transaction. But if it's part of the committing
2139 * transaction then journal_forget() will simply 2139 * transaction then journal_forget() will simply
2140 * brelse() it. That means that if the underlying 2140 * brelse() it. That means that if the underlying
2141 * block is reallocated in ext3_get_block(), 2141 * block is reallocated in ext4_get_block(),
2142 * unmap_underlying_metadata() will find this block 2142 * unmap_underlying_metadata() will find this block
2143 * and will try to get rid of it. damn, damn. 2143 * and will try to get rid of it. damn, damn.
2144 * 2144 *
@@ -2147,7 +2147,7 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2147 * revoke records must be emitted *before* clearing 2147 * revoke records must be emitted *before* clearing
2148 * this block's bit in the bitmaps. 2148 * this block's bit in the bitmaps.
2149 */ 2149 */
2150 ext3_forget(handle, 1, inode, bh, bh->b_blocknr); 2150 ext4_forget(handle, 1, inode, bh, bh->b_blocknr);
2151 2151
2152 /* 2152 /*
2153 * Everything below this this pointer has been 2153 * Everything below this this pointer has been
@@ -2168,11 +2168,11 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2168 if (is_handle_aborted(handle)) 2168 if (is_handle_aborted(handle))
2169 return; 2169 return;
2170 if (try_to_extend_transaction(handle, inode)) { 2170 if (try_to_extend_transaction(handle, inode)) {
2171 ext3_mark_inode_dirty(handle, inode); 2171 ext4_mark_inode_dirty(handle, inode);
2172 ext3_journal_test_restart(handle, inode); 2172 ext4_journal_test_restart(handle, inode);
2173 } 2173 }
2174 2174
2175 ext3_free_blocks(handle, inode, nr, 1); 2175 ext4_free_blocks(handle, inode, nr, 1);
2176 2176
2177 if (parent_bh) { 2177 if (parent_bh) {
2178 /* 2178 /*
@@ -2180,12 +2180,12 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2180 * pointed to by an indirect block: journal it 2180 * pointed to by an indirect block: journal it
2181 */ 2181 */
2182 BUFFER_TRACE(parent_bh, "get_write_access"); 2182 BUFFER_TRACE(parent_bh, "get_write_access");
2183 if (!ext3_journal_get_write_access(handle, 2183 if (!ext4_journal_get_write_access(handle,
2184 parent_bh)){ 2184 parent_bh)){
2185 *p = 0; 2185 *p = 0;
2186 BUFFER_TRACE(parent_bh, 2186 BUFFER_TRACE(parent_bh,
2187 "call ext3_journal_dirty_metadata"); 2187 "call ext4_journal_dirty_metadata");
2188 ext3_journal_dirty_metadata(handle, 2188 ext4_journal_dirty_metadata(handle,
2189 parent_bh); 2189 parent_bh);
2190 } 2190 }
2191 } 2191 }
@@ -2193,15 +2193,15 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2193 } else { 2193 } else {
2194 /* We have reached the bottom of the tree. */ 2194 /* We have reached the bottom of the tree. */
2195 BUFFER_TRACE(parent_bh, "free data blocks"); 2195 BUFFER_TRACE(parent_bh, "free data blocks");
2196 ext3_free_data(handle, inode, parent_bh, first, last); 2196 ext4_free_data(handle, inode, parent_bh, first, last);
2197 } 2197 }
2198} 2198}
2199 2199
2200/* 2200/*
2201 * ext3_truncate() 2201 * ext4_truncate()
2202 * 2202 *
2203 * We block out ext3_get_block() block instantiations across the entire 2203 * We block out ext4_get_block() block instantiations across the entire
2204 * transaction, and VFS/VM ensures that ext3_truncate() cannot run 2204 * transaction, and VFS/VM ensures that ext4_truncate() cannot run
2205 * simultaneously on behalf of the same inode. 2205 * simultaneously on behalf of the same inode.
2206 * 2206 *
2207 * As we work through the truncate and commmit bits of it to the journal there 2207 * As we work through the truncate and commmit bits of it to the journal there
@@ -2218,19 +2218,19 @@ static void ext3_free_branches(handle_t *handle, struct inode *inode,
2218 * truncate against the orphan inode list. 2218 * truncate against the orphan inode list.
2219 * 2219 *
2220 * The committed inode has the new, desired i_size (which is the same as 2220 * The committed inode has the new, desired i_size (which is the same as
2221 * i_disksize in this case). After a crash, ext3_orphan_cleanup() will see 2221 * i_disksize in this case). After a crash, ext4_orphan_cleanup() will see
2222 * that this inode's truncate did not complete and it will again call 2222 * that this inode's truncate did not complete and it will again call
2223 * ext3_truncate() to have another go. So there will be instantiated blocks 2223 * ext4_truncate() to have another go. So there will be instantiated blocks
2224 * to the right of the truncation point in a crashed ext3 filesystem. But 2224 * to the right of the truncation point in a crashed ext4 filesystem. But
2225 * that's fine - as long as they are linked from the inode, the post-crash 2225 * that's fine - as long as they are linked from the inode, the post-crash
2226 * ext3_truncate() run will find them and release them. 2226 * ext4_truncate() run will find them and release them.
2227 */ 2227 */
2228void ext3_truncate(struct inode *inode) 2228void ext4_truncate(struct inode *inode)
2229{ 2229{
2230 handle_t *handle; 2230 handle_t *handle;
2231 struct ext3_inode_info *ei = EXT3_I(inode); 2231 struct ext4_inode_info *ei = EXT4_I(inode);
2232 __le32 *i_data = ei->i_data; 2232 __le32 *i_data = ei->i_data;
2233 int addr_per_block = EXT3_ADDR_PER_BLOCK(inode->i_sb); 2233 int addr_per_block = EXT4_ADDR_PER_BLOCK(inode->i_sb);
2234 struct address_space *mapping = inode->i_mapping; 2234 struct address_space *mapping = inode->i_mapping;
2235 int offsets[4]; 2235 int offsets[4];
2236 Indirect chain[4]; 2236 Indirect chain[4];
@@ -2244,7 +2244,7 @@ void ext3_truncate(struct inode *inode)
2244 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || 2244 if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
2245 S_ISLNK(inode->i_mode))) 2245 S_ISLNK(inode->i_mode)))
2246 return; 2246 return;
2247 if (ext3_inode_is_fast_symlink(inode)) 2247 if (ext4_inode_is_fast_symlink(inode))
2248 return; 2248 return;
2249 if (IS_APPEND(inode) || IS_IMMUTABLE(inode)) 2249 if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
2250 return; 2250 return;
@@ -2275,12 +2275,12 @@ void ext3_truncate(struct inode *inode)
2275 } 2275 }
2276 2276
2277 last_block = (inode->i_size + blocksize-1) 2277 last_block = (inode->i_size + blocksize-1)
2278 >> EXT3_BLOCK_SIZE_BITS(inode->i_sb); 2278 >> EXT4_BLOCK_SIZE_BITS(inode->i_sb);
2279 2279
2280 if (page) 2280 if (page)
2281 ext3_block_truncate_page(handle, page, mapping, inode->i_size); 2281 ext4_block_truncate_page(handle, page, mapping, inode->i_size);
2282 2282
2283 n = ext3_block_to_path(inode, last_block, offsets, NULL); 2283 n = ext4_block_to_path(inode, last_block, offsets, NULL);
2284 if (n == 0) 2284 if (n == 0)
2285 goto out_stop; /* error */ 2285 goto out_stop; /* error */
2286 2286
@@ -2293,7 +2293,7 @@ void ext3_truncate(struct inode *inode)
2293 * Implication: the file must always be in a sane, consistent 2293 * Implication: the file must always be in a sane, consistent
2294 * truncatable state while each transaction commits. 2294 * truncatable state while each transaction commits.
