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
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This archive was generated by hypermail 2b29 : Mon Jul 23 2001 - 21:00:11 EST