On Thu, Feb 20, 2020 at 4:27 AM Thomas Hellström (VMware)
<thomas_os@xxxxxxxxxxxx> wrote:
>
> From: Thomas Hellstrom <thellstrom@xxxxxxxxxx>
>
> The vma argument is only dereferenced for reading.
>
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Michal Hocko <mhocko@xxxxxxxx>
> Cc: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>
> Cc: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
> Cc: Ralph Campbell <rcampbell@xxxxxxxxxx>
> Cc: "Jérôme Glisse" <jglisse@xxxxxxxxxx>
> Cc: "Christian König" <christian.koenig@xxxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Signed-off-by: Thomas Hellstrom <thellstrom@xxxxxxxxxx>
> Reviewed-by: Roland Scheidegger <sroland@xxxxxxxxxx>
> Acked-by: Christian König <christian.koenig@xxxxxxx>
> ---
> include/linux/fs.h | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 98e0349adb52..4f41fdbf402f 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -3367,7 +3367,7 @@ static inline bool io_is_direct(struct file *filp)
> return (filp->f_flags & O_DIRECT) || IS_DAX(filp->f_mapping->host);
> }
>
> -static inline bool vma_is_dax(struct vm_area_struct *vma)
> +static inline bool vma_is_dax(const struct vm_area_struct *vma)
> {
> return vma->vm_file && IS_DAX(vma->vm_file->f_mapping->host);
> }
Looks good to me:
Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx>
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