#ifndef _LINUX_DEVFS_FS_KERNEL_H #define _LINUX_DEVFS_FS_KERNEL_H #include <linux/fs.h> #include <linux/config.h> #include <linux/spinlock.h> #include <linux/types.h> #include <asm/semaphore.h> #define DEVFS_SUPER_MAGIC 0x1373 #ifdef CONFIG_DEVFS_FS extern int devfs_mk_bdev(dev_t dev, umode_t mode, const char *fmt, ...) __attribute__ ((format(printf, 3, 4))); extern int devfs_mk_cdev(dev_t dev, umode_t mode, const char *fmt, ...) __attribute__ ((format(printf, 3, 4))); extern int devfs_mk_symlink(const char *name, const char *link); extern int devfs_mk_dir(const char *fmt, ...) __attribute__ ((format(printf, 1, 2))); extern void devfs_remove(const char *fmt, ...) __attribute__ ((format(printf, 1, 2))); extern int devfs_register_tape(const char *name); extern void devfs_unregister_tape(int num); extern void mount_devfs_fs(void); #else /* CONFIG_DEVFS_FS */ static inline int devfs_mk_bdev(dev_t dev, umode_t mode, const char *fmt, ...) { return 0; } static inline int devfs_mk_cdev(dev_t dev, umode_t mode, const char *fmt, ...) { return 0; } static inline int devfs_mk_symlink(const char *name, const char *link) { return 0; } static inline int devfs_mk_dir(const char *fmt, ...) { return 0; } static inline void devfs_remove(const char *fmt, ...) { } static inline int devfs_register_tape(const char *name) { return -1; } static inline void devfs_unregister_tape(int num) { } static inline void mount_devfs_fs(void) { return; } #endif /* CONFIG_DEVFS_FS */ #endif /* _LINUX_DEVFS_FS_KERNEL_H */