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Fri, 06 Jun 2025 23:42:41 -0700 (PDT) Date: Sat, 7 Jun 2025 14:42:22 -0400 From: Wei Gao To: Michal =?iso-8859-1?Q?Koutn=FD?= Cc: Petr Vorel , ltp@lists.linux.it, Li Wang , cgroups@vger.kernel.org Subject: Re: [LTP] [PATCH v1] sched_rr_get_interval01.c: Put test process into absolute root cgroup (0::/) Message-ID: References: <20250605142943.229010-1-wegao@suse.com> <20250605094019.GA1206250@pevik> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: On Thu, Jun 05, 2025 at 05:56:11PM +0200, Michal Koutný wrote: > On Thu, Jun 05, 2025 at 11:40:19AM +0200, Petr Vorel wrote: > > @Michal @Li WDYT? > > RT_GROUP scheduling is v1 feature as of now. > > Testing cgroup v2 makes only sense with > CONFIG_RT_GROUP_SCHED=y and CONFIG_RT_GROUP_SCHED_DEFAULT_DISABLED=y > (this combination is equivalent to CONFIG_RT_GROUP_SCHED=n on v2). @Michal Koutný So we should skip test cgroupv2 with CONFIG_RT_GROUP_SCHED=yes, correct? Like following change? diff --git a/testcases/kernel/syscalls/sched_rr_get_interval/sched_rr_get_interval01.c b/testcases/kernel/syscalls/sched_rr_get_interval/sched_rr_get_interval01.c index 55516ec89..b12bd7857 100644 --- a/testcases/kernel/syscalls/sched_rr_get_interval/sched_rr_get_interval01.c +++ b/testcases/kernel/syscalls/sched_rr_get_interval/sched_rr_get_interval01.c @@ -43,10 +43,9 @@ static void setup(void) tp.type = tv->ts_type; + static const char * const kconf[] = {"CONFIG_RT_GROUP_SCHED=y", NULL}; + if ((access("/sys/fs/cgroup/cgroup.controllers", F_OK) == 0) && !tst_kconfig_check(kconf_strict)) { + tst_brk(TCONF, "CONFIG_RT_GROUP_SCHED not support on cgroupv2"); + } > > HTH, > Michal