diff options
Diffstat (limited to 'kernel/bpf/helpers.c')
| -rw-r--r-- | kernel/bpf/helpers.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/kernel/bpf/helpers.c b/kernel/bpf/helpers.c index 5067f8d46872..1835df333287 100644 --- a/kernel/bpf/helpers.c +++ b/kernel/bpf/helpers.c @@ -2000,6 +2000,12 @@ __bpf_kfunc struct bpf_rb_node *bpf_rbtree_remove(struct bpf_rb_root *root, struct rb_root_cached *r = (struct rb_root_cached *)root; struct rb_node *n = (struct rb_node *)node; + if (!n->__rb_parent_color) + RB_CLEAR_NODE(n); + + if (RB_EMPTY_NODE(n)) + return NULL; + rb_erase_cached(n, r); RB_CLEAR_NODE(n); return (struct bpf_rb_node *)n; @@ -2328,7 +2334,7 @@ BTF_ID_FLAGS(func, bpf_list_pop_front, KF_ACQUIRE | KF_RET_NULL) BTF_ID_FLAGS(func, bpf_list_pop_back, KF_ACQUIRE | KF_RET_NULL) BTF_ID_FLAGS(func, bpf_task_acquire, KF_ACQUIRE | KF_RCU | KF_RET_NULL) BTF_ID_FLAGS(func, bpf_task_release, KF_RELEASE) -BTF_ID_FLAGS(func, bpf_rbtree_remove, KF_ACQUIRE) +BTF_ID_FLAGS(func, bpf_rbtree_remove, KF_ACQUIRE | KF_RET_NULL) BTF_ID_FLAGS(func, bpf_rbtree_add_impl) BTF_ID_FLAGS(func, bpf_rbtree_first, KF_RET_NULL) |