The patch titled
Subject: sh: add copy_user_page() alias for __copy_user()
has been added to the -mm tree. Its filename is
sh-add-copy_user_page-alias-for-__copy_user.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/sh-add-copy_user_page-alias-for-__copy_user.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/sh-add-copy_user_page-alias-for-__copy_user.patch
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------------------------------------------------------
From: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Subject: sh: add copy_user_page() alias for __copy_user()
copy_user_page() is needed by DAX. Without this we get a compile error
for DAX on SH:
fs/dax.c:280:2: error: implicit declaration of function `copy_user_page'
[-Werror=implicit-function-declaration]
copy_user_page(vto, (void __force *)vfrom, vaddr, to);
^
This was done with a random config that happened to include DAX support.
This patch has only been compile tested.
Signed-off-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
Reported-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
Cc: Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/sh/include/asm/page.h | 1 +
1 file changed, 1 insertion(+)
diff -puN arch/sh/include/asm/page.h~sh-add-copy_user_page-alias-for-__copy_user arch/sh/include/asm/page.h
--- a/arch/sh/include/asm/page.h~sh-add-copy_user_page-alias-for-__copy_user
+++ a/arch/sh/include/asm/page.h
@@ -59,6 +59,7 @@ pages_do_alias(unsigned long addr1, unsi
#define clear_page(page) memset((void *)(page), 0, PAGE_SIZE)
extern void copy_page(void *to, void *from);
+#define copy_user_page(to, from, vaddr, pg) __copy_user(to, from, PAGE_SIZE)
struct page;
struct vm_area_struct;
_
Patches currently in -mm which might be from ross.zwisler@xxxxxxxxxxxxxxx are
mm-dax-fix-dax-deadlocks.patch
sh-add-copy_user_page-alias-for-__copy_user.patch
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