[PATCH] mbxfb: Add YUV video overlay support

[pandora-kernel.git] / mm / memory.c

diff --git a/mm/memory.c b/mm/memory.c
index b5a4aad..4198df0 100644 (file)
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -1452,6 +1452,7 @@ static inline void cow_user_page(struct page *dst, struct page *src, unsigned lo
                if (__copy_from_user_inatomic(kaddr, uaddr, PAGE_SIZE))
                        memset(kaddr, 0, PAGE_SIZE);
                kunmap_atomic(kaddr, KM_USER0);
+               flush_dcache_page(dst);
                return;
                
        }
@@ -1901,7 +1902,6 @@ int vmtruncate_range(struct inode *inode, loff_t offset, loff_t end)
 
        return 0;
 }
-EXPORT_UNUSED_SYMBOL(vmtruncate_range);  /*  June 2006  */
 
 /**
  * swapin_readahead - swap in pages in hope we need them soon
@@ -1990,6 +1990,7 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
        delayacct_set_flag(DELAYACCT_PF_SWAPIN);
        page = lookup_swap_cache(entry);
        if (!page) {
+               grab_swap_token(); /* Contend for token _before_ read-in */
                swapin_readahead(entry, address, vma);
                page = read_swap_cache_async(entry, vma, address);
                if (!page) {
@@ -2007,7 +2008,6 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma,
                /* Had to read the page from swap area: Major fault */
                ret = VM_FAULT_MAJOR;
                count_vm_event(PGMAJFAULT);
-               grab_swap_token();
        }
 
        delayacct_clear_flag(DELAYACCT_PF_SWAPIN);