On 7/14/07, David Miller <[email protected]> wrote:
From: "Albert Cahalan" <[email protected]>
Date: Sat, 14 Jul 2007 22:48:57 -0400
> A real constant-value PAGE_SIZE is useful and doable.
It's bogus to use it. The kernel can get recompiled
to arbitrary page sizes on some architectures, so a constat
page size assumption cannot work.
Sure it can work. The ABI specifies limits on such things.
Probably the most appropriate size is the one specified
for alignment of ELF sections.
If I remember right, it's 64 K for the PowerPC ABI. This allows
for 64 K pages, even though many chips offer 4 K pages.
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