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Replace errors.Cause() with errors.Is() / errors.As()

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Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn 2020-04-17 12:01:01 +02:00
parent 45369c61a4
commit 07d60bc257
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23 changed files with 50 additions and 45 deletions
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10
daemon/graphdriver/aufs/mount.go
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@ -42,18 +42,14 @@ func Unmount(target string) error {
var err error
for i := 0; i < retries; i++ {
err = mount.Unmount(target)
switch errors.Cause(err) {
case nil:
return nil
case unix.EBUSY:
if err != nil && errors.Is(err, unix.EBUSY) {
logger.Debugf("aufs unmount %s failed with EBUSY (retrying %d/%d)", target, i+1, retries)
time.Sleep(100 * time.Millisecond)
continue // try again
default:
// any other error is fatal
return err
}
break
}
// either no error occurred, or another error
return err
}