diff --git a/vendor/golang.org/x/sys/unix/zsyscall_linux_mips.go b/vendor/golang.org/x/sys/unix/zsyscall_linux_mips.go
index 054b218..c82ce7d 100644
--- a/vendor/golang.org/x/sys/unix/zsyscall_linux_mips.go
+++ b/vendor/golang.org/x/sys/unix/zsyscall_linux_mips.go
@@ -305,36 +305,6 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func keyctlRestrictKeyringByType(cmd int, arg2 int, keyType string, restriction string) (err error) {
-	var _p0 *byte
-	_p0, err = BytePtrFromString(keyType)
-	if err != nil {
-		return
-	}
-	var _p1 *byte
-	_p1, err = BytePtrFromString(restriction)
-	if err != nil {
-		return
-	}
-	_, _, e1 := Syscall6(SYS_KEYCTL, uintptr(cmd), uintptr(arg2), uintptr(unsafe.Pointer(_p0)), uintptr(unsafe.Pointer(_p1)), 0, 0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
-func keyctlRestrictKeyring(cmd int, arg2 int) (err error) {
-	_, _, e1 := Syscall(SYS_KEYCTL, uintptr(cmd), uintptr(arg2), 0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
 func ptrace(request int, pid int, addr uintptr, data uintptr) (err error) {
 	_, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
 	if e1 != 0 {
@@ -438,26 +408,6 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func Capget(hdr *CapUserHeader, data *CapUserData) (err error) {
-	_, _, e1 := RawSyscall(SYS_CAPGET, uintptr(unsafe.Pointer(hdr)), uintptr(unsafe.Pointer(data)), 0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
-func Capset(hdr *CapUserHeader, data *CapUserData) (err error) {
-	_, _, e1 := RawSyscall(SYS_CAPSET, uintptr(unsafe.Pointer(hdr)), uintptr(unsafe.Pointer(data)), 0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
 func Chdir(path string) (err error) {
 	var _p0 *byte
 	_p0, err = BytePtrFromString(path)
@@ -659,6 +609,17 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
+func fcntl(fd int, cmd int, arg int) (val int, err error) {
+	r0, _, e1 := Syscall(SYS_FCNTL, uintptr(fd), uintptr(cmd), uintptr(arg))
+	val = int(r0)
+	if e1 != 0 {
+		err = errnoErr(e1)
+	}
+	return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
 func Fdatasync(fd int) (err error) {
 	_, _, e1 := Syscall(SYS_FDATASYNC, uintptr(fd), 0, 0)
 	if e1 != 0 {
@@ -1420,12 +1381,8 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func signalfd(fd int, sigmask *Sigset_t, maskSize uintptr, flags int) (newfd int, err error) {
-	r0, _, e1 := Syscall6(SYS_SIGNALFD4, uintptr(fd), uintptr(unsafe.Pointer(sigmask)), uintptr(maskSize), uintptr(flags), 0, 0)
-	newfd = int(r0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
+func Signalfd(fd int, mask *Sigset_t, flags int) {
+	SyscallNoError(SYS_SIGNALFD4, uintptr(fd), uintptr(unsafe.Pointer(mask)), uintptr(flags))
 	return
 }
 
@@ -1597,108 +1554,6 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func readv(fd int, iovs []Iovec) (n int, err error) {
-	var _p0 unsafe.Pointer
-	if len(iovs) > 0 {
-		_p0 = unsafe.Pointer(&iovs[0])
-	} else {
-		_p0 = unsafe.Pointer(&_zero)
-	}
-	r0, _, e1 := Syscall(SYS_READV, uintptr(fd), uintptr(_p0), uintptr(len(iovs)))
-	n = int(r0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
-func writev(fd int, iovs []Iovec) (n int, err error) {
-	var _p0 unsafe.Pointer
-	if len(iovs) > 0 {
-		_p0 = unsafe.Pointer(&iovs[0])
-	} else {
-		_p0 = unsafe.Pointer(&_zero)
-	}
-	r0, _, e1 := Syscall(SYS_WRITEV, uintptr(fd), uintptr(_p0), uintptr(len(iovs)))
-	n = int(r0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
-func preadv(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr) (n int, err error) {
-	var _p0 unsafe.Pointer
-	if len(iovs) > 0 {
-		_p0 = unsafe.Pointer(&iovs[0])
-	} else {
-		_p0 = unsafe.Pointer(&_zero)
-	}
-	r0, _, e1 := Syscall6(SYS_PREADV, uintptr(fd), uintptr(_p0), uintptr(len(iovs)), uintptr(offs_l), uintptr(offs_h), 0)
-	n = int(r0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
-func pwritev(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr) (n int, err error) {
-	var _p0 unsafe.Pointer
-	if len(iovs) > 0 {
-		_p0 = unsafe.Pointer(&iovs[0])
-	} else {
-		_p0 = unsafe.Pointer(&_zero)
-	}
-	r0, _, e1 := Syscall6(SYS_PWRITEV, uintptr(fd), uintptr(_p0), uintptr(len(iovs)), uintptr(offs_l), uintptr(offs_h), 0)
-	n = int(r0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
-func preadv2(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr, flags int) (n int, err error) {
-	var _p0 unsafe.Pointer
-	if len(iovs) > 0 {
-		_p0 = unsafe.Pointer(&iovs[0])
-	} else {
-		_p0 = unsafe.Pointer(&_zero)
-	}
-	r0, _, e1 := Syscall6(SYS_PREADV2, uintptr(fd), uintptr(_p0), uintptr(len(iovs)), uintptr(offs_l), uintptr(offs_h), uintptr(flags))
-	n = int(r0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
-func pwritev2(fd int, iovs []Iovec, offs_l uintptr, offs_h uintptr, flags int) (n int, err error) {
-	var _p0 unsafe.Pointer
-	if len(iovs) > 0 {
-		_p0 = unsafe.Pointer(&iovs[0])
-	} else {
-		_p0 = unsafe.Pointer(&_zero)
-	}
-	r0, _, e1 := Syscall6(SYS_PWRITEV2, uintptr(fd), uintptr(_p0), uintptr(len(iovs)), uintptr(offs_l), uintptr(offs_h), uintptr(flags))
-	n = int(r0)
-	if e1 != 0 {
-		err = errnoErr(e1)
-	}
-	return
-}
-
-// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
-
 func munmap(addr uintptr, length uintptr) (err error) {
 	_, _, e1 := Syscall(SYS_MUNMAP, uintptr(addr), uintptr(length), 0)
 	if e1 != 0 {
@@ -2051,9 +1906,8 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func setfsgid(gid int) (prev int, err error) {
-	r0, _, e1 := Syscall(SYS_SETFSGID, uintptr(gid), 0, 0)
-	prev = int(r0)
+func Setfsgid(gid int) (err error) {
+	_, _, e1 := Syscall(SYS_SETFSGID, uintptr(gid), 0, 0)
 	if e1 != 0 {
 		err = errnoErr(e1)
 	}
@@ -2062,9 +1916,8 @@
 
 // THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
 
-func setfsuid(uid int) (prev int, err error) {
-	r0, _, e1 := Syscall(SYS_SETFSUID, uintptr(uid), 0, 0)
-	prev = int(r0)
+func Setfsuid(uid int) (err error) {
+	_, _, e1 := Syscall(SYS_SETFSUID, uintptr(uid), 0, 0)
 	if e1 != 0 {
 		err = errnoErr(e1)
 	}