[Virtio-fs] [PATCH v8 1/7] fuse: add fuse_should_enable_dax() helper

[Vivek Goyal]

On Thu, Nov 25, 2021 at 03:05:24PM +0800, Jeffle Xu wrote:
> This is in prep for following per inode DAX checking.
> 
> Signed-off-by: Jeffle Xu <jefflexu at linux.alibaba.com>

Reviewed-by: Vivek Goyal <vgoyal at redhat.com>

Vivek
> ---
>  fs/fuse/dax.c | 10 +++++++++-
>  1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/fs/fuse/dax.c b/fs/fuse/dax.c
> index 5778ebfbce5e..4c48a57632bd 100644
> --- a/fs/fuse/dax.c
> +++ b/fs/fuse/dax.c
> @@ -1329,11 +1329,19 @@ static const struct address_space_operations fuse_dax_file_aops  = {
>  	.invalidatepage	= noop_invalidatepage,
>  };
>  
> -void fuse_dax_inode_init(struct inode *inode)
> +static bool fuse_should_enable_dax(struct inode *inode)
>  {
>  	struct fuse_conn *fc = get_fuse_conn(inode);
>  
>  	if (!fc->dax)
> +		return false;
> +
> +	return true;
> +}
> +
> +void fuse_dax_inode_init(struct inode *inode)
> +{
> +	if (!fuse_should_enable_dax(inode))
>  		return;
>  
>  	inode->i_flags |= S_DAX;
> -- 
> 2.27.0
>