Re: [Linux-cachefs] [PATCH v6 03/22] cachefiles: notify user daemon with anon_fd when looking up cookie

JeffleXu
2022-03-29T06:14:43Z

On 3/25/22 8:22 PM, Jeffle Xu wrote:

> diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
> index e80673d0ab97..8a0f1b691aca 100644
> --- a/fs/cachefiles/internal.h
> +++ b/fs/cachefiles/internal.h
> @@ -15,6 +15,8 @@
>
> +/*
> + * ondemand.c
> + */
> +#ifdef CONFIG_CACHEFILES_ONDEMAND
> +extern ssize_t cachefiles_ondemand_daemon_read(struct cachefiles_cache *cache,
> + char __user *_buffer,
> + size_t buflen);
> +
> +extern int cachefiles_ondemand_cinit(struct cachefiles_cache *cache,
> + char *args);
> +
> +extern int cachefiles_ondemand_init_object(struct cachefiles_object *object);
> +
> +#else

> +ssize_t cachefiles_ondemand_daemon_read(struct cachefiles_cache *cache,
> + char __user *_buffer, size_t buflen)

Needs to be declared as static inline ...

> +{
> + return -EOPNOTSUPP;
> +}
> +
> +static inline int cachefiles_ondemand_init_object(struct cachefiles_object *object)
> +{
> + return 0;
> +}
> +#endif

--
Thanks,
Jeffle