linux-kernel - [PATCH 5.17 028/140] btrfs: sysfs: export the balance paused state of exclusive operation

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Message-Id: <20220510130742.417556860@linuxfoundation.org>
Date:   Tue, 10 May 2022 15:06:58 +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, David Sterba <dsterba@...e.com>
Subject: [PATCH 5.17 028/140] btrfs: sysfs: export the balance paused state of exclusive operation

From: David Sterba <dsterba@...e.com>

commit 3e1ad196385c65c1454aceab1226d9a4baca27d5 upstream.

The new state allowing device addition with paused balance is not
exported to user space so it can't recognize it and actually start the
operation.

Fixes: efc0e69c2fea ("btrfs: introduce exclusive operation BALANCE_PAUSED state")
CC: stable@...r.kernel.org # 5.17
Signed-off-by: David Sterba <dsterba@...e.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 fs/btrfs/sysfs.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/fs/btrfs/sysfs.c
+++ b/fs/btrfs/sysfs.c
@@ -919,6 +919,9 @@ static ssize_t btrfs_exclusive_operation
 		case BTRFS_EXCLOP_BALANCE:
 			str = "balance\n";
 			break;
+		case BTRFS_EXCLOP_BALANCE_PAUSED:
+			str = "balance paused\n";
+			break;
 		case BTRFS_EXCLOP_DEV_ADD:
 			str = "device add\n";
 			break;