On Monday 23 February 2015 11:28:12 Geert Uytterhoeven wrote:

On Mon, Feb 23, 2015 at 11:24 AM, Arnd Bergmann [off-list ref] wrote:

quoted

On Monday 23 February 2015 10:14:55 Geert Uytterhoeven wrote:

quoted

On Mon, Feb 23, 2015 at 10:03 AM, Arnd Bergmann [off-list ref] wrote:

quoted

quoted

quoted

  + /home/kisskb/slave/src/fs/dax.c: error: implicit declaration of function 'copy_user_page' [-Werror=implicit-function-declaration]:  => 266:2

quoted

I checked the other architectures, and found that the same is missing on
ARC, so we should add both:

diff --git a/fs/Kconfig b/fs/Kconfig
index ec35851e5b71..a24d496787d6 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig

@@ -36,7 +36,7 @@ source "fs/nilfs2/Kconfig"
 config FS_DAX
        bool "Direct Access (DAX) support"
        depends on MMU
-       depends on !(ARM || MIPS || SPARC)
+       depends on !(ARC || ARM || MIPS || SH || SPARC)
        help
          Direct Access (DAX) can be used on memory-backed block devices.
          If the block device supports DAX and the filesystem supports DAX,

It's also not implemented on c6x and blackfin, but both of them have
MMU=n, so they are already excluded.

Exactly.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>

Thanks, let me submit that as a proper patch with a changelog then.

	Arnd