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authorMichael Ellerman <michael@ellerman.id.au>2005-12-04 02:39:15 -0500
committerPaul Mackerras <paulus@samba.org>2006-01-08 22:51:50 -0500
commit51fae6de24da57bc6cdaa1b253595c3513ecbf2d (patch)
tree27df7f07270fb79eae44783331faeb3af3d313ab /include
parentcd0ca2ce4b2f4a5132e7e230be8a510755c20870 (diff)
[PATCH] powerpc: Add a is_kernel_addr() macro
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>
Diffstat (limited to 'include')
-rw-r--r--include/asm-powerpc/page.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-powerpc/page.h b/include/asm-powerpc/page.h
index 18c1e5ee81a3..94905ba2cf41 100644
--- a/include/asm-powerpc/page.h
+++ b/include/asm-powerpc/page.h
@@ -86,6 +86,12 @@
86/* to align the pointer to the (next) page boundary */ 86/* to align the pointer to the (next) page boundary */
87#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE) 87#define PAGE_ALIGN(addr) _ALIGN(addr, PAGE_SIZE)
88 88
89/*
90 * Don't compare things with KERNELBASE or PAGE_OFFSET to test for
91 * "kernelness", use is_kernel_addr() - it should do what you want.
92 */
93#define is_kernel_addr(x) ((x) >= PAGE_OFFSET)
94
89#ifndef __ASSEMBLY__ 95#ifndef __ASSEMBLY__
90 96
91#undef STRICT_MM_TYPECHECKS 97#undef STRICT_MM_TYPECHECKS