1/* SPDX-License-Identifier: GPL-2.0 */ 2#include <linux/kernel.h> 3#include <linux/blkdev.h> 4#include <linux/init.h> 5#include <linux/syscalls.h> 6#include <linux/unistd.h> 7#include <linux/slab.h> 8#include <linux/mount.h> 9#include <linux/major.h> 10#include <linux/root_dev.h> 11 12void change_floppy(char *fmt, ...); 13void mount_block_root(char *name, int flags); 14void mount_root(void); 15extern int root_mountflags; 16 17static inline int create_dev(char *name, dev_t dev) 18{ 19 ksys_unlink(name); 20 return ksys_mknod(name, S_IFBLK|0600, new_encode_dev(dev)); 21} 22 23static inline u32 bstat(char *name) 24{ 25 struct kstat stat; 26 if (vfs_stat(name, &stat) != 0) 27 return 0; 28 if (!S_ISBLK(stat.mode)) 29 return 0; 30 return stat.rdev; 31} 32 33#ifdef CONFIG_BLK_DEV_RAM 34 35int __init rd_load_disk(int n); 36int __init rd_load_image(char *from); 37 38#else 39 40static inline int rd_load_disk(int n) { return 0; } 41static inline int rd_load_image(char *from) { return 0; } 42 43#endif 44 45#ifdef CONFIG_BLK_DEV_INITRD 46 47bool __init initrd_load(void); 48 49#else 50 51static inline bool initrd_load(void) { return false; } 52 53#endif 54 55#ifdef CONFIG_BLK_DEV_MD 56 57void md_run_setup(void); 58 59#else 60 61static inline void md_run_setup(void) {} 62 63#endif 64