From 51fae6de24da57bc6cdaa1b253595c3513ecbf2d Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Sun, 4 Dec 2005 18:39:15 +1100 Subject: [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 Signed-off-by: Paul Mackerras --- arch/powerpc/mm/slb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/powerpc/mm/slb.c') diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c index 60e852f2f8e5..a47b273600ec 100644 --- a/arch/powerpc/mm/slb.c +++ b/arch/powerpc/mm/slb.c @@ -134,14 +134,14 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm) else unmapped_base = TASK_UNMAPPED_BASE_USER64; - if (pc >= KERNELBASE) + if (is_kernel_addr(pc)) return; slb_allocate(pc); if (GET_ESID(pc) == GET_ESID(stack)) return; - if (stack >= KERNELBASE) + if (is_kernel_addr(stack)) return; slb_allocate(stack); @@ -149,7 +149,7 @@ void switch_slb(struct task_struct *tsk, struct mm_struct *mm) || (GET_ESID(stack) == GET_ESID(unmapped_base))) return; - if (unmapped_base >= KERNELBASE) + if (is_kernel_addr(unmapped_base)) return; slb_allocate(unmapped_base); } -- cgit