netdev - Re: [PATCH net-next] netlink: do not enter direct reclaim from netlink

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Message-Id: <20170116.133955.89348360657996924.davem@davemloft.net>
Date:   Mon, 16 Jan 2017 13:39:55 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     eric.dumazet@...il.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH net-next] netlink: do not enter direct reclaim from
 netlink_trim()

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Fri, 13 Jan 2017 09:11:22 -0800

> From: Eric Dumazet <edumazet@...gle.com>
> 
> In commit d35c99ff77ecb ("netlink: do not enter direct reclaim from
> netlink_dump()") we made sure to not trigger expensive memory reclaim.
> 
> Problem is that a bit later, netlink_trim() might be called and
> trigger memory reclaim.
> 
> netlink_trim() should be best effort, and really as fast as possible.
> Under memory pressure, it is fine to not trim this skb.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>

Applied, thanks Eric.