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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 68944C432C3 for ; Fri, 22 Nov 2019 11:26:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3CD5F2070E for ; Fri, 22 Nov 2019 11:26:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574422017; bh=Dy0nQHLC0EG49p21cGnkSnEVhDvhAHZJBiKFNBod/08=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=MCgwWB7d7I5nyls+q1QM/oX5b1rGTJ9DZjBN8/+JjigZQA7lAMjSQn2qar2crPPeq BgAB0i6vLCXyn0REkyn8wSl3kH0Rctt2LK4jKLvgL3DgFafCXerzbkfg5qyCL/Pf3a qR4byBKZDHZAiNmgnjSU4kvDhuoPjlwn70PPWLQk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727962AbfKVKdh (ORCPT ); Fri, 22 Nov 2019 05:33:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:56614 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727960AbfKVKdh (ORCPT ); Fri, 22 Nov 2019 05:33:37 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 14D6720714; Fri, 22 Nov 2019 10:33:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1574418816; bh=Dy0nQHLC0EG49p21cGnkSnEVhDvhAHZJBiKFNBod/08=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=h6jfH/QaTWZ74XsPvbzZ5we3gSRnEgaA/+LILUUCmPwS/heDmpYwphPPBJB4nt3rt ZjHiZantWWxrOi92UGBd/SbmSmu4mExZcRH1Pry3uJBNHQBpWFEWKOz7PH8bBJFEgz VUb4uiz9vNZhCXCrVNpHyqw5HrwoAPa/+oHBpIEQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Nicholas Piggin , Michael Ellerman , Sasha Levin Subject: [PATCH 4.4 060/159] powerpc/64s/hash: Fix stab_rr off by one initialization Date: Fri, 22 Nov 2019 11:27:31 +0100 Message-Id: <20191122100751.286058517@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191122100704.194776704@linuxfoundation.org> References: <20191122100704.194776704@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@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 309027208f7c0..27f00a7c1085f 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -322,7 +322,7 @@ 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