diff options
Diffstat (limited to 'vendor/github.com/cilium/ebpf/doc.go')
| -rw-r--r-- | vendor/github.com/cilium/ebpf/doc.go | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/vendor/github.com/cilium/ebpf/doc.go b/vendor/github.com/cilium/ebpf/doc.go index f7f34da8f..396b3394d 100644 --- a/vendor/github.com/cilium/ebpf/doc.go +++ b/vendor/github.com/cilium/ebpf/doc.go @@ -13,4 +13,13 @@ // your application as any other resource. // // Use the link subpackage to attach a loaded program to a hook in the kernel. +// +// Note that losing all references to Map and Program resources will cause +// their underlying file descriptors to be closed, potentially removing those +// objects from the kernel. Always retain a reference by e.g. deferring a +// Close() of a Collection or LoadAndAssign object until application exit. +// +// Special care needs to be taken when handling maps of type ProgramArray, +// as the kernel erases its contents when the last userspace or bpffs +// reference disappears, regardless of the map being in active use. package ebpf |