Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752199AbYKXF6N (ORCPT ); Mon, 24 Nov 2008 00:58:13 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750837AbYKXF55 (ORCPT ); Mon, 24 Nov 2008 00:57:57 -0500 Received: from accolon.hansenpartnership.com ([76.243.235.52]:53934 "EHLO accolon.hansenpartnership.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750806AbYKXF54 (ORCPT ); Mon, 24 Nov 2008 00:57:56 -0500 Subject: Re: about TRIM/DISCARD support and barriers From: James Bottomley To: Dongjun Shin Cc: Tejun Heo , Linux Kernel Mailing List , dwmw2@infradead.org, Nick Piggin , Jens Axboe , IDE/ATA development list , Jeff Garzik , chris.mason@oracle.com, Matthew Wilcox In-Reply-To: <7fe698080811232140ie896cc8m735a25261f447c47@mail.gmail.com> References: <4928E010.4090801@kernel.org> <4929023C.2060302@suse.de> <49290CEB.7070509@suse.de> <7fe698080811232140ie896cc8m735a25261f447c47@mail.gmail.com> Content-Type: text/plain Date: Mon, 24 Nov 2008 14:57:47 +0900 Message-Id: <1227506267.25499.22.camel@localhost.localdomain> Mime-Version: 1.0 X-Mailer: Evolution 2.22.3.1 (2.22.3.1-1.fc9) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1353 Lines: 33 On Mon, 2008-11-24 at 14:40 +0900, Dongjun Shin wrote: > On Sun, Nov 23, 2008 at 4:57 PM, Tejun Heo wrote: > > Tejun Heo wrote: > >> Dongjun, the only doc I can find about ATA TRIM is the following one. > >> > >> http://t13.org/Documents/UploadedDocuments/docs2007/e07154r3-Data_Set_Management_Proposal_for_ATA-ACS2.pdf > >> > >> And AFAICS this hasn't made into ACS yet. Is this what you guys are > >> gonna implement and Windows7 is gonna use? > > > > Sorry, I thought the trim spec has got into the final ACS, but it's not yet. > Microsoft can collaborate with SSD vendors for their internal evaluation & > feedback for Win7(with NDA between them, of course). Actually so can we assuming the developers are willing. If we have to sign an NDA to work with them, the Linux Foundation can stand as corporate guarantor for it: http://www.linuxfoundation.org/en/NDA_program It's crafted to allow development of open source drivers. It still requires individual developers to sign an NDA agreement with the LF (and the LF then does a corporate one with the companies involved). James -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/