mirrors
/
linux-stable
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
1
0
Fork 0
Code Issues Releases Wiki Activity

ext4: Use ext4_error_file() to print the pathname to the corrupted inode 

Where the file pointer is available, use ext4_error_file() instead of
ext4_error_inode().

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2011-01-10 12:10:55 -05:00
parent f9a62d090c
commit f7c21177af
4 changed files with 49 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
fs/ext4/dir.c
View File

@ -66,7 +66,7 @@ static unsigned char get_dtype(struct super_block *sb, int filetype)
* Note: this is the opposite of what ext2 and ext3 historically returned...
*/
int __ext4_check_dir_entry(const char *function, unsigned int line,
struct inode *dir,
struct inode *dir, struct file *filp,
struct ext4_dir_entry_2 *de,
struct buffer_head *bh,
unsigned int offset)
@ -90,12 +90,21 @@ int __ext4_check_dir_entry(const char *function, unsigned int line,
else
return 0;
ext4_error_inode(dir, function, line, bh->b_blocknr,
"bad entry in directory: %s - "
"offset=%u(%u), inode=%u, rec_len=%d, name_len=%d",
error_msg, (unsigned) (offset%bh->b_size), offset,
le32_to_cpu(de->inode),
rlen, de->name_len);
if (filp)
ext4_error_file(filp, function, line, bh ? bh->b_blocknr : 0,
"bad entry in directory: %s - offset=%u(%u), "
"inode=%u, rec_len=%d, name_len=%d",
error_msg, (unsigned) (offset%bh->b_size),
offset, le32_to_cpu(de->inode),
rlen, de->name_len);
else
ext4_error_inode(dir, function, line, bh ? bh->b_blocknr : 0,
"bad entry in directory: %s - offset=%u(%u), "
"inode=%u, rec_len=%d, name_len=%d",
error_msg, (unsigned) (offset%bh->b_size),
offset, le32_to_cpu(de->inode),
rlen, de->name_len);
return 1;
}
@ -158,8 +167,9 @@ static int ext4_readdir(struct file *filp,
*/
if (!bh) {
if (!dir_has_error) {
EXT4_ERROR_INODE(inode, "directory "
"contains a hole at offset %Lu",
EXT4_ERROR_FILE(filp, 0,
"directory contains a "
"hole at offset %llu",
(unsigned long long) filp->f_pos);
dir_has_error = 1;
}
@ -200,7 +210,7 @@ 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(inode, de,
if (ext4_check_dir_entry(inode, filp, de,
bh, offset)) {
/*
* On error, skip the f_pos to the next block

15
fs/ext4/ext4.h
View File

@ -62,8 +62,8 @@
#define EXT4_ERROR_INODE_BLOCK(inode, block, fmt, a...) \
ext4_error_inode((inode), __func__, __LINE__, (block), (fmt), ## a)
#define EXT4_ERROR_FILE(file, fmt, a...) \
ext4_error_file(__func__, __LINE__, (file), (fmt), ## a)
#define EXT4_ERROR_FILE(file, block, fmt, a...) \
ext4_error_file((file), __func__, __LINE__, (block), (fmt), ## a)
/* data type for block offset of block group */
typedef int ext4_grpblk_t;
@ -1640,11 +1640,12 @@ extern unsigned ext4_init_block_bitmap(struct super_block *sb,
/* dir.c */
extern int __ext4_check_dir_entry(const char *, unsigned int, struct inode *,
struct file *,
struct ext4_dir_entry_2 *,
struct buffer_head *, unsigned int);
#define ext4_check_dir_entry(dir, de, bh, offset) \
unlikely(__ext4_check_dir_entry(__func__, __LINE__, (dir), (de), \
(bh), (offset)))
#define ext4_check_dir_entry(dir, filp, de, bh, offset) \
unlikely(__ext4_check_dir_entry(__func__, __LINE__, (dir), (filp), \
(de), (bh), (offset)))
extern int ext4_htree_store_dirent(struct file *dir_file, __u32 hash,
__u32 minor_hash,
struct ext4_dir_entry_2 *dirent);
@ -1751,8 +1752,8 @@ extern void ext4_error_inode(struct inode *, const char *, unsigned int,
ext4_fsblk_t, const char *, ...)
__attribute__ ((format (printf, 5, 6)));
extern void ext4_error_file(struct file *, const char *, unsigned int,
const char *, ...)
__attribute__ ((format (printf, 4, 5)));
ext4_fsblk_t, const char *, ...)
__attribute__ ((format (printf, 5, 6)));
extern void __ext4_std_error(struct super_block *, const char *,
unsigned int, int);
extern void __ext4_abort(struct super_block *, const char *, unsigned int,

