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-rw-r--r--pkg/sentry/fs/filesystems.go14
-rw-r--r--pkg/sentry/fs/host/tty.go6
2 files changed, 3 insertions, 17 deletions
diff --git a/pkg/sentry/fs/filesystems.go b/pkg/sentry/fs/filesystems.go
index 084da2a8d..d41f30bbb 100644
--- a/pkg/sentry/fs/filesystems.go
+++ b/pkg/sentry/fs/filesystems.go
@@ -87,20 +87,6 @@ func RegisterFilesystem(f Filesystem) {
filesystems.registered[f.Name()] = f
}
-// UnregisterFilesystem removes a file system from the global set. To keep the
-// file system set compatible with save/restore, UnregisterFilesystem must be
-// called before save/restore methods.
-//
-// For instance, packages may unregister their file system after it is mounted.
-// This makes sense for pseudo file systems that should not be visible or
-// mountable. See whitelistfs in fs/host/fs.go for one example.
-func UnregisterFilesystem(name string) {
- filesystems.mu.Lock()
- defer filesystems.mu.Unlock()
-
- delete(filesystems.registered, name)
-}
-
// FindFilesystem returns a Filesystem registered at name or (nil, false) if name
// is not a file system type that can be found in /proc/filesystems.
func FindFilesystem(name string) (Filesystem, bool) {
diff --git a/pkg/sentry/fs/host/tty.go b/pkg/sentry/fs/host/tty.go
index cb91355ab..82a02fcb2 100644
--- a/pkg/sentry/fs/host/tty.go
+++ b/pkg/sentry/fs/host/tty.go
@@ -308,9 +308,9 @@ func (t *TTYFileOperations) checkChange(ctx context.Context, sig linux.Signal) e
task := kernel.TaskFromContext(ctx)
if task == nil {
// No task? Linux does not have an analog for this case, but
- // tty_check_change is more of a blacklist of cases than a
- // whitelist, and is surprisingly permissive. Allowing the
- // change seems most appropriate.
+ // tty_check_change only blocks specific cases and is
+ // surprisingly permissive. Allowing the change seems
+ // appropriate.
return nil
}