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 12 void change_floppy(char *fmt, ...); 13 void mount_block_root(char *name, int flags); 14 void mount_root(void); 15 extern int root_mountflags; 16 17 static 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 23 static 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 35 int __init rd_load_disk(int n); 36 int __init rd_load_image(char *from); 37 38 #else 39 40 static inline int rd_load_disk(int n) { return 0; } 41 static inline int rd_load_image(char *from) { return 0; } 42 43 #endif 44 45 #ifdef CONFIG_BLK_DEV_INITRD 46 47 bool __init initrd_load(void); 48 49 #else 50 51 static inline bool initrd_load(void) { return false; } 52 53 #endif 54 55 #ifdef CONFIG_BLK_DEV_MD 56 57 void md_run_setup(void); 58 59 #else 60 61 static inline void md_run_setup(void) {} 62 63 #endif 64