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 455DDC71133 for ; Fri, 25 Aug 2023 14:04:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=AtLoKYaE3DGuW/kOwDCTeuB612U+nLcr2HxA6NUs2Fg=; b=WxkZIWuUJ6NCkU Rxe9UIbMDbLmNKQxKdK2RTb0TEFatsQ8HiCjqEbXesCkuZ79aF780wWCNxTxesdWpCxaaQRyyXzm/ /IGN5xI45TnYCBjzW6h23DUxje4pQ101VVhAQQ7gyL/GgyHDueDUi3gXQpu/MRuQDfGKNxtxaHzxk Xxf8UcdQ71rdfdQUSGnqC6b60PUcuV1uLXiOP+rbkH6f/kaj9/jC0yPORyKCYV5KbgkvlKTcIPO9h 1qLfkIp38VcSWZja7Xxd5BzD/toLEupYJn7twzL/1ATVLDZW2L7IwnvxFg80Z2h5P7LirEJfew7pk W2C/OHXpkicHPemJbbLg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qZXQ6-005Xsp-0m; Fri, 25 Aug 2023 14:04:14 +0000 Received: from out-252.mta1.migadu.com ([2001:41d0:203:375::fc]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qZXQ3-005XqX-0G for linux-mtd@lists.infradead.org; Fri, 25 Aug 2023 14:04:12 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1692972248; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ZAHRQkTlH3B9Ayy3ByDVW6IFO8x4JKviNIiMKvNnRxw=; b=rqq9t63T1b93nHdvHPb4iPnifbVgNhCPhaGA0/+lVUtdq72oLevGN3oePkSOWgj4tFeMJO 883BuPqR+igY5LuYYZDHjdap5mSmKgc54EL0giqHkQRTPmks0t1/1oKfHQU1t1pMyd2ThX 7baCMPgFPzeqpA42kG/A+w1RFMlPw/c= From: Hao Xu To: io-uring@vger.kernel.org, Jens Axboe Cc: Dominique Martinet , Pavel Begunkov , Christian Brauner , Alexander Viro , Stefan Roesch , Clay Harris , Dave Chinner , "Darrick J . Wong" , linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-cachefs@redhat.com, ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-unionfs@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-mm@kvack.org, linux-nilfs@vger.kernel.org, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-mtd@lists.infradead.org, Wanpeng Li Subject: [PATCH 22/29] xfs: comment page allocation for nowait case in xfs_buf_find_insert() Date: Fri, 25 Aug 2023 21:54:24 +0800 Message-Id: <20230825135431.1317785-23-hao.xu@linux.dev> In-Reply-To: <20230825135431.1317785-1-hao.xu@linux.dev> References: <20230825135431.1317785-1-hao.xu@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230825_070411_260251_0E817767 X-CRM114-Status: UNSURE ( 8.84 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org From: Hao Xu Add comments for page allocation in nowait case in xfs_buf_find_insert() Signed-off-by: Hao Xu --- fs/xfs/xfs_buf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index eb3cd7702545..57bdc4c5dde1 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -633,6 +633,8 @@ xfs_buf_find_insert( * allocate the memory from the heap to minimise memory usage. If we * can't get heap memory for these small buffers, we fall back to using * the page allocator. + * xfs_buf_alloc_kmem may return -EAGAIN, let's not return it but turn + * to page allocator as well. */ if (BBTOB(new_bp->b_length) >= PAGE_SIZE || xfs_buf_alloc_kmem(new_bp, flags) < 0) { -- 2.25.1 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/