io_fadvise
static bool io_fadvise_force_async(struct io_fadvise *fa)
struct io_fadvise *fa = io_kiocb_to_cmd(req, struct io_fadvise);
struct io_fadvise *fa = io_kiocb_to_cmd(req, struct io_fadvise);
int io_fadvise(struct io_kiocb *req, unsigned int issue_flags);
.issue = io_fadvise,