From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F1CB93A4532 for ; Tue, 31 Mar 2026 19:45:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774986357; cv=none; b=tiJAA2gfP2/NdzCgnc5KXva7wBJZwLzjXTnmnwY8taIQfGBGPS+2hQU9SvYE4I3ahYtwKWQmQFANRCKDd9OwVZDnVXN8Kqu82V1RPW8WoTiTC6nvjJvy8MoADUkcZIoNs4GzI0sDemvQp4uE3cKvRDO6L315ga7r/FDTo6gtmB4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774986357; c=relaxed/simple; bh=WMEGoeKNa36L7rLgn1Ij5cEwVhoxdCR84ioMuzDOo88=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=SVFqfJ06+0J54F/yBbb3Uerj1ywO/XBFt9HQ47smZKpMt3aGo+uR/5HN+Fk3ngpvi/1Xbx6VQ+cbyvlsQc8SdvUFGF53jrYW0l4CzIx2zptsoz9kAb3vY4ff5WuV6icJ1QdNw29LbDFRJBctaflGIg5QP9qibkyc2EGE7TBeA90= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AosiPsnP; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AosiPsnP" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE9F7C19423; Tue, 31 Mar 2026 19:45:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774986356; bh=WMEGoeKNa36L7rLgn1Ij5cEwVhoxdCR84ioMuzDOo88=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=AosiPsnPnGxOPEq8KE5eNOuSxQW6SfFeYJ8fFMz1Wtksv3SHOCgbGB47gzL3ySye5 DJhYitRYItgEZsasjZySv3IQPrCCTHrCejVi1hYK5pIj+fIVrcSh6LcljWmqyyjaN5 cnD16v5OjuOLUBgjbO9lThEgSaLB43ttWf15kvlZOvR/kJwl6mWZspuExbsOq42ifB LkQg3SobTaXY3lEhK9+gO5fQh1pOQFwRCOuAfLd5z9tDyvmr14XNlXioajf1cjdDvv DwULTLO15ix8RiUDgpdr0rva8kyaE0PJFtf/ps2q1lFygWrLG/D/FTpqqFbKon15Ly 0k9Q4/5UVzqvg== Message-ID: <0ae6d911-e6f3-4d0d-a8bc-357bbe8e68e2@kernel.org> Date: Wed, 1 Apr 2026 04:45:54 +0900 Precedence: bulk X-Mailing-List: linux-xfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 8/9] xfs: expose the number of open zones in sysfs To: Christoph Hellwig , Carlos Maiolino Cc: Hans Holmberg , linux-xfs@vger.kernel.org References: <20260331152751.4048218-1-hch@lst.de> <20260331152751.4048218-9-hch@lst.de> Content-Language: en-US From: Damien Le Moal Organization: Western Digital Research In-Reply-To: <20260331152751.4048218-9-hch@lst.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 4/1/26 00:27, Christoph Hellwig wrote: > Add a sysfs attribute for the current number of open zones so that it > can be trivially read from userspace in monitoring or testing software. > > Signed-off-by: Christoph Hellwig I am not sure if the READ_ONCE() not being paired with a WRITE_ONCE() really helps here. Nevertheless, Reviewed-by: Damien Le Moal -- Damien Le Moal Western Digital Research