ARM: 6379/1: Assume new page cache pages have dirty D-cache

[pandora-kernel.git] / arch / arm / mm / fault-armv.c

diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 9b906de..58846cb 100644 (file)
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -141,7 +141,7 @@ make_coherent(struct address_space *mapping, struct vm_area_struct *vma,
  * a page table, or changing an existing PTE.  Basically, there are two
  * things that we need to take care of:
  *
- *  1. If PG_dcache_dirty is set for the page, we need to ensure
+ *  1. If PG_dcache_clean is not set for the page, we need to ensure
  *     that any cache entries for the kernels virtual memory
  *     range are written back to the page.
  *  2. If we have multiple shared mappings of the same space in
@@ -169,7 +169,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr,
 
        mapping = page_mapping(page);
 #ifndef CONFIG_SMP
-       if (test_and_clear_bit(PG_dcache_dirty, &page->flags))
+       if (!test_and_set_bit(PG_dcache_clean, &page->flags))
                __flush_dcache_page(mapping, page);
 #endif
        if (mapping) {