48 #define F_DENTRY(filp) ((filp)->f_path.dentry)  argument
50 const struct file_operations *debugfs_real_fops(const struct file *filp)  in debugfs_real_fops()  argument
52 	struct debugfs_fsdata *fsd = F_DENTRY(filp)->d_fsdata;  in debugfs_real_fops()
155 			       struct file *filp,  in debugfs_locked_down()  argument
159 	    !(filp->f_mode & FMODE_WRITE) &&  in debugfs_locked_down()
171 static int open_proxy_open(struct inode *inode, struct file *filp)  in open_proxy_open()  argument
173 	struct dentry *dentry = F_DENTRY(filp);  in open_proxy_open()
181 	real_fops = debugfs_real_fops(filp);  in open_proxy_open()
183 	r = debugfs_locked_down(inode, filp, real_fops);  in open_proxy_open()
202 	replace_fops(filp, real_fops);  in open_proxy_open()
205 		r = real_fops->open(inode, filp);  in open_proxy_open()
219 #define FULL_PROXY_FUNC(name, ret_type, filp, proto, args)		\  argument
222 	struct dentry *dentry = F_DENTRY(filp);			\
229 	real_fops = debugfs_real_fops(filp);				\
235 FULL_PROXY_FUNC(llseek, loff_t, filp,
236 		PROTO(struct file *filp, loff_t offset, int whence),
237 		ARGS(filp, offset, whence));
239 FULL_PROXY_FUNC(read, ssize_t, filp,
240 		PROTO(struct file *filp, char __user *buf, size_t size,
242 		ARGS(filp, buf, size, ppos));
244 FULL_PROXY_FUNC(write, ssize_t, filp,
245 		PROTO(struct file *filp, const char __user *buf, size_t size,
247 		ARGS(filp, buf, size, ppos));
249 FULL_PROXY_FUNC(unlocked_ioctl, long, filp,
250 		PROTO(struct file *filp, unsigned int cmd, unsigned long arg),
251 		ARGS(filp, cmd, arg));
253 static __poll_t full_proxy_poll(struct file *filp,  in full_proxy_poll()  argument
256 	struct dentry *dentry = F_DENTRY(filp);  in full_proxy_poll()
263 	real_fops = debugfs_real_fops(filp);  in full_proxy_poll()
264 	r = real_fops->poll(filp, wait);  in full_proxy_poll()
269 static int full_proxy_release(struct inode *inode, struct file *filp)  in full_proxy_release()  argument
271 	const struct dentry *dentry = F_DENTRY(filp);  in full_proxy_release()
272 	const struct file_operations *real_fops = debugfs_real_fops(filp);  in full_proxy_release()
273 	const struct file_operations *proxy_fops = filp->f_op;  in full_proxy_release()
283 		r = real_fops->release(inode, filp);  in full_proxy_release()
285 	replace_fops(filp, d_inode(dentry)->i_fop);  in full_proxy_release()
307 static int full_proxy_open(struct inode *inode, struct file *filp)  in full_proxy_open()  argument
309 	struct dentry *dentry = F_DENTRY(filp);  in full_proxy_open()
318 	real_fops = debugfs_real_fops(filp);  in full_proxy_open()
320 	r = debugfs_locked_down(inode, filp, real_fops);  in full_proxy_open()
346 	replace_fops(filp, proxy_fops);  in full_proxy_open()
349 		r = real_fops->open(inode, filp);  in full_proxy_open()
351 			replace_fops(filp, d_inode(dentry)->i_fop);  in full_proxy_open()
353 		} else if (filp->f_op != proxy_fops) {  in full_proxy_open()