linux-kernel - [PATCH AUTOSEL 6.12 080/486] btrfs: zoned: exit btrfs_can_activate_zone if BTRFS_FS_NEED_ZONE

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Message-Id: <20250505223922.2682012-80-sashal@kernel.org>
Date: Mon,  5 May 2025 18:32:36 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Johannes Thumshirn <johannes.thumshirn@....com>,
	Naohiro Aota <naohiro.aota@....com>,
	David Sterba <dsterba@...e.com>,
	Sasha Levin <sashal@...nel.org>,
	clm@...com,
	josef@...icpanda.com,
	linux-btrfs@...r.kernel.org
Subject: [PATCH AUTOSEL 6.12 080/486] btrfs: zoned: exit btrfs_can_activate_zone if BTRFS_FS_NEED_ZONE_FINISH is set

From: Johannes Thumshirn <johannes.thumshirn@....com>

[ Upstream commit 26b38e28162ef4ceb1e0482299820fbbd7dbcd92 ]

If BTRFS_FS_NEED_ZONE_FINISH is already set for the whole filesystem, exit
early in btrfs_can_activate_zone(). There's no need to check if
BTRFS_FS_NEED_ZONE_FINISH needs to be set if it is already set.

Reviewed-by: Naohiro Aota <naohiro.aota@....com>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....com>
Reviewed-by: David Sterba <dsterba@...e.com>
Signed-off-by: David Sterba <dsterba@...e.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/btrfs/zoned.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 2603c9d60fd21..d1167aeb07354 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -2326,6 +2326,9 @@ bool btrfs_can_activate_zone(struct btrfs_fs_devices *fs_devices, u64 flags)
 	if (!btrfs_is_zoned(fs_info))
 		return true;
 
+	if (test_bit(BTRFS_FS_NEED_ZONE_FINISH, &fs_info->flags))
+		return false;
+
 	/* Check if there is a device with active zones left */
 	mutex_lock(&fs_info->chunk_mutex);
 	spin_lock(&fs_info->zone_active_bgs_lock);
-- 
2.39.5