golang
diff --git a/‎unix/linux/types.go
+1 b/‎unix/linux/types.go
+1
diff --git a/‎unix/ztypes_linux.go
+1 b/‎unix/ztypes_linux.go
+1
@@ -1115,6 +1115,7 @@ const (
 	PerfBitCommExec                      = CBitFieldMaskBit24
 	PerfBitUseClockID                    = CBitFieldMaskBit25
 	PerfBitContextSwitch                 = CBitFieldMaskBit26
+	PerfBitWriteBackward                 = CBitFieldMaskBit27
 )
 
 // generated by:
Original file line number	Diff line number	Diff line change
`@@ -1115,6 +1115,7 @@ const (`
`1115`	`1115`	`PerfBitCommExec = CBitFieldMaskBit24`
`1116`	`1116`	`PerfBitUseClockID = CBitFieldMaskBit25`
`1117`	`1117`	`PerfBitContextSwitch = CBitFieldMaskBit26`
	`1118`	`+ PerfBitWriteBackward = CBitFieldMaskBit27`
`1118`	`1119`	`)`
`1119`	`1120`
`1120`	`1121`	`// generated by:`