2295 */ 2295 */
2296 if (ext3_orphan_add(handle, inode)) 2296 if (ext4_orphan_add(handle, inode))
2297 goto out_stop; 2297 goto out_stop;
2298 2298
2299 /* 2299 /*
@@ -2301,28 +2301,28 @@ void ext3_truncate(struct inode *inode)
2301 * occurs before the truncate completes, so it is now safe to propagate 2301 * occurs before the truncate completes, so it is now safe to propagate
2302 * the new, shorter inode size (held for now in i_size) into the 2302 * the new, shorter inode size (held for now in i_size) into the
2303 * on-disk inode. We do this via i_disksize, which is the value which 2303 * on-disk inode. We do this via i_disksize, which is the value which
2304 * ext3 *really* writes onto the disk inode. 2304 * ext4 *really* writes onto the disk inode.
2305 */ 2305 */
2306 ei->i_disksize = inode->i_size; 2306 ei->i_disksize = inode->i_size;
2307 2307
2308 /* 2308 /*
2309 * From here we block out all ext3_get_block() callers who want to 2309 * From here we block out all ext4_get_block() callers who want to
2310 * modify the block allocation tree. 2310 * modify the block allocation tree.
2311 */ 2311 */
2312 mutex_lock(&ei->truncate_mutex); 2312 mutex_lock(&ei->truncate_mutex);
2313 2313
2314 if (n == 1) { /* direct blocks */ 2314 if (n == 1) { /* direct blocks */
2315 ext3_free_data(handle, inode, NULL, i_data+offsets[0], 2315 ext4_free_data(handle, inode, NULL, i_data+offsets[0],
2316 i_data + EXT3_NDIR_BLOCKS); 2316 i_data + EXT4_NDIR_BLOCKS);
2317 goto do_indirects; 2317 goto do_indirects;
2318 } 2318 }
2319 2319
2320 partial = ext3_find_shared(inode, n, offsets, chain, &nr); 2320 partial = ext4_find_shared(inode, n, offsets, chain, &nr);
2321 /* Kill the top of shared branch (not detached) */ 2321 /* Kill the top of shared branch (not detached) */
2322 if (nr) { 2322 if (nr) {
2323 if (partial == chain) { 2323 if (partial == chain) {
2324 /* Shared branch grows from the inode */ 2324 /* Shared branch grows from the inode */
2325 ext3_free_branches(handle, inode, NULL, 2325 ext4_free_branches(handle, inode, NULL,
2326 &nr, &nr+1, (chain+n-1) - partial); 2326 &nr, &nr+1, (chain+n-1) - partial);
2327 *partial->p = 0; 2327 *partial->p = 0;
2328 /* 2328 /*
@@ -2332,14 +2332,14 @@ void ext3_truncate(struct inode *inode)
2332 } else { 2332 } else {
2333 /* Shared branch grows from an indirect block */ 2333 /* Shared branch grows from an indirect block */
2334 BUFFER_TRACE(partial->bh, "get_write_access"); 2334 BUFFER_TRACE(partial->bh, "get_write_access");
2335 ext3_free_branches(handle, inode, partial->bh, 2335 ext4_free_branches(handle, inode, partial->bh,
2336 partial->p, 2336 partial->p,
2337 partial->p+1, (chain+n-1) - partial); 2337 partial->p+1, (chain+n-1) - partial);
2338 } 2338 }
2339 } 2339 }
2340 /* Clear the ends of indirect blocks on the shared branch */ 2340 /* Clear the ends of indirect blocks on the shared branch */
2341 while (partial > chain) { 2341 while (partial > chain) {
2342 ext3_free_branches(handle, inode, partial->bh, partial->p + 1, 2342 ext4_free_branches(handle, inode, partial->bh, partial->p + 1,
2343 (__le32*)partial->bh->b_data+addr_per_block, 2343 (__le32*)partial->bh->b_data+addr_per_block,
2344 (chain+n-1) - partial); 2344 (chain+n-1) - partial);
2345 BUFFER_TRACE(partial->bh, "call brelse"); 2345 BUFFER_TRACE(partial->bh, "call brelse");
@@ -2350,32 +2350,32 @@ do_indirects:
2350 /* Kill the remaining (whole) subtrees */ 2350 /* Kill the remaining (whole) subtrees */
2351 switch (offsets[0]) { 2351 switch (offsets[0]) {
2352 default: 2352 default:
2353 nr = i_data[EXT3_IND_BLOCK]; 2353 nr = i_data[EXT4_IND_BLOCK];
2354 if (nr) { 2354 if (nr) {
2355 ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 1); 2355 ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 1);
2356 i_data[EXT3_IND_BLOCK] = 0; 2356 i_data[EXT4_IND_BLOCK] = 0;
2357 } 2357 }
2358 case EXT3_IND_BLOCK: 2358 case EXT4_IND_BLOCK:
2359 nr = i_data[EXT3_DIND_BLOCK]; 2359 nr = i_data[EXT4_DIND_BLOCK];
2360 if (nr) { 2360 if (nr) {
2361 ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 2); 2361 ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 2);
2362 i_data[EXT3_DIND_BLOCK] = 0; 2362 i_data[EXT4_DIND_BLOCK] = 0;
2363 } 2363 }
2364 case EXT3_DIND_BLOCK: 2364 case EXT4_DIND_BLOCK:
2365 nr = i_data[EXT3_TIND_BLOCK]; 2365 nr = i_data[EXT4_TIND_BLOCK];
2366 if (nr) { 2366 if (nr) {
2367 ext3_free_branches(handle, inode, NULL, &nr, &nr+1, 3); 2367 ext4_free_branches(handle, inode, NULL, &nr, &nr+1, 3);
2368 i_data[EXT3_TIND_BLOCK] = 0; 2368 i_data[EXT4_TIND_BLOCK] = 0;
2369 } 2369 }
2370 case EXT3_TIND_BLOCK: 2370 case EXT4_TIND_BLOCK:
2371 ; 2371 ;
2372 } 2372 }
2373 2373
2374 ext3_discard_reservation(inode); 2374 ext4_discard_reservation(inode);
2375 2375
2376 mutex_unlock(&ei->truncate_mutex); 2376 mutex_unlock(&ei->truncate_mutex);
2377 inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC; 2377 inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
2378 ext3_mark_inode_dirty(handle, inode); 2378 ext4_mark_inode_dirty(handle, inode);
2379 2379
2380 /* 2380 /*
2381 * In a multi-transaction truncate, we only make the final transaction 2381 * In a multi-transaction truncate, we only make the final transaction
@@ -2388,25 +2388,25 @@ out_stop:
2388 * If this was a simple ftruncate(), and the file will remain alive 2388 * If this was a simple ftruncate(), and the file will remain alive
2389 * then we need to clear up the orphan record which we created above. 2389 * then we need to clear up the orphan record which we created above.
2390 * However, if this was a real unlink then we were called by 2390 * However, if this was a real unlink then we were called by
2391 * ext3_delete_inode(), and we allow that function to clean up the 2391 * ext4_delete_inode(), and we allow that function to clean up the
2392 * orphan info for us. 2392 * orphan info for us.
