From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from aserp1040.oracle.com (aserp1040.oracle.com [141.146.126.69]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id C904E1A2B03 for ; Tue, 24 Mar 2015 06:09:52 +1100 (AEDT) Date: Mon, 23 Mar 2015 15:09:38 -0400 From: Sowmini Varadhan To: David Miller Subject: Re: Generic IOMMU pooled allocator Message-ID: <20150323190938.GL14061@oracle.com> References: <20150322192726.GB19474@oracle.com> <20150323.122922.887448418154237329.davem@davemloft.net> <20150323165406.GG14061@oracle.com> <20150323.150508.149509757161802782.davem@davemloft.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20150323.150508.149509757161802782.davem@davemloft.net> Cc: aik@au1.ibm.com, aik@ozlabs.ru, anton@au1.ibm.com, paulus@samba.org, sparclinux@vger.kernel.org, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On (03/23/15 15:05), David Miller wrote: > > Why add performance regressions to old machines who already are > suffering too much from all the bloat we are constantly adding to the > kernel? I have no personal opinion on this- it's a matter of choosing whether we want to have some extra baggage in the library to support old hardware, or keep the code lean-and-mean for the future, where the model has changed. I'll let others on this list make the call. --Sowmini