From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Guo, Jia" <jia.guo@intel.com>
Subject: Re: [PATCH V17 3/4] eal/linux: uevent parse and process
Date: Mon, 2 Apr 2018 12:19:52 +0800
Message-ID: <64aec0c7-b455-2a13-8d6b-c55ecb2eecdb@intel.com>
References: <1522063256-3997-5-git-send-email-jia.guo@intel.com>
 <1522339205-27698-1-git-send-email-jia.guo@intel.com>
 <1522339205-27698-4-git-send-email-jia.guo@intel.com>
 <20180329100029.2cbd3c82@xeon-e3>
Mime-Version: 1.0
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
Cc: bruce.richardson@intel.com, ferruh.yigit@intel.com,
 konstantin.ananyev@intel.com, gaetan.rivet@6wind.com, jingjing.wu@intel.com,
 thomas@monjalon.net, motih@mellanox.com, harry.van.haaren@intel.com,
 jianfeng.tan@intel.com, jblunck@infradead.org, shreyansh.jain@nxp.com,
 dev@dpdk.org, helin.zhang@intel.com
To: Stephen Hemminger <stephen@networkplumber.org>
Return-path: <dev-bounces@dpdk.org>
Received: from mga02.intel.com (mga02.intel.com [134.134.136.20])
 by dpdk.org (Postfix) with ESMTP id 2D2106841
 for <dev@dpdk.org>; Mon,  2 Apr 2018 06:19:56 +0200 (CEST)
In-Reply-To: <20180329100029.2cbd3c82@xeon-e3>
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://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: <https://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 3/30/2018 1:00 AM, Stephen Hemminger wrote:
> On Fri, 30 Mar 2018 00:00:04 +0800
> Jeff Guo <jia.guo@intel.com> wrote:
>
>> +dev_uev_monitor_create(int netlink_fd)
>> +{
>> +	struct sockaddr_nl addr;
>> +	int ret;
>> +	int size = 64 * 1024;
>> +	int nonblock = 1;
>> +
>> +	memset(&addr, 0, sizeof(addr));
>> +	addr.nl_family = AF_NETLINK;
>> +	addr.nl_pid = 0;
>> +	addr.nl_groups = 0xffffffff;
>> +
>> +	if (bind(netlink_fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
>> +		RTE_LOG(ERR, EAL, "Failed to bind socket for netlink fd.\n");
>> +		goto err;
>> +	}
>> +
>> +	setsockopt(netlink_fd, SOL_SOCKET, SO_PASSCRED, &size, sizeof(size));
>> +
>> +	ret = ioctl(netlink_fd, FIONBIO, &nonblock);
>> +	if (ret != 0) {
>> +		RTE_LOG(ERR, EAL, "ioctl(FIONBIO) failed.\n");
>> +		goto err;
>> +	}
>> +	return 0;
>> +err:
> You should set close on exec for this fd (with fcntl).
yes, but i have already set it when fd creation time by SOCK_CLOEXEC.