diff options
| -rw-r--r-- | kernel/bpf/range_tree.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/kernel/bpf/range_tree.c b/kernel/bpf/range_tree.c index f7915ab0a6d3..5bdf9aadca3a 100644 --- a/kernel/bpf/range_tree.c +++ b/kernel/bpf/range_tree.c @@ -150,7 +150,9 @@ int range_tree_clear(struct range_tree *rt, u32 start, u32 len) range_it_insert(rn, rt); /* Add a range */ + migrate_disable(); new_rn = bpf_mem_alloc(&bpf_global_ma, sizeof(struct range_node)); + migrate_enable(); if (!new_rn) return -ENOMEM; new_rn->rn_start = last + 1; @@ -170,7 +172,9 @@ int range_tree_clear(struct range_tree *rt, u32 start, u32 len) } else { /* in the middle of the clearing range */ range_it_remove(rn, rt); + migrate_disable(); bpf_mem_free(&bpf_global_ma, rn); + migrate_enable(); } } return 0; @@ -223,7 +227,9 @@ int range_tree_set(struct range_tree *rt, u32 start, u32 len) range_it_remove(right, rt); left->rn_last = right->rn_last; range_it_insert(left, rt); + migrate_disable(); bpf_mem_free(&bpf_global_ma, right); + migrate_enable(); } else if (left) { /* Combine with the left range */ range_it_remove(left, rt); @@ -235,7 +241,9 @@ int range_tree_set(struct range_tree *rt, u32 start, u32 len) right->rn_start = start; range_it_insert(right, rt); } else { + migrate_disable(); left = bpf_mem_alloc(&bpf_global_ma, sizeof(struct range_node)); + migrate_enable(); if (!left) return -ENOMEM; left->rn_start = start; @@ -251,7 +259,9 @@ void range_tree_destroy(struct range_tree *rt) while ((rn = range_it_iter_first(rt, 0, -1U))) { range_it_remove(rn, rt); + migrate_disable(); bpf_mem_free(&bpf_global_ma, rn); + migrate_enable(); } } |