commit aee5d888a86055dc6ab0342f9cdc7b53aaeaec62
author Tobias Klauser <tklauser@distanz.ch> Mon Sep 21 10:55:12 2020 +0200
committer Tobias Klauser <tobias.klauser@gmail.com> Tue Sep 22 07:02:32 2020 +0000
tree fda1f4e1c7fc8fab120fc5f3cd355119e08edbb0
parent e10f822d58a04b7826965b45df0e166c460f499c

unix: add IoctlFile{Clone,CloneRange,DedupeRange} on linux

Add wrappers for the FICLONE, FICLONERANGE and FIDEDUPERANGE ioctl
operations on linux. See the ioctl_ficlone(2), ioctl_ficlonerange(2) and
ioctl_fideduperange(2) man pages for details.

Change-Id: If3bad98facc362d4f7524e8d7a128815e9e2f204
Reviewed-on: https://go-review.googlesource.com/c/sys/+/256000
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>

unix/zerrors_linux_amd64.go

diff --git a/unix/zerrors_linux_amd64.go b/unix/zerrors_linux_amd64.go
index f92cff6..82fc93c 100644
--- a/unix/zerrors_linux_amd64.go
+++ b/unix/zerrors_linux_amd64.go
@@ -71,6 +71,8 @@
 	EXTPROC                          = 0x10000
 	FF1                              = 0x8000
 	FFDLY                            = 0x8000
+	FICLONE                          = 0x40049409
+	FICLONERANGE                     = 0x4020940d
 	FLUSHO                           = 0x1000
 	FP_XSTATE_MAGIC2                 = 0x46505845
 	FS_IOC_ENABLE_VERITY             = 0x40806685