Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932704AbbDWIfy (ORCPT ); Thu, 23 Apr 2015 04:35:54 -0400 Received: from mga14.intel.com ([192.55.52.115]:9521 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756016AbbDWIft (ORCPT ); Thu, 23 Apr 2015 04:35:49 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,629,1422950400"; d="scan'208";a="684414881" From: "Kweh, Hock Leong" To: James Bottomley , Peter Jones CC: Andy Lutomirski , Greg Kroah-Hartman , Matt Fleming , "Ming Lei" , "Ong, Boon Leong" , LKML , "linux-efi@vger.kernel.org" , Sam Protsenko , "Roy Franz" , Borislav Petkov Subject: RE: [PATCH v4 2/2] efi: an sysfs interface for user to update efi firmware Thread-Topic: [PATCH v4 2/2] efi: an sysfs interface for user to update efi firmware Thread-Index: AQHQdrzO9Y2+ZGg6U0KLDsR6juvZY51N4NhA//+pEQCAAVzbQIAB0EYAgAANNQCAA67xIIABCe6AgAE5nKCAAlwLZf//mNaAgAGjweA= Date: Thu, 23 Apr 2015 08:30:44 +0000 Message-ID: References: <20150415131906.GC21491@kroah.com> <20150417134924.GB19794@kroah.com> <20150417143640.GB3671@codeblueprint.co.uk> <20150420144323.GA7261@kroah.com> <20150421075620.GA11000@kroah.com> <1429665679.2207.44.camel@HansenPartnership.com> <20150422132734.GB12062@redhat.com> <1429715913.2195.22.camel@HansenPartnership.com> In-Reply-To: <1429715913.2195.22.camel@HansenPartnership.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.30.20.205] Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by nfs id t3N8Zxts026064 Content-Length: 877 Lines: 21 > -----Original Message----- > From: James Bottomley [mailto:James.Bottomley@HansenPartnership.com] > Sent: Wednesday, April 22, 2015 11:19 PM > > > Yes, I think we've all agreed we can do it ... it's now a question of whether we > can stomach the ick factor of actually initiating a transaction in close ... I'm still > feeling queasy. The file "close" here can I understand that the file system will call the "release" function at the file_operations struct? http://lxr.free-electrons.com/source/include/linux/fs.h#L1538 So, James you are meaning that we could initiating the update transaction inside the f_ops->release() and return the error code if update failed in this function? Thanks & Regards, Wilson ????{.n?+???????+%?????ݶ??w??{.n?+????{??G?????{ay?ʇڙ?,j??f???h?????????z_??(?階?ݢj"???m??????G????????????&???~???iO???z??v?^?m???? ????????I?