It's also a good idea to mem_map_reserve( ) pages that will be remapped to
user space.
Ramil J.Santamaria
Toshiba America Information Systems
ramil.santamaria@tais.toshiba.com
Rajeev Bector
<rajeev_bector@yahoo.com To: linux-kernel@vger.kernel.org
> cc:
Sent by: Subject: vmalloc and kiobuf questions ?
linux-kernel-owner@vger.
kernel.org
07/18/2001 10:46 AM
MM Gurus,
In trying to understand how to map driver
memory into user space memory, I have the following
questions:
1) Is there a limit to how much memory
I can allocate using vmalloc() ?
(This is regular RAM)
2) I want to map the vmalloc'ed memory
to user space via mmap(). I've read
that remap_page_range() will not do it
and I have to do it using nopage
handlers ? Is that true ? Is there
a simple answer to why is that the case ?
3) I've also read the kiobufs will simplify
all this. Is there a documentation on
kiobufs - what they can and cannot do ?
Are kiobufs part of the standard kernel
now ?
Thanks in advance for your answers !
Rajeev
__________________________________________________
Do You Yahoo!?
Get personalized email addresses from Yahoo! Mail
http://personal.mail.yahoo.com/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Mon Jul 23 2001 - 21:00:11 EST