On 24.10.24 13:17, Sasha Levin wrote:

This is a note to let you know that I've just added the patch titled

 btrfs: also add stripe entries for NOCOW writes

to the 6.11-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: btrfs-also-add-stripe-entries-for-nocow-writes.patch and it can be found in the queue-6.11 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

Hey Sasha,

this patch is for the RAID stripe-tree feature marked as experimental, so I don't think it's needed to be backported, as noone should use it (apart from testing).

commit ec508a5930024b40064d70cb3dbdf856760cdf5d Author: Johannes Thumshirn johannes.thumshirn@wdc.com Date: Thu Sep 19 12:16:38 2024 +0200

 btrfs: also add stripe entries for NOCOW writes
 
 [ Upstream commit 97f9782276fc9cb0de37a5eecb82204e48a5a612 ]
 
 NOCOW writes do not generate stripe_extent entries in the RAID stripe
 tree, as the RAID stripe-tree feature initially was designed with a
 zoned filesystem in mind and on a zoned filesystem, we do not allow NOCOW
 writes. But the RAID stripe-tree feature is independent from the zoned
 feature, so we must also do NOCOW writes for RAID stripe-tree filesystems.
 
 Reviewed-by: Naohiro Aota <naohiro.aota@wdc.com>
 Signed-off-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
 Signed-off-by: David Sterba <dsterba@suse.com>
 Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index b1b6564ab68f0..48149c2e68954 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3087,6 +3087,11 @@ int btrfs_finish_one_ordered(struct btrfs_ordered_extent *ordered_extent) ret = btrfs_update_inode_fallback(trans, inode); if (ret) /* -ENOMEM or corruption */ btrfs_abort_transaction(trans, ret);

• ret = btrfs_insert_raid_extent(trans, ordered_extent);
  

• if (ret)
  

• 	btrfs_abort_transaction(trans, ret);
  

• goto out; }