From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1RromU-0001bb-Mm for mharc-grub-devel@gnu.org; Mon, 30 Jan 2012 05:48:14 -0500 Received: from eggs.gnu.org ([140.186.70.92]:53567) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RromN-0001Ys-OL for grub-devel@gnu.org; Mon, 30 Jan 2012 05:48:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1RromG-0000TY-Qm for grub-devel@gnu.org; Mon, 30 Jan 2012 05:48:07 -0500 Received: from mail-ww0-f49.google.com ([74.125.82.49]:64536) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1RromG-0000TL-Lm for grub-devel@gnu.org; Mon, 30 Jan 2012 05:48:00 -0500 Received: by wgbds1 with SMTP id ds1so3383411wgb.30 for ; Mon, 30 Jan 2012 02:47:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=kQW4xSDwTUTLi7+PJwfYsPrIxarEWR3TUyclCS8FfzM=; b=FFxWZsxmkX6p9/Y2X/iT2IeJrqg2kpjpA5Lo3fOeHRIOS/68thq0jtSrHImWyos17A JkG2UcqB/UNm2o8eBfc9lm3hFMpwSeDI8ngyDOC9Gfj4ThzyFtuuyS4lOyU16pYP8Oy+ tP4SOJJefLG4TMQVOIIArVIBPSukh91dJrajc= Received: by 10.180.94.68 with SMTP id da4mr25959081wib.22.1327920479696; Mon, 30 Jan 2012 02:47:59 -0800 (PST) Received: from debian.x201.phnet (7-77.203-62.cust.bluewin.ch. [62.203.77.7]) by mx.google.com with ESMTPS id t6sm29296096wid.1.2012.01.30.02.47.57 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 30 Jan 2012 02:47:58 -0800 (PST) Message-ID: <4F26755C.50607@gmail.com> Date: Mon, 30 Jan 2012 11:47:56 +0100 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20120104 Icedove/8.0 MIME-Version: 1.0 To: The development of GNU GRUB Subject: Re: [RFC] FIEMAP and disk sync issues References: <4F22A683.4020607@gmail.com> <874nvd4h4z.fsf@frosties.localnet> In-Reply-To: <874nvd4h4z.fsf@frosties.localnet> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 74.125.82.49 Cc: Goswin von Brederlow X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 30 Jan 2012 10:48:11 -0000 > So it is a matter of implementing the right callback in BFS to support > FIBMAP/FIEMAP. Same for ntfs3g. ntfs3g does implement bmap. Problem is that the only way to access this from userspace is FIBMAP which cuts to 32-bits. FIEMAP is implemented as a different ioctl rather than piggybacking on bmap. -- Regards Vladimir 'φ-coder/phcoder' Serbinenko