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Btrfs: print btrfs specific info for some fatal error cases

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Marc argued that if there are several btrfs filesystems mounted,
while users even don't know which filesystem hit the corrupted
errors something like generation verification failure.

Since @extent_buffer structure has a member @fs_info, let's output
btrfs device info.

Reported-by: Marc MERLIN <marc@merlins.org>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Wang Shilong 2014-07-04 17:59:06 +08:00 committed by Chris Mason
parent d20983b40e
commit 29549aec76
1 changed files with 7 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
fs/btrfs/disk-io.c
View file

@ -348,9 +348,9 @@ static int verify_parent_transid(struct extent_io_tree *io_tree,
ret = 0;
goto out;
}
printk_ratelimited("parent transid verify failed on %llu wanted %llu "
"found %llu\n",
eb->start, parent_transid, btrfs_header_generation(eb));
printk_ratelimited(KERN_INFO "BTRFS (device %s): parent transid verify failed on %llu wanted %llu found %llu\n",
eb->fs_info->sb->s_id, eb->start,
parent_transid, btrfs_header_generation(eb));
ret = 1;
/*
@ -614,15 +614,15 @@ static int btree_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
found_start = btrfs_header_bytenr(eb);
if (found_start != eb->start) {
printk_ratelimited(KERN_INFO "BTRFS: bad tree block start "
printk_ratelimited(KERN_INFO "BTRFS (device %s): bad tree block start "
"%llu %llu\n",
found_start, eb->start);
eb->fs_info->sb->s_id, found_start, eb->start);
ret = -EIO;
goto err;
}
if (check_tree_block_fsid(root, eb)) {
printk_ratelimited(KERN_INFO "BTRFS: bad fsid on block %llu\n",
eb->start);
printk_ratelimited(KERN_INFO "BTRFS (device %s): bad fsid on block %llu\n",
eb->fs_info->sb->s_id, eb->start);
ret = -EIO;
goto err;
}