linux-ext4 - [PATCH RFC 6/8] btrfs: use super write guard in relocating_repair

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Message-Id: <20251104-work-guards-v1-6-5108ac78a171@kernel.org>
Date: Tue, 04 Nov 2025 13:12:35 +0100
From: Christian Brauner <brauner@...nel.org>
To: linux-fsdevel@...r.kernel.org
Cc: Alexander Viro <viro@...iv.linux.org.uk>, Jan Kara <jack@...e.cz>, 
 linux-btrfs@...r.kernel.org, linux-ext4@...r.kernel.org, 
 linux-xfs@...r.kernel.org, Christian Brauner <brauner@...nel.org>
Subject: [PATCH RFC 6/8] btrfs: use super write guard in
 relocating_repair_kthread()

Signed-off-by: Christian Brauner <brauner@...nel.org>
---
 fs/btrfs/volumes.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 4152b0a5537a..37b9daa14445 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -8178,7 +8178,8 @@ static int relocating_repair_kthread(void *data)
 	target = cache->start;
 	btrfs_put_block_group(cache);
 
-	sb_start_write(fs_info->sb);
+	guard(super_write)(fs_info->sb);
+
 	if (!btrfs_exclop_start(fs_info, BTRFS_EXCLOP_BALANCE)) {
 		btrfs_info(fs_info,
 			   "zoned: skip relocating block group %llu to repair: EBUSY",
@@ -8211,7 +8212,6 @@ static int relocating_repair_kthread(void *data)
 		btrfs_put_block_group(cache);
 	mutex_unlock(&fs_info->reclaim_bgs_lock);
 	btrfs_exclop_finish(fs_info);
-	sb_end_write(fs_info->sb);
 
 	return ret;
 }

-- 
2.47.3