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 X-Spam-Level: X-Spam-Status: No, score=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=no 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 B9225C433DF for ; Fri, 3 Jul 2020 09:53:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8587B2073E for ; Fri, 3 Jul 2020 09:53:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="YJdhd8P/" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726022AbgGCJxd (ORCPT ); Fri, 3 Jul 2020 05:53:33 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:39052 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725915AbgGCJxc (ORCPT ); Fri, 3 Jul 2020 05:53:32 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1593770012; 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; bh=0PGiJVpJLRg1xkJmVjcLSvVDlRTvj62k3+35QdFjYI8=; b=YJdhd8P/g0mqVQmGYUVSssFN2n9HiSRVj8wZAJ0FTtK95cdLNpes0Ge27IkiCYTa5IZHQZ 5/BRh9X/FceP8BMMeWLBElYpM08XlQUS0cEqWDNRUDUgwVV6ObFX+VkGDnSrEk1m1L7u6Y Vc8gV79XwJmyKehqI5bP/PGTro3ima0= 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-307-lP1u1ZQFMk6FNoHo3j0ckA-1; Fri, 03 Jul 2020 05:53:30 -0400 X-MC-Unique: lP1u1ZQFMk6FNoHo3j0ckA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id E24DF800401; Fri, 3 Jul 2020 09:53:28 +0000 (UTC) Received: from max.home.com (unknown [10.40.192.26]) by smtp.corp.redhat.com (Postfix) with ESMTP id 0ED9C6111F; Fri, 3 Jul 2020 09:53:26 +0000 (UTC) From: Andreas Gruenbacher To: Linus Torvalds Cc: Matthew Wilcox , Dave Chinner , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Andreas Gruenbacher Subject: [RFC v2 0/2] Fix gfs2 readahead deadlocks Date: Fri, 3 Jul 2020 11:53:23 +0200 Message-Id: <20200703095325.1491832-1-agruenba@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Here's an improved version. If the IOCB_NOIO flag can be added right away, we can just fix the locking in gfs2. Thanks, Andreas Andreas Gruenbacher (2): fs: Add IOCB_NOIO flag for generic_file_read_iter gfs2: Rework read and page fault locking fs/gfs2/aops.c | 45 +-------------------------------------- fs/gfs2/file.c | 52 ++++++++++++++++++++++++++++++++++++++++++++-- include/linux/fs.h | 1 + mm/filemap.c | 17 +++++++++++++-- 4 files changed, 67 insertions(+), 48 deletions(-) -- 2.26.2