From: Qu Wenruo <wqu@suse.com>
Date: Wed, 20 Mar 2019 06:27:40 +0000 (+0800)
Subject: btrfs: disk-io: Show the timing of corrupted tree block explicitly
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=75391f0d41197e54b61ada92ddeffc28bf028c8c;p=linux.git

btrfs: disk-io: Show the timing of corrupted tree block explicitly

Just add one extra line to show when the corruption is detected.
Currently only read time detection is possible.

The planned distinguish line would be:

  read time:
    <detailed report>
    block=XXXXX read time tree block corruption detected

  write time:
    <detailed report>
    block=XXXXX write time tree block corruption detected

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index fb9c9e0783afb..f4ef3a1a321b2 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -662,6 +662,10 @@ static int btree_readpage_end_io_hook(struct btrfs_io_bio *io_bio,
 
 	if (!ret)
 		set_extent_buffer_uptodate(eb);
+	else
+		btrfs_err(fs_info,
+			  "block=%llu read time tree block corruption detected",
+			  eb->start);
 err:
 	if (reads_done &&
 	    test_and_clear_bit(EXTENT_BUFFER_READAHEAD, &eb->bflags))