diff options
Diffstat (limited to 'kernel/bpf/syscall.c')
| -rw-r--r-- | kernel/bpf/syscall.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c index 4e88797fdbeb..5d2420492946 100644 --- a/kernel/bpf/syscall.c +++ b/kernel/bpf/syscall.c @@ -835,8 +835,14 @@ static void bpf_map_free(struct bpf_map *map) struct btf_record *rec = map->record; struct btf *btf = map->btf; - /* implementation dependent freeing */ + /* implementation dependent freeing. Disabling migration to simplify + * the free of values or special fields allocated from bpf memory + * allocator. + */ + migrate_disable(); map->ops->map_free(map); + migrate_enable(); + /* Delay freeing of btf_record for maps, as map_free * callback usually needs access to them. It is better to do it here * than require each callback to do the free itself manually. |