36 static long vfs_ioctl(struct file *filp, unsigned int cmd,  in vfs_ioctl()  argument
41 	if (!filp->f_op)  in vfs_ioctl()
44 	if (filp->f_op->unlocked_ioctl) {  in vfs_ioctl()
45 		error = filp->f_op->unlocked_ioctl(filp, cmd, arg);  in vfs_ioctl()
49 	} else if (filp->f_op->ioctl) {  in vfs_ioctl()
51 		error = filp->f_op->ioctl(filp->f_path.dentry->d_inode,  in vfs_ioctl()
52 					  filp, cmd, arg);  in vfs_ioctl()
60 static int ioctl_fibmap(struct file *filp, int __user *p)  in ioctl_fibmap()  argument
62 	struct address_space *mapping = filp->f_mapping;  in ioctl_fibmap()
184 static int ioctl_fiemap(struct file *filp, unsigned long arg)  in ioctl_fiemap()  argument
188 	struct inode *inode = filp->f_path.dentry->d_inode;  in ioctl_fiemap()
373 static int file_ioctl(struct file *filp, unsigned int cmd,  in file_ioctl()  argument
376 	struct inode *inode = filp->f_path.dentry->d_inode;  in file_ioctl()
381 		return ioctl_fibmap(filp, p);  in file_ioctl()
383 		return ioctl_fiemap(filp, arg);  in file_ioctl()
387 		return put_user(i_size_read(inode) - filp->f_pos, p);  in file_ioctl()
390 	return vfs_ioctl(filp, cmd, arg);  in file_ioctl()
393 static int ioctl_fionbio(struct file *filp, int __user *argp)  in ioctl_fionbio()  argument
408 		filp->f_flags |= flag;  in ioctl_fionbio()
410 		filp->f_flags &= ~flag;  in ioctl_fionbio()
414 static int ioctl_fioasync(unsigned int fd, struct file *filp,  in ioctl_fioasync()  argument
426 	if ((flag ^ filp->f_flags) & FASYNC) {  in ioctl_fioasync()
427 		if (filp->f_op && filp->f_op->fasync)  in ioctl_fioasync()
428 			error = filp->f_op->fasync(fd, filp, on);  in ioctl_fioasync()
436 		filp->f_flags |= FASYNC;  in ioctl_fioasync()
438 		filp->f_flags &= ~FASYNC;  in ioctl_fioasync()
442 static int ioctl_fsfreeze(struct file *filp)  in ioctl_fsfreeze()  argument
444 	struct super_block *sb = filp->f_path.dentry->d_inode->i_sb;  in ioctl_fsfreeze()
464 static int ioctl_fsthaw(struct file *filp)  in ioctl_fsthaw()  argument
466 	struct super_block *sb = filp->f_path.dentry->d_inode->i_sb;  in ioctl_fsthaw()
486 int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,  in do_vfs_ioctl()  argument
504 		error = ioctl_fionbio(filp, argp);  in do_vfs_ioctl()
511 		error = ioctl_fioasync(fd, filp, argp);  in do_vfs_ioctl()
516 		if (S_ISDIR(filp->f_path.dentry->d_inode->i_mode) ||  in do_vfs_ioctl()
517 		    S_ISREG(filp->f_path.dentry->d_inode->i_mode) ||  in do_vfs_ioctl()
518 		    S_ISLNK(filp->f_path.dentry->d_inode->i_mode)) {  in do_vfs_ioctl()
520 				inode_get_bytes(filp->f_path.dentry->d_inode);  in do_vfs_ioctl()
528 		error = ioctl_fsfreeze(filp);  in do_vfs_ioctl()
532 		error = ioctl_fsthaw(filp);  in do_vfs_ioctl()
536 		if (S_ISREG(filp->f_path.dentry->d_inode->i_mode))  in do_vfs_ioctl()
537 			error = file_ioctl(filp, cmd, arg);  in do_vfs_ioctl()
539 			error = vfs_ioctl(filp, cmd, arg);  in do_vfs_ioctl()
547 	struct file *filp;  in SYSCALL_DEFINE3()  local
551 	filp = fget_light(fd, &fput_needed);  in SYSCALL_DEFINE3()
552 	if (!filp)  in SYSCALL_DEFINE3()
555 	error = security_file_ioctl(filp, cmd, arg);  in SYSCALL_DEFINE3()
559 	error = do_vfs_ioctl(filp, fd, cmd, arg);  in SYSCALL_DEFINE3()
561 	fput_light(filp, fput_needed);  in SYSCALL_DEFINE3()