2393 */ 2393 */
2394 if (inode->i_nlink) 2394 if (inode->i_nlink)
2395 ext3_orphan_del(handle, inode); 2395 ext4_orphan_del(handle, inode);
2396 2396
2397 ext3_journal_stop(handle); 2397 ext4_journal_stop(handle);
2398} 2398}
2399 2399
2400static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb, 2400static ext4_fsblk_t ext4_get_inode_block(struct super_block *sb,
2401 unsigned long ino, struct ext3_iloc *iloc) 2401 unsigned long ino, struct ext4_iloc *iloc)
2402{ 2402{
2403 unsigned long desc, group_desc, block_group; 2403 unsigned long desc, group_desc, block_group;
2404 unsigned long offset; 2404 unsigned long offset;
2405 ext3_fsblk_t block; 2405 ext4_fsblk_t block;
2406 struct buffer_head *bh; 2406 struct buffer_head *bh;
2407 struct ext3_group_desc * gdp; 2407 struct ext4_group_desc * gdp;
2408 2408
2409 if (!ext3_valid_inum(sb, ino)) { 2409 if (!ext4_valid_inum(sb, ino)) {
2410 /* 2410 /*
2411 * This error is already checked for in namei.c unless we are 2411 * This error is already checked for in namei.c unless we are
2412 * looking at an NFS filehandle, in which case no error 2412 * looking at an NFS filehandle, in which case no error
@@ -2415,54 +2415,54 @@ static ext3_fsblk_t ext3_get_inode_block(struct super_block *sb,
2415 return 0; 2415 return 0;
2416 } 2416 }
2417 2417
2418 block_group = (ino - 1) / EXT3_INODES_PER_GROUP(sb); 2418 block_group = (ino - 1) / EXT4_INODES_PER_GROUP(sb);
2419 if (block_group >= EXT3_SB(sb)->s_groups_count) { 2419 if (block_group >= EXT4_SB(sb)->s_groups_count) {
2420 ext3_error(sb,"ext3_get_inode_block","group >= groups count"); 2420 ext4_error(sb,"ext4_get_inode_block","group >= groups count");
2421 return 0; 2421 return 0;
2422 } 2422 }
2423 smp_rmb(); 2423 smp_rmb();
2424 group_desc = block_group >> EXT3_DESC_PER_BLOCK_BITS(sb); 2424 group_desc = block_group >> EXT4_DESC_PER_BLOCK_BITS(sb);
2425 desc = block_group & (EXT3_DESC_PER_BLOCK(sb) - 1); 2425 desc = block_group & (EXT4_DESC_PER_BLOCK(sb) - 1);
2426 bh = EXT3_SB(sb)->s_group_desc[group_desc]; 2426 bh = EXT4_SB(sb)->s_group_desc[group_desc];
2427 if (!bh) { 2427 if (!bh) {
2428 ext3_error (sb, "ext3_get_inode_block", 2428 ext4_error (sb, "ext4_get_inode_block",
2429 "Descriptor not loaded"); 2429 "Descriptor not loaded");
2430 return 0; 2430 return 0;
2431 } 2431 }
2432 2432
2433 gdp = (struct ext3_group_desc *)bh->b_data; 2433 gdp = (struct ext4_group_desc *)bh->b_data;
2434 /* 2434 /*
2435 * Figure out the offset within the block group inode table 2435 * Figure out the offset within the block group inode table
2436 */ 2436 */
2437 offset = ((ino - 1) % EXT3_INODES_PER_GROUP(sb)) * 2437 offset = ((ino - 1) % EXT4_INODES_PER_GROUP(sb)) *
2438 EXT3_INODE_SIZE(sb); 2438 EXT4_INODE_SIZE(sb);
2439 block = le32_to_cpu(gdp[desc].bg_inode_table) + 2439 block = le32_to_cpu(gdp[desc].bg_inode_table) +
2440 (offset >> EXT3_BLOCK_SIZE_BITS(sb)); 2440 (offset >> EXT4_BLOCK_SIZE_BITS(sb));
2441 2441
2442 iloc->block_group = block_group; 2442 iloc->block_group = block_group;
2443 iloc->offset = offset & (EXT3_BLOCK_SIZE(sb) - 1); 2443 iloc->offset = offset & (EXT4_BLOCK_SIZE(sb) - 1);
2444 return block; 2444 return block;
2445} 2445}
2446 2446
2447/* 2447/*
2448 * ext3_get_inode_loc returns with an extra refcount against the inode's 2448 * ext4_get_inode_loc returns with an extra refcount against the inode's
2449 * underlying buffer_head on success. If 'in_mem' is true, we have all 2449 * underlying buffer_head on success. If 'in_mem' is true, we have all
2450 * data in memory that is needed to recreate the on-disk version of this 2450 * data in memory that is needed to recreate the on-disk version of this
2451 * inode. 2451 * inode.
2452 */ 2452 */
2453static int __ext3_get_inode_loc(struct inode *inode, 2453static int __ext4_get_inode_loc(struct inode *inode,
2454 struct ext3_iloc *iloc, int in_mem) 2454 struct ext4_iloc *iloc, int in_mem)
2455{ 2455{
2456 ext3_fsblk_t block; 2456 ext4_fsblk_t block;
2457 struct buffer_head *bh; 2457 struct buffer_head *bh;
2458 2458
2459 block = ext3_get_inode_block(inode->i_sb, inode->i_ino, iloc); 2459 block = ext4_get_inode_block(inode->i_sb, inode->i_ino, iloc);
2460 if (!block) 2460 if (!block)
2461 return -EIO; 2461 return -EIO;
2462 2462
2463 bh = sb_getblk(inode->i_sb, block); 2463 bh = sb_getblk(inode->i_sb, block);
2464 if (!bh) { 2464 if (!bh) {
2465 ext3_error (inode->i_sb, "ext3_get_inode_loc", 2465 ext4_error (inode->i_sb, "ext4_get_inode_loc",
2466 "unable to read inode block - " 2466 "unable to read inode block - "
2467 "inode=%lu, block="E3FSBLK, 2467 "inode=%lu, block="E3FSBLK,
2468 inode->i_ino, block); 2468 inode->i_ino, block);
@@ -2483,22 +2483,22 @@ static int __ext3_get_inode_loc(struct inode *inode,
2483 */ 2483 */
2484 if (in_mem) { 2484 if (in_mem) {
2485 struct buffer_head *bitmap_bh; 2485 struct buffer_head *bitmap_bh;
2486 struct ext3_group_desc *desc; 2486 struct ext4_group_desc *desc;
2487 int inodes_per_buffer; 2487 int inodes_per_buffer;
2488 int inode_offset, i; 2488 int inode_offset, i;
2489 int block_group; 2489 int block_group;
2490 int start; 2490 int start;
2491 2491
2492 block_group = (inode->i_ino - 1) / 2492 block_group = (inode->i_ino - 1) /
2493 EXT3_INODES_PER_GROUP(inode->i_sb); 2493 EXT4_INODES_PER_GROUP(inode->i_sb);
2494 inodes_per_buffer = bh->b_size / 2494 inodes_per_buffer = bh->b_size /
2495 EXT3_INODE_SIZE(inode->i_sb); 2495 EXT4_INODE_SIZE(inode->i_sb);
2496 inode_offset = ((inode->i_ino - 1) % 2496 inode_offset = ((inode->i_ino - 1) %
2497 EXT3_INODES_PER_GROUP(inode->i_sb)); 2497 EXT4_INODES_PER_GROUP(inode->i_sb));
2498 start = inode_offset & ~(inodes_per_buffer - 1); 2498 start = inode_offset & ~(inodes_per_buffer - 1);
2499 2499
2500 /* Is the inode bitmap in cache? */ 2500 /* Is the inode bitmap in cache? */
2501 desc = ext3_get_group_desc(inode->i_sb, 2501 desc = ext4_get_group_desc(inode->i_sb,
2502 block_group, NULL); 2502 block_group, NULL);
2503 if (!desc) 2503 if (!desc)
2504 goto make_io; 2504 goto make_io;
@@ -2520,7 +2520,7 @@ static int __ext3_get_inode_loc(struct inode *inode,
2520 for (i = start; i < start + inodes_per_buffer; i++) { 2520 for (i = start; i < start + inodes_per_buffer; i++) {
