Re: [crash] Re: Latest brk patchset

From: Jeremy Fitzhardinge
Date: Tue Mar 17 2009 - 01:07:53 EST


H. Peter Anvin wrote:
Yinghai Lu wrote:
You could also write:

PAGE_TABLE_SIZE((-PAGE_OFFSET & 0xffffffff) >> PAGE_SHIFT) << PAGE_SHIFT

(the & 0xffffffff is necessary, or you'll get a signed shift.)
max kernel address space range?


Yes, either ((1 << 32)-PAGE_OFFSET) or (-PAGE_OFFSET & 0xffffffff)
should work for that.

The former seems more obvious.

J
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