From patchwork Thu Jan 28 07:11:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chaitanya Kulkarni X-Patchwork-Id: 373584 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A5EF0C433E0 for ; Thu, 28 Jan 2021 07:56:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4F79864DD6 for ; Thu, 28 Jan 2021 07:56:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232254AbhA1Hzn (ORCPT ); Thu, 28 Jan 2021 02:55:43 -0500 Received: from esa5.hgst.iphmx.com ([216.71.153.144]:16178 "EHLO esa5.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231579AbhA1HNh (ORCPT ); Thu, 28 Jan 2021 02:13:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1611818017; x=1643354017; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yNs/pnE8yDpXGswjvz9qkLYz+CA1dL9+4aNznurTKfw=; b=NK252EKCjEmavMNqysHryDFFX9Ab2YadUu2cK3MPGJgHY1zYv1P7lkT1 MgQnCO3qI2yWNAupMIjndiO965MWaUwC9NmgqEesWbqB96uVrmJAa+E4o 1WIgOPWNqMnAizyMFG7cXz4Iy9hAJW9jjkGpPnucecfkNmsbOp1WLjpcz fZEEiNHAfS2k7HnPRCP0JxwHXiEpqDBxyZfYow2BsMn6FWaE0E4U+2CgI GRzhOc30AVt/t8lAGl1beEQdUF7fCNt6tObyYMUz8lYp/ZOJz38gXAe6T bAk7MZT0rFmw91JA2bPq7EaszndTbbrpw2kfeZGzYD/77mNXbgwk5Hyrn A==; IronPort-SDR: Ex5/iAGHHr/D70S/ddSRyQZ8XO1wNJPg357Nse7n1UfrF09MRUQUagKwvOgEw9+8zi/z83DjBo 1/lWlkQ6WrUTgGKLOnCE1gv5LWIWQLpRaJdyFl3KFvumhjlynBtRZtg0BXyHbj5IdriugPqkbW 4TGoy/bnLzrBYbJRYcy4VTyKy3qCHFBkuGSVeKHZZ1x9TKDQvGPAtS8/QxGIUfv+JdRQNSanCA LX52aGomGjR7EF0yWfWiT7V2GXyaS7DM9pHUqtks+HhXn15r0GPZdlkYdmJHzHheBWOOR/nLrm C9Q= X-IronPort-AV: E=Sophos;i="5.79,381,1602518400"; d="scan'208";a="158518069" Received: from uls-op-cesaip02.wdc.com (HELO uls-op-cesaep02.wdc.com) ([199.255.45.15]) by ob1.hgst.iphmx.com with ESMTP; 28 Jan 2021 15:12:26 +0800 IronPort-SDR: 5hsv9wnCP5D94GKGuwBELxnohAflNYwRHdrWm3fTf1ZJLs7K386iSwLh9HIXrSUQbmc790psCo gDFjHP7cqpdgLSoAhOSaUe/TCYkttE4m3zfjQlnwyfNDzA2vE0wKiQQ3PSpOi+P6EUdw9ZMkLP mAEjxegfsi20N9fLF+HMe2LOT4/mN6eQ7Fo+82i4FJ8ogLP7jyQAjO552e1ldRnqe/vPX/WFzA KelbYkoOh8/uEPeS3UMO/70/JMqqQOKDRfmbImkor7n7Mra+tVIqqFp9lNAOWA69T2QW25jjUu NxV8aivDCRKKy9R+rr1A5rwo Received: from uls-op-cesaip02.wdc.com ([10.248.3.37]) by uls-op-cesaep02.wdc.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jan 2021 22:54:44 -0800 IronPort-SDR: AXyfJ+0DzRblLd1C2a8i26F/p5ozSimYWSlSS31hVM9ZD6XicSUM+PrSEKfC1Dird0dpCST4jr RH8MY1sbvDVq5P84PowPihV3IFXmyzQNH7jhgBGPCvDUQHmJMRxTWJczw7haMsXH6G94Is8ChW 3Thpc5BIBnKiKhlT74BApZ+91+Tr+DAOOck7bXVmzNs8yvwHiSmvLe1vToPqpHXLGvuEQ8CHDc wMtFD3vO2n6mQgoI8Yf56mEPo6oNIWF003bHhQMN3DD+ikOw4kJGblAZl7I7M30srcHVxOHbPk wqE= WDCIronportException: Internal Received: from vm.labspan.wdc.com (HELO vm.sc.wdc.com) ([10.6.137.102]) by uls-op-cesaip02.wdc.com with ESMTP; 27 Jan 2021 23:12:26 -0800 From: Chaitanya Kulkarni To: linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, dm-devel@redhat.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com, xen-devel@lists.xenproject.