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bpf: Remove unnecessary wait from bpf_map_copy_value()

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Both map_lookup_elem() and generic_map_lookup_batch() use
bpf_map_copy_value() to lookup and copy the value, and there is no
update operation in bpf_map_copy_value(), so just remove the invocation
of maybe_wait_bpf_programs() from it.

Fixes: 15c14a3dca ("bpf: Add bpf_map_{value_size, update_value, map_copy_value} functions")
Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20231208102355.2628918-2-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Hou Tao 2023-12-08 18:23:49 +08:00 committed by Alexei Starovoitov
parent 32fa058398
commit c26f2a8901
1 changed files with 0 additions and 1 deletions
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kernel/bpf/syscall.c
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@ -264,7 +264,6 @@ static int bpf_map_copy_value(struct bpf_map *map, void *key, void *value,
}
bpf_enable_instrumentation();
maybe_wait_bpf_programs(map);
return err;
}