On Thu, Feb 02, 2017 at 12:36:12PM +0100, Arnd Bergmann wrote:
> It looks like a search+replace accidentally change one function pointer that
> should have remained as before, as shown by this new warning:
>
> fs/ext4/file.c:279:1: error: 'ext4_dax_huge_fault' defined but not used [-Werror=unused-function]
>
> This reverts the one line of the changeset.
>
> Fixes: 80a841811260 ("mm,fs,dax: change ->pmd_fault to ->huge_fault")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> fs/ext4/file.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/ext4/file.c b/fs/ext4/file.c
> index ed22d20e843c..e1a581133aa1 100644
> --- a/fs/ext4/file.c
> +++ b/fs/ext4/file.c
> @@ -329,7 +329,7 @@ static int ext4_dax_pfn_mkwrite(struct vm_fault *vmf)
> static const struct vm_operations_struct ext4_dax_vm_ops = {
> .fault = ext4_dax_fault,
> .huge_fault = ext4_dax_fault,
> - .page_mkwrite = ext4_dax_fault,
> + .page_mkwrite = ext4_dax_huge_fault,
> .pfn_mkwrite = ext4_dax_pfn_mkwrite,
> };
> #else
> --
> 2.9.0
Hey Arnd,
I saw this as well, but fixed it by removing ext4_dax_huge_fault() since after
Dave's changes ext4_dax_fault() and ext4_dax_huge_fault() are identical.
http://www.spinics.net/lists/linux-mm/msg121117.html
If you're alright with it let's go that way so we can remove a redundant
function.
- Ross
