diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2005-12-04 08:39:15 +0100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 04:51:50 +0100 |
| commit | 51fae6de24da57bc6cdaa1b253595c3513ecbf2d (patch) | |
| tree | 27df7f07270fb79eae44783331faeb3af3d313ab /include/asm-powerpc/page.h | |
| parent | [PATCH] powerpc: Propagate regs through to machine_crash_shutdown (diff) | |
| download | linux-51fae6de24da57bc6cdaa1b253595c3513ecbf2d.tar.xz linux-51fae6de24da57bc6cdaa1b253595c3513ecbf2d.zip | |
[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/asm-powerpc/page.h')
| -rw-r--r-- | include/asm-powerpc/page.h | 6 |
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 @@ /* 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 |