diff options
| -rw-r--r-- | fs/ext2/dir.c | 60 |
1 files changed, 35 insertions, 25 deletions
diff --git a/fs/ext2/dir.c b/fs/ext2/dir.c index a78c6b4..11a49ce 100644 --- a/fs/ext2/dir.c +++ b/fs/ext2/dir.c @@ -103,7 +103,7 @@ static int ext2_commit_chunk(struct page *page, loff_t pos, unsigned len) return err; } -static void ext2_check_page(struct page *page) +static void ext2_check_page(struct page *page, int quiet) { struct inode *dir = page->mapping->host; struct super_block *sb = dir->i_sb; @@ -146,10 +146,10 @@ out: /* Too bad, we had an error */ Ebadsize: - ext2_error(sb, "ext2_check_page", - "size of directory #%lu is not a multiple of chunk size", - dir->i_ino - ); + if (!quiet) + ext2_error(sb, __func__, + "size of directory #%lu is not a multiple " + "of chunk size", dir->i_ino); goto fail; Eshort: error = "rec_len is smaller than minimal"; @@ -166,32 +166,36 @@ Espan: Einumber: error = "inode out of bounds"; bad_entry: - ext2_error (sb, "ext2_check_page", "bad entry in directory #%lu: %s - " - "offset=%lu, inode=%lu, rec_len=%d, name_len=%d", - dir->i_ino, error, (page->index<<PAGE_CACHE_SHIFT)+offs, - (unsigned long) le32_to_cpu(p->inode), - rec_len, p->name_len); + if (!quiet) + ext2_error(sb, __func__, "bad entry in directory #%lu: : %s - " + "offset=%lu, inode=%lu, rec_len=%d, name_len=%d", + dir->i_ino, error, (page->index<<PAGE_CACHE_SHIFT)+offs, + (unsigned long) le32_to_cpu(p->inode), + rec_len, p->name_len); goto fail; Eend: - p = (ext2_dirent *)(kaddr + offs); - ext2_error (sb, "ext2_check_page", - "entry in directory #%lu spans the page boundary" - "offset=%lu, inode=%lu", - dir->i_ino, (page->index<<PAGE_CACHE_SHIFT)+offs, - (unsigned long) le32_to_cpu(p->inode)); + if (!quiet) { + p = (ext2_dirent *)(kaddr + offs); + ext2_error(sb, "ext2_check_page", + "entry in directory #%lu spans the page boundary" + "offset=%lu, inode=%lu", + dir->i_ino, (page->index<<PAGE_CACHE_SHIFT)+offs, + (unsigned long) le32_to_cpu(p->inode)); + } fail: SetPageChecked(page); SetPageError(page); } -static struct page * ext2_get_page(struct inode *dir, unsigned long n) +static struct page * ext2_get_page(struct inode *dir, unsigned long n, + int quiet) { struct address_space *mapping = dir->i_mapping; struct page *page = read_mapping_page(mapping, n, NULL); if (!IS_ERR(page)) { kmap(page); if (!PageChecked(page)) - ext2_check_page(page); + ext2_check_page(page, quiet); if (PageError(page)) goto fail; } @@ -292,7 +296,7 @@ ext2_readdir (struct file * filp, void * dirent, filldir_t filldir) for ( ; n < npages; n++, offset = 0) { char *kaddr, *limit; ext2_dirent *de; - struct page *page = ext2_get_page(inode, n); + struct page *page = ext2_get_page(inode, n, 0); if (IS_ERR(page)) { ext2_error(sb, __func__, @@ -361,6 +365,7 @@ struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir, struct page *page = NULL; struct ext2_inode_info *ei = EXT2_I(dir); ext2_dirent * de; + int dir_has_error = 0; if (npages == 0) goto out; @@ -374,7 +379,7 @@ struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir, n = start; do { char *kaddr; - page = ext2_get_page(dir, n); + page = ext2_get_page(dir, n, dir_has_error); if (!IS_ERR(page)) { kaddr = page_address(page); de = (ext2_dirent *) kaddr; @@ -391,7 +396,9 @@ struct ext2_dir_entry_2 * ext2_find_entry (struct inode * dir, de = ext2_next_entry(de); } ext2_put_page(page); - } + } else + dir_has_error = 1; + if (++n >= npages) n = 0; /* next page is past the blocks we've got */ @@ -414,7 +421,7 @@ found: struct ext2_dir_entry_2 * ext2_dotdot (struct inode *dir, struct page **p) { - struct page *page = ext2_get_page(dir, 0); + struct page *page = ext2_get_page(dir, 0, 0); ext2_dirent *de = NULL; if (!IS_ERR(page)) { @@ -487,7 +494,7 @@ int ext2_add_link (struct dentry *dentry, struct inode *inode) for (n = 0; n <= npages; n++) { char *dir_end; - page = ext2_get_page(dir, n); + page = ext2_get_page(dir, n, 0); err = PTR_ERR(page); if (IS_ERR(page)) goto out; @@ -655,14 +662,17 @@ int ext2_empty_dir (struct inode * inode) { struct page *page = NULL; unsigned long i, npages = dir_pages(inode); + int dir_has_error = 0; for (i = 0; i < npages; i++) { char *kaddr; ext2_dirent * de; - page = ext2_get_page(inode, i); + page = ext2_get_page(inode, i, dir_has_error); - if (IS_ERR(page)) + if (IS_ERR(page)) { + dir_has_error = 1; continue; + } kaddr = page_address(page); de = (ext2_dirent *)kaddr; |
