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=-5.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 2655CECDE20 for ; Wed, 11 Sep 2019 17:21:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F1DA82053B for ; Wed, 11 Sep 2019 17:21:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729529AbfIKRVM (ORCPT ); Wed, 11 Sep 2019 13:21:12 -0400 Received: from mx2.suse.de ([195.135.220.15]:54032 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729130AbfIKRVM (ORCPT ); Wed, 11 Sep 2019 13:21:12 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id B2109AF57; Wed, 11 Sep 2019 17:21:10 +0000 (UTC) Received: by ds.suse.cz (Postfix, from userid 10065) id B3C66DA7D9; Wed, 11 Sep 2019 19:21:33 +0200 (CEST) Date: Wed, 11 Sep 2019 19:21:33 +0200 From: David Sterba To: Goldwyn Rodrigues Cc: linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, hch@infradead.org, andres@anarazel.de, david@fromorbit.com, riteshh@linux.ibm.com, linux-f2fs-devel@lists.sourceforge.net, Goldwyn Rodrigues Subject: Re: [PATCH 1/3] btrfs: fix inode rwsem regression Message-ID: <20190911172133.GJ2850@twin.jikos.cz> Reply-To: dsterba@suse.cz Mail-Followup-To: dsterba@suse.cz, Goldwyn Rodrigues , linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org, linux-btrfs@vger.kernel.org, hch@infradead.org, andres@anarazel.de, david@fromorbit.com, riteshh@linux.ibm.com, linux-f2fs-devel@lists.sourceforge.net, Goldwyn Rodrigues References: <20190911164517.16130-1-rgoldwyn@suse.de> <20190911164517.16130-2-rgoldwyn@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190911164517.16130-2-rgoldwyn@suse.de> User-Agent: Mutt/1.5.23.1-rc1 (2014-03-12) Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Wed, Sep 11, 2019 at 11:45:15AM -0500, Goldwyn Rodrigues wrote: > From: Goldwyn Rodrigues > > This is similar to 942491c9e6d6 ("xfs: fix AIM7 regression") > Apparently our current rwsem code doesn't like doing the trylock, then > lock for real scheme. So change our read/write methods to just do the > trylock for the RWF_NOWAIT case. > > Fixes: edf064e7c6fe ("btrfs: nowait aio support") > Signed-off-by: Goldwyn Rodrigues The subject seems to be a bit confusing so I'll update it, otherwise patch added to devel queue, thanks.