From: Rusty Russell <rusty@rustcorp•com.au>
To: Mike Waychison <mikew@google•com>, "Michael S. Tsirkin" <mst@redhat•com>
Cc: netdev@vger•kernel.org, linux-kernel@vger•kernel.org,
virtualization@lists•linux-foundation.org
Subject: Re: [RFC PATCH v1 1/2] virtio_net: Pass gfp flags when allocating rx buffers.
Date: Thu, 05 Jan 2012 10:40:02 +1030 [thread overview]
Message-ID: <871urfc8md.fsf@rustcorp.com.au> (raw)
In-Reply-To: <20120104225231.18184.96390.stgit@mike2.sea.corp.google.com>
On Wed, 04 Jan 2012 14:52:32 -0800, Mike Waychison <mikew@google•com> wrote:
> Currently, the refill path for RX buffers will always allocate the
> buffers as GFP_ATOMIC, even if we are in process context. This will
> fail to apply memory pressure as the worker thread will not contribute
> to the freeing of memory.
>
> Fix this by changing add_recvbuf_small to use the gfp variant allocator,
> __netdev_alloc_skb_ip_align().
>
> Signed-off-by: Mike Waychison <mikew@google•com>
OK, this is a no-brainer. Thanks! Dave, can you pick this up?
Acked-by: Rusty Russell <rusty@rustcorp•com.au>
Cheers,
Rusty.
next prev parent reply other threads:[~2012-01-05 0:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-04 22:52 [RFC PATCH v1 0/2] virtio_net: Better low memory handling Mike Waychison
2012-01-04 22:52 ` [RFC PATCH v1 1/2] virtio_net: Pass gfp flags when allocating rx buffers Mike Waychison
2012-01-05 0:10 ` Rusty Russell [this message]
2012-01-05 18:21 ` David Miller
2012-01-04 22:52 ` [RFC PATCH v1 2/2] virtio_net: Don't disable napi on low memory Mike Waychison
2012-01-05 0:31 ` Rusty Russell
2012-01-05 2:46 ` Mike Waychison
2012-01-06 17:54 ` Mike Waychison
2012-01-09 6:46 ` Rusty Russell
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=871urfc8md.fsf@rustcorp.com.au \
--to=rusty@rustcorp$(echo .)com.au \
--cc=linux-kernel@vger$(echo .)kernel.org \
--cc=mikew@google$(echo .)com \
--cc=mst@redhat$(echo .)com \
--cc=netdev@vger$(echo .)kernel.org \
--cc=virtualization@lists$(echo .)linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox