diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/ext4/dir.c | 11 | ||||
| -rw-r--r-- | fs/ext4/ext4.h | 8 | ||||
| -rw-r--r-- | fs/ext4/namei.c | 14 |
3 files changed, 17 insertions, 16 deletions
diff --git a/fs/ext4/dir.c b/fs/ext4/dir.c index 2965c39d418..af581f08fe3 100644 --- a/fs/ext4/dir.c +++ b/fs/ext4/dir.c @@ -61,10 +61,11 @@ static unsigned char get_dtype(struct super_block *sb, int filetype) } -int ext4_check_dir_entry(const char *function, struct inode *dir, - struct ext4_dir_entry_2 *de, - struct buffer_head *bh, - unsigned int offset) +int __ext4_check_dir_entry(const char *function, unsigned int line, + struct inode *dir, + struct ext4_dir_entry_2 *de, + struct buffer_head *bh, + unsigned int offset) { const char *error_msg = NULL; const int rlen = ext4_rec_len_from_disk(de->rec_len, @@ -194,7 +195,7 @@ revalidate: while (!error && filp->f_pos < inode->i_size && offset < sb->s_blocksize) { de = (struct ext4_dir_entry_2 *) (bh->b_data + offset); - if (!ext4_check_dir_entry("ext4_readdir", inode, de, + if (!ext4_check_dir_entry(inode, de, bh, offset)) { /* * On error, skip the f_pos to the next block diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 5a41881cafc..73465b26976 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1515,9 +1515,11 @@ extern unsigned ext4_init_block_bitmap(struct super_block *sb, ext4_init_block_bitmap(sb, NULL, group, desc) /* dir.c */ -extern int ext4_check_dir_entry(const char *, struct inode *, - struct ext4_dir_entry_2 *, - struct buffer_head *, unsigned int); +extern int __ext4_check_dir_entry(const char *, unsigned int, struct inode *, + struct ext4_dir_entry_2 *, + struct buffer_head *, unsigned int); +#define ext4_check_dir_entry(dir, de, bh, offset) \ + __ext4_check_dir_entry(__func__, __LINE__, (dir), (de), (bh), (offset)) extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash, __u32 minor_hash, struct ext4_dir_entry_2 *dirent); diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c index 5a61f77e7d7..ea8b59d9621 100644 --- a/fs/ext4/namei.c +++ b/fs/ext4/namei.c @@ -605,7 +605,7 @@ static int htree_dirblock_to_tree(struct file *dir_file, dir->i_sb->s_blocksize - EXT4_DIR_REC_LEN(0)); for (; de < top; de = ext4_next_entry(de, dir->i_sb->s_blocksize)) { - if (!ext4_check_dir_entry("htree_dirblock_to_tree", dir, de, bh, + if (!ext4_check_dir_entry(dir, de, bh, (block<<EXT4_BLOCK_SIZE_BITS(dir->i_sb)) +((char *)de - bh->b_data))) { /* On error, skip the f_pos to the next block. */ @@ -844,8 +844,7 @@ static inline int search_dirblock(struct buffer_head *bh, if ((char *) de + namelen <= dlimit && ext4_match (namelen, name, de)) { /* found a match - just to be sure, do a full check */ - if (!ext4_check_dir_entry("ext4_find_entry", - dir, de, bh, offset)) + if (!ext4_check_dir_entry(dir, de, bh, offset)) return -1; *res_dir = de; return 1; @@ -1019,7 +1018,7 @@ static struct buffer_head * ext4_dx_find_entry(struct inode *dir, const struct q int off = (block << EXT4_BLOCK_SIZE_BITS(sb)) + ((char *) de - bh->b_data); - if (!ext4_check_dir_entry(__func__, dir, de, bh, off)) { + if (!ext4_check_dir_entry(dir, de, bh, off)) { brelse(bh); *err = ERR_BAD_DX_DIR; goto errout; @@ -1303,8 +1302,7 @@ static int add_dirent_to_buf(handle_t *handle, struct dentry *dentry, de = (struct ext4_dir_entry_2 *)bh->b_data; top = bh->b_data + blocksize - reclen; while ((char *) de <= top) { - if (!ext4_check_dir_entry("ext4_add_entry", dir, de, - bh, offset)) + if (!ext4_check_dir_entry(dir, de, bh, offset)) return -EIO; if (ext4_match(namelen, name, de)) return -EEXIST; @@ -1671,7 +1669,7 @@ static int ext4_delete_entry(handle_t *handle, pde = NULL; de = (struct ext4_dir_entry_2 *) bh->b_data; while (i < bh->b_size) { - if (!ext4_check_dir_entry("ext4_delete_entry", dir, de, bh, i)) + if (!ext4_check_dir_entry(dir, de, bh, i)) return -EIO; if (de == de_del) { BUFFER_TRACE(bh, "get_write_access"); @@ -1954,7 +1952,7 @@ static int empty_dir(struct inode *inode) } de = (struct ext4_dir_entry_2 *) bh->b_data; } - if (!ext4_check_dir_entry("empty_dir", inode, de, bh, offset)) { + if (!ext4_check_dir_entry(inode, de, bh, offset)) { de = (struct ext4_dir_entry_2 *)(bh->b_data + sb->s_blocksize); offset = (offset | (sb->s_blocksize - 1)) + 1; |