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Diffstat (limited to 'pkg/sentry/fs/overlay.go')
| -rw-r--r-- | pkg/sentry/fs/overlay.go | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/pkg/sentry/fs/overlay.go b/pkg/sentry/fs/overlay.go index a63f00e0e..7357d6401 100644 --- a/pkg/sentry/fs/overlay.go +++ b/pkg/sentry/fs/overlay.go @@ -16,6 +16,7 @@ package fs import ( "fmt" + "strings" "sync" "gvisor.googlesource.com/gvisor/pkg/log" @@ -76,6 +77,12 @@ func XattrOverlayWhiteout(name string) string { return XattrOverlayWhiteoutPrefix + name } +// isXattrOverlay returns whether the given extended attribute configures the +// overlay. +func isXattrOverlay(name string) bool { + return strings.HasPrefix(name, XattrOverlayPrefix) +} + // NewOverlayRoot produces the root of an overlay. // // Preconditions: |