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

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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>
This commit is contained in:
Tobias Klauser
2020-09-22 07:02:32 +00:00
committed by Tobias Klauser
parent e10f822d58
commit aee5d888a8
18 changed files with 72 additions and 0 deletions
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unix/zerrors_linux.go
+1
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@@ -686,6 +686,7 @@ const (
FD_CLOEXEC = 0x1
FD_SETSIZE = 0x400
FF0 = 0x0
FIDEDUPERANGE = 0xc0189436
FSCRYPT_KEY_DESCRIPTOR_SIZE = 0x8
FSCRYPT_KEY_DESC_PREFIX = "fscrypt:"
FSCRYPT_KEY_DESC_PREFIX_SIZE = 0x8