Btrfs: print btrfs specific info for some fatal error cases
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>
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 508bbee..d14847d 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -348,9 +348,9 @@
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 @@
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;
}