906 static ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,  in vfs_readv()  argument
914 	ret = import_iovec(READ, vec, vlen, ARRAY_SIZE(iovstack), &iov, &iter);  in vfs_readv()
923 static ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,  in vfs_writev()  argument
931 	ret = import_iovec(WRITE, vec, vlen, ARRAY_SIZE(iovstack), &iov, &iter);  in vfs_writev()
941 static ssize_t do_readv(unsigned long fd, const struct iovec __user *vec,  in do_readv()  argument
953 		ret = vfs_readv(f.file, vec, vlen, ppos, flags);  in do_readv()
965 static ssize_t do_writev(unsigned long fd, const struct iovec __user *vec,  in do_writev()  argument
977 		ret = vfs_writev(f.file, vec, vlen, ppos, flags);  in do_writev()
995 static ssize_t do_preadv(unsigned long fd, const struct iovec __user *vec,  in do_preadv()  argument
1008 			ret = vfs_readv(f.file, vec, vlen, &pos, flags);  in do_preadv()
1018 static ssize_t do_pwritev(unsigned long fd, const struct iovec __user *vec,  in do_pwritev()  argument
1031 			ret = vfs_writev(f.file, vec, vlen, &pos, flags);  in do_pwritev()
1041 SYSCALL_DEFINE3(readv, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE3()  argument
1044 	return do_readv(fd, vec, vlen, 0);  in SYSCALL_DEFINE3()
1047 SYSCALL_DEFINE3(writev, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE3()  argument
1050 	return do_writev(fd, vec, vlen, 0);  in SYSCALL_DEFINE3()
1053 SYSCALL_DEFINE5(preadv, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE5()  argument
1058 	return do_preadv(fd, vec, vlen, pos, 0);  in SYSCALL_DEFINE5()
1061 SYSCALL_DEFINE6(preadv2, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE6()  argument
1068 		return do_readv(fd, vec, vlen, flags);  in SYSCALL_DEFINE6()
1070 	return do_preadv(fd, vec, vlen, pos, flags);  in SYSCALL_DEFINE6()
1073 SYSCALL_DEFINE5(pwritev, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE5()  argument
1078 	return do_pwritev(fd, vec, vlen, pos, 0);  in SYSCALL_DEFINE5()
1081 SYSCALL_DEFINE6(pwritev2, unsigned long, fd, const struct iovec __user *, vec,  in SYSCALL_DEFINE6()  argument
1088 		return do_writev(fd, vec, vlen, flags);  in SYSCALL_DEFINE6()
1090 	return do_pwritev(fd, vec, vlen, pos, flags);  in SYSCALL_DEFINE6()
1101 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE4()  argument
1104 	return do_preadv(fd, vec, vlen, pos, 0);  in COMPAT_SYSCALL_DEFINE4()
1109 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE5()  argument
1114 	return do_preadv(fd, vec, vlen, pos, 0);  in COMPAT_SYSCALL_DEFINE5()
1119 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE5()  argument
1123 		return do_readv(fd, vec, vlen, flags);  in COMPAT_SYSCALL_DEFINE5()
1124 	return do_preadv(fd, vec, vlen, pos, flags);  in COMPAT_SYSCALL_DEFINE5()
1129 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE6()  argument
1136 		return do_readv(fd, vec, vlen, flags);  in COMPAT_SYSCALL_DEFINE6()
1137 	return do_preadv(fd, vec, vlen, pos, flags);  in COMPAT_SYSCALL_DEFINE6()
1142 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE4()  argument
1145 	return do_pwritev(fd, vec, vlen, pos, 0);  in COMPAT_SYSCALL_DEFINE4()
1150 		const struct iovec __user *,vec,  in COMPAT_SYSCALL_DEFINE5()  argument
1155 	return do_pwritev(fd, vec, vlen, pos, 0);  in COMPAT_SYSCALL_DEFINE5()
1160 		const struct iovec __user *, vec,  in COMPAT_SYSCALL_DEFINE5()  argument
1164 		return do_writev(fd, vec, vlen, flags);  in COMPAT_SYSCALL_DEFINE5()
1165 	return do_pwritev(fd, vec, vlen, pos, flags);  in COMPAT_SYSCALL_DEFINE5()
1170 		const struct iovec __user *,vec,  in COMPAT_SYSCALL_DEFINE6()  argument
1176 		return do_writev(fd, vec, vlen, flags);  in COMPAT_SYSCALL_DEFINE6()
1177 	return do_pwritev(fd, vec, vlen, pos, flags);  in COMPAT_SYSCALL_DEFINE6()