Commit bc652eb6 authored by Max Filippov's avatar Max Filippov
Browse files

xtensa: mm/cache: add missing EXPORT_SYMBOLs 



Functions clear_user_highpage, copy_user_highpage, flush_dcache_page,
local_flush_cache_range and local_flush_cache_page may be used from
modules. Export them.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarMax Filippov <jcmvbkbc@gmail.com>
parent 7f81e55c

arch/xtensa/mm/cache.c

+5 −1
Original line number Diff line number Diff line
@@ -103,6 +103,7 @@ void clear_user_highpage(struct page *page, unsigned long vaddr) 
	clear_page_alias(kvaddr, paddr);

	preempt_enable();

}

EXPORT_SYMBOL(clear_user_highpage);



void copy_user_highpage(struct page *dst, struct page *src,

			unsigned long vaddr, struct vm_area_struct *vma)
@@ -119,6 +120,7 @@ void copy_user_highpage(struct page *dst, struct page *src, 
	copy_page_alias(dst_vaddr, src_vaddr, dst_paddr, src_paddr);

	preempt_enable();

}

EXPORT_SYMBOL(copy_user_highpage);



/*

 * Any time the kernel writes to a user page cache page, or it is about to
@@ -172,7 +174,7 @@ void flush_dcache_page(struct page *page) 


	/* There shouldn't be an entry in the cache for this page anymore. */

}



EXPORT_SYMBOL(flush_dcache_page);



/*

 * For now, flush the whole cache. FIXME??
@@ -184,6 +186,7 @@ void local_flush_cache_range(struct vm_area_struct *vma, 
	__flush_invalidate_dcache_all();

	__invalidate_icache_all();

}

EXPORT_SYMBOL(local_flush_cache_range);



/* 

 * Remove any entry in the cache for this page.
@@ -203,6 +206,7 @@ void local_flush_cache_page(struct vm_area_struct *vma, unsigned long address, 
	__flush_invalidate_dcache_page_alias(virt, phys);

	__invalidate_icache_page_alias(virt, phys);

}

EXPORT_SYMBOL(local_flush_cache_page);



#endif /* DCACHE_WAY_SIZE > PAGE_SIZE */