47 #define F_DENTRY(filp) ((filp)->f_path.dentry)  argument
49 const struct file_operations *debugfs_real_fops(const struct file *filp)  in debugfs_real_fops()  argument
51 	struct debugfs_fsdata *fsd = F_DENTRY(filp)->d_fsdata;  in debugfs_real_fops()
146 			       struct file *filp,  in debugfs_locked_down()  argument
150 	    !(filp->f_mode & FMODE_WRITE) &&  in debugfs_locked_down()
162 static int open_proxy_open(struct inode *inode, struct file *filp)  in open_proxy_open()  argument
164 	struct dentry *dentry = F_DENTRY(filp);  in open_proxy_open()
172 	real_fops = debugfs_real_fops(filp);  in open_proxy_open()
174 	r = debugfs_locked_down(inode, filp, real_fops);  in open_proxy_open()
186 	replace_fops(filp, real_fops);  in open_proxy_open()
189 		r = real_fops->open(inode, filp);  in open_proxy_open()
203 #define FULL_PROXY_FUNC(name, ret_type, filp, proto, args)		\  argument
206 	struct dentry *dentry = F_DENTRY(filp);			\
213 	real_fops = debugfs_real_fops(filp);				\
219 FULL_PROXY_FUNC(llseek, loff_t, filp,
220 		PROTO(struct file *filp, loff_t offset, int whence),
221 		ARGS(filp, offset, whence));
223 FULL_PROXY_FUNC(read, ssize_t, filp,
224 		PROTO(struct file *filp, char __user *buf, size_t size,
226 		ARGS(filp, buf, size, ppos));
228 FULL_PROXY_FUNC(write, ssize_t, filp,
229 		PROTO(struct file *filp, const char __user *buf, size_t size,
231 		ARGS(filp, buf, size, ppos));
233 FULL_PROXY_FUNC(unlocked_ioctl, long, filp,
234 		PROTO(struct file *filp, unsigned int cmd, unsigned long arg),
235 		ARGS(filp, cmd, arg));
237 static __poll_t full_proxy_poll(struct file *filp,  in full_proxy_poll()  argument
240 	struct dentry *dentry = F_DENTRY(filp);  in full_proxy_poll()
247 	real_fops = debugfs_real_fops(filp);  in full_proxy_poll()
248 	r = real_fops->poll(filp, wait);  in full_proxy_poll()
253 static int full_proxy_release(struct inode *inode, struct file *filp)  in full_proxy_release()  argument
255 	const struct dentry *dentry = F_DENTRY(filp);  in full_proxy_release()
256 	const struct file_operations *real_fops = debugfs_real_fops(filp);  in full_proxy_release()
257 	const struct file_operations *proxy_fops = filp->f_op;  in full_proxy_release()
267 		r = real_fops->release(inode, filp);  in full_proxy_release()
269 	replace_fops(filp, d_inode(dentry)->i_fop);  in full_proxy_release()
291 static int full_proxy_open(struct inode *inode, struct file *filp)  in full_proxy_open()  argument
293 	struct dentry *dentry = F_DENTRY(filp);  in full_proxy_open()
302 	real_fops = debugfs_real_fops(filp);  in full_proxy_open()
304 	r = debugfs_locked_down(inode, filp, real_fops);  in full_proxy_open()
323 	replace_fops(filp, proxy_fops);  in full_proxy_open()
326 		r = real_fops->open(inode, filp);  in full_proxy_open()
328 			replace_fops(filp, d_inode(dentry)->i_fop);  in full_proxy_open()
330 		} else if (filp->f_op != proxy_fops) {  in full_proxy_open()