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 2ED7A9476 for ; Sat, 21 Feb 2026 00:49:28 +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=1771634969; cv=none; b=CFghx1zT8Wu0Mi/WHgRHCuP6+1aBW9kA5t+tKZLeazh5tPu8rlsPRT57W4C0lJvuQJxwKoa1eeixFLEZvH+CeV8Ai0sz+xBSu7Ib5nXddnBn7UrJXyAiq2XmN8O7pGtGeJV0BkBn8dkYnBATlAoUFVf6Zgg8REJgTsTlY3FxNCs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771634969; c=relaxed/simple; bh=MLRAT2diIDRs8xTDNcuPfHJkjSNwaV/cFnVEhK1cg0E=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=IqKDhCLT4STZYB4bbPpisOd5A83ETFfJ1xHsu+kdMm1hSPbAwtqlXV5iQSDYYFzZgwRyTFJFPHQznZYSn4VW96vr44OujFhRJvxpvWhFWE0i7ki58nPwd7lHD51hqszd6Vhrya6Chv/hdK5wU78UOK07Df+RBKC+6JFwyhG8k7o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FnGg0f1W; 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="FnGg0f1W" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 81CD0C116D0; Sat, 21 Feb 2026 00:49:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1771634968; bh=MLRAT2diIDRs8xTDNcuPfHJkjSNwaV/cFnVEhK1cg0E=; h=From:To:Subject:Date:From; b=FnGg0f1WVnh3Lz9m/ZYp+j7QY3hxZ2v9CwqlvTW3LSRylltTCIPuGTbB8bItY2Blr OEbLQsheMSFYPxGT+EH19WpEwF2rl2IbJpCCoHeBjx7qBaifMy4L77VJKyQwcRlQOh xnzPoh2megN69ag2edIdDVEuR4jqWp8CJXE+SCv99J3CucnbMGYVlCOkzWfhLNPdz9 j4LL716YVVYd7aV0LQxlzg2YksYAPFGzgFL/E4uYJG5ayM8wZXz/Jab8GQh2UEgY2I lZT54YTcZebwdbDihKriKfdxkRP6T31k5km1/U7cjbhnBsV1ufDZiyH8Iy6eYbrTCs wllTnu4yp4hLg== From: Damien Le Moal To: Jens Axboe , linux-block@vger.kernel.org Subject: [PATCH 0/8] Improve zoned (SMR) HDD write throughput Date: Sat, 21 Feb 2026 09:44:03 +0900 Message-ID: <20260221004411.548482-1-dlemoal@kernel.org> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Jens, This patch series cleans up the zone write plugging code and introduces the ability to issue all write BIOs from a single context (a kthread) instead of allowing multiple zones to be written at the same time using a per zone work. As shown in patch 6, raw block device tests and XFS tests with an SMR HDD show that this can significantly increase write throughput (up to 40% over the current zone write plugging). Damien Le Moal (8): block: fix zone write plug removal block: remove BLK_ZONE_WPLUG_UNHASHED block: remove disk_zone_is_full() block: improve disk_zone_wplug_schedule_bio_work() block: rename struct gendisk zone_wplugs_lock field block: allow submitting all zone writes from a single context block: default to QD=1 writes for blk-mq rotational zoned devices Documentation: ABI: stable: document the zoned_qd1_writes attribute Documentation/ABI/stable/sysfs-block | 15 ++ block/blk-mq-debugfs.c | 1 + block/blk-sysfs.c | 43 ++++ block/blk-zoned.c | 312 ++++++++++++++++++++------- include/linux/blkdev.h | 10 +- 5 files changed, 298 insertions(+), 83 deletions(-) -- 2.53.0