From: Oliver Neukum <oneukum@suse.com>
To: David Miller <davem@davemloft.net>, jim_baxter@mentor.com
Cc: bjorn@mork.no, linux-usb@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [RFC V1 1/1] net: cdc_ncm: Reduce memory use when kernel memory low
Date: Tue, 23 May 2017 10:42:48 +0200 [thread overview]
Message-ID: <1495528968.2174.2.camel@suse.com> (raw)
In-Reply-To: <20170522.115426.1239443379414364630.davem@davemloft.net>
Am Montag, den 22.05.2017, 11:54 -0400 schrieb David Miller:
>
> Unfortunately without a real notifier of some sort (there isn't one, and
> it isn't actually easy to come up with a clean way to do this which is
> probably why it doesn't exist yet in the first place) I really cannot
> recommend anything better.
>
> That being said, probably for the time being we should just backoff each
> and every request, always trying initially to do the higher order thing.
We could use a counter. After the first failure, do it once, after the
second twice and so on. And reset the counter as a higher order
allocation works. (just bound it somewhere)
Regards
Oliver
next prev parent reply other threads:[~2017-05-23 8:44 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-16 17:41 [RFC V1 0/1] Reduce cdc_ncm memory use when kernel memory low Jim Baxter
2017-05-16 17:41 ` [RFC V1 1/1] net: cdc_ncm: Reduce " Jim Baxter
2017-05-16 18:24 ` Bjørn Mork
2017-05-17 7:44 ` Oliver Neukum
2017-05-17 10:56 ` Baxter, Jim
2017-05-17 18:18 ` David Miller
2017-05-18 10:01 ` Oliver Neukum
2017-05-22 15:45 ` Baxter, Jim
2017-05-22 15:54 ` David Miller
2017-05-23 8:42 ` Oliver Neukum [this message]
2017-05-23 15:26 ` David Miller
2017-05-23 19:06 ` Baxter, Jim
[not found] ` <1497263047.15677.13.camel@suse.com>
2017-06-12 12:32 ` Baxter, Jim
2017-05-19 11:10 ` David Laight
2017-05-19 13:55 ` Bjørn Mork
2017-05-19 14:46 ` David Laight
2017-05-22 13:27 ` Oliver Neukum
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