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bpf: Call maybe_wait_bpf_programs() only once for generic_map_update_batch()
Just like commit 9087c6ff8d
("bpf: Call maybe_wait_bpf_programs() only
once from generic_map_delete_batch()"), there is also no need to call
maybe_wait_bpf_programs() for each update in batched update, so only
call it once in generic_map_update_batch().
Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20231208102355.2628918-3-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
parent
c26f2a8901
commit
37ba5b59d6
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@ -203,7 +203,6 @@ static int bpf_map_update_value(struct bpf_map *map, struct file *map_file,
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rcu_read_unlock();
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}
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bpf_enable_instrumentation();
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maybe_wait_bpf_programs(map);
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return err;
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}
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@ -1577,6 +1576,7 @@ static int map_update_elem(union bpf_attr *attr, bpfptr_t uattr)
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}
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err = bpf_map_update_value(map, f.file, key, value, attr->flags);
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maybe_wait_bpf_programs(map);
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kvfree(value);
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free_key:
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@ -1816,6 +1816,8 @@ int generic_map_update_batch(struct bpf_map *map, struct file *map_file,
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kvfree(value);
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kvfree(key);
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maybe_wait_bpf_programs(map);
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return err;
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}
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