1#ifndef _LINUX_RAMFS_H 2#define _LINUX_RAMFS_H 3 4struct inode *ramfs_get_inode(struct super_block *sb, const struct inode *dir, 5 umode_t mode, dev_t dev); 6extern struct dentry *ramfs_mount(struct file_system_type *fs_type, 7 int flags, const char *dev_name, void *data); 8 9#ifdef CONFIG_MMU 10static inline int 11ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize) 12{ 13 return 0; 14} 15#else 16extern int ramfs_nommu_expand_for_mapping(struct inode *inode, size_t newsize); 17extern unsigned long ramfs_nommu_get_unmapped_area(struct file *file, 18 unsigned long addr, 19 unsigned long len, 20 unsigned long pgoff, 21 unsigned long flags); 22 23extern int ramfs_nommu_mmap(struct file *file, struct vm_area_struct *vma); 24#endif 25 26extern const struct file_operations ramfs_file_operations; 27extern const struct vm_operations_struct generic_file_vm_ops; 28extern int __init init_rootfs(void); 29 30int ramfs_fill_super(struct super_block *sb, void *data, int silent); 31 32#endif 33