page cache: use xa_lock

[uclinux-h8/linux.git] / arch / arm / include / asm / cacheflush.h

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 74504b1..869080b 100644 (file)
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -318,10 +318,8 @@ static inline void flush_anon_page(struct vm_area_struct *vma,
 #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
 extern void flush_kernel_dcache_page(struct page *);
 
-#define flush_dcache_mmap_lock(mapping) \
-       spin_lock_irq(&(mapping)->tree_lock)
-#define flush_dcache_mmap_unlock(mapping) \
-       spin_unlock_irq(&(mapping)->tree_lock)
+#define flush_dcache_mmap_lock(mapping)                xa_lock_irq(&mapping->i_pages)
+#define flush_dcache_mmap_unlock(mapping)      xa_unlock_irq(&mapping->i_pages)
 
 #define flush_icache_user_range(vma,page,addr,len) \
        flush_dcache_page(page)