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Diffstat (limited to 'pkg/util/mountOpts.go')
-rw-r--r--pkg/util/mountOpts.go7
1 files changed, 6 insertions, 1 deletions
diff --git a/pkg/util/mountOpts.go b/pkg/util/mountOpts.go
index b3a38f286..f13dc94ec 100644
--- a/pkg/util/mountOpts.go
+++ b/pkg/util/mountOpts.go
@@ -25,7 +25,7 @@ type defaultMountOptions struct {
// The sourcePath variable, if not empty, contains a bind mount source.
func ProcessOptions(options []string, isTmpfs bool, sourcePath string) ([]string, error) {
var (
- foundWrite, foundSize, foundProp, foundMode, foundExec, foundSuid, foundDev, foundCopyUp, foundBind, foundZ bool
+ foundWrite, foundSize, foundProp, foundMode, foundExec, foundSuid, foundDev, foundCopyUp, foundBind, foundZ, foundU bool
)
newOptions := make([]string, 0, len(options))
@@ -116,6 +116,11 @@ func ProcessOptions(options []string, isTmpfs bool, sourcePath string) ([]string
return nil, errors.Wrapf(ErrDupeMntOption, "only one of 'z' and 'Z' can be used")
}
foundZ = true
+ case "U":
+ if foundU {
+ return nil, errors.Wrapf(ErrDupeMntOption, "the 'U' option can only be set once")
+ }
+ foundU = true
default:
return nil, errors.Wrapf(ErrBadMntOption, "unknown mount option %q", opt)
}