iomap_swapfile_info
struct iomap_swapfile_info isi = {
static int iomap_swapfile_add_extent(struct iomap_swapfile_info *isi)
static int iomap_swapfile_fail(struct iomap_swapfile_info *isi, const char *str)
struct iomap *iomap, struct iomap_swapfile_info *isi)