linux-master/init/initramfs.c

594 	initrd_start = initrd_end = 0;
622 	initrd_start = (unsigned long)__va(phys_initrd_start);
623 	initrd_end = initrd_start + phys_initrd_size;
629 	initrd_start = 0;
656 	if (initrd_start >= crashk_end || initrd_end <= crashk_start)
662 	memset((void *)initrd_start, 0, initrd_end - initrd_start);
663 	if (initrd_start < crashk_start)
664 		free_initrd_mem(initrd_start, crashk_start);
689 	written = xwrite(file, (char *)initrd_start, initrd_end - initrd_start,
691 	if (written != initrd_end - initrd_start)
693 		       written, initrd_end - initrd_start);
705 	if (!initrd_start || IS_ENABLED(CONFIG_INITRAMFS_FORCE))
713 	err = unpack_to_rootfs((char *)initrd_start, initrd_end - initrd_start);
727 	if (!do_retain_initrd && initrd_start && !kexec_free_initrd()) {
728 		free_initrd_mem(initrd_start, initrd_end);
729 	} else if (do_retain_initrd && initrd_start) {
730 		bin_attr_initrd.size = initrd_end - initrd_start;
731 		bin_attr_initrd.private = (void *)initrd_start;
735 	initrd_start = 0;