2521 if (i == inode_offset) 2521 if (i == inode_offset)
2522 continue; 2522 continue;
2523 if (ext3_test_bit(i, bitmap_bh->b_data)) 2523 if (ext4_test_bit(i, bitmap_bh->b_data))
2524 break; 2524 break;
2525 } 2525 }
2526 brelse(bitmap_bh); 2526 brelse(bitmap_bh);
@@ -2544,7 +2544,7 @@ make_io:
2544 submit_bh(READ_META, bh); 2544 submit_bh(READ_META, bh);
2545 wait_on_buffer(bh); 2545 wait_on_buffer(bh);
2546 if (!buffer_uptodate(bh)) { 2546 if (!buffer_uptodate(bh)) {
2547 ext3_error(inode->i_sb, "ext3_get_inode_loc", 2547 ext4_error(inode->i_sb, "ext4_get_inode_loc",
2548 "unable to read inode block - " 2548 "unable to read inode block - "
2549 "inode=%lu, block="E3FSBLK, 2549 "inode=%lu, block="E3FSBLK,
2550 inode->i_ino, block); 2550 inode->i_ino, block);
@@ -2557,48 +2557,48 @@ has_buffer:
2557 return 0; 2557 return 0;
2558} 2558}
2559 2559
2560int ext3_get_inode_loc(struct inode *inode, struct ext3_iloc *iloc) 2560int ext4_get_inode_loc(struct inode *inode, struct ext4_iloc *iloc)
2561{ 2561{
2562 /* We have all inode data except xattrs in memory here. */ 2562 /* We have all inode data except xattrs in memory here. */
2563 return __ext3_get_inode_loc(inode, iloc, 2563 return __ext4_get_inode_loc(inode, iloc,
2564 !(EXT3_I(inode)->i_state & EXT3_STATE_XATTR)); 2564 !(EXT4_I(inode)->i_state & EXT4_STATE_XATTR));
2565} 2565}
2566 2566
2567void ext3_set_inode_flags(struct inode *inode) 2567void ext4_set_inode_flags(struct inode *inode)
2568{ 2568{
2569 unsigned int flags = EXT3_I(inode)->i_flags; 2569 unsigned int flags = EXT4_I(inode)->i_flags;
2570 2570
2571 inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC); 2571 inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
2572 if (flags & EXT3_SYNC_FL) 2572 if (flags & EXT4_SYNC_FL)
2573 inode->i_flags |= S_SYNC; 2573 inode->i_flags |= S_SYNC;
2574 if (flags & EXT3_APPEND_FL) 2574 if (flags & EXT4_APPEND_FL)
2575 inode->i_flags |= S_APPEND; 2575 inode->i_flags |= S_APPEND;
2576 if (flags & EXT3_IMMUTABLE_FL) 2576 if (flags & EXT4_IMMUTABLE_FL)
2577 inode->i_flags |= S_IMMUTABLE; 2577 inode->i_flags |= S_IMMUTABLE;
2578 if (flags & EXT3_NOATIME_FL) 2578 if (flags & EXT4_NOATIME_FL)
2579 inode->i_flags |= S_NOATIME; 2579 inode->i_flags |= S_NOATIME;
2580 if (flags & EXT3_DIRSYNC_FL) 2580 if (flags & EXT4_DIRSYNC_FL)
2581 inode->i_flags |= S_DIRSYNC; 2581 inode->i_flags |= S_DIRSYNC;
2582} 2582}
2583 2583
2584void ext3_read_inode(struct inode * inode) 2584void ext4_read_inode(struct inode * inode)
2585{ 2585{
2586 struct ext3_iloc iloc; 2586 struct ext4_iloc iloc;
2587 struct ext3_inode *raw_inode; 2587 struct ext4_inode *raw_inode;
2588 struct ext3_inode_info *ei = EXT3_I(inode); 2588 struct ext4_inode_info *ei = EXT4_I(inode);
2589 struct buffer_head *bh; 2589 struct buffer_head *bh;
2590 int block; 2590 int block;
2591 2591
2592#ifdef CONFIG_EXT3_FS_POSIX_ACL 2592#ifdef CONFIG_EXT4DEV_FS_POSIX_ACL
2593 ei->i_acl = EXT3_ACL_NOT_CACHED; 2593 ei->i_acl = EXT4_ACL_NOT_CACHED;
2594 ei->i_default_acl = EXT3_ACL_NOT_CACHED; 2594 ei->i_default_acl = EXT4_ACL_NOT_CACHED;
2595#endif 2595#endif
2596 ei->i_block_alloc_info = NULL; 2596 ei->i_block_alloc_info = NULL;
2597 2597
2598 if (__ext3_get_inode_loc(inode, &iloc, 0)) 2598 if (__ext4_get_inode_loc(inode, &iloc, 0))
2599 goto bad_inode; 2599 goto bad_inode;
2600 bh = iloc.bh; 2600 bh = iloc.bh;
2601 raw_inode = ext3_raw_inode(&iloc); 2601 raw_inode = ext4_raw_inode(&iloc);
2602 inode->i_mode = le16_to_cpu(raw_inode->i_mode); 2602 inode->i_mode = le16_to_cpu(raw_inode->i_mode);
2603 inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); 2603 inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
2604 inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low); 2604 inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
@@ -2623,7 +2623,7 @@ void ext3_read_inode(struct inode * inode)
2623 */ 2623 */
2624 if (inode->i_nlink == 0) { 2624 if (inode->i_nlink == 0) {
2625 if (inode->i_mode == 0 || 2625 if (inode->i_mode == 0 ||
2626 !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ORPHAN_FS)) { 2626 !(EXT4_SB(inode->i_sb)->s_mount_state & EXT4_ORPHAN_FS)) {
2627 /* this inode is deleted */ 2627 /* this inode is deleted */
2628 brelse (bh); 2628 brelse (bh);
2629 goto bad_inode; 2629 goto bad_inode;
@@ -2635,7 +2635,7 @@ void ext3_read_inode(struct inode * inode)
2635 } 2635 }
2636 inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); 2636 inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
2637 ei->i_flags = le32_to_cpu(raw_inode->i_flags); 2637 ei->i_flags = le32_to_cpu(raw_inode->i_flags);
2638#ifdef EXT3_FRAGMENTS 2638#ifdef EXT4_FRAGMENTS
2639 ei->i_faddr = le32_to_cpu(raw_inode->i_faddr); 2639 ei->i_faddr = le32_to_cpu(raw_inode->i_faddr);
2640 ei->i_frag_no = raw_inode->i_frag; 2640 ei->i_frag_no = raw_inode->i_frag;
2641 ei->i_frag_size = raw_inode->i_fsize; 2641 ei->i_frag_size = raw_inode->i_fsize;
@@ -2654,51 +2654,51 @@ void ext3_read_inode(struct inode * inode)
2654 * NOTE! The in-memory inode i_data array is in little-endian order 2654 * NOTE! The in-memory inode i_data array is in little-endian order
2655 * even on big-endian machines: we do NOT byteswap the block numbers! 2655 * even on big-endian machines: we do NOT byteswap the block numbers!
2656 */ 2656 */
2657 for (block = 0; block < EXT3_N_BLOCKS; block++) 2657 for (block = 0; block < EXT4_N_BLOCKS; block++)
2658 ei->i_data[block] = raw_inode->i_block[block]; 2658 ei->i_data[block] = raw_inode->i_block[block];
2659 INIT_LIST_HEAD(&ei->i_orphan); 2659 INIT_LIST_HEAD(&ei->i_orphan);
2660 2660
2661 if (inode->i_ino >= EXT3_FIRST_INO(inode->i_sb) + 1 && 2661 if (inode->i_ino >= EXT4_FIRST_INO(inode->i_sb) + 1 &&
2662 EXT3_INODE_SIZE(inode->i_sb) > EXT3_GOOD_OLD_INODE_SIZE) { 2662 EXT4_INODE_SIZE(inode->i_sb) > EXT4_GOOD_OLD_INODE_SIZE) {
2663 /* 2663 /*
2664 * When mke2fs creates big inodes it does not zero out 2664 * When mke2fs creates big inodes it does not zero out
2665 * the unused bytes above EXT3_GOOD_OLD_INODE_SIZE, 2665 * the unused bytes above EXT4_GOOD_OLD_INODE_SIZE,
2666 * so ignore those first few inodes. 2666 * so ignore those first few inodes.
