mainline inclusion
from mainline-5.17-rc1
commit 8ba28587
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5EUVD
CVE: NA

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8ba285874913da21ca39a46376e9cc5ce0f45f94

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Free up memory and resources used by temporary allocated memstream and
btf_dump instance.
Signed-off-by: NAndrii Nakryiko <andrii@kernel.org>
Signed-off-by: NAlexei Starovoitov <ast@kernel.org>
Reviewed-by: NHengqi Chen <hengqi.chen@gmail.com>
Link: https://lore.kernel.org/bpf/20211107165521.9240-4-andrii@kernel.org
(cherry picked from commit 8ba28587)
Signed-off-by: NWang Yufen <wangyufen@huawei.com>