From: "prodyuth" <prodyuth@indiatimes.com>
To: linux-mm@kvack.org
Subject: Does mmap make a memory copy?
Date: Thu, 14 Feb 2002 22:46:17 +0530 [thread overview]
Message-ID: <200202141704.WAA29840@WS0005.indiatimes.com> (raw)
Hi all,
I would be very thankful if anyone confirms my understanding of mmap.
I am using mmap to attach a device buffer into the process virtual address space. My understanding is that there will not be a kernel copy of the device buffer.
So writing into the process address space is like writing into the device buffer directly without a memory copy.
Am I correct in my understanding.
Thanks in advance for your help.
Regards,
Prodyut.
Get Your Private, Free E-mail from Indiatimes at http://email.indiatimes.com
Buy Music, Video, CD-ROM, Audio-Books and Music Accessories from http://www.planetm.co.in
Get Your Private, Free E-mail from Indiatimes at http://email.indiatimes.com
Buy Music, Video, CD-ROM, Audio-Books and Music Accessories from http://www.planetm.co.in
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/
reply other threads:[~2002-02-14 17:04 UTC|newest]
Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
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=200202141704.WAA29840@WS0005.indiatimes.com \
--to=prodyuth@indiatimes.com \
--cc=linux-mm@kvack.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