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 1738DC43331 for ; Sun, 10 Nov 2019 02:53:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D0C6022581 for ; Sun, 10 Nov 2019 02:53:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573354434; bh=Dy0nQHLC0EG49p21cGnkSnEVhDvhAHZJBiKFNBod/08=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=cra4QLw+LMRcgvCl34v/wbwG1xu16dsVVfViTbs9Y29XXoRAlXkR0mMruGz/f0N6V Wn0eOxHSrQ+eUof1bWuPMwi3i6ay+x5YECzCk8jLy5gMLAgfqIRdDxwN2ISm8yVplE SpiNxNXB1/qJn1iDi/viVuMlgyzDPil86m5tJAeo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729864AbfKJCvC (ORCPT ); Sat, 9 Nov 2019 21:51:02 -0500 Received: from mail.kernel.org ([198.145.29.99]:34494 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728726AbfKJCul (ORCPT ); Sat, 9 Nov 2019 21:50:41 -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 D72A622583; Sun, 10 Nov 2019 02:50:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573354240; bh=Dy0nQHLC0EG49p21cGnkSnEVhDvhAHZJBiKFNBod/08=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ZJpSugLXN5G2uPj4yN3XyJm0hTyO8L3e/czfrpfs6oqNqepleeDyg52DvIX4UuYcW MLKIhGXqEkvuiJNotIilkJGSzwQMKQLD1wIJqq6y9ahVAQc5cbapW87X8lTUjt9p8A FZbvx2QvhKcjwbtPiBcQxrJPxz5yAYBBcAiujh1Q= 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 4.4 05/40] powerpc/64s/hash: Fix stab_rr off by one initialization Date: Sat, 9 Nov 2019 21:49:57 -0500 Message-Id: <20191110025032.827-5-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191110025032.827-1-sashal@kernel.org> References: <20191110025032.827-1-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 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