From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2E02FFF885C for ; Fri, 24 Apr 2026 22:42:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=hn5gt/kr7QDgHfqk6BJtfvqJ62o4kkrmwOKTA2D2kLY=; b=BEF1ATXHQNQUMob6VB1wYZPK7L 8m5Cepshi9r2uEN5WSnDsz7j5EKQksUN+HCjj0oQOf7xoT6/oMZQ9hOQmJz6eP3zMc7ixz5dgrgoT UtuwWITFW9lhYKVn3IXO/sgtJrCJurvE/oUOamfjHbQWUstB6YdnYeIgKUOS6RM5113ihaSG6hWTZ gO7gztugfD6g5yQl69d+/3or91aqoaXrbHKf5g5eqiygqw9SAjvSYjbnEn83HWtUq4p/3LddCtBWi LUV+XFwL7M4ivV82c09WZY10oRfTwmLyI6bChcPvmbHoTyfmQYzfxFIt3ziaMHeCjB5FF4IQQXb6e 7MoZ1DqA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1wGPET-0000000Dpvt-2cW3; Fri, 24 Apr 2026 22:42:45 +0000 Received: from 011.lax.mailroute.net ([199.89.1.14]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1wGPEQ-0000000Dprz-2Ob7 for linux-nvme@lists.infradead.org; Fri, 24 Apr 2026 22:42:43 +0000 Received: from localhost (localhost [127.0.0.1]) by 011.lax.mailroute.net (Postfix) with ESMTP id 4g2Sdt2sj6z1XLHYm; Fri, 24 Apr 2026 22:42:42 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:mime-version:references:in-reply-to :x-mailer:message-id:date:date:subject:subject:from:from :received:received; s=mr01; t=1777070558; x=1779662559; bh=hn5gt /kr7QDgHfqk6BJtfvqJ62o4kkrmwOKTA2D2kLY=; b=mJJt0tAd9F+e7XezCKlu+ cMif01CMnok1UpTVdunNApamb3sxfj5lSTzixS/6imv6K6BFtWSWD6L3OVydV10h Y/QJy6zIp0IrelzGTzpXolfFjgUKEzXMzEDPUc77tlirppNFgYcP2gjGUufP5XJ9 CcUfmNrZ14Dmh3N7kBdVenvCJOmCHvTlbTL9hW/67TBWNYNbpCfc5ImgOgVJg+tm +4wcm/I5aYg0N+JkbjByHd5CqEY12WTCYbkCdvvGApLYBBKvPHtiIvDRzEtVGXjK 6bt8RMxSpNaEhZiKJcL38rYWDqcx0kTAjg7OSi1kcx3XxckhOiteClSqViXO3tlZ Q== X-Virus-Scanned: by MailRoute Received: from 011.lax.mailroute.net ([127.0.0.1]) by localhost (011.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id x6VTYr4bWKdD; Fri, 24 Apr 2026 22:42:38 +0000 (UTC) Received: from bvanassche.mtv.corp.google.com (unknown [104.135.180.219]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 011.lax.mailroute.net (Postfix) with ESMTPSA id 4g2Sdm63KVz1XLF2r; Fri, 24 Apr 2026 22:42:36 +0000 (UTC) From: Bart Van Assche To: Jens Axboe Cc: linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, linux-nvme@lists.infradead.org, Christoph Hellwig , Nitesh Shetty , Bart Van Assche Subject: [PATCH 11/12] dm-linear: Enable copy offloading Date: Fri, 24 Apr 2026 15:42:00 -0700 Message-ID: <20260424224201.1949243-12-bvanassche@acm.org> X-Mailer: git-send-email 2.54.0.rc2.544.gc7ae2d5bb8-goog In-Reply-To: <20260424224201.1949243-1-bvanassche@acm.org> References: <20260424224201.1949243-1-bvanassche@acm.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260424_154242_628585_640881BD X-CRM114-Status: UNSURE ( 9.43 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Set BLK_FEAT_STACKING_COPY_OFFL and max_copy_hw_sectors to enable copy offloading. Signed-off-by: Bart Van Assche --- drivers/md/dm-linear.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c index 38c17846deb0..3de8bf5f11fb 100644 --- a/drivers/md/dm-linear.c +++ b/drivers/md/dm-linear.c @@ -119,6 +119,11 @@ static void linear_status(struct dm_target *ti, stat= us_type_t type, } } =20 +static void linear_io_hints(struct dm_target *ti, struct queue_limits *l= imits) +{ + limits->features |=3D BLK_FEAT_STACKING_COPY_OFFL; +} + static int linear_prepare_ioctl(struct dm_target *ti, struct block_devic= e **bdev, unsigned int cmd, unsigned long arg, bool *forward) @@ -211,6 +216,7 @@ static struct target_type linear_target =3D { .dtr =3D linear_dtr, .map =3D linear_map, .status =3D linear_status, + .io_hints =3D linear_io_hints, .prepare_ioctl =3D linear_prepare_ioctl, .iterate_devices =3D linear_iterate_devices, .direct_access =3D linear_dax_direct_access,