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| author | gVisor bot <gvisor-bot@google.com> | 2019-07-12 13:11:01 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-07-12 13:11:01 -0700 |
| commit | eff2c264a48611a714cb89f28693a18ac029886a (patch) | |
| tree | c1adf06c534a2ce971efe52b13d2422acdd436a4 /pkg/sentry/fs/proc/task.go | |
| parent | 69e0affaecda24b4d193e4592202b55b53afecc3 (diff) | |
| parent | f957fb23cf68e72084c7b50569242a07997f96bc (diff) | |
Merge pull request #282 from zhangningdlut:chris_test_proc
PiperOrigin-RevId: 257855479
Diffstat (limited to 'pkg/sentry/fs/proc/task.go')
| -rw-r--r-- | pkg/sentry/fs/proc/task.go | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/pkg/sentry/fs/proc/task.go b/pkg/sentry/fs/proc/task.go index ef0ca3301..d82d4e998 100644 --- a/pkg/sentry/fs/proc/task.go +++ b/pkg/sentry/fs/proc/task.go @@ -162,6 +162,11 @@ func (f *subtasksFile) Readdir(ctx context.Context, file *fs.File, ser fs.Dentry // subtask to emit. offset := file.Offset() + tasks := f.t.ThreadGroup().MemberIDs(f.pidns) + if len(tasks) == 0 { + return offset, syserror.ENOENT + } + if offset == 0 { // Serialize "." and "..". root := fs.RootFromContext(ctx) @@ -178,7 +183,6 @@ func (f *subtasksFile) Readdir(ctx context.Context, file *fs.File, ser fs.Dentry } // Serialize tasks. - tasks := f.t.ThreadGroup().MemberIDs(f.pidns) taskInts := make([]int, 0, len(tasks)) for _, tid := range tasks { taskInts = append(taskInts, int(tid)) |