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| author | Michael Ellerman <michael@ellerman.id.au> | 2005-12-04 18:39:15 +1100 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-01-09 14:51:50 +1100 |
| commit | 51fae6de24da57bc6cdaa1b253595c3513ecbf2d (patch) | |
| tree | 27df7f07270fb79eae44783331faeb3af3d313ab /arch/powerpc/mm | |
| parent | cd0ca2ce4b2f4a5132e7e230be8a510755c20870 (diff) | |
| download | op-kernel-dev-51fae6de24da57bc6cdaa1b253595c3513ecbf2d.zip op-kernel-dev-51fae6de24da57bc6cdaa1b253595c3513ecbf2d.tar.gz | |
[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')
| -rw-r--r-- | arch/powerpc/mm/slb.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/mm/stab.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/mm/tlb_64.c | 2 |
3 files changed, 7 insertions, 7 deletions
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c index 60e852f..a47b273 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); } diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c index 51e7951..a18dab0 100644 --- a/arch/powerpc/mm/stab.c +++ b/arch/powerpc/mm/stab.c @@ -122,7 +122,7 @@ static int __ste_allocate(unsigned long ea, struct mm_struct *mm) unsigned long offset; /* Kernel or user address? */ - if (ea >= KERNELBASE) { + if (is_kernel_addr(ea)) { vsid = get_kernel_vsid(ea); } else { if ((ea >= TASK_SIZE_USER64) || (! mm)) @@ -133,7 +133,7 @@ static int __ste_allocate(unsigned long ea, struct mm_struct *mm) stab_entry = make_ste(get_paca()->stab_addr, GET_ESID(ea), vsid); - if (ea < KERNELBASE) { + if (!is_kernel_addr(ea)) { offset = __get_cpu_var(stab_cache_ptr); if (offset < NR_STAB_CACHE_ENTRIES) __get_cpu_var(stab_cache[offset++]) = stab_entry; @@ -190,7 +190,7 @@ void switch_stab(struct task_struct *tsk, struct mm_struct *mm) entry++, ste++) { unsigned long ea; ea = ste->esid_data & ESID_MASK; - if (ea < KERNELBASE) { + if (!is_kernel_addr(ea)) { ste->esid_data = 0; } } diff --git a/arch/powerpc/mm/tlb_64.c b/arch/powerpc/mm/tlb_64.c index 859d29a..bb3afb6 100644 --- a/arch/powerpc/mm/tlb_64.c +++ b/arch/powerpc/mm/tlb_64.c @@ -168,7 +168,7 @@ void hpte_update(struct mm_struct *mm, unsigned long addr, batch->mm = mm; batch->psize = psize; } - if (addr < KERNELBASE) { + if (!is_kernel_addr(addr)) { vsid = get_vsid(mm->context.id, addr); WARN_ON(vsid == 0); } else |