2667 */ 2667 */
2668 ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize); 2668 ei->i_extra_isize = le16_to_cpu(raw_inode->i_extra_isize);
2669 if (EXT3_GOOD_OLD_INODE_SIZE + ei->i_extra_isize > 2669 if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize >
2670 EXT3_INODE_SIZE(inode->i_sb)) 2670 EXT4_INODE_SIZE(inode->i_sb))
2671 goto bad_inode; 2671 goto bad_inode;
2672 if (ei->i_extra_isize == 0) { 2672 if (ei->i_extra_isize == 0) {
2673 /* The extra space is currently unused. Use it. */ 2673 /* The extra space is currently unused. Use it. */
2674 ei->i_extra_isize = sizeof(struct ext3_inode) - 2674 ei->i_extra_isize = sizeof(struct ext4_inode) -
2675 EXT3_GOOD_OLD_INODE_SIZE; 2675 EXT4_GOOD_OLD_INODE_SIZE;
2676 } else { 2676 } else {
2677 __le32 *magic = (void *)raw_inode + 2677 __le32 *magic = (void *)raw_inode +
2678 EXT3_GOOD_OLD_INODE_SIZE + 2678 EXT4_GOOD_OLD_INODE_SIZE +
2679 ei->i_extra_isize; 2679 ei->i_extra_isize;
2680 if (*magic == cpu_to_le32(EXT3_XATTR_MAGIC)) 2680 if (*magic == cpu_to_le32(EXT4_XATTR_MAGIC))
2681 ei->i_state |= EXT3_STATE_XATTR; 2681 ei->i_state |= EXT4_STATE_XATTR;
2682 } 2682 }
2683 } else 2683 } else
2684 ei->i_extra_isize = 0; 2684 ei->i_extra_isize = 0;
2685 2685
2686 if (S_ISREG(inode->i_mode)) { 2686 if (S_ISREG(inode->i_mode)) {
2687 inode->i_op = &ext3_file_inode_operations; 2687 inode->i_op = &ext4_file_inode_operations;
2688 inode->i_fop = &ext3_file_operations; 2688 inode->i_fop = &ext4_file_operations;
2689 ext3_set_aops(inode); 2689 ext4_set_aops(inode);
2690 } else if (S_ISDIR(inode->i_mode)) { 2690 } else if (S_ISDIR(inode->i_mode)) {
2691 inode->i_op = &ext3_dir_inode_operations; 2691 inode->i_op = &ext4_dir_inode_operations;
2692 inode->i_fop = &ext3_dir_operations; 2692 inode->i_fop = &ext4_dir_operations;
2693 } else if (S_ISLNK(inode->i_mode)) { 2693 } else if (S_ISLNK(inode->i_mode)) {
2694 if (ext3_inode_is_fast_symlink(inode)) 2694 if (ext4_inode_is_fast_symlink(inode))
2695 inode->i_op = &ext3_fast_symlink_inode_operations; 2695 inode->i_op = &ext4_fast_symlink_inode_operations;
2696 else { 2696 else {
2697 inode->i_op = &ext3_symlink_inode_operations; 2697 inode->i_op = &ext4_symlink_inode_operations;
2698 ext3_set_aops(inode); 2698 ext4_set_aops(inode);
2699 } 2699 }
2700 } else { 2700 } else {
2701 inode->i_op = &ext3_special_inode_operations; 2701 inode->i_op = &ext4_special_inode_operations;
2702 if (raw_inode->i_block[0]) 2702 if (raw_inode->i_block[0])
2703 init_special_inode(inode, inode->i_mode, 2703 init_special_inode(inode, inode->i_mode,
2704 old_decode_dev(le32_to_cpu(raw_inode->i_block[0]))); 2704 old_decode_dev(le32_to_cpu(raw_inode->i_block[0])));
@@ -2707,7 +2707,7 @@ void ext3_read_inode(struct inode * inode)
2707 new_decode_dev(le32_to_cpu(raw_inode->i_block[1]))); 2707 new_decode_dev(le32_to_cpu(raw_inode->i_block[1])));
2708 } 2708 }
2709 brelse (iloc.bh); 2709 brelse (iloc.bh);
2710 ext3_set_inode_flags(inode); 2710 ext4_set_inode_flags(inode);
2711 return; 2711 return;
2712 2712
2713bad_inode: 2713bad_inode:
@@ -2722,19 +2722,19 @@ bad_inode:
2722 * 2722 *
2723 * The caller must have write access to iloc->bh. 2723 * The caller must have write access to iloc->bh.
2724 */ 2724 */
2725static int ext3_do_update_inode(handle_t *handle, 2725static int ext4_do_update_inode(handle_t *handle,
2726 struct inode *inode, 2726 struct inode *inode,
2727 struct ext3_iloc *iloc) 2727 struct ext4_iloc *iloc)
2728{ 2728{
2729 struct ext3_inode *raw_inode = ext3_raw_inode(iloc); 2729 struct ext4_inode *raw_inode = ext4_raw_inode(iloc);
2730 struct ext3_inode_info *ei = EXT3_I(inode); 2730 struct ext4_inode_info *ei = EXT4_I(inode);
2731 struct buffer_head *bh = iloc->bh; 2731 struct buffer_head *bh = iloc->bh;
2732 int err = 0, rc, block; 2732 int err = 0, rc, block;
2733 2733
2734 /* For fields not not tracking in the in-memory inode, 2734 /* For fields not not tracking in the in-memory inode,
2735 * initialise them to zero for new inodes. */ 2735 * initialise them to zero for new inodes. */
2736 if (ei->i_state & EXT3_STATE_NEW) 2736 if (ei->i_state & EXT4_STATE_NEW)
2737 memset(raw_inode, 0, EXT3_SB(inode->i_sb)->s_inode_size); 2737 memset(raw_inode, 0, EXT4_SB(inode->i_sb)->s_inode_size);
2738 2738
2739 raw_inode->i_mode = cpu_to_le16(inode->i_mode); 2739 raw_inode->i_mode = cpu_to_le16(inode->i_mode);
2740 if(!(test_opt(inode->i_sb, NO_UID32))) { 2740 if(!(test_opt(inode->i_sb, NO_UID32))) {
@@ -2769,7 +2769,7 @@ static int ext3_do_update_inode(handle_t *handle,
2769 raw_inode->i_blocks = cpu_to_le32(inode->i_blocks); 2769 raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
2770 raw_inode->i_dtime = cpu_to_le32(ei->i_dtime); 2770 raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
2771 raw_inode->i_flags = cpu_to_le32(ei->i_flags); 2771 raw_inode->i_flags = cpu_to_le32(ei->i_flags);
2772#ifdef EXT3_FRAGMENTS 2772#ifdef EXT4_FRAGMENTS
2773 raw_inode->i_faddr = cpu_to_le32(ei->i_faddr); 2773 raw_inode->i_faddr = cpu_to_le32(ei->i_faddr);
2774 raw_inode->i_frag = ei->i_frag_no; 2774 raw_inode->i_frag = ei->i_frag_no;
2775 raw_inode->i_fsize = ei->i_frag_size; 2775 raw_inode->i_fsize = ei->i_frag_size;
@@ -2782,24 +2782,24 @@ static int ext3_do_update_inode(handle_t *handle,
2782 cpu_to_le32(ei->i_disksize >> 32); 2782 cpu_to_le32(ei->i_disksize >> 32);
2783 if (ei->i_disksize > 0x7fffffffULL) { 2783 if (ei->i_disksize > 0x7fffffffULL) {
2784 struct super_block *sb = inode->i_sb; 2784 struct super_block *sb = inode->i_sb;
2785 if (!EXT3_HAS_RO_COMPAT_FEATURE(sb, 2785 if (!EXT4_HAS_RO_COMPAT_FEATURE(sb,
2786 EXT3_FEATURE_RO_COMPAT_LARGE_FILE) || 2786 EXT4_FEATURE_RO_COMPAT_LARGE_FILE) ||
2787 EXT3_SB(sb)->s_es->s_rev_level == 2787 EXT4_SB(sb)->s_es->s_rev_level ==
2788 cpu_to_le32(EXT3_GOOD_OLD_REV)) { 2788 cpu_to_le32(EXT4_GOOD_OLD_REV)) {
2789 /* If this is the first large file 2789 /* If this is the first large file
2790 * created, add a flag to the superblock. 2790 * created, add a flag to the superblock.
