linux-kernel - Re: [PATCH] fs: iomap: Change return type to vm_fault

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Date:   Mon, 2 Jul 2018 19:52:41 +0200
From:   Andreas Gruenbacher <agruenba@...hat.com>
To:     Souptick Joarder <jrdr.linux@...il.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        "Darrick J. Wong" <darrick.wong@...cle.com>,
        Jan Kara <jack@...e.cz>, Dave Chinner <dchinner@...hat.com>,
        "Theodore Ts'o" <tytso@....edu>,
        Bob Peterson <rpeterso@...hat.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-fsdevel <linux-fsdevel@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>, willy@...radead.org
Subject: Re: [PATCH] fs: iomap: Change return type to vm_fault_t

On 2 July 2018 at 17:43, Souptick Joarder <jrdr.linux@...il.com> wrote:
> Return type has been changed to vm_fault_t type for
> iomap_page_mkwrite().
>
> see commit 1c8f422059ae ("mm: change return type to
> vm_fault_t") for reference.
>
> Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
> Reviewed-by: Matthew Wilcox <mawilcox@...rosoft.com>
> ---
>  fs/iomap.c            | 2 +-
>  include/linux/iomap.h | 4 +++-
>  2 files changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/fs/iomap.c b/fs/iomap.c
> index afd1635..58477ee 100644
> --- a/fs/iomap.c
> +++ b/fs/iomap.c
> @@ -443,7 +443,7 @@ static int iomap_dax_zero(loff_t pos, unsigned offset, unsigned bytes,
>         return length;
>  }
>
> -int iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_ops *ops)
> +vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_ops *ops)
>  {
>         struct page *page = vmf->page;
>         struct inode *inode = file_inode(vmf->vma->vm_file);
> diff --git a/include/linux/iomap.h b/include/linux/iomap.h
> index 19a07de..666b717 100644
> --- a/include/linux/iomap.h
> +++ b/include/linux/iomap.h
> @@ -3,6 +3,7 @@
>  #define LINUX_IOMAP_H 1
>
>  #include <linux/types.h>
> +#include <linux/mm_types.h>
>
>  struct fiemap_extent_info;
>  struct inode;
> @@ -88,7 +89,8 @@ int iomap_zero_range(struct inode *inode, loff_t pos, loff_t len,
>                 bool *did_zero, const struct iomap_ops *ops);
>  int iomap_truncate_page(struct inode *inode, loff_t pos, bool *did_zero,
>                 const struct iomap_ops *ops);
> -int iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_ops *ops);
> +vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf,
> +                       const struct iomap_ops *ops);
>  int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
>                 loff_t start, loff_t len, const struct iomap_ops *ops);
>  loff_t iomap_seek_hole(struct inode *inode, loff_t offset,
> --
> 1.9.1
>

Added to for-next, thanks.

Andreas