From: Vladimir Oltean <olteanv@gmail.com>
To: Saeed Mahameed <saeed@kernel.org>
Cc: "David S . Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>,
netdev@vger.kernel.org, Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
Cong Wang <xiyou.wangcong@gmail.com>,
Stephen Hemminger <stephen@networkplumber.org>,
Eric Dumazet <edumazet@google.com>,
George McCollister <george.mccollister@gmail.com>,
Oleksij Rempel <o.rempel@pengutronix.de>,
Jay Vosburgh <j.vosburgh@gmail.com>,
Veaceslav Falico <vfalico@gmail.com>,
Andy Gospodarek <andy@greyhouse.net>,
Arnd Bergmann <arnd@arndb.de>, Taehee Yoo <ap420073@gmail.com>,
Jiri Pirko <jiri@resnulli.us>, Florian Westphal <fw@strlen.de>,
Nikolay Aleksandrov <nikolay@nvidia.com>,
Pravin B Shelar <pshelar@ovn.org>,
Sridhar Samudrala <sridhar.samudrala@intel.com>
Subject: Re: [PATCH v6 net-next 03/15] net: procfs: hold netif_lists_lock when retrieving device statistics
Date: Tue, 12 Jan 2021 15:44:10 +0200 [thread overview]
Message-ID: <20210112134410.pr5lqv4hcxe3dxfy@skbuf> (raw)
In-Reply-To: <fa9efc8c4c0cb3dd3b0bba153b4b368e64ff06c3.camel@kernel.org>
On Mon, Jan 11, 2021 at 03:46:32PM -0800, Saeed Mahameed wrote:
> This can be very costly, holding a mutex while traversing the whole
> netedv lists and reading their stats, we need to at least allow
> multiple readers to enter as it was before, so maybe you want to use
> rw_semaphore instead of the mutex.
>
> or just have a unified approach of rcu+refcnt/dev_hold as you did for
> bonding and failover patches #13..#14, I used the same approach to
> achieve the same for sysfs and procfs more than 2 years ago, you are
> welcome to use my patches:
> https://lore.kernel.org/netdev/4cc44e85-cb5e-502c-30f3-c6ea564fe9ac@gmail.com/
Ok, what mail address do you want me to keep for your sign off?
next prev parent reply other threads:[~2021-01-12 13:45 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-09 17:26 [PATCH v6 net-next 00/15] Make .ndo_get_stats64 sleepable Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 01/15] net: mark dev_base_lock for deprecation Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 02/15] net: introduce a mutex for the netns interface lists Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 03/15] net: procfs: hold netif_lists_lock when retrieving device statistics Vladimir Oltean
2021-01-11 23:46 ` Saeed Mahameed
2021-01-12 13:44 ` Vladimir Oltean [this message]
2021-01-12 20:06 ` Saeed Mahameed
2021-01-09 17:26 ` [PATCH v6 net-next 04/15] net: sysfs: don't hold dev_base_lock while " Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 05/15] s390/appldata_net_sum: hold the netdev lists lock when " Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 06/15] parisc/led: " Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 07/15] net: remove return value from dev_get_stats Vladimir Oltean
2021-01-11 22:08 ` Saeed Mahameed
2021-01-09 17:26 ` [PATCH v6 net-next 08/15] net: allow ndo_get_stats64 to return an int error code Vladimir Oltean
2021-01-11 22:24 ` Saeed Mahameed
2021-01-11 22:43 ` Saeed Mahameed
2021-01-09 17:26 ` [PATCH v6 net-next 09/15] scsi: fcoe: propagate errors from dev_get_stats Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 10/15] net: openvswitch: " Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 11/15] net: catch " Vladimir Oltean
2021-01-11 22:54 ` Saeed Mahameed
2021-01-11 23:15 ` Vladimir Oltean
2021-01-11 23:51 ` Saeed Mahameed
2021-01-18 10:31 ` Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 12/15] net: openvswitch: ensure dev_get_stats can sleep Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 13/15] net: net_failover: ensure .ndo_get_stats64 " Vladimir Oltean
2021-01-09 17:26 ` [PATCH v6 net-next 14/15] net: bonding: " Vladimir Oltean
2021-01-11 23:38 ` Saeed Mahameed
2021-01-12 14:37 ` Vladimir Oltean
2021-01-12 20:10 ` Saeed Mahameed
2021-01-13 2:00 ` Jay Vosburgh
2021-01-09 17:26 ` [PATCH v6 net-next 15/15] net: mark ndo_get_stats64 as being able to sleep Vladimir Oltean
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