github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 09:36:22 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

selftests/cgroup: fix child process escaping to parent cleanup in test_cpucg_nice

Browse Source 
In test_cpucg_nice, the forked child process incorrectly jumps to the
parent's cleanup label on cg_write failure. This causes the child to
attempt cg_destroy on cgroups the parent is still using, and then
return to main() to continue executing tests as if it were the parent.

Replace goto cleanup with exit(EXIT_FAILURE) in the child process.

Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Tao Cui 2026-05-11 14:15:08 +08:00 committed by Tejun Heo
parent c26849d321
commit 5b72759aa0
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/testing/selftests/cgroup/test_cpu.c
View File

@ -278,7 +278,7 @@ static int test_cpucg_nice(const char *root)
char buf[64];
snprintf(buf, sizeof(buf), "%d", getpid());
if (cg_write(cpucg, "cgroup.procs", buf))
goto cleanup;
exit(EXIT_FAILURE);
/* Try to keep niced CPU usage as constrained to hog_cpu as possible */
nice(1);