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ext4: print the block number of invalid extent tree blocks 

When we find an invalid extent tree block, report the block number of
the bad block for debugging purposes.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
This commit is contained in:
Theodore Ts'o 2013-08-16 21:21:41 -04:00
parent 7d7ea89e75
commit c349179b48
1 changed files with 12 additions and 12 deletions
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24
fs/ext4/extents.c
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@ -407,7 +407,7 @@ static int ext4_valid_extent_entries(struct inode *inode,
static int __ext4_ext_check(const char *function, unsigned int line,
struct inode *inode, struct ext4_extent_header *eh,
int depth)
int depth, ext4_fsblk_t pblk)
{
const char *error_msg;
int max = 0;
@ -447,21 +447,21 @@ static int __ext4_ext_check(const char *function, unsigned int line,
corrupted:
ext4_error_inode(inode, function, line, 0,
"bad header/extent: %s - magic %x, "
"entries %u, max %u(%u), depth %u(%u)",
error_msg, le16_to_cpu(eh->eh_magic),
le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max),
max, le16_to_cpu(eh->eh_depth), depth);
"pblk %llu bad header/extent: %s - magic %x, "
"entries %u, max %u(%u), depth %u(%u)",
(unsigned long long) pblk, error_msg,
le16_to_cpu(eh->eh_magic),
le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max),
max, le16_to_cpu(eh->eh_depth), depth);
return -EIO;
}
#define ext4_ext_check(inode, eh, depth) \
__ext4_ext_check(__func__, __LINE__, inode, eh, depth)
#define ext4_ext_check(inode, eh, depth, pblk) \
__ext4_ext_check(__func__, __LINE__, (inode), (eh), (depth), (pblk))
int ext4_ext_check_inode(struct inode *inode)
{
return ext4_ext_check(inode, ext_inode_hdr(inode), ext_depth(inode));
return ext4_ext_check(inode, ext_inode_hdr(inode), ext_depth(inode), 0);
}
static struct buffer_head *
@ -484,7 +484,7 @@ __read_extent_tree_block(const char *function, unsigned int line,
if (buffer_verified(bh))
return bh;
err = __ext4_ext_check(function, line, inode,
ext_block_hdr(bh), depth);
ext_block_hdr(bh), depth, pblk);
if (err)
goto errout;
set_buffer_verified(bh);
@ -2775,7 +2775,7 @@ again:
path[0].p_hdr = ext_inode_hdr(inode);
i = 0;
if (ext4_ext_check(inode, path[0].p_hdr, depth)) {
if (ext4_ext_check(inode, path[0].p_hdr, depth, 0)) {
err = -EIO;
goto out;
}