2791 */ 2791 */
2792 err = ext3_journal_get_write_access(handle, 2792 err = ext4_journal_get_write_access(handle,
2793 EXT3_SB(sb)->s_sbh); 2793 EXT4_SB(sb)->s_sbh);
2794 if (err) 2794 if (err)
2795 goto out_brelse; 2795 goto out_brelse;
2796 ext3_update_dynamic_rev(sb); 2796 ext4_update_dynamic_rev(sb);
2797 EXT3_SET_RO_COMPAT_FEATURE(sb, 2797 EXT4_SET_RO_COMPAT_FEATURE(sb,
2798 EXT3_FEATURE_RO_COMPAT_LARGE_FILE); 2798 EXT4_FEATURE_RO_COMPAT_LARGE_FILE);
2799 sb->s_dirt = 1; 2799 sb->s_dirt = 1;
2800 handle->h_sync = 1; 2800 handle->h_sync = 1;
2801 err = ext3_journal_dirty_metadata(handle, 2801 err = ext4_journal_dirty_metadata(handle,
2802 EXT3_SB(sb)->s_sbh); 2802 EXT4_SB(sb)->s_sbh);
2803 } 2803 }
2804 } 2804 }
2805 } 2805 }
@@ -2815,26 +2815,26 @@ static int ext3_do_update_inode(handle_t *handle,
2815 cpu_to_le32(new_encode_dev(inode->i_rdev)); 2815 cpu_to_le32(new_encode_dev(inode->i_rdev));
2816 raw_inode->i_block[2] = 0; 2816 raw_inode->i_block[2] = 0;
2817 } 2817 }
2818 } else for (block = 0; block < EXT3_N_BLOCKS; block++) 2818 } else for (block = 0; block < EXT4_N_BLOCKS; block++)
2819 raw_inode->i_block[block] = ei->i_data[block]; 2819 raw_inode->i_block[block] = ei->i_data[block];
2820 2820
2821 if (ei->i_extra_isize) 2821 if (ei->i_extra_isize)
2822 raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize); 2822 raw_inode->i_extra_isize = cpu_to_le16(ei->i_extra_isize);
2823 2823
2824 BUFFER_TRACE(bh, "call ext3_journal_dirty_metadata"); 2824 BUFFER_TRACE(bh, "call ext4_journal_dirty_metadata");
2825 rc = ext3_journal_dirty_metadata(handle, bh); 2825 rc = ext4_journal_dirty_metadata(handle, bh);
2826 if (!err) 2826 if (!err)
2827 err = rc; 2827 err = rc;
2828 ei->i_state &= ~EXT3_STATE_NEW; 2828 ei->i_state &= ~EXT4_STATE_NEW;
2829 2829
2830out_brelse: 2830out_brelse:
2831 brelse (bh); 2831 brelse (bh);
2832 ext3_std_error(inode->i_sb, err); 2832 ext4_std_error(inode->i_sb, err);
2833 return err; 2833 return err;
2834} 2834}
2835 2835
2836/* 2836/*
2837 * ext3_write_inode() 2837 * ext4_write_inode()
2838 * 2838 *
2839 * We are called from a few places: 2839 * We are called from a few places:
2840 * 2840 *
@@ -2851,7 +2851,7 @@ out_brelse:
2851 * 2851 *
2852 * In all cases it is actually safe for us to return without doing anything, 2852 * In all cases it is actually safe for us to return without doing anything,
2853 * because the inode has been copied into a raw inode buffer in 2853 * because the inode has been copied into a raw inode buffer in
2854 * ext3_mark_inode_dirty(). This is a correctness thing for O_SYNC and for 2854 * ext4_mark_inode_dirty(). This is a correctness thing for O_SYNC and for
2855 * knfsd. 2855 * knfsd.
2856 * 2856 *
2857 * Note that we are absolutely dependent upon all inode dirtiers doing the 2857 * Note that we are absolutely dependent upon all inode dirtiers doing the
@@ -2868,12 +2868,12 @@ out_brelse:
2868 * `stuff()' is running, and the new i_size will be lost. Plus the inode 2868 * `stuff()' is running, and the new i_size will be lost. Plus the inode
2869 * will no longer be on the superblock's dirty inode list. 2869 * will no longer be on the superblock's dirty inode list.
2870 */ 2870 */
2871int ext3_write_inode(struct inode *inode, int wait) 2871int ext4_write_inode(struct inode *inode, int wait)
2872{ 2872{
2873 if (current->flags & PF_MEMALLOC) 2873 if (current->flags & PF_MEMALLOC)
2874 return 0; 2874 return 0;
2875 2875
2876 if (ext3_journal_current_handle()) { 2876 if (ext4_journal_current_handle()) {
2877 jbd_debug(0, "called recursively, non-PF_MEMALLOC!\n"); 2877 jbd_debug(0, "called recursively, non-PF_MEMALLOC!\n");
2878 dump_stack(); 2878 dump_stack();
2879 return -EIO; 2879 return -EIO;
@@ -2882,11 +2882,11 @@ int ext3_write_inode(struct inode *inode, int wait)
2882 if (!wait) 2882 if (!wait)
2883 return 0; 2883 return 0;
2884 2884
2885 return ext3_force_commit(inode->i_sb); 2885 return ext4_force_commit(inode->i_sb);
2886} 2886}
2887 2887
2888/* 2888/*
2889 * ext3_setattr() 2889 * ext4_setattr()
2890 * 2890 *
2891 * Called from notify_change. 2891 * Called from notify_change.
2892 * 2892 *
@@ -2902,7 +2902,7 @@ int ext3_write_inode(struct inode *inode, int wait)
2902 * 2902 *
2903 * Called with inode->sem down. 2903 * Called with inode->sem down.
