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ext4: Save error information to the superblock for analysis

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Save number of file system errors, and the time function name, line
number, block number, and inode number of the first and most recent
errors reported on the file system in the superblock.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o
2010-07-27 11:56:03 -04:00
parent c398eda0e4
commit 1c13d5c087
5 changed files with 90 additions and 22 deletions
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5
fs/ext4/ext4_jbd2.c
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@ -134,6 +134,11 @@ int __ext4_handle_dirty_metadata(const char *where, unsigned int line,
if (inode && inode_needs_sync(inode)) {
sync_dirty_buffer(bh);
if (buffer_req(bh) && !buffer_uptodate(bh)) {
struct ext4_super_block *es;
es = EXT4_SB(inode->i_sb)->s_es;
es->s_last_error_block =
cpu_to_le64(bh->b_blocknr);
ext4_error_inode(inode, where, line,
bh->b_blocknr,
"IO error syncing itable block");