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xtensa: mm/cache: add missing EXPORT_SYMBOLs

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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: Max Filippov <jcmvbkbc@gmail.com>
This commit is contained in:
Max Filippov 2017-08-01 11:15:15 -07:00
parent 7f81e55c73
commit bc652eb6a0
1 changed files with 5 additions and 1 deletions
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6
arch/xtensa/mm/cache.c
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@ -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 */