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=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 213FDC43331 for ; Sun, 10 Nov 2019 03:16:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E117320854 for ; Sun, 10 Nov 2019 03:16:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573355800; bh=A3cExw9CqJgzdtqRXjlxgfhaTlG665RQFAEildQhG8M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=LK/bWQ7Niqxyn2wfJBWPUDLZJ8SNs9BG/CTQ0LUZ+sGvuryCh+M/KqmcxX/eo2622 fe2iBofY8I9o5aeEgWcGjjsIKcsmt37657tJqjKSsAfIn9aWrs5H9n2IEL7QL1isAL Gm6j7uDrYUzpFWxoUdK48PXK6DWDS79TWk+271X4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727126AbfKJDQi (ORCPT ); Sat, 9 Nov 2019 22:16:38 -0500 Received: from mail.kernel.org ([198.145.29.99]:34426 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727108AbfKJCkw (ORCPT ); Sat, 9 Nov 2019 21:40:52 -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 30773215EA; Sun, 10 Nov 2019 02:40:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573353651; bh=A3cExw9CqJgzdtqRXjlxgfhaTlG665RQFAEildQhG8M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Y5tO56TKNw7ugYAGN3t64/4wf3RzO5uSc0WxSLehrxIr1XSHus7L2cwFJ0KSJNKPF 9RN6o+wx2j6VOBxHWDrQ/Lt+kBO5Q54gs70kvjtv2d5YTpNpsX2RB+9f2vdMjO8itP 0vmlCUNLHEQfqRYDu0u/mVBeTHTm0CSouzRKaMI4= 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 4.19 028/191] powerpc/64s/hash: Fix stab_rr off by one initialization Date: Sat, 9 Nov 2019 21:37:30 -0500 Message-Id: <20191110024013.29782-28-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191110024013.29782-1-sashal@kernel.org> References: <20191110024013.29782-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore 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 9f574e59d1786..2f162c6e52d4f 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -355,7 +355,7 @@ 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