On Tue, 8 May 2007, chas williams - CONTRACTOR wrote:
In message <[EMAIL PROTECTED]>,Derr
ick J Brashear writes:
allocate an extra amount of memory for each allocation, making it aligned,
and put a tag saying how to free it in each allocation, then the
alloc/free package and not the caller can decide how to allocate.
this doesnt resolve the issue of 'is it safe for me to perform my
operation with the memory the allocator gave me?' for instance,
it might not be safe to performance certain operations under a
lock with pageable (from vmalloc) memory.
set a flag when you get the memory to ask for what you need.
of course, if you ask for non-pageable memory and you can't get it, then
what?
we could do something gross involving a fixed pool of non-pageable memory
(ick) or have multiple code paths to deal with whether you can lock or not
(no) but what choices do we really have?
you're just saying that because you don't like panics.
i love panic.
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