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Diffstat (limited to 'arch/arm64/mm/flush.c')
-rw-r--r--arch/arm64/mm/flush.c36
1 files changed, 14 insertions, 22 deletions
diff --git a/arch/arm64/mm/flush.c b/arch/arm64/mm/flush.c
index 4e6476094952..013eead9b695 100644
--- a/arch/arm64/mm/flush.c
+++ b/arch/arm64/mm/flush.c
@@ -51,20 +51,13 @@ void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
void __sync_icache_dcache(pte_t pte)
{
- struct page *page = pte_page(pte);
+ struct folio *folio = page_folio(pte_page(pte));
- /*
- * HugeTLB pages are always fully mapped, so only setting head page's
- * PG_dcache_clean flag is enough.
- */
- if (PageHuge(page))
- page = compound_head(page);
-
- if (!test_bit(PG_dcache_clean, &page->flags)) {
- sync_icache_aliases((unsigned long)page_address(page),
- (unsigned long)page_address(page) +
- page_size(page));
- set_bit(PG_dcache_clean, &page->flags);
+ if (!test_bit(PG_dcache_clean, &folio->flags)) {
+ sync_icache_aliases((unsigned long)folio_address(folio),
+ (unsigned long)folio_address(folio) +
+ folio_size(folio));
+ set_bit(PG_dcache_clean, &folio->flags);
}
}
EXPORT_SYMBOL_GPL(__sync_icache_dcache);
@@ -74,17 +67,16 @@ EXPORT_SYMBOL_GPL(__sync_icache_dcache);
* it as dirty for later flushing when mapped in user space (if executable,
* see __sync_icache_dcache).
*/
-void flush_dcache_page(struct page *page)
+void flush_dcache_folio(struct folio *folio)
{
- /*
- * HugeTLB pages are always fully mapped and only head page will be
- * set PG_dcache_clean (see comments in __sync_icache_dcache()).
- */
- if (PageHuge(page))
- page = compound_head(page);
+ if (test_bit(PG_dcache_clean, &folio->flags))
+ clear_bit(PG_dcache_clean, &folio->flags);
+}
+EXPORT_SYMBOL(flush_dcache_folio);
- if (test_bit(PG_dcache_clean, &page->flags))
- clear_bit(PG_dcache_clean, &page->flags);
+void flush_dcache_page(struct page *page)
+{
+ flush_dcache_folio(page_folio(page));
}
EXPORT_SYMBOL(flush_dcache_page);