bpf: Remove unused member rcu from bpf_struct_ops_map

The rcu member in bpf_struct_ops_map is not used after commit
b671c2067a04 ("bpf: Retire the struct_ops map kvalue->refcnt.")

Remove it.

Suggested-by: Martin KaFai Lau <martin.lau@linux.dev>
Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Link: https://lore.kernel.org/r/20241112145849.3436772-2-xukuohai@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
index fda3dd2ee9844fec459c6dfa62d21c00da98a67c..40a93e6904737293f24377e9501bebf2e9afa2e3 100644 (file)
--- a/kernel/bpf/bpf_struct_ops.c
+++ b/kernel/bpf/bpf_struct_ops.c
@@ -23,7 +23,6 @@ struct bpf_struct_ops_value {
 
 struct bpf_struct_ops_map {
        struct bpf_map map;
-       struct rcu_head rcu;
        const struct bpf_struct_ops_desc *st_ops_desc;
        /* protect map_update */
        struct mutex lock;