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authorMichael Ellerman <michael@ellerman.id.au>2005-12-04 18:39:15 +1100
committerPaul Mackerras <paulus@samba.org>2006-01-09 14:51:50 +1100
commit51fae6de24da57bc6cdaa1b253595c3513ecbf2d (patch)
tree27df7f07270fb79eae44783331faeb3af3d313ab /arch/powerpc/mm/slb.c
parentcd0ca2ce4b2f4a5132e7e230be8a510755c20870 (diff)
downloadlinux-bcache-51fae6de24da57bc6cdaa1b253595c3513ecbf2d.tar.zst
[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 'arch/powerpc/mm/slb.c')
-rw-r--r--arch/powerpc/mm/slb.c6
1 files changed, 3 insertions, 3 deletions
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);
}