Merge "Fix sdcard's FUSE_FSYNCDIR handling."

static int handle_fsync(struct fuse* fuse, struct fuse_handler* handler,

        const struct fuse_in_header* hdr, const struct fuse_fsync_in* req)

{

    int is_data_sync = req->fsync_flags & 1;

    bool is_dir = (hdr->opcode == FUSE_FSYNCDIR);

    bool is_data_sync = req->fsync_flags & 1;

    int fd = -1;

    if (is_dir) {

      struct dirhandle *dh = id_to_ptr(req->fh);

      fd = dirfd(dh->d);

    } else {

      struct handle *h = id_to_ptr(req->fh);

    int res;

      fd = h->fd;

    }

    TRACE("[%d] FSYNC %p(%d) is_data_sync=%d\n", handler->token,

            h, h->fd, is_data_sync);

    res = is_data_sync ? fdatasync(h->fd) : fsync(h->fd);

    if (res < 0) {

    TRACE("[%d] %s %p(%d) is_data_sync=%d\n", handler->token,

            is_dir ? "FSYNCDIR" : "FSYNC",

            id_to_ptr(req->fh), fd, is_data_sync);

    int res = is_data_sync ? fdatasync(fd) : fsync(fd);

    if (res == -1) {

        return -errno;

    }

    return 0;