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btrfs: test btrfs snapshots with driver suite

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We now include btrfs in the snapshot driver test suite. This includes
the addition of parent links and name hashing into the btrfs driver.
We'll probably endup replacing this with a common metadata store, as
these relationships are generally identical between implementations.

A small bug was discovered in the delete implementation in the course
testing, so the btrfs package has been updated with a fix.

The overlay driver was modified accordingly with the btrfs driver to use
`Driver` as the exported type of each driver packge.

Signed-off-by: Stephen J Day <stephen.day@docker.com>
This commit is contained in:
Stephen J Day 2017-02-03 14:20:05 -08:00
parent 127882fca7
commit aeffd4f92c
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GPG key ID: 67B3DED84EDC823F
7 changed files with 276 additions and 71 deletions
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4
vendor/github.com/stevvooe/go-btrfs/btrfs.go generated vendored
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@ -328,11 +328,11 @@ func SubvolDelete(path string) error {
}
if err := isFileInfoSubvol(fi); err != nil {
return err
return nil
}
if err := SubvolDelete(p); err != nil {
return err
return errors.Wrapf(err, "recursive delete of %v failed", p)
}
return filepath.SkipDir // children get walked by call above.