Received: by 2002:a05:6a10:2785:0:0:0:0 with SMTP id ia5csp262972pxb; Thu, 14 Jan 2021 05:29:42 -0800 (PST) X-Google-Smtp-Source: ABdhPJzR2Tf35l2Gzu5i9nqa08unns9z2aEXzyarGmk8aJTn14QZYGA0lsGOSc473yavrVCBENs7 X-Received: by 2002:a05:6402:2070:: with SMTP id bd16mr5439812edb.107.1610630982162; Thu, 14 Jan 2021 05:29:42 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1610630982; cv=none; d=google.com; s=arc-20160816; b=vKQBYKYKpx/hROiDY8e7N7IRG6aUf3qXBXPRGqzy627usAb5CKtcU6F4+pG1KDaK2p mbCx4UHAYgIiPBcbnyo/VozD48hv0O8Gkz09LGOv+65WinqwJHc2vp3dLQ3DmC7C2Oay rGR6NrdigKTYpan09WLPnHeT0FboQiQqXfSMbIW/+FdcoXgrIIpJT7Sy5rjyfMIS5Jh0 mMZwTNFQ5AIDVty6Vvi4FyJMa6rc8YMR6+fkTb5sYja4v7ai9osmD8pD6781Jms7lCvW c/szWWv5NoiSkZIfP616czT7GNwr9/nBRIfZcYWxEgqX2sGVKih1BxPZikR8OffNZ9IE MWjg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=2rqV3Atik93fq6Kwtpsg8uBRgfQnASn9g43Gb5emf70=; b=YJoc0yqHq5VVlOD5vSXBKCV8rBPLZRtOVB10ol/hRkWiY4n/9BwrejG78/EoXIhPK1 cCht6/GHDdDCGMjU4sHMs1y5juo2on1MHwlRu4LzJ1fcPn03hkHqoRYYnKgMQVkgtnt3 l4fxKhhv5KgvhObvqZika+bClblG3+55zy0rqe/aVHzeJjYDouHy6nrzG8ynwD/vIzhm 6t7mwafRpYg1y+XlCUKodEVKzAzwC4Lp40szFKx940rNUQ63aj51vTKHRKQklyh7XxO1 HGIGkLkzl0MmZUtpNXCCaZTikO0t8lelnqZSABslzkuHDCY4vtI8Xuw6aoz/j6ovQoWD DcSw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b=fV682HPH; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=suse.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id o22si2684781edq.400.2021.01.14.05.29.17; Thu, 14 Jan 2021 05:29:42 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@suse.com header.s=susede1 header.b=fV682HPH; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=suse.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728458AbhANN0B (ORCPT + 99 others); Thu, 14 Jan 2021 08:26:01 -0500 Received: from mx2.suse.de ([195.135.220.15]:44760 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726311AbhANN0B (ORCPT ); Thu, 14 Jan 2021 08:26:01 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.com; s=susede1; t=1610630715; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=2rqV3Atik93fq6Kwtpsg8uBRgfQnASn9g43Gb5emf70=; b=fV682HPHB+PH/Cti9KHglz81L4NWt5r5NSXQqzjw08Hh5wLZJK0TG07WaOXkY4WVYXX4za UKo5Ja+wiKsoQNrYC1Q97m4wIcRixPyqI2LYTmVeOXMA3b/dKEOuH509Xv1WPTWCY9HLI2 nEIze4X/lTnwDZs65QNiWReG2vTCB9s= Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 2D6A1ACB0; Thu, 14 Jan 2021 13:25:15 +0000 (UTC) Date: Thu, 14 Jan 2021 14:25:14 +0100 From: Petr Mladek To: John Ogness Cc: Sergey Senozhatsky , Sergey Senozhatsky , Steven Rostedt , linux-kernel@vger.kernel.org Subject: Re: [PATCH] printk: fix kmsg_dump_get_buffer length calulations Message-ID: References: <20210113164413.1599-1-john.ogness@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210113164413.1599-1-john.ogness@linutronix.de> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed 2021-01-13 17:50:13, John Ogness wrote: > kmsg_dump_get_buffer() uses @syslog to determine if the syslog > prefix should be written to the buffer. However, when calculating > the maximum number of records that can fit into the buffer, it > always counts the bytes from the syslog prefix. > > Use @syslog when calculating the maximum number of records that can > fit into the buffer. Another great catch! > Fixes: e2ae715d66bf ("kmsg - kmsg_dump() use iterator to receive log buffer content") > Signed-off-by: John Ogness Reviewed-by: Petr Mladek Best Regards, Petr