From patchwork Wed Dec 11 12:07:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Zijlstra X-Patchwork-Id: 11284901 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 20FE8139A for ; Wed, 11 Dec 2019 12:52:39 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id CA6D12173E for ; Wed, 11 Dec 2019 12:52:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="ToapP2ql" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CA6D12173E Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 270856B3218; Wed, 11 Dec 2019 07:52:38 -0500 (EST) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id 248C46B3219; Wed, 11 Dec 2019 07:52:38 -0500 (EST) X-Original-To: int-list-linux-mm@kvack.org X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 15D606B321A; Wed, 11 Dec 2019 07:52:38 -0500 (EST) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0230.hostedemail.com [216.40.44.230]) by kanga.kvack.org (Postfix) with ESMTP id F3E076B3218 for ; Wed, 11 Dec 2019 07:52:37 -0500 (EST) Received: from smtpin29.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with SMTP id A91062C12 for ; Wed, 11 Dec 2019 12:52:37 +0000 (UTC) X-FDA: 76252849554.29.use38_6e2b261a4891d X-Spam-Summary: 2,0,0,d03c09dcac835f39,d41d8cd98f00b204,peterz@infradead.org,:will@kernel.org:aneesh.kumar@linux.ibm.com:akpm@linux-foundation.org:npiggin@gmail.com:peterz@infradead.org:linux-arch@vger.kernel.org::linux-kernel@vger.kernel.org:ysato@users.sourceforge.jp:dalias@libc.org:davem@davemloft.net:deller@gmx.de:geert@linux-m68k.org:paulburton@kernel.org:tony.luck@intel.com:rth@twiddle.net:nickhu@andestech.com:paul.walmsley@sifive.com,RULES_HIT:41:152:355:379:800:960:966:968:973:988:989:1183:1260:1261:1277:1313:1314:1345:1431:1437:1516:1518:1535:1543:1593:1594:1711:1730:1747:1777:1792:1978:1981:2194:2196:2199:2200:2393:2559:2562:2693:3138:3139:3140:3141:3142:3354:3865:3866:3867:3870:3871:3872:3874:4117:4250:4385:4605:5007:6119:6261:6653:6742:8634:10004:10400:11026:11473:11658:11914:12043:12048:12114:12296:12297:12438:12517:12519:14181:14394:14659:14721:21080:21451:21627:21740:21990:30054:30055:30070,0,RBL:error,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache :0,MSF:n X-HE-Tag: use38_6e2b261a4891d X-Filterd-Recvd-Size: 6191 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf42.hostedemail.com (Postfix) with ESMTP for ; Wed, 11 Dec 2019 12:52:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-Id:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=kha1DNRsNJX9wg9pqNRv2AfGj3UZUSQsnrv68oCgIj0=; b=ToapP2qlFGSbItIorKP5sCoHSM Yv+euDU9Y7Y7yxk43M7SLRy9A4z9BFDWddAnZJWoizRRhswezDlHNRd0DolNbPDM7U0P3wcydTSBK oyT9bRlG5cK6Y+vkBIFxXCaaEyhxXCmVR5BPsueaEPvpHCLl2AgPxGN718ZQ0sjVaq1BQfLW3Spvu 1TTaJFwhZsUD19UiLLA2T9O4AMWBGx+ANbTUgKVW9Z4NVm7eObFzyPIAbZx+rgC7ikj6/sMybRYJ2 d+pXmIrAesnXvzL6vN3/VsXP5OKYhpG10XnpIwXcEfpe9diDY3ysEFw38AOvQPLYW65Pj1Sg/SNDY /J8spJeg==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1if18z-0001PN-U7; Wed, 11 Dec 2019 12:31:06 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id BB13A30606A; Wed, 11 Dec 2019 13:29:43 +0100 (CET) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id 3478520137CAE; Wed, 11 Dec 2019 13:31:02 +0100 (CET) Message-Id: <20191211122956.055418242@infradead.org> User-Agent: quilt/0.65 Date: Wed, 11 Dec 2019 13:07:20 +0100 From: Peter Zijlstra To: Will Deacon , "Aneesh Kumar K.V" , Andrew Morton , Nick Piggin , Peter Zijlstra Cc: linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Yoshinori Sato , Rich Felker , "David S. Miller" , Helge Deller , Geert Uytterhoeven , Paul Burton , Tony Luck , Richard Henderson , Nick Hu , Paul Walmsley Subject: [PATCH 07/17] asm-generic/tlb: Rename HAVE_MMU_GATHER_NO_GATHER References: <20191211120713.360281197@infradead.org> MIME-Version: 1.0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Towards a more consistent naming scheme. Signed-off-by: Peter Zijlstra (Intel) --- arch/Kconfig | 2 +- arch/s390/Kconfig | 2 +- include/asm-generic/tlb.h | 14 ++++++++++++-- mm/mmu_gather.c | 10 +++++----- 4 files changed, 19 insertions(+), 9 deletions(-) --- a/arch/Kconfig +++ b/arch/Kconfig @@ -406,7 +406,7 @@ config MMU_GATHER_PAGE_SIZE config MMU_GATHER_NO_RANGE bool -config HAVE_MMU_GATHER_NO_GATHER +config MMU_GATHER_NO_GATHER bool config ARCH_HAVE_NMI_SAFE_CMPXCHG --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -162,7 +162,7 @@ config S390 select HAVE_PERF_USER_STACK_DUMP select HAVE_MEMBLOCK_NODE_MAP select HAVE_MEMBLOCK_PHYS_MAP - select HAVE_MMU_GATHER_NO_GATHER + select MMU_GATHER_NO_GATHER select HAVE_MOD_ARCH_SPECIFIC select HAVE_NOP_MCOUNT select HAVE_OPROFILE --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -147,6 +147,16 @@ * MMU_GATHER_NO_RANGE * * Use this if your architecture lacks an efficient flush_tlb_range(). + * + * MMU_GATHER_NO_GATHER + * + * 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. + * + * This is useful if your architecture already flushes TLB entries in the + * various ptep_get_and_clear() functions. */ #ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE @@ -191,7 +201,7 @@ extern void tlb_remove_table(struct mmu_ #endif -#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER +#ifndef CONFIG_MMU_GATHER_NO_GATHER /* * If we can't allocate a page to make a big batch of page pointers * to work on, then just handle a few from the on-stack structure. @@ -266,7 +276,7 @@ struct mmu_gather { unsigned int batch_count; -#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER +#ifndef CONFIG_MMU_GATHER_NO_GATHER struct mmu_gather_batch *active; struct mmu_gather_batch local; struct page *__pages[MMU_GATHER_BUNDLE]; --- a/mm/mmu_gather.c +++ b/mm/mmu_gather.c @@ -11,7 +11,7 @@ #include #include -#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER +#ifndef CONFIG_MMU_GATHER_NO_GATHER static bool tlb_next_batch(struct mmu_gather *tlb) { @@ -89,7 +89,7 @@ bool __tlb_remove_page_size(struct mmu_g return false; } -#endif /* HAVE_MMU_GATHER_NO_GATHER */ +#endif /* MMU_GATHER_NO_GATHER */ #ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE @@ -180,7 +180,7 @@ static void tlb_flush_mmu_free(struct mm #ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE tlb_table_flush(tlb); #endif -#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER +#ifndef CONFIG_MMU_GATHER_NO_GATHER tlb_batch_pages_flush(tlb); #endif } @@ -211,7 +211,7 @@ void tlb_gather_mmu(struct mmu_gather *t /* Is it from 0 to ~0? */ tlb->fullmm = !(start | (end+1)); -#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER +#ifndef CONFIG_MMU_GATHER_NO_GATHER tlb->need_flush_all = 0; tlb->local.next = NULL; tlb->local.nr = 0; @@ -271,7 +271,7 @@ void tlb_finish_mmu(struct mmu_gather *t tlb_flush_mmu(tlb); -#ifndef CONFIG_HAVE_MMU_GATHER_NO_GATHER +#ifndef CONFIG_MMU_GATHER_NO_GATHER tlb_batch_list_free(tlb); #endif dec_tlb_flush_pending(tlb->mm);