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Diffstat (limited to 'fs/ext2/inode.c')
-rw-r--r--fs/ext2/inode.c37
1 files changed, 23 insertions, 14 deletions
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index b1ab32ab5a77..c62006805427 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -286,15 +286,12 @@ static unsigned long ext2_find_near(struct inode *inode, Indirect *ind)
286 * ext2_find_goal - find a prefered place for allocation. 286 * ext2_find_goal - find a prefered place for allocation.
287 * @inode: owner 287 * @inode: owner
288 * @block: block we want 288 * @block: block we want
289 * @chain: chain of indirect blocks
290 * @partial: pointer to the last triple within a chain 289 * @partial: pointer to the last triple within a chain
291 * 290 *
292 * Returns preferred place for a block (the goal). 291 * Returns preferred place for a block (the goal).
293 */ 292 */
294 293
295static inline int ext2_find_goal(struct inode *inode, 294static inline int ext2_find_goal(struct inode *inode, long block,
296 long block,
297 Indirect chain[4],
298 Indirect *partial) 295 Indirect *partial)
299{ 296{
300 struct ext2_block_alloc_info *block_i; 297 struct ext2_block_alloc_info *block_i;
@@ -569,7 +566,6 @@ static void ext2_splice_branch(struct inode *inode,
569 * 566 *
570 * `handle' can be NULL if create == 0. 567 * `handle' can be NULL if create == 0.
571 * 568 *
572 * The BKL may not be held on entry here. Be sure to take it early.
573 * return > 0, # of blocks mapped or allocated. 569 * return > 0, # of blocks mapped or allocated.
574 * return = 0, if plain lookup failed. 570 * return = 0, if plain lookup failed.
575 * return < 0, error case. 571 * return < 0, error case.
@@ -639,7 +635,7 @@ reread:
639 if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info)) 635 if (S_ISREG(inode->i_mode) && (!ei->i_block_alloc_info))
640 ext2_init_block_alloc_info(inode); 636 ext2_init_block_alloc_info(inode);
641 637
642 goal = ext2_find_goal(inode, iblock, chain, partial); 638 goal = ext2_find_goal(inode, iblock, partial);
643 639
644 /* the number of blocks need to allocate for [d,t]indirect blocks */ 640 /* the number of blocks need to allocate for [d,t]indirect blocks */
645 indirect_blks = (chain + depth) - partial - 1; 641 indirect_blks = (chain + depth) - partial - 1;
@@ -1185,22 +1181,33 @@ void ext2_get_inode_flags(struct ext2_inode_info *ei)
1185 ei->i_flags |= EXT2_DIRSYNC_FL; 1181 ei->i_flags |= EXT2_DIRSYNC_FL;
1186} 1182}
1187 1183
1188void ext2_read_inode (struct inode * inode) 1184struct inode *ext2_iget (struct super_block *sb, unsigned long ino)
1189{ 1185{
1190 struct ext2_inode_info *ei = EXT2_I(inode); 1186 struct ext2_inode_info *ei;
1191 ino_t ino = inode->i_ino;
1192 struct buffer_head * bh; 1187 struct buffer_head * bh;
1193 struct ext2_inode * raw_inode = ext2_get_inode(inode->i_sb, ino, &bh); 1188 struct ext2_inode *raw_inode;
1189 struct inode *inode;
1190 long ret = -EIO;
1194 int n; 1191 int n;
1195 1192
1193 inode = iget_locked(sb, ino);
1194 if (!inode)
1195 return ERR_PTR(-ENOMEM);
1196 if (!(inode->i_state & I_NEW))
1197 return inode;
1198
1199 ei = EXT2_I(inode);
1196#ifdef CONFIG_EXT2_FS_POSIX_ACL 1200#ifdef CONFIG_EXT2_FS_POSIX_ACL
1197 ei->i_acl = EXT2_ACL_NOT_CACHED; 1201 ei->i_acl = EXT2_ACL_NOT_CACHED;
1198 ei->i_default_acl = EXT2_ACL_NOT_CACHED; 1202 ei->i_default_acl = EXT2_ACL_NOT_CACHED;
1199#endif 1203#endif
1200 ei->i_block_alloc_info = NULL; 1204 ei->i_block_alloc_info = NULL;
1201 1205
1202 if (IS_ERR(raw_inode)) 1206 raw_inode = ext2_get_inode(inode->i_sb, ino, &bh);
1207 if (IS_ERR(raw_inode)) {
1208 ret = PTR_ERR(raw_inode);
1203 goto bad_inode; 1209 goto bad_inode;
1210 }
1204 1211
1205 inode->i_mode = le16_to_cpu(raw_inode->i_mode); 1212 inode->i_mode = le16_to_cpu(raw_inode->i_mode);
1206 inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low); 1213 inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
@@ -1224,6 +1231,7 @@ void ext2_read_inode (struct inode * inode)
1224 if (inode->i_nlink == 0 && (inode->i_mode == 0 || ei->i_dtime)) { 1231 if (inode->i_nlink == 0 && (inode->i_mode == 0 || ei->i_dtime)) {
1225 /* this inode is deleted */ 1232 /* this inode is deleted */
1226 brelse (bh); 1233 brelse (bh);
1234 ret = -ESTALE;
1227 goto bad_inode; 1235 goto bad_inode;
1228 } 1236 }
1229 inode->i_blocks = le32_to_cpu(raw_inode->i_blocks); 1237 inode->i_blocks = le32_to_cpu(raw_inode->i_blocks);
@@ -1290,11 +1298,12 @@ void ext2_read_inode (struct inode * inode)
1290 } 1298 }
1291 brelse (bh); 1299 brelse (bh);
1292 ext2_set_inode_flags(inode); 1300 ext2_set_inode_flags(inode);
1293 return; 1301 unlock_new_inode(inode);
1302 return inode;
1294 1303
1295bad_inode: 1304bad_inode:
1296 make_bad_inode(inode); 1305 iget_failed(inode);
1297 return; 1306 return ERR_PTR(ret);
1298} 1307}
1299 1308
1300static int ext2_update_inode(struct inode * inode, int do_sync) 1309static int ext2_update_inode(struct inode * inode, int do_sync)