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ext4: call out CRC and corruption errors with specific error codes

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Instead of overloading EIO for CRC errors and corrupt structures,
return the same error codes that XFS returns for the same issues.

Signed-off-by: Darrick J. Wong <[email protected]>
Signed-off-by: Theodore Ts'o <[email protected]>
This commit is contained in:
Darrick J. Wong 2015-10-17 16:16:04 -04:00 • committed by Theodore Ts'o
commit 6a797d2737
16 changed files with 107 additions and 88 deletions
Download patch file Download diff file Expand all files Collapse all files

3
fs/jbd2/journal.c
View file

@ -1558,6 +1558,7 @@ static int journal_get_superblock(journal_t *journal)
/* Check superblock checksum */
if (!jbd2_superblock_csum_verify(journal, sb)) {
printk(KERN_ERR "JBD2: journal checksum error\n");
err = -EFSBADCRC;
goto out;
}
@ -1649,7 +1650,7 @@ int jbd2_journal_load(journal_t *journal)
printk(KERN_ERR "JBD2: journal transaction %u on %s "
"is corrupt.\n", journal->j_failed_commit,
journal->j_devname);
return -EIO;
return -EFSCORRUPTED;
}
/* OK, we've finished with the dynamic journal bits:

8
fs/jbd2/recovery.c
View file

@ -140,7 +140,7 @@ static int jread(struct buffer_head **bhp, journal_t *journal,
if (offset >= journal->j_maxlen) {
printk(KERN_ERR "JBD2: corrupted journal superblock\n");
return -EIO;
return -EFSCORRUPTED;
}
err = jbd2_journal_bmap(journal, offset, &blocknr);
@ -527,7 +527,7 @@ static int do_one_pass(journal_t *journal,
printk(KERN_ERR "JBD2: Invalid checksum "
"recovering block %lu in log\n",
next_log_block);
err = -EIO;
err = -EFSBADCRC;
brelse(bh);
goto failed;
}
@ -602,7 +602,7 @@ static int do_one_pass(journal_t *journal,
journal, tag, obh->b_data,
be32_to_cpu(tmp->h_sequence))) {
brelse(obh);
success = -EIO;
success = -EFSBADCRC;
printk(KERN_ERR "JBD2: Invalid "
"checksum recovering "
"block %llu in log\n",
@ -851,7 +851,7 @@ static int scan_revoke_records(journal_t *journal, struct buffer_head *bh,
rcount = be32_to_cpu(header->r_count);
if (!jbd2_revoke_block_csum_verify(journal, header))
return -EINVAL;
return -EFSBADCRC;
if (jbd2_journal_has_csum_v2or3(journal))
csum_size = sizeof(struct jbd2_journal_revoke_tail);