This is a note to let you know that I've just added the patch titled
btrfs: add info when mount fails due to stale replace target
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
btrfs-add-info-when-mount-fails-due-to-stale-replace-target.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f2c3bec215694fb8bc0ef5010f2a758d1906fc2d Mon Sep 17 00:00:00 2001
From: Anand Jain <anand.jain@xxxxxxxxxx>
Date: Fri, 12 Aug 2022 18:32:19 +0800
Subject: btrfs: add info when mount fails due to stale replace target
From: Anand Jain <anand.jain@xxxxxxxxxx>
commit f2c3bec215694fb8bc0ef5010f2a758d1906fc2d upstream.
If the replace target device reappears after the suspended replace is
cancelled, it blocks the mount operation as it can't find the matching
replace-item in the metadata. As shown below,
BTRFS error (device sda5): replace devid present without an active replace item
To overcome this situation, the user can run the command
btrfs device scan --forget <replace target device>
and try the mount command again. And also, to avoid repeating the issue,
superblock on the devid=0 must be wiped.
wipefs -a device-path-to-devid=0.
This patch adds some info when this situation occurs.
Reported-by: Samuel Greiner <samuel@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/linux-btrfs/b4f62b10-b295-26ea-71f9-9a5c9299d42c@xxxxxxxxxxxxx/T/
CC: stable@xxxxxxxxxxxxxxx # 5.0+
Signed-off-by: Anand Jain <anand.jain@xxxxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/dev-replace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -125,7 +125,7 @@ no_valid_dev_replace_entry_found:
if (btrfs_find_device(fs_info->fs_devices,
BTRFS_DEV_REPLACE_DEVID, NULL, NULL, false)) {
btrfs_err(fs_info,
- "replace devid present without an active replace item");
+"replace without active item, run 'device scan --forget' on the target device");
ret = -EUCLEAN;
} else {
dev_replace->srcdev = NULL;
Patches currently in stable-queue which might be from anand.jain@xxxxxxxxxx are
queue-5.4/btrfs-replace-drop-assert-for-suspended-replace.patch
queue-5.4/btrfs-add-info-when-mount-fails-due-to-stale-replace-target.patch
