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Silence cgroup warnings for non-existing PIDs

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When the kernel manages to reap a child process before we've moved it to
its proper cgroup it will return ESRCH (No such process), we can safely
ignore such errors for short-lived processes.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
This commit is contained in:
Joachim Wiberg committed 2026-02-22 20:36:34 +01:00
1 parent 8642007d0e
commit d47181a4a7
1 file changed
+4 -2
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src/cgroup.c
+4 -2
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@@ -190,7 +190,8 @@ int cgroup_move_pid(const char *group, const char *name, int pid, int delegate)
} }
if (rc) { if (rc) {
warn("Failed moving pid %d to cgroup %s", pid, path); if (errno != ESRCH)
warn("Failed moving pid %d to cgroup %s", pid, path);
return -1; return -1;
} }
} }
@@ -379,7 +380,8 @@ static int cgroup_leaf_init(const char *group, const char *name, int pid, const
if (!strcmp(group, "root")) if (!strcmp(group, "root"))
return fnwrite(str("%d", pid), FINIT_CGPATH "/cgroup.procs"); return fnwrite(str("%d", pid), FINIT_CGPATH "/cgroup.procs");
if (cgroup_move_pid(group, name, pid, delegate)) /* Error if error is not "No such process" */
if (cgroup_move_pid(group, name, pid, delegate) && errno != ESRCH)
err(1, "Failed moving pid %d to group %s/%s", pid, group, name); err(1, "Failed moving pid %d to group %s/%s", pid, group, name);
/* Set up inotify watch for cgroup cleanup */ /* Set up inotify watch for cgroup cleanup */