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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 CA63BC43331 for ; Sun, 10 Nov 2019 02:48:56 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9937922583 for ; Sun, 10 Nov 2019 02:48:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573354136; bh=iwRWbDProyYvqoWQb+Dd2CWpBQbyunJ8/Hs4YVIOTCw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=E4j/JUi7jPK/o6WX9da3PrrEdX1tBykarld6m9hZCIRD/joSmZ45WvWt8FTDZEOI7 iQFFmKYWmOI7VyXGeD3SB7gpWvYXvyGyB8nIYYHD4HEjKoW2/Y5DNHUBN9HrVSimXs v2tNl4Lo3xvfdCUe1HbtSVNTLK0dAYrE9i6wMhDQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729367AbfKJCsz (ORCPT ); Sat, 9 Nov 2019 21:48:55 -0500 Received: from mail.kernel.org ([198.145.29.99]:56870 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726811AbfKJCsy (ORCPT ); Sat, 9 Nov 2019 21:48:54 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3BAA422581; Sun, 10 Nov 2019 02:48:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573354133; bh=iwRWbDProyYvqoWQb+Dd2CWpBQbyunJ8/Hs4YVIOTCw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PF3CnHpwbhRUZqiJhzhAtQbPNBJ2Kg9/aVqFqEo4VcQH/kIXPnjg4y0O8snqhnN0b kleHJV4IJO8BnwKEhnTIksR7wxrFEVfXMoeZos8djI3OQvLo5EgWaZOVD+qVebt42h fl9NIu3OwSff2FHUVhyvWoFi3qK/bThnomHQm0y8= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Nicholas Piggin , Michael Ellerman , Sasha Levin , linuxppc-dev@lists.ozlabs.org Subject: [PATCH AUTOSEL 4.9 05/66] powerpc/64s/hash: Fix stab_rr off by one initialization Date: Sat, 9 Nov 2019 21:47:44 -0500 Message-Id: <20191110024846.32598-5-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191110024846.32598-1-sashal@kernel.org> References: <20191110024846.32598-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Nicholas Piggin [ Upstream commit 09b4438db13fa83b6219aee5993711a2aa2a0c64 ] This causes SLB alloation to start 1 beyond the start of the SLB. There is no real problem because after it wraps it stats behaving properly, it's just surprisig to see when looking at SLB traces. Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin --- arch/powerpc/mm/slb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c index 64c9a91773af4..96c41b55b106b 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -321,7 +321,7 @@ void slb_initialize(void) #endif } - get_paca()->stab_rr = SLB_NUM_BOLTED; + get_paca()->stab_rr = SLB_NUM_BOLTED - 1; lflags = SLB_VSID_KERNEL | linear_llp; vflags = SLB_VSID_KERNEL | vmalloc_llp; -- 2.20.1