1 #include <linux/kernel.h>
2 #include <linux/blkdev.h>
3 #include <linux/init.h>
4 #include <linux/syscalls.h>
5 #include <linux/unistd.h>
6 #include <linux/slab.h>
7 #include <linux/mount.h>
8 #include <linux/major.h>
9 #include <linux/root_dev.h>
10 
11 void  change_floppy(char *fmt, ...);
12 void  mount_block_root(char *name, int flags);
13 void  mount_root(void);
14 extern int root_mountflags;
15 
create_dev(char * name,dev_t dev)16 static inline int create_dev(char *name, dev_t dev)
17 {
18 	sys_unlink(name);
19 	return sys_mknod(name, S_IFBLK|0600, new_encode_dev(dev));
20 }
21 
22 #if BITS_PER_LONG == 32
bstat(char * name)23 static inline u32 bstat(char *name)
24 {
25 	struct stat64 stat;
26 	if (sys_stat64(name, &stat) != 0)
27 		return 0;
28 	if (!S_ISBLK(stat.st_mode))
29 		return 0;
30 	if (stat.st_rdev != (u32)stat.st_rdev)
31 		return 0;
32 	return stat.st_rdev;
33 }
34 #else
bstat(char * name)35 static inline u32 bstat(char *name)
36 {
37 	struct stat stat;
38 	if (sys_newstat(name, &stat) != 0)
39 		return 0;
40 	if (!S_ISBLK(stat.st_mode))
41 		return 0;
42 	return stat.st_rdev;
43 }
44 #endif
45 
46 #ifdef CONFIG_BLK_DEV_RAM
47 
48 int __init rd_load_disk(int n);
49 int __init rd_load_image(char *from);
50 
51 #else
52 
rd_load_disk(int n)53 static inline int rd_load_disk(int n) { return 0; }
rd_load_image(char * from)54 static inline int rd_load_image(char *from) { return 0; }
55 
56 #endif
57 
58 #ifdef CONFIG_BLK_DEV_INITRD
59 
60 int __init initrd_load(void);
61 
62 #else
63 
initrd_load(void)64 static inline int initrd_load(void) { return 0; }
65 
66 #endif
67 
68 #ifdef CONFIG_BLK_DEV_MD
69 
70 void md_run_setup(void);
71 
72 #else
73 
md_run_setup(void)74 static inline void md_run_setup(void) {}
75 
76 #endif
77