From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Mackerras Subject: Re: Interface for the new fallocate() system call Date: Mon, 9 Apr 2007 23:01:42 +1000 Message-ID: <17946.14646.808334.441833@cargo.ozlabs.ibm.com> References: <20070225022326.137b4875.akpm@linux-foundation.org> <20070301183445.GA7911@amitarora.in.ibm.com> <20070316143101.GA10152@amitarora.in.ibm.com> <20070316161704.GE8525@osiris.boeblingen.de.ibm.com> <20070317111036.GC29931@parisc-linux.org> <20070321120425.GA27273@amitarora.in.ibm.com> <20070329115126.GB7374@amitarora.in.ibm.com> <20070329101010.7a2b8783.akpm@linux-foundation.org> <20070330071929.GC8365@osiris.boeblingen.de.ibm.com> <17932.54606.323431.491736@cargo.ozlabs.ibm.com> <20070330104449.GA9371@lazybastard.org> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Heiko Carstens , Andrew Morton , "Amit K. Arora" , torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org, xfs@oss.sgi.com, suparna@in.ibm.com, cmm@us.ibm.com To: =?utf-8?B?SsO2cm4=?= Engel Return-path: In-Reply-To: <20070330104449.GA9371@lazybastard.org> Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org J=F6rn Engel writes: > Wouldn't that work be confined to fallocate()? If I understand Heiko > correctly, the alternative would slow s390 down for every syscall, > including more performance-critical ones. The alternative that Jakub suggested wouldn't slow s390 down. Paul. - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel= " in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: with ECARTIS (v1.0.0; list xfs); Mon, 09 Apr 2007 08:36:35 -0700 (PDT) Received: from ozlabs.org (ozlabs.org [203.10.76.45]) by oss.sgi.com (8.12.10/8.12.10/SuSE Linux 0.7) with ESMTP id l39FaQfB032204 for ; Mon, 9 Apr 2007 08:36:28 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Message-ID: <17946.14646.808334.441833@cargo.ozlabs.ibm.com> Date: Mon, 9 Apr 2007 23:01:42 +1000 From: Paul Mackerras Subject: Re: Interface for the new fallocate() system call In-Reply-To: <20070330104449.GA9371@lazybastard.org> References: <20070225022326.137b4875.akpm@linux-foundation.org> <20070301183445.GA7911@amitarora.in.ibm.com> <20070316143101.GA10152@amitarora.in.ibm.com> <20070316161704.GE8525@osiris.boeblingen.de.ibm.com> <20070317111036.GC29931@parisc-linux.org> <20070321120425.GA27273@amitarora.in.ibm.com> <20070329115126.GB7374@amitarora.in.ibm.com> <20070329101010.7a2b8783.akpm@linux-foundation.org> <20070330071929.GC8365@osiris.boeblingen.de.ibm.com> <17932.54606.323431.491736@cargo.ozlabs.ibm.com> <20070330104449.GA9371@lazybastard.org> Content-Transfer-Encoding: 8bit Sender: xfs-bounce@oss.sgi.com Errors-to: xfs-bounce@oss.sgi.com List-Id: xfs To: =?utf-8?B?SsO2cm4=?= Engel Cc: Heiko Carstens , Andrew Morton , "Amit K. Arora" , torvalds@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-ext4@vger.kernel.org, xfs@oss.sgi.com, suparna@in.ibm.com, cmm@us.ibm.com Jörn Engel writes: > Wouldn't that work be confined to fallocate()? If I understand Heiko > correctly, the alternative would slow s390 down for every syscall, > including more performance-critical ones. The alternative that Jakub suggested wouldn't slow s390 down. Paul.