linux-kernel - [PATCH] btrfs: zoned: exit btrfs_can_activate_zone if BTRFS_FS_NEED_ZONE

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Message-ID: <f811034c9494b256f50a0675297f072a6b65076d.1739368972.git.jth@kernel.org>
Date: Wed, 12 Feb 2025 15:05:00 +0100
From: Johannes Thumshirn <jth@...nel.org>
To: linux-btrfs@...r.kernel.org
Cc: Naohiro Aota <naohiro.aota@....com>,
	Johannes Thumshirn <johannes.thumshirn@....com>,
	Chris Mason <clm@...com>,
	Josef Bacik <josef@...icpanda.com>,
	David Sterba <dsterba@...e.com>,
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH] btrfs: zoned: exit btrfs_can_activate_zone if BTRFS_FS_NEED_ZONE_FINISH is set

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

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.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@....com>
---
 fs/btrfs/zoned.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/btrfs/zoned.c b/fs/btrfs/zoned.c
index 73e0aa9fc08a..4956baf8220a 100644
--- a/fs/btrfs/zoned.c
+++ b/fs/btrfs/zoned.c
@@ -2325,6 +2325,9 @@ 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);
-- 
2.43.0