From patchwork Tue Jan 26 14:52:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12047151 X-Patchwork-Delegate: snitzer@redhat.com 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=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 63A05C433E6 for ; Tue, 26 Jan 2021 15:24:01 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D7638230FE for ; Tue, 26 Jan 2021 15:24:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D7638230FE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=tempfail smtp.mailfrom=dm-devel-bounces@redhat.com Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-293-civjYZHbPRyf5mis8xbv6w-1; Tue, 26 Jan 2021 10:23:57 -0500 X-MC-Unique: civjYZHbPRyf5mis8xbv6w-1 Received: from smtp.corp.redhat.com (int-mx04.intmail.prod.int.phx2.redhat.com [10.5.11.14]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 063A019251B3; Tue, 26 Jan 2021 15:23:52 +0000 (UTC) Received: from colo-mx.corp.redhat.com (colo-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.21]) by smtp.corp.redhat.com (Postfix) with ESMTPS id DD47D5D9C2; Tue, 26 Jan 2021 15:23:51 +0000 (UTC) Received: from lists01.pubmisc.prod.ext.phx2.redhat.com (lists01.pubmisc.prod.ext.phx2.redhat.com [10.5.19.33]) by colo-mx.corp.redhat.com (Postfix) with ESMTP id AE46F4A7C6; Tue, 26 Jan 2021 15:23:51 +0000 (UTC) Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com [10.11.54.5]) by lists01.pubmisc.prod.ext.phx2.redhat.com (8.13.8/8.13.8) with ESMTP id 10QFNotZ015423 for ; Tue, 26 Jan 2021 10:23:50 -0500 Received: by smtp.corp.redhat.com (Postfix) id A3E2294580; Tue, 26 Jan 2021 15:23:50 +0000 (UTC) Received: from mimecast-mx02.redhat.com (mimecast01.extmail.prod.ext.rdu2.redhat.com [10.11.55.17]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 9E75894561 for ; Tue, 26 Jan 2021 15:23:48 +0000 (UTC) Received: from us-smtp-1.mimecast.com (us-smtp-delivery-1.mimecast.com [207.211.31.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 4DB5B858285 for ; Tue, 26 Jan 2021 15:23:48 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-297-x5NOPkK9Mc27uSNnC-lRCg-1; Tue, 26 Jan 2021 10:23:45 -0500 X-MC-Unique: x5NOPkK9Mc27uSNnC-lRCg-1 Received: from [2001:4bb8:191:e347:5918:ac86:61cb:8801] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1l4Q8n-005ohh-NM; Tue, 26 Jan 2021 15:21:22 +0000 From: Christoph Hellwig To: Jens Axboe , Song Liu Date: Tue, 26 Jan 2021 15:52:46 +0100 Message-Id: <20210126145247.1964410-17-hch@lst.de> In-Reply-To: <20210126145247.1964410-1-hch@lst.de> References: <20210126145247.1964410-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Mimecast-Impersonation-Protect: Policy=CLT - Impersonation Protection Definition; Similar Internal Domain=false; Similar Monitored External Domain=false; Custom External Domain=false; Mimecast External Domain=false; Newly Observed Domain=false; Internal User Name=false; Custom Display Name List=false; Reply-to Address Mismatch=false; Targeted Threat Dictionary=false; Mimecast Threat Dictionary=false; Custom Threat Dictionary=false X-Scanned-By: MIMEDefang 2.79 on 10.11.54.5 X-loop: dm-devel@redhat.com Cc: Mike Snitzer , David Sterba , dm-devel@redhat.com, Naohiro Aota , linux-nilfs@vger.kernel.org, Josef Bacik , Chao Yu , linux-nfs@vger.kernel.org, Coly Li , linux-raid@vger.kernel.org, linux-bcache@vger.kernel.org, drbd-dev@tron.linbit.com, Jaegeuk Kim , Ryusuke Konishi , linux-block@vger.kernel.org, Damien Le Moal , Andrew Morton , linux-mm@kvack.org, Philipp Reisner , linux-f2fs-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org, Lars Ellenberg , linux-btrfs@vger.kernel.org Subject: [dm-devel] [PATCH 16/17] nilfs2: remove cruft in nilfs_alloc_seg_bio X-BeenThere: dm-devel@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: device-mapper development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=dm-devel-bounces@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com bio_alloc never returns NULL when it can sleep. Signed-off-by: Christoph Hellwig Reviewed-by: Chaitanya Kulkarni --- fs/nilfs2/segbuf.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c index 1a8729eded8b14..1e75417bfe6e52 100644 --- a/fs/nilfs2/segbuf.c +++ b/fs/nilfs2/segbuf.c @@ -386,10 +386,6 @@ static struct bio *nilfs_alloc_seg_bio(struct the_nilfs *nilfs, sector_t start, struct bio *bio; bio = bio_alloc(GFP_NOIO, nr_vecs); - if (bio == NULL) { - while (!bio && (nr_vecs >>= 1)) - bio = bio_alloc(GFP_NOIO, nr_vecs); - } if (likely(bio)) { bio_set_dev(bio, nilfs->ns_bdev); bio->bi_iter.bi_sector =