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ss: Tone down cgroup path resolution

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Sockets and cgroups have different lifetimes (e.g. fd passing between
cgroups) so obtaining a cgroup id to a removed cgroup dir is not an
error. Furthermore, the message is printed for each such a socket (which
is redundant each such socket's cgroup is shown as 'unreachable').
Improve user experience by silencing these specific errors.

Signed-off-by: Michal Koutný <mkoutny@suse.com>
This commit is contained in:
Michal Koutný 2025-02-21 10:29:26 +01:00 committed by Stephen Hemminger
parent 41710ace5e
commit 99c119a0de
1 changed files with 2 additions and 1 deletions
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3
lib/fs.c
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@ -223,7 +223,8 @@ char *get_cgroup2_path(__u64 id, bool full)
fd = open_by_handle_at(mnt_fd, fhp, 0);
if (fd < 0) {
fprintf(stderr, "Failed to open cgroup2 by ID\n");
if (errno != ESTALE)
fprintf(stderr, "Failed to open cgroup2 by ID\n");
goto out;
}