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