From: David Miller <davem@davemloft.net>
To: therbert@google.com
Cc: netdev@vger.kernel.org
Subject: Re: [PATCH v4] net: Allow no-cache copy from user on transmit
Date: Tue, 05 Apr 2011 04:56:40 -0700 (PDT) [thread overview]
Message-ID: <20110405.045640.133903374.davem@davemloft.net> (raw)
In-Reply-To: <alpine.DEB.2.00.1104042058370.18421@pokey.mtv.corp.google.com>
From: Tom Herbert <therbert@google.com>
Date: Mon, 4 Apr 2011 21:03:30 -0700 (PDT)
> This patch uses __copy_from_user_nocache on transmit to bypass data
> cache for a performance improvement. skb_add_data_nocache and
> skb_copy_to_page_nocache can be called by sendmsg functions to use
> this feature, initial support is in tcp_sendmsg. This functionality is
> configurable per device using ethtool.
...
> Signed-off-by: Tom Herbert <therbert@google.com>
Applied, thanks Tom.
prev parent reply other threads:[~2011-04-05 11:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-05 4:03 [PATCH v4] net: Allow no-cache copy from user on transmit Tom Herbert
2011-04-05 11:56 ` David Miller [this message]
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=20110405.045640.133903374.davem@davemloft.net \
--to=davem@davemloft.net \
--cc=netdev@vger.kernel.org \
--cc=therbert@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
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;
as well as URLs for NNTP newsgroup(s).