From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:54948 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726585AbeLKFnS (ORCPT ); Tue, 11 Dec 2018 00:43:18 -0500 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wBB5cvRZ130363 for ; Tue, 11 Dec 2018 00:43:17 -0500 Received: from e06smtp01.uk.ibm.com (e06smtp01.uk.ibm.com [195.75.94.97]) by mx0a-001b2d01.pphosted.com with ESMTP id 2pa410f0kb-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 11 Dec 2018 00:43:17 -0500 Received: from localhost by e06smtp01.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Tue, 11 Dec 2018 05:43:15 -0000 From: "Aneesh Kumar K.V" Subject: Re: [PATCH 13/18] asm-generic/tlb: Introduce HAVE_MMU_GATHER_NO_GATHER In-Reply-To: <20180926114801.199256189@infradead.org> References: <20180926113623.863696043@infradead.org> <20180926114801.199256189@infradead.org> Date: Tue, 11 Dec 2018 11:13:04 +0530 MIME-Version: 1.0 Content-Type: text/plain Message-ID: <87zhtcsjo7.fsf@linux.ibm.com> Sender: linux-arch-owner@vger.kernel.org List-ID: To: Peter Zijlstra , will.deacon@arm.com, aneesh.kumar@linux.vnet.ibm.com, akpm@linux-foundation.org, npiggin@gmail.com Cc: linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux@armlinux.org.uk, heiko.carstens@de.ibm.com, riel@surriel.com, Linus Torvalds , Martin Schwidefsky Message-ID: <20181211054304.vGHDbhFLkhlsO76YfQNdfBBTt90MjCLA52cdUJG45aI@z> Peter Zijlstra writes: > From: Martin Schwidefsky > > Add the Kconfig option HAVE_MMU_GATHER_NO_GATHER to the generic > mmu_gather code. If the option is set the mmu_gather will not > track individual pages for delayed page free anymore. A platform > that enables the option needs to provide its own implementation > of the __tlb_remove_page_size function to free pages. Can we rename this to HAVE_NO_BATCH_MMU_GATHER? > > Cc: npiggin@gmail.com > Cc: heiko.carstens@de.ibm.com > Cc: will.deacon@arm.com > Cc: aneesh.kumar@linux.vnet.ibm.com > Cc: akpm@linux-foundation.org > Cc: Linus Torvalds > Cc: linux@armlinux.org.uk > Signed-off-by: Martin Schwidefsky > Signed-off-by: Peter Zijlstra (Intel) > Link: http://lkml.kernel.org/r/20180918125151.31744-2-schwidefsky@de.ibm.com -aneesh