diff options
Diffstat (limited to 'src/runtime/lfstack.go')
| -rw-r--r-- | src/runtime/lfstack.go | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/runtime/lfstack.go b/src/runtime/lfstack.go index 1261f54d97..db54ecb05e 100644 --- a/src/runtime/lfstack.go +++ b/src/runtime/lfstack.go @@ -3,6 +3,9 @@ // license that can be found in the LICENSE file. // Lock-free stack. +// Initialize head to 0, compare with 0 to test for emptiness. +// The stack does not keep pointers to nodes, +// so they can be garbage collected if there are no other pointers to nodes. // The following code runs only on g0 stack. package runtime |