diff options
| 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/stab.c | |
| parent | [PATCH] powerpc: Propagate regs through to machine_crash_shutdown (diff) | |
| download | linux-dev-51fae6de24da57bc6cdaa1b253595c3513ecbf2d.tar.xz linux-dev-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 'arch/powerpc/mm/stab.c')
| -rw-r--r-- | arch/powerpc/mm/stab.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c index 51e7951414e5..a18dab0d6b12 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; } } |