diff options
| author | Nicolas Lacasse <nlacasse@google.com> | 2019-07-12 13:11:53 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-07-12 13:15:14 -0700 |
| commit | 8f11e257c9fbbde4ea2232f54313812a4c4a1fe9 (patch) | |
| tree | c5fb42cd563090c5df47d912de5a4068fdb54a65 | |
| parent | eff2c264a48611a714cb89f28693a18ac029886a (diff) | |
Take a reference on the already-mounted inode before re-mounting it.
PiperOrigin-RevId: 257855777
| -rw-r--r-- | runsc/boot/fs.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/runsc/boot/fs.go b/runsc/boot/fs.go index f9a6f2d3c..d3e3196fd 100644 --- a/runsc/boot/fs.go +++ b/runsc/boot/fs.go @@ -906,7 +906,10 @@ func (c *containerMounter) mountSharedSubmount(ctx context.Context, mns *fs.Moun } defer target.DecRef() + // Take a ref on the inode that is about to be (re)-mounted. + source.root.IncRef() if err := mns.Mount(ctx, target, source.root); err != nil { + source.root.DecRef() return fmt.Errorf("bind mount %q error: %v", mount.Destination, err) } |