2904 */ 2904 */
2905int ext3_setattr(struct dentry *dentry, struct iattr *attr) 2905int ext4_setattr(struct dentry *dentry, struct iattr *attr)
2906{ 2906{
2907 struct inode *inode = dentry->d_inode; 2907 struct inode *inode = dentry->d_inode;
2908 int error, rc = 0; 2908 int error, rc = 0;
@@ -2918,15 +2918,15 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
2918 2918
2919 /* (user+group)*(old+new) structure, inode write (sb, 2919 /* (user+group)*(old+new) structure, inode write (sb,
2920 * inode block, ? - but truncate inode update has it) */ 2920 * inode block, ? - but truncate inode update has it) */
2921 handle = ext3_journal_start(inode, 2*(EXT3_QUOTA_INIT_BLOCKS(inode->i_sb)+ 2921 handle = ext4_journal_start(inode, 2*(EXT4_QUOTA_INIT_BLOCKS(inode->i_sb)+
2922 EXT3_QUOTA_DEL_BLOCKS(inode->i_sb))+3); 2922 EXT4_QUOTA_DEL_BLOCKS(inode->i_sb))+3);
2923 if (IS_ERR(handle)) { 2923 if (IS_ERR(handle)) {
2924 error = PTR_ERR(handle); 2924 error = PTR_ERR(handle);
2925 goto err_out; 2925 goto err_out;
2926 } 2926 }
2927 error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0; 2927 error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
2928 if (error) { 2928 if (error) {
2929 ext3_journal_stop(handle); 2929 ext4_journal_stop(handle);
2930 return error; 2930 return error;
2931 } 2931 }
2932 /* Update corresponding info in inode so that everything is in 2932 /* Update corresponding info in inode so that everything is in
@@ -2935,41 +2935,41 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
2935 inode->i_uid = attr->ia_uid; 2935 inode->i_uid = attr->ia_uid;
2936 if (attr->ia_valid & ATTR_GID) 2936 if (attr->ia_valid & ATTR_GID)
2937 inode->i_gid = attr->ia_gid; 2937 inode->i_gid = attr->ia_gid;
2938 error = ext3_mark_inode_dirty(handle, inode); 2938 error = ext4_mark_inode_dirty(handle, inode);
2939 ext3_journal_stop(handle); 2939 ext4_journal_stop(handle);
2940 } 2940 }
2941 2941
2942 if (S_ISREG(inode->i_mode) && 2942 if (S_ISREG(inode->i_mode) &&
2943 attr->ia_valid & ATTR_SIZE && attr->ia_size < inode->i_size) { 2943 attr->ia_valid & ATTR_SIZE && attr->ia_size < inode->i_size) {
2944 handle_t *handle; 2944 handle_t *handle;
2945 2945
2946 handle = ext3_journal_start(inode, 3); 2946 handle = ext4_journal_start(inode, 3);
2947 if (IS_ERR(handle)) { 2947 if (IS_ERR(handle)) {
2948 error = PTR_ERR(handle); 2948 error = PTR_ERR(handle);
2949 goto err_out; 2949 goto err_out;
2950 } 2950 }
2951 2951
2952 error = ext3_orphan_add(handle, inode); 2952 error = ext4_orphan_add(handle, inode);
2953 EXT3_I(inode)->i_disksize = attr->ia_size; 2953 EXT4_I(inode)->i_disksize = attr->ia_size;
2954 rc = ext3_mark_inode_dirty(handle, inode); 2954 rc = ext4_mark_inode_dirty(handle, inode);
2955 if (!error) 2955 if (!error)
2956 error = rc; 2956 error = rc;
2957 ext3_journal_stop(handle); 2957 ext4_journal_stop(handle);
2958 } 2958 }
2959 2959
2960 rc = inode_setattr(inode, attr); 2960 rc = inode_setattr(inode, attr);
2961 2961
2962 /* If inode_setattr's call to ext3_truncate failed to get a 2962 /* If inode_setattr's call to ext4_truncate failed to get a
2963 * transaction handle at all, we need to clean up the in-core 2963 * transaction handle at all, we need to clean up the in-core
2964 * orphan list manually. */ 2964 * orphan list manually. */
2965 if (inode->i_nlink) 2965 if (inode->i_nlink)
2966 ext3_orphan_del(NULL, inode); 2966 ext4_orphan_del(NULL, inode);
2967 2967
2968 if (!rc && (ia_valid & ATTR_MODE)) 2968 if (!rc && (ia_valid & ATTR_MODE))
2969 rc = ext3_acl_chmod(inode); 2969 rc = ext4_acl_chmod(inode);
2970 2970
2971err_out: 2971err_out:
2972 ext3_std_error(inode->i_sb, error); 2972 ext4_std_error(inode->i_sb, error);
2973 if (!error) 2973 if (!error)
2974 error = rc; 2974 error = rc;
2975 return error; 2975 return error;
@@ -2988,9 +2988,9 @@ err_out:
2988 * N+5 group descriptor summary blocks 2988 * N+5 group descriptor summary blocks
2989 * 1 inode block 2989 * 1 inode block
2990 * 1 superblock. 2990 * 1 superblock.
2991 * 2 * EXT3_SINGLEDATA_TRANS_BLOCKS for the quote files 2991 * 2 * EXT4_SINGLEDATA_TRANS_BLOCKS for the quote files
2992 * 2992 *
2993 * 3 * (N + 5) + 2 + 2 * EXT3_SINGLEDATA_TRANS_BLOCKS 2993 * 3 * (N + 5) + 2 + 2 * EXT4_SINGLEDATA_TRANS_BLOCKS
2994 * 2994 *
2995 * With ordered or writeback data it's the same, less the N data blocks. 2995 * With ordered or writeback data it's the same, less the N data blocks.
2996 * 2996 *
@@ -3003,13 +3003,13 @@ err_out:
3003 * block and work out the exact number of indirects which are touched. Pah. 3003 * block and work out the exact number of indirects which are touched. Pah.
3004 */ 3004 */
3005 3005
3006static int ext3_writepage_trans_blocks(struct inode *inode) 3006static int ext4_writepage_trans_blocks(struct inode *inode)
3007{ 3007{
3008 int bpp = ext3_journal_blocks_per_page(inode); 3008 int bpp = ext4_journal_blocks_per_page(inode);
3009 int indirects = (EXT3_NDIR_BLOCKS % bpp) ? 5 : 3; 3009 int indirects = (EXT4_NDIR_BLOCKS % bpp) ? 5 : 3;
3010 int ret; 3010 int ret;
3011 3011
3012 if (ext3_should_journal_data(inode)) 3012 if (ext4_should_journal_data(inode))
3013 ret = 3 * (bpp + indirects) + 2; 3013 ret = 3 * (bpp + indirects) + 2;
3014 else 3014 else
3015 ret = 2 * (bpp + indirects) + 2; 3015 ret = 2 * (bpp + indirects) + 2;
@@ -3017,26 +3017,26 @@ static int ext3_writepage_trans_blocks(struct inode *inode)
3017#ifdef CONFIG_QUOTA 3017#ifdef CONFIG_QUOTA
3018 /* We know that structure was already allocated during DQUOT_INIT so 3018 /* We know that structure was already allocated during DQUOT_INIT so
3019 * we will be updating only the data blocks + inodes */ 3019 * we will be updating only the data blocks + inodes */
3020 ret += 2*EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb); 3020 ret += 2*EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
3021#endif 3021#endif
3022 3022
3023 return ret; 3023 return ret;
3024} 3024}
3025 3025
3026/* 3026/*
3027 * The caller must have previously called ext3_reserve_inode_write(). 3027 * The caller must have previously called ext4_reserve_inode_write().
3028 * Give this, we know that the caller already has write access to iloc->bh. 3028 * Give this, we know that the caller already has write access to iloc->bh.
3029 */ 3029 */
3030int ext3_mark_iloc_dirty(handle_t *handle, 3030int ext4_mark_iloc_dirty(handle_t *handle,
3031 struct inode *inode, struct ext3_iloc *iloc) 3031 struct inode *inode, struct ext4_iloc *iloc)
3032{ 3032{
3033 int err = 0; 3033 int err = 0;
3034 3034
3035 /* the do_update_inode consumes one bh->b_count */ 3035 /* the do_update_inode consumes one bh->b_count */
3036 get_bh(iloc->bh); 3036 get_bh(iloc->bh);
3037 3037
3038 /* ext3_do_update_inode() does journal_dirty_metadata */ 3038 /* ext4_do_update_inode() does journal_dirty_metadata */
3039 err = ext3_do_update_inode(handle, inode, iloc); 3039 err = ext4_do_update_inode(handle, inode, iloc);
3040 put_bh(iloc->bh); 3040 put_bh(iloc->bh);
3041 return err; 3041 return err;
3042} 3042}
@@ -3047,22 +3047,22 @@ int ext3_mark_iloc_dirty(handle_t *handle,
3047 */ 3047 */
3048 3048
3049int 3049int
3050ext3_reserve_inode_write(handle_t *handle, struct inode *inode, 3050ext4_reserve_inode_write(handle_t *handle, struct inode *inode,
3051 struct ext3_iloc *iloc) 3051 struct ext4_iloc *iloc)
3052{ 3052{
3053 int err = 0; 3053 int err = 0;
3054 if (handle) { 3054 if (handle) {
3055 err = ext3_get_inode_loc(inode, iloc); 3055 err = ext4_get_inode_loc(inode, iloc);
3056 if (!err) { 3056 if (!err) {
3057 BUFFER_TRACE(iloc->bh, "get_write_access"); 3057 BUFFER_TRACE(iloc->bh, "get_write_access");
3058 err = ext3_journal_get_write_access(handle, iloc->bh); 3058 err = ext4_journal_get_write_access(handle, iloc->bh);
3059 if (err) { 3059 if (err) {
3060 brelse(iloc->bh); 3060 brelse(iloc->bh);
3061 iloc->bh = NULL; 3061 iloc->bh = NULL;
3062 } 3062 }
3063 } 3063 }
3064 } 3064 }
3065 ext3_std_error(inode->i_sb, err); 3065 ext4_std_error(inode->i_sb, err);
3066 return err; 3066 return err;
3067} 3067}
3068 3068
@@ -3087,20 +3087,20 @@ ext3_reserve_inode_write(handle_t *handle, struct inode *inode,
3087 * to do a write_super() to free up some memory. It has the desired 3087 * to do a write_super() to free up some memory. It has the desired
3088 * effect. 3088 * effect.
