752 		struct iovec iovec = iov_iter_iovec(iter);  in do_loop_readv_writev()  local
756 			nr = filp->f_op->read(filp, iovec.iov_base,  in do_loop_readv_writev()
757 					      iovec.iov_len, ppos);  in do_loop_readv_writev()
759 			nr = filp->f_op->write(filp, iovec.iov_base,  in do_loop_readv_writev()
760 					       iovec.iov_len, ppos);  in do_loop_readv_writev()
769 		if (nr != iovec.iov_len)  in do_loop_readv_writev()
906 static ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,  in vfs_readv()
909 	struct iovec iovstack[UIO_FASTIOV];  in vfs_readv()
910 	struct iovec *iov = iovstack;  in vfs_readv()
923 static ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,  in vfs_writev()
926 	struct iovec iovstack[UIO_FASTIOV];  in vfs_writev()
927 	struct iovec *iov = iovstack;  in vfs_writev()
941 static ssize_t do_readv(unsigned long fd, const struct iovec __user *vec,  in do_readv()
965 static ssize_t do_writev(unsigned long fd, const struct iovec __user *vec,  in do_writev()
995 static ssize_t do_preadv(unsigned long fd, const struct iovec __user *vec,  in do_preadv()
1018 static ssize_t do_pwritev(unsigned long fd, const struct iovec __user *vec,  in do_pwritev()
1041 SYSCALL_DEFINE3(readv, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE3()
1047 SYSCALL_DEFINE3(writev, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE3()
1053 SYSCALL_DEFINE5(preadv, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE5()
1061 SYSCALL_DEFINE6(preadv2, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE6()
1073 SYSCALL_DEFINE5(pwritev, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE5()
1081 SYSCALL_DEFINE6(pwritev2, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE6()
1101 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE4()
1109 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE5()
1119 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE5()
1129 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE6()
1142 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE4()
1150 		const struct iovec __user *,vec,  in COMPAT_SYSCALL_DEFINE5()
1160 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE5()
1170 		const struct iovec __user *,vec,  in COMPAT_SYSCALL_DEFINE6()