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 F3DF0C43331 for ; Sun, 10 Nov 2019 03:05:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id BBFD9215EA for ; Sun, 10 Nov 2019 03:05:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573355145; bh=hf6SbgIk+yIW9m2bRDW1mfmrsZhGzyXJnxMnuBSim6o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=KXDkvAlMkjFsOtQeKoAhAj5QKiAUKCH4khon79pc5QTZGUZlf9L6ASwafui3ynJB+ MIaPih3AEZH868sSHxaSU87nyDefptF9tUDzMfCLgbwvWCtrvU4qkWw/p209NIcCAL ChJNgXclr3fUYlCqHGEbO8gF+ACm5mIrJ9Lf3zLY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729023AbfKJCqS (ORCPT ); Sat, 9 Nov 2019 21:46:18 -0500 Received: from mail.kernel.org ([198.145.29.99]:48484 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728938AbfKJCpz (ORCPT ); Sat, 9 Nov 2019 21:45:55 -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 B2ECD21D7B; Sun, 10 Nov 2019 02:45:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573353955; bh=hf6SbgIk+yIW9m2bRDW1mfmrsZhGzyXJnxMnuBSim6o=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=svMAqWOKWNxPWhHtsfzN+d8yUX651SYa5wZ9upoxvetjcegH+MwHbyCkySGFDymad dr9kNbwc1K9Illg3EEQzNwW0iFj274F5+FU/uU334Hfpv6i/yGcj+AFJd7TejnRqAL 8jkMypsvTWHasDoT8Au1j4Mjuq3utXKzwjiw47nA= 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 4.14 011/109] powerpc/64s/hash: Fix stab_rr off by one initialization Date: Sat, 9 Nov 2019 21:44:03 -0500 Message-Id: <20191110024541.31567-11-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191110024541.31567-1-sashal@kernel.org> References: <20191110024541.31567-1-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 6d9bf014b3e78..2502fe3bfb54a 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -315,7 +315,7 @@ 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