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[PATCH] powerpc: Add a is_kernel_addr() macro

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There's a bunch of code that compares an address with KERNELBASE to see if
it's a "kernel address", ie. >= KERNELBASE. The proper test is actually to
compare with PAGE_OFFSET, since we're going to change KERNELBASE soon.

So replace all of them with an is_kernel_addr() macro that does that.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Michael Ellerman
2005-12-04 18:39:15 +11:00
committed by Paul Mackerras
parent cd0ca2ce4b
commit 51fae6de24
9 changed files with 20 additions and 15 deletions
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6
include/asm-powerpc/page.h
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@@ -86,6 +86,12 @@
/* to align the pointer to the (next) page boundary */
#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE)
/*
* Don't compare things with KERNELBASE or PAGE_OFFSET to test for
* "kernelness", use is_kernel_addr() - it should do what you want.
*/
#define is_kernel_addr(x) ((x) >= PAGE_OFFSET)
#ifndef __ASSEMBLY__
#undef STRICT_MM_TYPECHECKS