linux-kernel - [PATCH 5.12 043/700] btrfs: zoned: print message when zone sanity check type fails

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Message-Id: <20210712060930.801913962@linuxfoundation.org>
Date:   Mon, 12 Jul 2021 08:02:06 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Naohiro Aota <naohiro.aota@....com>,
        David Sterba <dsterba@...e.com>
Subject: [PATCH 5.12 043/700] btrfs: zoned: print message when zone sanity check type fails

From: Naohiro Aota <naohiro.aota@....com>

commit 47cdfb5e1dd60422ec2cbc53b667f73ff9a411dc upstream.

This extends patch 784daf2b9628 ("btrfs: zoned: sanity check zone
type"), the message was supposed to be there but was lost during merge.
We want to make the error noticeable so add it.

Fixes: 784daf2b9628 ("btrfs: zoned: sanity check zone type")
CC: stable@...r.kernel.org # 5.12+
Signed-off-by: Naohiro Aota <naohiro.aota@....com>
Reviewed-by: David Sterba <dsterba@...e.com>
Signed-off-by: David Sterba <dsterba@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/btrfs/zoned.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -1140,6 +1140,10 @@ int btrfs_load_block_group_zone_info(str
 		}
 
 		if (zone.type == BLK_ZONE_TYPE_CONVENTIONAL) {
+			btrfs_err_in_rcu(fs_info,
+	"zoned: unexpected conventional zone %llu on device %s (devid %llu)",
+				zone.start << SECTOR_SHIFT,
+				rcu_str_deref(device->name), device->devid);
 			ret = -EIO;
 			goto out;
 		}