From: kernel coder <lhrkernelcoder@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: zero copy
Date: Tue, 6 Dec 2005 04:09:30 -0800 [thread overview]
Message-ID: <f69849430512060409k1798e377h442e42bbf17b0d8a@mail.gmail.com> (raw)
hi,
i'm trying to track the code flow of sendfile system call.Mine
ethernet card doesn't have scatter gather and checksum calculation
features.So stack should be making a copy of data.
Please tell me where in sendfile code flow,check for scatter gather
and cecksum features is made so that stack can decide whether to copy
data from user space or not.
lhrkernelcoder
next reply other threads:[~2005-12-06 12:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-06 12:09 kernel coder [this message]
2005-12-06 12:28 ` zero copy Steven Whitehouse
-- strict thread matches above, loose matches on Subject: below --
2003-02-07 10:04 Emiliano Gabrielli
2003-02-06 23:07 Venkat Raghu
2002-03-12 8:59 Rogier Wolff
2002-03-12 9:07 ` Andi Kleen
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=f69849430512060409k1798e377h442e42bbf17b0d8a@mail.gmail.com \
--to=lhrkernelcoder@gmail.com \
--cc=linux-kernel@vger.kernel.org \
/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).