Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261264AbVCMNwL (ORCPT ); Sun, 13 Mar 2005 08:52:11 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261270AbVCMNwL (ORCPT ); Sun, 13 Mar 2005 08:52:11 -0500 Received: from smtpout.mac.com ([17.250.248.86]:43999 "EHLO smtpout.mac.com") by vger.kernel.org with ESMTP id S261264AbVCMNwH (ORCPT ); Sun, 13 Mar 2005 08:52:07 -0500 In-Reply-To: References: Mime-Version: 1.0 (Apple Message framework v619) Content-Type: text/plain; charset=US-ASCII; format=flowed Message-Id: <0EFE5EBF-93C7-11D9-A59F-000393ACC76E@mac.com> Content-Transfer-Encoding: 7bit Cc: Miklos Szeredi , Linux Kernel Mailing List , fuse-devel@lists.sourceforge.net, mc@cs.stanford.edu From: Kyle Moffett Subject: Re: [MC] [CHECKER] Need help on mmap on FUSE (linux user-land file system) Date: Sun, 13 Mar 2005 08:51:54 -0500 To: Junfeng Yang X-Mailer: Apple Mail (2.619) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 922 Lines: 28 On Mar 13, 2005, at 02:28, Junfeng Yang wrote: > Forget to mention, we are checking linux 2.6. It appears to us that > mmap > doesnt' work for FUSE in linux 2.6. IIRC, the reason mmap doesn't work on FUSE is because when it dirties pages they cannot be flushed reliably, because writing them out involves calling a userspace process which may allocate RAM, etc. Cheers, Kyle Moffett -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCM/CS/IT/U d- s++: a18 C++++>$ UB/L/X/*++++(+)>$ P+++(++++)>$ L++++(+++) E W++(+) N+++(++) o? K? w--- O? M++ V? PS+() PE+(-) Y+ PGP+++ t+(+++) 5 X R? tv-(--) b++++(++) DI+ D+ G e->++++$ h!*()>++$ r !y?(-) ------END GEEK CODE BLOCK------ - 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/