From patchwork Tue Oct 15 19:19:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Vineet Gupta X-Patchwork-Id: 11191557 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 E7C1D14E5 for ; Tue, 15 Oct 2019 19:19:38 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id B52EC20872 for ; Tue, 15 Oct 2019 19:19:38 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="Z2FrSaF+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B52EC20872 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=synopsys.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id EB6048E0007; Tue, 15 Oct 2019 15:19:33 -0400 (EDT) Delivered-To: linux-mm-outgoing@kvack.org Received: by kanga.kvack.org (Postfix, from userid 40) id CE4D68E0009; Tue, 15 Oct 2019 15:19:33 -0400 (EDT) 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 A729D8E0006; Tue, 15 Oct 2019 15:19:33 -0400 (EDT) X-Original-To: linux-mm@kvack.org X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0045.hostedemail.com [216.40.44.45]) by kanga.kvack.org (Postfix) with ESMTP id 733558E0007 for ; Tue, 15 Oct 2019 15:19:33 -0400 (EDT) Received: from smtpin08.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay03.hostedemail.com (Postfix) with SMTP id 09C1082D433F for ; Tue, 15 Oct 2019 19:19:33 +0000 (UTC) X-FDA: 76046983026.08.war75_190ce7f58dc0c X-Spam-Summary: 2,0,0,8f8c8b9f6a1dc618,d41d8cd98f00b204,vineet.gupta1@synopsys.com,:arnd@arndb.de:will@kernel.org:aneesh.kumar@linux.ibm.com:akpm@linux-foundation.org:npiggin@gmail.com:peterz@infradead.org:kirill.shutemov@linux.intel.com:torvalds@linux-foundation.org::linux-snps-arc@lists.infradead.org:linux-kernel@vger.kernel.org:linux-arch@vger.kernel.org:vineet.gupta1@synopsys.com,RULES_HIT:41:355:379:541:800:960:965:966:968:973:988:989:1260:1261:1311:1314:1345:1359:1437:1515:1534:1542:1711:1730:1747:1777:1792:1801:1978:1981:2194:2196:2199:2200:2393:2559:2562:3138:3139:3140:3141:3142:3353:3866:3870:4250:4321:4385:4390:4395:4605:5007:6119:6261:6653:7208:7903:8784:9113:9121:10004:11026:11473:11658:11914:12043:12048:12296:12297:12438:12517:12519:12555:12895:13141:13230:13894:14181:14394:14721:21080:21451:21611:21627:30003:30012:30054,0,RBL:198.182.47.102:@synopsys.com:.lbl8.mailshell.net-62.2.0.100 64.100.201.201,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,M SF:not b X-HE-Tag: war75_190ce7f58dc0c X-Filterd-Recvd-Size: 4723 Received: from smtprelay-out1.synopsys.com (smtprelay-out1.synopsys.com [198.182.47.102]) by imf45.hostedemail.com (Postfix) with ESMTP for ; Tue, 15 Oct 2019 19:19:31 +0000 (UTC) Received: from mailhost.synopsys.com (dc8-mailhost1.synopsys.com [10.13.135.209]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id E1FD4C0C2C; Tue, 15 Oct 2019 19:19:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1571167170; bh=FwGil6fsR4diFmu7wiP5EEdJfatzpf6Ih9a6ruv//bg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Z2FrSaF+FvK/6sZ1mrXBEkUj12QWVdGbO1TDNY/Tu5gDjQcKsBIQreEuTKuqpMm2l kK657CODi2afK5wyks5wt2aCqqMH9B5lAIyq3AJIw2eEQ99RyqweuOj5VccBNddPlP e01veCKaExhVS/FXqnAgByCCW6tlNQlglTXyUHX5XpXC84SKoNAwT5gIFd9LqKEEzs wL8lVlt3g7VyA+dM8Nh0cyDQ8vZvzl40IpSe5kzjNAuEnn8TG02VnAgF8JogwKgbjw qjiOFEMuFqlQpFyGDzia4UpX+v5fkCGdnm5d3Gvd9PiBmB2kHCv79Gu2xmdV01C/ie 24xbizNw/eJww== Received: from vineetg-Latitude-E7450.internal.synopsys.com (vineetg-latitude-e7450.internal.synopsys.com [10.10.161.61]) by mailhost.synopsys.com (Postfix) with ESMTP id 3DDC9A0078; Tue, 15 Oct 2019 19:19:29 +0000 (UTC) From: Vineet Gupta To: Arnd Bergmann , Will Deacon , "Aneesh Kumar K . V" , Andrew Morton , Nick Piggin , Peter Zijlstra , "Kirill A . Shutemov" , Linus Torvalds Cc: linux-mm@kvack.org, linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Vineet Gupta Subject: [PATCH v2 3/5] asm-generic/tlb: stub out p4d_free_tlb() if nop4d ... Date: Tue, 15 Oct 2019 12:19:24 -0700 Message-Id: <20191015191926.9281-4-vgupta@synopsys.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191015191926.9281-1-vgupta@synopsys.com> References: <20191015191926.9281-1-vgupta@synopsys.com> 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: ... independent of __ARCH_HAS_5LEVEL_HACK This came up when removing __ARCH_HAS_5LEVEL_HACK for ARC as code bloat from this routine not required in a 2-level paging setup | bloat-o-meter2 vmlinux-C-elide-pud_free_tlb vmlinux-D-elide-p4d_free_tlb | add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-104 (-104) | function old new delta | free_pgd_range 552 422 -130 | Total: Before=4137172, After=4137042, chg -1.000000% Signed-off-by: Vineet Gupta --- include/asm-generic/5level-fixup.h | 1 - include/asm-generic/pgtable-nop4d.h | 2 +- include/asm-generic/tlb.h | 2 -- 3 files changed, 1 insertion(+), 4 deletions(-) diff --git a/include/asm-generic/5level-fixup.h b/include/asm-generic/5level-fixup.h index f6947da70d71..4c74b1c1d13b 100644 --- a/include/asm-generic/5level-fixup.h +++ b/include/asm-generic/5level-fixup.h @@ -51,7 +51,6 @@ static inline int p4d_present(p4d_t p4d) #undef p4d_free_tlb #define p4d_free_tlb(tlb, x, addr) do { } while (0) #define p4d_free(mm, x) do { } while (0) -#define __p4d_free_tlb(tlb, x, addr) do { } while (0) #undef p4d_addr_end #define p4d_addr_end(addr, end) (end) diff --git a/include/asm-generic/pgtable-nop4d.h b/include/asm-generic/pgtable-nop4d.h index aebab905e6cd..ce2cbb3c380f 100644 --- a/include/asm-generic/pgtable-nop4d.h +++ b/include/asm-generic/pgtable-nop4d.h @@ -50,7 +50,7 @@ static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address) */ #define p4d_alloc_one(mm, address) NULL #define p4d_free(mm, x) do { } while (0) -#define __p4d_free_tlb(tlb, x, a) do { } while (0) +#define p4d_free_tlb(tlb, x, a) do { } while (0) #undef p4d_addr_end #define p4d_addr_end(addr, end) (end) diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 5e0c2d01e656..05dddc17522b 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -594,7 +594,6 @@ static inline void tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vm } while (0) #endif -#ifndef __ARCH_HAS_5LEVEL_HACK #ifndef p4d_free_tlb #define p4d_free_tlb(tlb, pudp, address) \ do { \ @@ -603,7 +602,6 @@ static inline void tlb_end_vma(struct mmu_gather *tlb, struct vm_area_struct *vm __p4d_free_tlb(tlb, pudp, address); \ } while (0) #endif -#endif #endif /* CONFIG_MMU */