blob: ecb275782c03ef63694d66468d25d389564bb500
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 | |
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 |
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 |
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 | |
53 | static inline int rd_load_disk(int n) { return 0; } |
54 | static inline int rd_load_image(char *from) { return 0; } |
55 | |
56 | #endif |
57 | |
58 | #ifdef CONFIG_BLK_DEV_INITRD |
59 | |
60 | bool __init initrd_load(void); |
61 | |
62 | #else |
63 | |
64 | static inline bool initrd_load(void) { return false; } |
65 | |
66 | #endif |
67 | |
68 | #ifdef CONFIG_BLK_DEV_MD |
69 | |
70 | void md_run_setup(void); |
71 | |
72 | #else |
73 | |
74 | static inline void md_run_setup(void) {} |
75 | |
76 | #endif |
77 | |
78 | #ifdef CONFIG_BLK_DEV_DM |
79 | |
80 | void dm_run_setup(void); |
81 | |
82 | #else |
83 | |
84 | static inline void dm_run_setup(void) {} |
85 | |
86 | #endif |
87 |