Received: by 2002:ac0:a5a7:0:0:0:0:0 with SMTP id m36-v6csp678411imm; Wed, 11 Jul 2018 09:07:54 -0700 (PDT) X-Google-Smtp-Source: AAOMgpcOYGBjTm6JbXbm9XPrwp3Qw2jiNjy/cFhs1BRB2iiOVz6cKgnY0Kvw/P+0RNQwizZelIhQ X-Received: by 2002:a62:4585:: with SMTP id n5-v6mr30855637pfi.32.1531325273964; Wed, 11 Jul 2018 09:07:53 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1531325273; cv=none; d=google.com; s=arc-20160816; b=vBi2Qa7z/jvVP+sko1iFXBAyJ+xV0XgeOnuCC//7h9JBxmrQM4ZLmNgWb5CdNQfuJb FoNE85M5oML1icfVdgZyjKvr7nz49iY/6Zl4tuExBU0Vcv7UvPwGrB1J+3Y5fECwueHd qO8+8hwRZOejmPajj1PwJBupPySsKMzINMregxVfbIRnr6TftyToaEpuP4E5C4XOVUx/ 9Pv18wbNv993gjjg5mCSAeSpsHaNzkeGrib7iNZhqu/5PVNt7X5LRCRZjxNXGHkRAgfz YVwFqWFbARzmETnb+ul1kFPLBkLsOALy1hlfJ3No0sCfNq2g2yL4iaHmNMR5rrSxmSE1 j+bg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:date:message-id:subject:cc:from:to :in-reply-to:arc-authentication-results; bh=uXfUFhuaBXfTw6ujpmmShAlZ6Kt/B3xcEsj4kIekD6Q=; b=NWtmFrHYsk531N5/1AD6Ei1fg1bDnkkSYgKhApbid+Uo7RqU98GrMq0SQHOpvq+ZrG n8fQEG8PPERGYBraJnlHy08HjQKMJId9GUeoceWHdT0lfwNJQNL3eRGOaV5sS3UPBMHI NZZTmA5KrucBv/IF6epxws7Aq0ohHX/yhExhSJtKlyUjhNycugwYQPVHHU8zYyj0qQPM nFNe9JoYn0pKQDQwqrzUidoyuUjl1nKiyojGAHY/YsYn24yfVuKSTGop8Y3hhbz5oiw6 xUJmJdWjrh1hLIaKvykeq009Ssv+c/igtz39RRyYd6oClZvW5uqT+5/fmHVZ1VzIJCEq 1Y6w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id y20-v6si18094831pga.89.2018.07.11.09.07.38; Wed, 11 Jul 2018 09:07:53 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387848AbeGKN2a (ORCPT + 99 others); Wed, 11 Jul 2018 09:28:30 -0400 Received: from ozlabs.org ([203.11.71.1]:50751 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732530AbeGKN2a (ORCPT ); Wed, 11 Jul 2018 09:28:30 -0400 Received: by ozlabs.org (Postfix, from userid 1034) id 41Qft01FR3zB4MS; Wed, 11 Jul 2018 23:24:07 +1000 (AEST) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: a545cf032d11437ed86e62f00d499108d91cae54 In-Reply-To: <20180611202904.GA25538@jordon-HP-15-Notebook-PC> To: Souptick Joarder , willy@infradead.org, fbarrat@linux.vnet.ibm.com, andrew.donnellan@au1.ibm.com, arnd@arndb.de, gregkh@linuxfoundation.org From: Michael Ellerman Cc: brajeswar.linux@gmail.com, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, sabyasachi.linux@gmail.com Subject: Re: misc: ocxl: Change return type for fault handler Message-Id: <41Qft01FR3zB4MS@ozlabs.org> Date: Wed, 11 Jul 2018 23:24:07 +1000 (AEST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2018-06-11 at 20:29:04 UTC, Souptick Joarder wrote: > Use new return type vm_fault_t for fault handler. For > now, this is just documenting that the function returns > a VM_FAULT value rather than an errno. Once all instances > are converted, vm_fault_t will become a distinct type. > > Ref-> commit 1c8f422059ae ("mm: change return type to vm_fault_t") > > There is an existing bug when vm_insert_pfn() can return > ENOMEM which was ignored and VM_FAULT_NOPAGE returned as > default. The new inline vmf_insert_pfn() has removed > this inefficiency by returning correct vm_fault_ type. > > Signed-off-by: Souptick Joarder > Acked-by: Andrew Donnellan > Acked-by: Frederic Barrat Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/a545cf032d11437ed86e62f00d4991 cheers