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=-3.0 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FSL_HELO_FAKE,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 DFC00C3F2C2 for ; Thu, 27 Feb 2020 21:53:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id AC5DE246A2 for ; Thu, 27 Feb 2020 21:53:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1582840384; bh=lmuF2usYvPwgBiy7m/ddx0T0+Q46dPbQkAUTaKMr60c=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=M1obivX/U70AWpydaC08XYSCPx6bPvZxXDdfHJb8u1gGi2gF7TYIKLcQv2S8ipPjN GxTEwEHohuqI9zRBPDf5aJhgWIlGum9qLipuWzwnr7o1+NsnI6AFW7h1HgWpBhHT/a mw9HhLWrf7tLJ8oMjiAKGtc5XAmWG9vspTxAJ2DE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730085AbgB0VxD (ORCPT ); Thu, 27 Feb 2020 16:53:03 -0500 Received: from mail-pj1-f66.google.com ([209.85.216.66]:35902 "EHLO mail-pj1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729661AbgB0VxD (ORCPT ); Thu, 27 Feb 2020 16:53:03 -0500 Received: by mail-pj1-f66.google.com with SMTP id gv17so364788pjb.1 for ; Thu, 27 Feb 2020 13:53:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=a8tz7pn6WYS1zSkKOSE65k1PsuDxpcFOThMRyfGsXzE=; b=MfQRdUQKcxxCrSC/WgIvIRxxrgpxV4pEVJPD3KSrjnKCyYy1DtH9YuIfwvrtkZ0rkk e4esIL0/td3cexwfwTcB+MjGYmUdyP2PENKFZHJXLbZ8P5sU2fQUWPMaAQNctsOmX/dn AGGGt2bWXaZ764Yldgf2q8QPMh3XvoJ+g+TgeVups/3GdaMKbXMo0HgCmxzqY1FTvObw ZS21j2nQUsw3IBJ/8oLQ0Ft4UE0vlIXUbL8hA6mFMLKAUbJi+Q1PvnSb6F7+9CIIG1yA n6d796AOcxL/rwXWH4RzSJPusTkXOFxW3IfwCAkvkkeZes83mGpiJDZkhS5JoMG+7JAG GIzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:from:to:cc:subject:message-id :references:mime-version:content-disposition:in-reply-to:user-agent; bh=a8tz7pn6WYS1zSkKOSE65k1PsuDxpcFOThMRyfGsXzE=; b=rZ7qtIAwYBMTWyB3wE1zBPEazhnEkkeoOETMymv3TmGvLU3aBX4OVrG1oaHKxxEwx8 VlNmci7FKfYa4zEw35U7+tfs2ROA/0iUqyZeAhDXQJbtMzijlSUA44EgvB/7WmDNXEVx i4r8BdK/0mJbKpWsHN3//d/9wQP25inTPOk0l4ZRQFNxRmQcsakDffsEb072e9tbu5aU NqAynBKn9t4Oneohzdq1z5W+QedSzC9W0D1TqT0WGLNU2tbHQBg+T8EC8/6cSMnPUTZJ 1apJkIPvHkyvuM+vujRVYgC+dOaKFajsa7B0vjHrLsx89PUkSIYfuNgMdt0Ay01IgkKS yRrw== X-Gm-Message-State: APjAAAWin7lT/HT0/sCUuHcB9ygafI+dMvv35IRJ1qQcdCzYRQrsNULc VRCDVqcZ2l+IwIrlH8qPEMc= X-Google-Smtp-Source: APXvYqyBBSbhpwNl/y+B0CAz1QiXE9Xx9EaqVrkHv47pjZ+aPpztqa7IRVjA8W5qXes4DslEDVWfpw== X-Received: by 2002:a17:902:b718:: with SMTP id d24mr896192pls.80.1582840382216; Thu, 27 Feb 2020 13:53:02 -0800 (PST) Received: from google.com ([2620:15c:211:1:3e01:2939:5992:52da]) by smtp.gmail.com with ESMTPSA id d4sm7399843pjg.19.2020.02.27.13.53.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Feb 2020 13:53:01 -0800 (PST) Date: Thu, 27 Feb 2020 13:52:59 -0800 From: Minchan Kim To: Jules Irenge Cc: linux-kernel@vger.kernel.org, boqun.feng@gmail.com, Nitin Gupta , Sergey Senozhatsky , Andrew Morton , "open list:ZSMALLOC COMPRESSED SLAB MEMORY ALLOCATOR" Subject: Re: [PATCH 10/30] mm/zsmalloc: Add missing annotation for migrate_read_lock() Message-ID: <20200227215259.GC215068@google.com> References: <0/30> <20200214204741.94112-1-jbi.octave@gmail.com> <20200214204741.94112-11-jbi.octave@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200214204741.94112-11-jbi.octave@gmail.com> User-Agent: Mutt/1.12.2 (2019-09-21) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Feb 14, 2020 at 08:47:21PM +0000, Jules Irenge wrote: > Sparse reports a warning at migrate_read_lock()() > > warning: context imbalance in migrate_read_lock() - wrong count at exit > > The root cause is the missing annotation at migrate_read_lock() > Add the missing __acquires(&zspage->lock) annotation > > Signed-off-by: Jules Irenge Acked-by: Minchan Kim