powerpc/mm: Add PG_dcache_clean to indicate dcache clean state
This just add a better name for PG_arch_1. No functional change in this patch.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210203045812.234439-2-aneesh.kumar@linux.ibm.com
diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
index 3a41545..3546119 100644
--- a/arch/powerpc/mm/pgtable.c
+++ b/arch/powerpc/mm/pgtable.c
@@ -82,9 +82,9 @@ static pte_t set_pte_filter_hash(pte_t pte)
struct page *pg = maybe_pte_to_page(pte);
if (!pg)
return pte;
- if (!test_bit(PG_arch_1, &pg->flags)) {
+ if (!test_bit(PG_dcache_clean, &pg->flags)) {
flush_dcache_icache_page(pg);
- set_bit(PG_arch_1, &pg->flags);
+ set_bit(PG_dcache_clean, &pg->flags);
}
}
return pte;
@@ -117,13 +117,13 @@ static inline pte_t set_pte_filter(pte_t pte)
return pte;
/* If the page clean, we move on */
- if (test_bit(PG_arch_1, &pg->flags))
+ if (test_bit(PG_dcache_clean, &pg->flags))
return pte;
/* If it's an exec fault, we flush the cache and make it clean */
if (is_exec_fault()) {
flush_dcache_icache_page(pg);
- set_bit(PG_arch_1, &pg->flags);
+ set_bit(PG_dcache_clean, &pg->flags);
return pte;
}
@@ -162,12 +162,12 @@ static pte_t set_access_flags_filter(pte_t pte, struct vm_area_struct *vma,
goto bail;
/* If the page is already clean, we move on */
- if (test_bit(PG_arch_1, &pg->flags))
+ if (test_bit(PG_dcache_clean, &pg->flags))
goto bail;
- /* Clean the page and set PG_arch_1 */
+ /* Clean the page and set PG_dcache_clean */
flush_dcache_icache_page(pg);
- set_bit(PG_arch_1, &pg->flags);
+ set_bit(PG_dcache_clean, &pg->flags);
bail:
return pte_mkexec(pte);