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org, target-devel@vger.kernel.org, linux-fscrypt@vger.kernel.org, jfs-discussion@lists.sourceforge.net, linux-nilfs@vger.kernel.org, ocfs2-devel@oss.oracle.com, linux-pm@vger.kernel.org, linux-mm@kvack.org Cc: axboe@kernel.dk, philipp.reisner@linbit.com, lars.ellenberg@linbit.com, konrad.wilk@oracle.com, roger.pau@citrix.com, minchan@kernel.org, ngupta@vflare.org, sergey.senozhatsky.work@gmail.com, agk@redhat.com, snitzer@redhat.com, hch@lst.de, sagi@grimberg.me, chaitanya.kulkarni@wdc.com, martin.petersen@oracle.com, viro@zeniv.linux.org.uk, tytso@mit.edu, jaegeuk@kernel.org, ebiggers@kernel.org, djwong@kernel.org, shaggy@kernel.org, konishi.ryusuke@gmail.com, mark@fasheh.com, jlbec@evilplan.org, joseph.qi@linux.alibaba.com, damien.lemoal@wdc.com, naohiro.aota@wdc.com, jth@kernel.org, rjw@rjwysocki.net, len.brown@intel.com, pavel@ucw.cz, akpm@linux-foundation.org, hare@suse.de, gustavoars@kernel.org, tiwai@suse.de, alex.shi@linux.alibaba.com, asml.silence@gmail.com, ming.lei@redhat.com, tj@kernel.org, osandov@fb.com, bvanassche@acm.org, jefflexu@linux.alibaba.com Subject: [RFC PATCH 05/34] xen-blkback: use bio_new Date: Wed, 27 Jan 2021 23:11:04 -0800 Message-Id: <20210128071133.60335-6-chaitanya.kulkarni@wdc.com> X-Mailer: git-send-email 2.22.1 In-Reply-To: <20210128071133.60335-1-chaitanya.kulkarni@wdc.com> References: <20210128071133.60335-1-chaitanya.kulkarni@wdc.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Create a wrapper on the tio of the bio_new() named get_new_bio() & use it in the dispatch_rw_block_io(). p Signed-off-by: Chaitanya Kulkarni --- drivers/block/xen-blkback/blkback.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c index 9ebf53903d7b..3760278f0ee6 100644 --- a/drivers/block/xen-blkback/blkback.c +++ b/drivers/block/xen-blkback/blkback.c @@ -1174,6 +1174,15 @@ do_block_io_op(struct xen_blkif_ring *ring, unsigned int *eoi_flags) return more_to_do; } + +static struct bio * +get_new_bio(struct phys_req *preq, unsigned int op, unsigned int op_flags, + gfp_t gfp_mask, unsigned int nr_bvec) +{ + return bio_new(preq->bdev, preq->sector_number, op, op_flags, nr_bvec, + gfp_mask); + +} /* * Transmutation of the 'struct blkif_request' to a proper 'struct bio' * and call the 'submit_bio' to pass it to the underlying storage. @@ -1324,16 +1333,14 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, seg[i].offset) == 0)) { int nr_iovecs = min_t(int, (nseg-i), BIO_MAX_PAGES); - bio = bio_alloc(GFP_KERNEL, nr_iovecs); + bio = get_new_bio(&preq, operation, operation_flags, + GFP_KERNEL, nr_iovecs); if (unlikely(bio == NULL)) goto fail_put_bio; biolist[nbio++] = bio; - bio_set_dev(bio, preq.bdev); bio->bi_private = pending_req; bio->bi_end_io = end_block_io_op; - bio->bi_iter.bi_sector = preq.sector_number; - bio_set_op_attrs(bio, operation, operation_flags); } preq.sector_number += seg[i].nsec; @@ -1343,15 +1350,14 @@ static int dispatch_rw_block_io(struct xen_blkif_ring *ring, if (!bio) { BUG_ON(operation_flags != REQ_PREFLUSH); - bio = bio_alloc(GFP_KERNEL, 0); + bio = get_new_bio(&preq, operation, operation_flags, + GFP_KERNEL, 0); if (unlikely(bio == NULL)) goto fail_put_bio; biolist[nbio++] = bio; - bio_set_dev(bio, preq.bdev); bio->bi_private = pending_req; bio->bi_end_io = end_block_io_op; - bio_set_op_attrs(bio, operation, operation_flags); } atomic_set(&pending_req->pendcnt, nbio);