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selftests/bpf: Fix umount cgroup2 error in test_sockmap

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[ Upstream commit d75142dbeb ]

This patch fixes the following "umount cgroup2" error in test_sockmap.c:

 (cgroup_helpers.c:353: errno: Device or resource busy) umount cgroup2

Cgroup fd cg_fd should be closed before cleanup_cgroup_environment().

Fixes: 13a5f3ffd2 ("bpf: Selftests, sockmap test prog run without setting cgroup")
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/r/0399983bde729708773416b8488bac2cd5e022b8.1712639568.git.tanggeliang@kylinos.cn
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Geliang Tang 2024-04-09 13:18:40 +08:00 committed by Greg Kroah-Hartman
parent d09a8f2d30
commit 83ca1efe50
1 changed files with 1 additions and 1 deletions
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2
tools/testing/selftests/bpf/test_sockmap.c
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@ -2014,9 +2014,9 @@ out:
free(options.whitelist);
if (options.blacklist)
free(options.blacklist);
close(cg_fd);
if (cg_created)
cleanup_cgroup_environment();
close(cg_fd);
return err;
}