From patchwork Mon Feb 11 19:31:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Waiman Long X-Patchwork-Id: 10806733 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0C6886C2 for ; Mon, 11 Feb 2019 19:31:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EE93E2B093 for ; Mon, 11 Feb 2019 19:31:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E14A42B0A8; Mon, 11 Feb 2019 19:31:54 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 971702B093 for ; Mon, 11 Feb 2019 19:31:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To: References:List-Owner; bh=2iZvGgKLeFahmLXJlZPHxyBkJ2n3iXKLGW5sKppRJgs=; b=NJd WVj2UNftQ87r8EB4NE6hB8jj1AfxfQ1pXqwvzvWbcMEzcahquRfURWaA+Fj2Wum/YYI2WWOIP3Vgk g5/wizfkvebKFtVyLAun9T1Y3AWfoXwYNnmsMuZFTQcUkHbnubG536H1SwTiiWC/UHChsq9juHEGs boNnkPFhcVsSm+K58G6y/YYatwhFG7nxmdNYfQuyXJZLS+K48jNGwpYT0qgmP1U8xjMYnNQTXAR5h 4rr9Kq0ojXCdRd5fASGRSPOI5g74Igu4XoH2R3+DDzYmu8E0J73dKhyPfqumajCiQSVBApMstaFLH 1BQS2ENekzkkXmqeo6yvylxBhGHEIlQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtHJ2-0006BL-Jg; Mon, 11 Feb 2019 19:31:52 +0000 Received: from mx1.redhat.com ([209.132.183.28]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1gtHIy-0006AD-Kk for linux-arm-kernel@lists.infradead.org; Mon, 11 Feb 2019 19:31:51 +0000 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 4BB6BA342F; Mon, 11 Feb 2019 19:31:47 +0000 (UTC) Received: from llong.com (dhcp-17-59.bos.redhat.com [10.18.17.59]) by smtp.corp.redhat.com (Postfix) with ESMTP id AED255C21D; Mon, 11 Feb 2019 19:31:40 +0000 (UTC) From: Waiman Long To: Peter Zijlstra , Ingo Molnar , Will Deacon , Thomas Gleixner Subject: [PATCH v2 0/2] locking/rwsem: Remove arch specific rwsem files Date: Mon, 11 Feb 2019 14:31:24 -0500 Message-Id: <1549913486-16799-1-git-send-email-longman@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Mon, 11 Feb 2019 19:31:47 +0000 (UTC) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190211_113148_707466_0DCF9312 X-CRM114-Status: GOOD ( 13.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, linux-xtensa@linux-xtensa.org, Davidlohr Bueso , linux-ia64@vger.kernel.org, Tim Chen , Arnd Bergmann , linux-sh@vger.kernel.org, linux-hexagon@vger.kernel.org, x86@kernel.org, "H. Peter Anvin" , linux-kernel@vger.kernel.org, Linus Torvalds , Borislav Petkov , linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org, Waiman Long , Andrew Morton , linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP v2: - Add patch 2 to optimize __down_read_trylock() as suggested by PeterZ. - Update performance test data in patch 1. This is part 0 of my rwsem patchset. It just removes the architecture specific files to make it easer to add enhancements in the upcoming rwsem patches. Since the two ll/sc platforms that I can tested on (arm64 & ppc) are both using the generic C codes, the rwsem performance shouldn't be affected by this patch except the down_read_trylock() code which was included in patch 2 for arm64. Waiman Long (2): locking/rwsem: Remove arch specific rwsem files locking/rwsem: Optimize down_read_trylock() MAINTAINERS | 1 - arch/alpha/include/asm/rwsem.h | 211 ----------------------------------- arch/arm/include/asm/Kbuild | 1 - arch/arm64/include/asm/Kbuild | 1 - arch/hexagon/include/asm/Kbuild | 1 - arch/ia64/include/asm/rwsem.h | 172 ----------------------------- arch/powerpc/include/asm/Kbuild | 1 - arch/s390/include/asm/Kbuild | 1 - arch/sh/include/asm/Kbuild | 1 - arch/sparc/include/asm/Kbuild | 1 - arch/x86/include/asm/rwsem.h | 237 ---------------------------------------- arch/x86/lib/Makefile | 1 - arch/x86/lib/rwsem.S | 156 -------------------------- arch/xtensa/include/asm/Kbuild | 1 - include/asm-generic/rwsem.h | 140 ------------------------ include/linux/rwsem.h | 4 +- kernel/locking/percpu-rwsem.c | 2 + kernel/locking/rwsem.h | 130 ++++++++++++++++++++++ 18 files changed, 133 insertions(+), 929 deletions(-) delete mode 100644 arch/alpha/include/asm/rwsem.h delete mode 100644 arch/ia64/include/asm/rwsem.h delete mode 100644 arch/x86/include/asm/rwsem.h delete mode 100644 arch/x86/lib/rwsem.S delete mode 100644 include/asm-generic/rwsem.h