When changing cgroup of multi-threaded process, only the main threads
cgroup actually changed. Now all threads of a process are enumerated
and cgroup is changed for each of them.
---
src/api.c | 26 +++++++++++++++++++++-----
1 file changed, 21 insertions(+), 5 deletions(-)
diff --git a/src/api.c b/src/api.c
index ef796ac..0bf0615 100644
--- a/src/api.c
+++ b/src/api.c
@@ -3293,10 +3293,13 @@ int cgroup_change_all_cgroups(void)
return -ECGOTHER;
while ((pid_dir = readdir(dir)) != NULL) {
- int err, pid;
+ int err, pid, tid;
uid_t euid;
gid_t egid;
char *procname = NULL;
+ DIR *tdir;
+ struct dirent *tid_dir = NULL;
+ char tpath[FILENAME_MAX] = { '\0' };
err = sscanf(pid_dir->d_name, "%i", &pid);
if (err < 1)
@@ -3310,11 +3313,24 @@ int cgroup_change_all_cgroups(void)
if (err)
continue;
- err = cgroup_change_cgroup_flags(euid,
- egid, procname, pid, CGFLAG_USECACHE);
- if (err)
- cgroup_dbg("cgroup change pid %i failed\n", pid);
+ snprintf(tpath, FILENAME_MAX, "%s%d/task/", path, pid);
+
+ tdir = opendir(tpath);
+ if (!tdir)
+ continue;
+
+ while ((tid_dir = readdir(tdir)) != NULL) {
+ err = sscanf(tid_dir->d_name, "%i", &tid);
+ if (err < 1)
+ continue;
+
+ err = cgroup_change_cgroup_flags(euid,
+ egid, procname, tid, CGFLAG_USECACHE);
+ if (err)
+ cgroup_dbg("cgroup change tid %i failed\n",
tid);
+ }
+ closedir(tdir);
free(procname);
}
--
2.4.3
------------------------------------------------------------------------------
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