From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Subject: Re: [PATCH v3 1/1] eal/linux: change hugepage sorting to
 avoid overlapping memcpy
Date: Thu, 7 Jan 2016 09:51:35 +0000
Message-ID: <568E3527.2080302@intel.com>
References: <55EEEF99.2000708@intel.com>
 <1451986625-16645-1-git-send-email-ralf.hoffmann@allegro-packets.com>
 <1451986625-16645-2-git-send-email-ralf.hoffmann@allegro-packets.com>
 <568E3103.9060707@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Cc: dev@dpdk.org
To: Ralf Hoffmann <ralf.hoffmann@allegro-packets.com>
Return-path: <dev-bounces@dpdk.org>
Received: from mga09.intel.com (mga09.intel.com [134.134.136.24])
 by dpdk.org (Postfix) with ESMTP id 2079E9587
 for <dev@dpdk.org>; Thu,  7 Jan 2016 10:51:57 +0100 (CET)
In-Reply-To: <568E3103.9060707@intel.com>
List-Id: patches and discussions about DPDK <dev.dpdk.org>
List-Unsubscribe: <http://dpdk.org/ml/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://dpdk.org/ml/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <http://dpdk.org/ml/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org
Sender: "dev" <dev-bounces@dpdk.org>

On 07/01/2016 09:33, Sergio Gonzalez Monroy wrote:
> On 05/01/2016 09:37, Ralf Hoffmann wrote:
>> with only one hugepage or already sorted hugepage addresses, the sort
>> function called memcpy with same src and dst pointer. Debugging with
>> valgrind will issue a warning about overlapping area. This patch
>> changes the sort method to qsort to avoid this behavior, according to
>> original patch from Jay Rolette <rolette@infiniteio.com>. The separate
>> sort function is no longer necessary.
>>
>> Signed-off-by: Ralf Hoffmann <ralf.hoffmann@allegro-packets.com>
>> ---
>>
> Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Forgot to mention that there is a checkpatch warning:
WARNING:LONG_LINE: line over 90 characters
#113: FILE: lib/librte_eal/linuxapp/eal/eal_memory.c:1167:
+               qsort(&tmp_hp[hp_offset], hpi->num_pages[0], 
sizeof(struct hugepage_file), cmp_physaddr);

Could you fix that Ralf?

Thanks,
Sergio