ARM: ZERO_PAGE: Avoid flush_dcache_page() for zero page
The zero page is read-only, and has its cache state cleared during
boot. No further maintanence for this page is required.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index ea67be0..2427cdc 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -1036,7 +1036,7 @@
*/
zero_page = alloc_bootmem_low_pages(PAGE_SIZE);
empty_zero_page = virt_to_page(zero_page);
- flush_dcache_page(empty_zero_page);
+ __flush_dcache_page(NULL, empty_zero_page);
}
/*