unix: fix and test the FIDEDUPERANGE Linux ioctl

The previous implementation didn't match the ioctl spec.

Fixes golang/go#43678

Change-Id: Ia1c292c2dbd4913fb1d7e8331d9f18e23169d64a
GitHub-Last-Rev: 5331c424ef5dd0384afda9effbb76afd7705ecfd
GitHub-Pull-Request: golang/sys#97
Reviewed-on: https://go-review.googlesource.com/c/sys/+/284352
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
Trust: Ian Lance Taylor <iant@golang.org>
4 files changed
tree: 8a903b31eabfcf1cc4fbc97488daf16389f3695b
  1. cpu/
  2. execabs/
  3. internal/
  4. plan9/
  5. unix/
  6. windows/
  7. .gitattributes
  8. .gitignore
  9. AUTHORS
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. go.mod
  14. LICENSE
  15. PATENTS
  16. README.md
README.md

sys

Go Reference

This repository holds supplemental Go packages for low-level interactions with the operating system.

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The easiest way to install is to run go get -u golang.org/x/sys. You can also manually git clone the repository to $GOPATH/src/golang.org/x/sys.

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The main issue tracker for the sys repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/sys:” in the subject line, so it is easy to find.