From patchwork Thu Mar 30 10:43:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Thumshirn X-Patchwork-Id: 13193922 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A197DC77B6E for ; Thu, 30 Mar 2023 10:45:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231284AbjC3Kp3 (ORCPT ); Thu, 30 Mar 2023 06:45:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34312 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229488AbjC3Ko4 (ORCPT ); Thu, 30 Mar 2023 06:44:56 -0400 Received: from esa2.hgst.iphmx.com (esa2.hgst.iphmx.com [68.232.143.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 151CB9774; Thu, 30 Mar 2023 03:44:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=wdc.com; i=@wdc.com; q=dns/txt; s=dkim.wdc.com; t=1680173068; x=1711709068; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=L3cfRA2wikfkIsf3C8GxTLr6ByhKgTx7ps7OwYMzkj4=; b=POEKyhA5Vk6lmOfMkoU+DV9SU4PDKYlj4WaIbCESewaBxJVZAFyWuHtq SoBryOr8hqkjXCwO+0g6bCRfpYyR9xNijs/TnxNRyjxzDwjZSvgffvBzL SptEixs3EBW1m1H+vJmQsH5ukIJR9o9ogPhS4m23d1W193r2Lvpig36eo a57xmD3QvqTsQ36tCRtynV3GSXDWgWJQplcABfb4MzxJapAyZ1gV0NEpQ 7tFRgbnw0Fed/svKh0a+ilDsy0CI3gR3Qj7HxnoZmY8ayoAn/nX4GFVUZ Aj82EO3TOXtc4u/jZkbmiNOt99PasZqFlK8s5xPLZ8svTmYfOZLThTynd w==; X-IronPort-AV: E=Sophos;i="5.98,303,1673884800"; d="scan'208";a="331317818" Received: from h199-255-45-14.hgst.com (HELO uls-op-cesaep01.wdc.com) ([199.255.45.14]) by ob1.hgst.iphmx.com with ESMTP; 30 Mar 2023 18:44:12 +0800 IronPort-SDR: /jLUXoPmBUMaBeihSuIwE/EGwONQSD6pRBO17B5ukOMtrKUiI+G6Ooi4UwdOPIU5aiRiVekypH sBcbXMblBRx+d9qqN9B+xqDtcaxBFFHdg26vQH1Vu5rIV0pEiymWSlb/mjwA6e5NV4h0iDwmk7 9GJWgKdkFR6LbMkk1rnZ2R927b6p96A7YQeylkS1ri0E1sT/TXQ4S2dXQ/MCYgOwhX/TMApx90 Dl99KRqUaNGunL8JcvBomxHdasUZquzCwAF738BfKJUDXrdfra5Kntvj4TN3UnPeUp+0o4rs2Z F84= Received: from uls-op-cesaip01.wdc.com ([10.248.3.36]) by uls-op-cesaep01.wdc.com with ESMTP/TLS/ECDHE-RSA-AES128-GCM-SHA256; 30 Mar 2023 03:00:20 -0700 IronPort-SDR: RehRzaThR0hc37wNjqkltJ+dfO/hlRGJetFrnAX1UOANVz9k5ZIJ+kSDt8opKJGJOwIrFyEeZk TwtDv9Huypg0wYz4dm/8NDnvwLaqh3eVfRvAkWkT6VvIVHouxmJ9cojW5aiBrZ2cuUyar8GmxH pM7pZBufBx/ouszcaAOPMBaDxfOwlbo6DAOIZUQEsZdRgiXOJyXcbpTXXM52G8GbwuePmG9tD7 6CT3hnKgyfR15tAPquXFKRiXeuWuTEb6OxiN0Sdo2XMa4aDdkQ/G6vt9d7MC/I6z4RZ/z+UW9i T4A= WDCIronportException: Internal Received: from unknown (HELO redsun91.ssa.fujisawa.hgst.com) ([10.149.66.72]) by uls-op-cesaip01.wdc.com with ESMTP; 30 Mar 2023 03:44:09 -0700 From: Johannes Thumshirn To: Jens Axboe Cc: Christoph Hellwig , Hannes Reinecke , Chaitanya Kulkarni , Damien Le Moal , Ming Lei , linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, dm-devel@redhat.com, Song Liu , linux-raid@vger.kernel.org, Mike Snitzer , Matthew Wilcox , Dave Kleikamp , jfs-discussion@lists.sourceforge.net, cluster-devel@redhat.com, Bob Peterson , Andreas Gruenbacher , David Sterba , linux-btrfs@vger.kernel.org, Johannes Thumshirn , Damien Le Moal Subject: [PATCH v2 02/19] drbd: use __bio_add_page to add page to bio Date: Thu, 30 Mar 2023 03:43:44 -0700 Message-Id: <01716d15d92c2dc01607b0491199d7a4ad3fced9.1680172791.git.johannes.thumshirn@wdc.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org The drbd code only adds a single page to a newly created bio. So use __bio_add_page() to add the page which is guaranteed to succeed in this case. This brings us closer to marking bio_add_page() as __must_check. Signed-off-by: Johannes Thumshirn Reviewed-by: Damien Le Moal --- drivers/block/drbd/drbd_bitmap.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index 289876ffbc31..050154eb963d 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -1043,9 +1043,7 @@ static void bm_page_io_async(struct drbd_bm_aio_ctx *ctx, int page_nr) __must_ho bio = bio_alloc_bioset(device->ldev->md_bdev, 1, op, GFP_NOIO, &drbd_md_io_bio_set); bio->bi_iter.bi_sector = on_disk_sector; - /* bio_add_page of a single page to an empty bio will always succeed, - * according to api. Do we want to assert that? */ - bio_add_page(bio, page, len, 0); + __bio_add_page(bio, page, len, 0); bio->bi_private = ctx; bio->bi_end_io = drbd_bm_endio;