[PATCH bpf-next v3 5/7] bpf: Enable sleeptable support for cgrp local storage

[Yonghong Song <yhs@fb.com>]

With proper bpf_rcu_read_lock() support, sleepable support for cgrp local
storage can be enabled as typical use case task->cgroups->dfl_cgrp
can be protected with bpf_rcu_read_lock().

Signed-off-by: Yonghong Song <yhs@fb.com>
---
 kernel/bpf/verifier.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
index 2aa140dceb9a..92cd1cf64026 100644
--- a/kernel/bpf/verifier.c
+++ b/kernel/bpf/verifier.c
@@ -12958,10 +12958,11 @@ static int check_map_prog_compatibility(struct bpf_verifier_env *env,
 		case BPF_MAP_TYPE_INODE_STORAGE:
 		case BPF_MAP_TYPE_SK_STORAGE:
 		case BPF_MAP_TYPE_TASK_STORAGE:
+		case BPF_MAP_TYPE_CGRP_STORAGE:
 			break;
 		default:
 			verbose(env,
-				"Sleepable programs can only use array, hash, and ringbuf maps\n");
+				"Sleepable programs can only use array, hash, ringbuf and local storage maps\n");
 			return -EINVAL;
 		}
 
-- 
2.30.2