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powerpc/mm: Use mm_is_thread_local() instread of open-coding 

We open-code testing for the mm being local to the current CPU
in a few places. Use our existing helper instead.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
zero-colors
Benjamin Herrenschmidt 2017-07-24 14:28:01 +10:00 committed by Michael Ellerman
parent 058ccc3465
commit b426e4bd77
4 changed files with 6 additions and 14 deletions
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6
arch/powerpc/mm/hash_utils_64.c
View File

@ -1230,7 +1230,6 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea,
unsigned long vsid;
pte_t *ptep;
unsigned hugeshift;
const struct cpumask *tmp;
int rc, user_region = 0;
int psize, ssize;
@ -1282,8 +1281,7 @@ int hash_page_mm(struct mm_struct *mm, unsigned long ea,
}
/* Check CPU locality */
tmp = cpumask_of(smp_processor_id());
if (user_region && cpumask_equal(mm_cpumask(mm), tmp))
if (user_region && mm_is_thread_local(mm))
flags |= HPTE_LOCAL_UPDATE;
#ifndef CONFIG_PPC_64K_PAGES
@ -1545,7 +1543,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
#endif /* CONFIG_PPC_64K_PAGES */
/* Is that local to this CPU ? */
if (cpumask_equal(mm_cpumask(mm), cpumask_of(smp_processor_id())))
if (mm_is_thread_local(mm))
update_flags |= HPTE_LOCAL_UPDATE;
/* Hash it in */

3
arch/powerpc/mm/hugetlbpage.c
View File

@ -275,8 +275,7 @@ static void hugepd_free(struct mmu_gather *tlb, void *hugepte)
batchp = &get_cpu_var(hugepd_freelist_cur);
if (atomic_read(&tlb->mm->mm_users) < 2 ||
cpumask_equal(mm_cpumask(tlb->mm),
cpumask_of(smp_processor_id()))) {
mm_is_thread_local(tlb->mm)) {
kmem_cache_free(hugepte_cache, hugepte);
put_cpu_var(hugepd_freelist_cur);
return;

4
arch/powerpc/mm/pgtable-hash64.c
View File

@ -329,7 +329,6 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr,
unsigned int psize;
unsigned long vsid;
unsigned long flags = 0;
const struct cpumask *tmp;
/* get the base page size,vsid and segment size */
#ifdef CONFIG_DEBUG_VM
@ -350,8 +349,7 @@ void hpte_do_hugepage_flush(struct mm_struct *mm, unsigned long addr,
ssize = mmu_kernel_ssize;
}
tmp = cpumask_of(smp_processor_id());
if (cpumask_equal(mm_cpumask(mm), tmp))
if (mm_is_thread_local(mm))
flags |= HPTE_LOCAL_UPDATE;
return flush_hash_hugepage(vsid, addr, pmdp, psize, ssize, flags);

7
arch/powerpc/mm/tlb_hash64.c
View File

@ -140,13 +140,10 @@ void hpte_need_flush(struct mm_struct *mm, unsigned long addr,
*/
void __flush_tlb_pending(struct ppc64_tlb_batch *batch)
{
const struct cpumask *tmp;
int i, local = 0;
int i, local;
i = batch->index;
tmp = cpumask_of(smp_processor_id());
if (cpumask_equal(mm_cpumask(batch->mm), tmp))
local = 1;
local = mm_is_thread_local(batch->mm);
if (i == 1)
flush_hash_page(batch->vpn[0], batch->pte[0],
batch->psize, batch->ssize, local);