10
fs/ext4/namei.c
View File

@ -581,7 +581,7 @@ 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(dir, de, bh,
if (ext4_check_dir_entry(dir, NULL, 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. */
@ -820,7 +820,7 @@ 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(dir, de, bh, offset))
if (ext4_check_dir_entry(dir, NULL, de, bh, offset))
return -1;
*res_dir = de;
return 1;
@ -1269,7 +1269,7 @@ 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(dir, de, bh, offset))
if (ext4_check_dir_entry(dir, NULL, de, bh, offset))
return -EIO;
if (ext4_match(namelen, name, de))
return -EEXIST;
@ -1636,7 +1636,7 @@ 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(dir, de, bh, i))
if (ext4_check_dir_entry(dir, NULL, de, bh, i))
return -EIO;
if (de == de_del) {
BUFFER_TRACE(bh, "get_write_access");
@ -1919,7 +1919,7 @@ static int empty_dir(struct inode *inode)
}
de = (struct ext4_dir_entry_2 *) bh->b_data;
}
if (ext4_check_dir_entry(inode, de, bh, offset)) {
if (ext4_check_dir_entry(inode, NULL, de, bh, offset)) {
de = (struct ext4_dir_entry_2 *)(bh->b_data +
sb->s_blocksize);
offset = (offset | (sb->s_blocksize - 1)) + 1;

28
fs/ext4/super.c
View File

@ -406,28 +406,31 @@ void ext4_error_inode(struct inode *inode, const char *function,
const char *fmt, ...)
{
va_list args;
struct va_format vaf;
struct ext4_super_block *es = EXT4_SB(inode->i_sb)->s_es;
es->s_last_error_ino = cpu_to_le32(inode->i_ino);
es->s_last_error_block = cpu_to_le64(block);
save_error_info(inode->i_sb, function, line);
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: inode #%lu: ",
inode->i_sb->s_id, function, line, inode->i_ino);
if (block)
printk("block %llu: ", block);
printk("comm %s: ", current->comm);
vprintk(fmt, args);
printk("\n");
printk(KERN_CONT "block %llu: ", block);
printk(KERN_CONT "comm %s: %pV\n", current->comm, &vaf);
va_end(args);
ext4_handle_error(inode->i_sb);
}
void ext4_error_file(struct file *file, const char *function,
unsigned int line, const char *fmt, ...)
unsigned int line, ext4_fsblk_t block,
const char *fmt, ...)
{
va_list args;
struct va_format vaf;
struct ext4_super_block *es;
struct inode *inode = file->f_dentry->d_inode;
char pathname[80], *path;
@ -435,17 +438,18 @@ void ext4_error_file(struct file *file, const char *function,
es = EXT4_SB(inode->i_sb)->s_es;
es->s_last_error_ino = cpu_to_le32(inode->i_ino);
save_error_info(inode->i_sb, function, line);
va_start(args, fmt);
path = d_path(&(file->f_path), pathname, sizeof(pathname));
if (IS_ERR(path))
path = "(unknown)";
printk(KERN_CRIT
"EXT4-fs error (device %s): %s:%d: inode #%lu "
"(comm %s path %s): ",
inode->i_sb->s_id, function, line, inode->i_ino,
current->comm, path);
vprintk(fmt, args);
printk("\n");
"EXT4-fs error (device %s): %s:%d: inode #%lu: ",
inode->i_sb->s_id, function, line, inode->i_ino);
if (block)
printk(KERN_CONT "block %llu: ", block);
va_start(args, fmt);
vaf.fmt = fmt;
vaf.va = &args;
printk(KERN_CONT "comm %s: path %s: %pV\n", current->comm, path, &vaf);
va_end(args);
ext4_handle_error(inode->i_sb);