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=-9.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 8F7FEECE58F for ; Tue, 15 Oct 2019 19:19:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 5EC852168B for ; Tue, 15 Oct 2019 19:19:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=synopsys.com header.i=@synopsys.com header.b="ZLSPKlF3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389607AbfJOTTk (ORCPT ); Tue, 15 Oct 2019 15:19:40 -0400 Received: from smtprelay-out1.synopsys.com ([198.182.47.102]:39774 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389573AbfJOTTb (ORCPT ); Tue, 15 Oct 2019 15:19:31 -0400 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 E20F5C0C5D; 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=1571167171; bh=TWgIAs403uWUV0wYIkngd1fRYFF87Lk2XfM7j9v1Avg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZLSPKlF3qsHIMHjNHX42zIg6rv8COLc9ZMJr/pGptVwfRJeIM+xBDW23wXMHCEVNa MdVqy65PrxiOrKXzvojFPr+6dSgi7PY8JlLojB2pZn2bFOb6oCxhtEbQUVqF255oJA LyUfQHIS/UX534EhoNu01ZjN18aS4TmWn5li0jWye2T8VA4ZwTJlRROsxbQfDb9s58 hEWVJ8J8flWGQEjC8bofa3jNnhZqJGTIgoWyod5l+i8d9VOTPKoCldNKBcDxvfvY5Z CKF2IMWPRfD+aRsAVJimGOKOR9SW11l0ER/m6tKSlMXtJQ0gkbkAfkwR6G79h/qHjg Eht8vPO+SeINQ== 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 4C1A7A007D; 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 4/5] asm-generic/tlb: stub out pmd_free_tlb() if nopmd Date: Tue, 15 Oct 2019 12:19:25 -0700 Message-Id: <20191015191926.9281-5-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 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Note that pmd routine folding can be tricky as even in 2-level setup (where pmd is folded) most pmd routines refer to upper levels. This one can surely be elided however. | bloat-o-meter2 vmlinux-E-elide-p?d_clear_bad vmlinux-F-elide-pmd_free_tlb | add/remove: 0/0 grow/shrink: 0/1 up/down: 0/-112 (-112) | function old new delta | free_pgd_range 422 310 -112 | Total: Before=4137042, After=4136930, chg -1.000000% Signed-off-by: Vineet Gupta --- include/asm-generic/pgtable-nopmd.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-generic/pgtable-nopmd.h b/include/asm-generic/pgtable-nopmd.h index b85b8271a73d..0d9b28cba16d 100644 --- a/include/asm-generic/pgtable-nopmd.h +++ b/include/asm-generic/pgtable-nopmd.h @@ -60,7 +60,7 @@ static inline pmd_t * pmd_offset(pud_t * pud, unsigned long address) static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) { } -#define __pmd_free_tlb(tlb, x, a) do { } while (0) +#define pmd_free_tlb(tlb, x, a) do { } while (0) #undef pmd_addr_end #define pmd_addr_end(addr, end) (end) -- 2.20.1