diff options
-rw-r--r-- | fs/ext2/dir.c | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c index 7442bdd1267a..b3dbd716cd3a 100644 --- a/fs/ext2/dir.c +++ b/fs/ext2/dir.c | |||
@@ -256,11 +256,10 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir) | |||
256 | unsigned long npages = dir_pages(inode); | 256 | unsigned long npages = dir_pages(inode); |
257 | unsigned chunk_mask = ~(ext2_chunk_size(inode)-1); | 257 | unsigned chunk_mask = ~(ext2_chunk_size(inode)-1); |
258 | unsigned char *types = NULL; | 258 | unsigned char *types = NULL; |
259 | int need_revalidate = (filp->f_version != inode->i_version); | 259 | int need_revalidate = filp->f_version != inode->i_version; |
260 | int ret; | ||
261 | 260 | ||
262 | if (pos > inode->i_size - EXT2_DIR_REC_LEN(1)) | 261 | if (pos > inode->i_size - EXT2_DIR_REC_LEN(1)) |
263 | goto success; | 262 | return 0; |
264 | 263 | ||
265 | if (EXT2_HAS_INCOMPAT_FEATURE(sb, EXT2_FEATURE_INCOMPAT_FILETYPE)) | 264 | if (EXT2_HAS_INCOMPAT_FEATURE(sb, EXT2_FEATURE_INCOMPAT_FILETYPE)) |
266 | types = ext2_filetype_table; | 265 | types = ext2_filetype_table; |
@@ -275,12 +274,15 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir) | |||
275 | "bad page in #%lu", | 274 | "bad page in #%lu", |
276 | inode->i_ino); | 275 | inode->i_ino); |
277 | filp->f_pos += PAGE_CACHE_SIZE - offset; | 276 | filp->f_pos += PAGE_CACHE_SIZE - offset; |
278 | ret = -EIO; | 277 | return -EIO; |
279 | goto done; | ||
280 | } | 278 | } |
281 | kaddr = page_address(page); | 279 | kaddr = page_address(page); |
282 | if (need_revalidate) { | 280 | if (unlikely(need_revalidate)) { |
283 | offset = ext2_validate_entry(kaddr, offset, chunk_mask); | 281 | if (offset) { |
282 | offset = ext2_validate_entry(kaddr, offset, chunk_mask); | ||
283 | filp->f_pos = (n<<PAGE_CACHE_SHIFT) + offset; | ||
284 | } | ||
285 | filp->f_version = inode->i_version; | ||
284 | need_revalidate = 0; | 286 | need_revalidate = 0; |
285 | } | 287 | } |
286 | de = (ext2_dirent *)(kaddr+offset); | 288 | de = (ext2_dirent *)(kaddr+offset); |
@@ -289,9 +291,8 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir) | |||
289 | if (de->rec_len == 0) { | 291 | if (de->rec_len == 0) { |
290 | ext2_error(sb, __FUNCTION__, | 292 | ext2_error(sb, __FUNCTION__, |
291 | "zero-length directory entry"); | 293 | "zero-length directory entry"); |
292 | ret = -EIO; | ||
293 | ext2_put_page(page); | 294 | ext2_put_page(page); |
294 | goto done; | 295 | return -EIO; |
295 | } | 296 | } |
296 | if (de->inode) { | 297 | if (de->inode) { |
297 | int over; | 298 | int over; |
@@ -306,19 +307,14 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir) | |||
306 | le32_to_cpu(de->inode), d_type); | 307 | le32_to_cpu(de->inode), d_type); |
307 | if (over) { | 308 | if (over) { |
308 | ext2_put_page(page); | 309 | ext2_put_page(page); |
309 | goto success; | 310 | return 0; |
310 | } | 311 | } |
311 | } | 312 | } |
312 | filp->f_pos += le16_to_cpu(de->rec_len); | 313 | filp->f_pos += le16_to_cpu(de->rec_len); |
313 | } | 314 | } |
314 | ext2_put_page(page); | 315 | ext2_put_page(page); |
315 | } | 316 | } |
316 | 317 | return 0; | |
317 | success: | ||
318 | ret = 0; | ||
319 | done: | ||
320 | filp->f_version = inode->i_version; | ||
321 | return ret; | ||
322 | } | 318 | } |
323 | 319 | ||
324 | /* | 320 | /* |