From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C934FA372B for ; Wed, 16 Oct 2019 16:24:11 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id D6B3A2168B for ; Wed, 16 Oct 2019 16:24:10 +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="baeRmgMA" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D6B3A2168B 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 59BEF8E0001; Wed, 16 Oct 2019 12:24:09 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 537128E000C; Wed, 16 Oct 2019 12:24:09 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 277858E0007; Wed, 16 Oct 2019 12:24:09 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0243.hostedemail.com [216.40.44.243]) by kanga.kvack.org (Postfix) with ESMTP id ECDE98E0001 for ; Wed, 16 Oct 2019 12:24:08 -0400 (EDT) Received: from smtpin05.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with SMTP id 8C5F018446BCC for ; Wed, 16 Oct 2019 16:24:08 +0000 (UTC) X-FDA: 76050169776.05.fruit43_6f0958b7ee2a X-HE-Tag: fruit43_6f0958b7ee2a X-Filterd-Recvd-Size: 5027 Received: from smtprelay-out1.synopsys.com (us03-smtprelay2.synopsys.com [149.117.87.133]) by imf33.hostedemail.com (Postfix) with ESMTP for ; Wed, 16 Oct 2019 16:24:07 +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 F047AC2FFE; Wed, 16 Oct 2019 16:24:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1571243046; bh=Gl7iBE75XELfcNREiXW7mW3FbQ2SBGxgIlhfE4i/THg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=baeRmgMAmW6WkrxQQwh5Dss5cDho+NCZTIh3/kYQRbrxlbQYYnCUUV80yWxL8H0/J d8S/+J4HEECuH3MYrxLV3pLeXtFD2JAUzjKXRvkqpR/X4ELMr8iZQybIMuZJbfISoU iYwc+C4D5EK2JAJCd6KzB8JDePUK8wMRzY9R8XETXrHXN5yWuv/NrWfQWSpI07SIb8 FFsQbN91Ji3gM6rKELHHpn8xKwzA75fK4dHpzqsBL+63tL9Vib6YfAy73KDK37y6I6 GdvkF1GFwFMjJDNf9UwRYVDgSpTAfZKa3g1yzHgAoE/wea/kEl/gYA1Yws5pa3mMwL LRMDu/phyxaNg== 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 6A909A007A; Wed, 16 Oct 2019 16:24:04 +0000 (UTC) From: Vineet Gupta To: linux-mm@kvack.org Cc: linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, Arnd Bergmann , Will Deacon , "Aneesh Kumar K . V" , Andrew Morton , Nick Piggin , Peter Zijlstra , "Kirill A . Shutemov" , Linus Torvalds , Vineet Gupta Subject: [PATCH v3 2/5] asm-generic/tlb: stub out pud_free_tlb() if nopud ... Date: Wed, 16 Oct 2019 09:23:57 -0700 Message-Id: <20191016162400.14796-3-vgupta@synopsys.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191016162400.14796-1-vgupta@synopsys.com> References: <20191016162400.14796-1-vgupta@synopsys.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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_4LEVEL_HACK This came up when removing __ARCH_HAS_5LEVEL_HACK for ARC as code bloat. With this patch we see the following code reduction | bloat-o-meter2 vmlinux-B-elide-ARCH_USE_5LEVEL_HACK vmlinux-C-elide-pud= _free_tlb | add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-104 (-104) | function old new delta | free_pgd_range 656 552 -104 | Total: Before=3D4137276, After=3D4137172, chg -1.000000% Note: The primary change is alternate defintion for pud_free_tlb() but while there also removed empty stubs for __pud_free_tlb, which is anyhow called only from pud_free_tlb() Acked-by: Kirill A. Shutemov Acked-by: Linus Torvalds Signed-off-by: Vineet Gupta --- include/asm-generic/4level-fixup.h | 1 - include/asm-generic/pgtable-nopud.h | 2 +- include/asm-generic/tlb.h | 2 -- 3 files changed, 1 insertion(+), 4 deletions(-) diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4le= vel-fixup.h index e3667c9a33a5..c86cf7cb4bba 100644 --- a/include/asm-generic/4level-fixup.h +++ b/include/asm-generic/4level-fixup.h @@ -30,7 +30,6 @@ #undef pud_free_tlb #define pud_free_tlb(tlb, x, addr) do { } while (0) #define pud_free(mm, x) do { } while (0) -#define __pud_free_tlb(tlb, x, addr) do { } while (0) =20 #undef pud_addr_end #define pud_addr_end(addr, end) (end) diff --git a/include/asm-generic/pgtable-nopud.h b/include/asm-generic/pg= table-nopud.h index c77a1d301155..d3776cb494c0 100644 --- a/include/asm-generic/pgtable-nopud.h +++ b/include/asm-generic/pgtable-nopud.h @@ -59,7 +59,7 @@ static inline pud_t *pud_offset(p4d_t *p4d, unsigned lo= ng address) */ #define pud_alloc_one(mm, address) NULL #define pud_free(mm, x) do { } while (0) -#define __pud_free_tlb(tlb, x, a) do { } while (0) +#define pud_free_tlb(tlb, x, a) do { } while (0) =20 #undef pud_addr_end #define pud_addr_end(addr, end) (end) diff --git a/include/asm-generic/tlb.h b/include/asm-generic/tlb.h index 04c0644006fd..5e0c2d01e656 100644 --- a/include/asm-generic/tlb.h +++ b/include/asm-generic/tlb.h @@ -584,7 +584,6 @@ static inline void tlb_end_vma(struct mmu_gather *tlb= , struct vm_area_struct *vm } while (0) #endif =20 -#ifndef __ARCH_HAS_4LEVEL_HACK #ifndef pud_free_tlb #define pud_free_tlb(tlb, pudp, address) \ do { \ @@ -594,7 +593,6 @@ static inline void tlb_end_vma(struct mmu_gather *tlb= , struct vm_area_struct *vm __pud_free_tlb(tlb, pudp, address); \ } while (0) #endif -#endif =20 #ifndef __ARCH_HAS_5LEVEL_HACK #ifndef p4d_free_tlb --=20 2.20.1