From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Mon, 07 May 2007 11:58:53 -0700 (PDT) Received: from poczta.o2.pl (mx12.go2.pl [193.17.41.142]) by oss.sgi.com (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id l47IwjfB013062 for ; Mon, 7 May 2007 11:58:46 -0700 From: =?utf-8?q?=C5=81ukasz_Fibinger?= Reply-To: lucke@o2.pl Subject: Re: RESVSP problems Date: Mon, 7 May 2007 20:58:32 +0200 References: <200705072004.22848.lucke@o2.pl> <463F7368.8090101@sandeen.net> In-Reply-To: <463F7368.8090101@sandeen.net> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200705072058.32679.lucke@o2.pl> Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: Eric Sandeen Cc: xfs@oss.sgi.com On Monday 07 of May 2007, you wrote: > You've probably hit: > http://oss.sgi.com/bugzilla/show_bug.cgi?id=418 > unwritten extents remain unwritten after mmap() modifies them > > Bug dchinner about it... ;-) Dave, consider it a bugging from my humble self :-) > yeah... ISTR that the arguments are funky. I can't remember if it's a > bug or not. :) FWIW, allocsp just writes zeros to the file, so you > could do it just as well from userspace w/ no fancy ioctls... ALLOCSP > is a bit pointless if you ask me... though maybe someone knows why it's > there :) Let me say that I have noticed that using ALLOCSP seems to create less extents than posix_fallocate/manual zeroing. Thanks for your answer. Incidentally, I'm really happy that XFS has been bestowed upon linux users. Thanks for all your work, guys :-) Cheers, Luke