[PATCH] btrfs: Add more details while checking tree block

[Su Yue]

For easier debug, print eb->start if level is invalid.
Also make print clear if bytenr found is not expected.

Signed-off-by: Su Yue <suy.f...@cn.fujitsu.com>
---
 fs/btrfs/disk-io.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index c3504b4d281b..a90dab84f41b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -615,8 +615,8 @@ static int btree_readpage_end_io_hook(struct btrfs_io_bio 
*io_bio,
 
        found_start = btrfs_header_bytenr(eb);
        if (found_start != eb->start) {
-               btrfs_err_rl(fs_info, "bad tree block start %llu %llu",
-                            found_start, eb->start);
+               btrfs_err_rl(fs_info, "bad tree block start want %llu have 
%llu",
+                            eb->start, found_start);
                ret = -EIO;
                goto err;
        }
@@ -628,8 +628,8 @@ static int btree_readpage_end_io_hook(struct btrfs_io_bio 
*io_bio,
        }
        found_level = btrfs_header_level(eb);
        if (found_level >= BTRFS_MAX_LEVEL) {
-               btrfs_err(fs_info, "bad tree block level %d",
-                         (int)btrfs_header_level(eb));
+               btrfs_err(fs_info, "bad tree block level %d on %llu",
+                         (int)btrfs_header_level(eb), eb->start);
                ret = -EIO;
                goto err;
        }
-- 
2.17.1



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