3089 */ 3089 */
3090int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode) 3090int ext4_mark_inode_dirty(handle_t *handle, struct inode *inode)
3091{ 3091{
3092 struct ext3_iloc iloc; 3092 struct ext4_iloc iloc;
3093 int err; 3093 int err;
3094 3094
3095 might_sleep(); 3095 might_sleep();
3096 err = ext3_reserve_inode_write(handle, inode, &iloc); 3096 err = ext4_reserve_inode_write(handle, inode, &iloc);
3097 if (!err) 3097 if (!err)
3098 err = ext3_mark_iloc_dirty(handle, inode, &iloc); 3098 err = ext4_mark_iloc_dirty(handle, inode, &iloc);
3099 return err; 3099 return err;
3100} 3100}
3101 3101
3102/* 3102/*
3103 * ext3_dirty_inode() is called from __mark_inode_dirty() 3103 * ext4_dirty_inode() is called from __mark_inode_dirty()
3104 * 3104 *
3105 * We're really interested in the case where a file is being extended. 3105 * We're really interested in the case where a file is being extended.
3106 * i_size has been changed by generic_commit_write() and we thus need 3106 * i_size has been changed by generic_commit_write() and we thus need
@@ -3113,12 +3113,12 @@ int ext3_mark_inode_dirty(handle_t *handle, struct inode *inode)
3113 * so would cause a commit on atime updates, which we don't bother doing. 3113 * so would cause a commit on atime updates, which we don't bother doing.
3114 * We handle synchronous inodes at the highest possible level. 3114 * We handle synchronous inodes at the highest possible level.
3115 */ 3115 */
3116void ext3_dirty_inode(struct inode *inode) 3116void ext4_dirty_inode(struct inode *inode)
3117{ 3117{
3118 handle_t *current_handle = ext3_journal_current_handle(); 3118 handle_t *current_handle = ext4_journal_current_handle();
3119 handle_t *handle; 3119 handle_t *handle;
3120 3120
3121 handle = ext3_journal_start(inode, 2); 3121 handle = ext4_journal_start(inode, 2);
3122 if (IS_ERR(handle)) 3122 if (IS_ERR(handle))
3123 goto out; 3123 goto out;
3124 if (current_handle && 3124 if (current_handle &&
@@ -3129,9 +3129,9 @@ void ext3_dirty_inode(struct inode *inode)
3129 } else { 3129 } else {
3130 jbd_debug(5, "marking dirty. outer handle=%p\n", 3130 jbd_debug(5, "marking dirty. outer handle=%p\n",
3131 current_handle); 3131 current_handle);
3132 ext3_mark_inode_dirty(handle, inode); 3132 ext4_mark_inode_dirty(handle, inode);
3133 } 3133 }
3134 ext3_journal_stop(handle); 3134 ext4_journal_stop(handle);
3135out: 3135out:
3136 return; 3136 return;
3137} 3137}
@@ -3140,32 +3140,32 @@ out:
3140/* 3140/*
3141 * Bind an inode's backing buffer_head into this transaction, to prevent 3141 * Bind an inode's backing buffer_head into this transaction, to prevent
3142 * it from being flushed to disk early. Unlike 3142 * it from being flushed to disk early. Unlike
3143 * ext3_reserve_inode_write, this leaves behind no bh reference and 3143 * ext4_reserve_inode_write, this leaves behind no bh reference and
3144 * returns no iloc structure, so the caller needs to repeat the iloc 3144 * returns no iloc structure, so the caller needs to repeat the iloc
3145 * lookup to mark the inode dirty later. 3145 * lookup to mark the inode dirty later.
3146 */ 3146 */
3147static int ext3_pin_inode(handle_t *handle, struct inode *inode) 3147static int ext4_pin_inode(handle_t *handle, struct inode *inode)
3148{ 3148{
3149 struct ext3_iloc iloc; 3149 struct ext4_iloc iloc;
3150 3150
3151 int err = 0; 3151 int err = 0;
3152 if (handle) { 3152 if (handle) {
3153 err = ext3_get_inode_loc(inode, &iloc); 3153 err = ext4_get_inode_loc(inode, &iloc);
3154 if (!err) { 3154 if (!err) {
3155 BUFFER_TRACE(iloc.bh, "get_write_access"); 3155 BUFFER_TRACE(iloc.bh, "get_write_access");
3156 err = journal_get_write_access(handle, iloc.bh); 3156 err = journal_get_write_access(handle, iloc.bh);
3157 if (!err) 3157 if (!err)
3158 err = ext3_journal_dirty_metadata(handle, 3158 err = ext4_journal_dirty_metadata(handle,
3159 iloc.bh); 3159 iloc.bh);
3160 brelse(iloc.bh); 3160 brelse(iloc.bh);
3161 } 3161 }
3162 } 3162 }
3163 ext3_std_error(inode->i_sb, err); 3163 ext4_std_error(inode->i_sb, err);
3164 return err; 3164 return err;
3165} 3165}
3166#endif 3166#endif
3167 3167
3168int ext3_change_inode_journal_flag(struct inode *inode, int val) 3168int ext4_change_inode_journal_flag(struct inode *inode, int val)
3169{ 3169{
3170 journal_t *journal; 3170 journal_t *journal;
3171 handle_t *handle; 3171 handle_t *handle;
@@ -3181,7 +3181,7 @@ int ext3_change_inode_journal_flag(struct inode *inode, int val)
3181 * nobody is changing anything. 3181 * nobody is changing anything.
3182 */ 3182 */
3183 3183
3184 journal = EXT3_JOURNAL(inode); 3184 journal = EXT4_JOURNAL(inode);
3185 if (is_journal_aborted(journal) || IS_RDONLY(inode)) 3185 if (is_journal_aborted(journal) || IS_RDONLY(inode))
3186 return -EROFS; 3186 return -EROFS;
3187 3187
@@ -3197,23 +3197,23 @@ int ext3_change_inode_journal_flag(struct inode *inode, int val)
3197 */ 3197 */
3198 3198
3199 if (val) 3199 if (val)
3200 EXT3_I(inode)->i_flags |= EXT3_JOURNAL_DATA_FL; 3200 EXT4_I(inode)->i_flags |= EXT4_JOURNAL_DATA_FL;
3201 else 3201 else
3202 EXT3_I(inode)->i_flags &= ~EXT3_JOURNAL_DATA_FL; 3202 EXT4_I(inode)->i_flags &= ~EXT4_JOURNAL_DATA_FL;
3203 ext3_set_aops(inode); 3203 ext4_set_aops(inode);
3204 3204
3205 journal_unlock_updates(journal); 3205 journal_unlock_updates(journal);
3206 3206
3207 /* Finally we can mark the inode as dirty. */ 3207 /* Finally we can mark the inode as dirty. */
3208 3208
3209 handle = ext3_journal_start(inode, 1); 3209 handle = ext4_journal_start(inode, 1);
3210 if (IS_ERR(handle)) 3210 if (IS_ERR(handle))
3211 return PTR_ERR(handle); 3211 return PTR_ERR(handle);
3212 3212
3213 err = ext3_mark_inode_dirty(handle, inode); 3213 err = ext4_mark_inode_dirty(handle, inode);
3214 handle->h_sync = 1; 3214 handle->h_sync = 1;
3215 ext3_journal_stop(handle); 3215 ext4_journal_stop(handle);
3216 ext3_std_error(inode->i_sb, err); 3216 ext4_std_error(inode->i_sb, err);
3217 3217
3218 return err; 3218 return err;
3219} 3219}
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-08 05:44:58 -0500