From: kernel test robot <lkp@intel.com>
To: Neeraj Upadhyay <quic_neeraju@quicinc.com>
Cc: kbuild-all@lists.01.org,
Linux Memory Management List <linux-mm@kvack.org>,
"Paul E. McKenney" <paulmck@kernel.org>
Subject: [linux-next:master 6371/6993] kernel/rcu/tree_nocb.h:1262 rcu_spawn_cpu_nocb_kthread() warn: inconsistent indenting
Date: Wed, 15 Dec 2021 11:05:05 +0800 [thread overview]
Message-ID: <202112151130.18unyr6u-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 0bafb8f3ebc84525d0ae0fcea22d12151b99312f
commit: fd1d05c6c00a3a6cbbb7156c1a99396df33f75b6 [6371/6993] rcu/nocb: Handle concurrent nocb kthreads creation
config: x86_64-randconfig-m001-20211214 (https://download.01.org/0day-ci/archive/20211215/202112151130.18unyr6u-lkp@intel.com/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
smatch warnings:
kernel/rcu/tree_nocb.h:1262 rcu_spawn_cpu_nocb_kthread() warn: inconsistent indenting
vim +1262 kernel/rcu/tree_nocb.h
1231
1232 /*
1233 * If the specified CPU is a no-CBs CPU that does not already have its
1234 * rcuo CB kthread, spawn it. Additionally, if the rcuo GP kthread
1235 * for this CPU's group has not yet been created, spawn it as well.
1236 */
1237 static void rcu_spawn_cpu_nocb_kthread(int cpu)
1238 {
1239 struct rcu_data *rdp = per_cpu_ptr(&rcu_data, cpu);
1240 struct rcu_data *rdp_gp;
1241 struct task_struct *t;
1242
1243 if (!rcu_scheduler_fully_active || !rcu_nocb_is_setup)
1244 return;
1245
1246 /* If there already is an rcuo kthread, then nothing to do. */
1247 if (rdp->nocb_cb_kthread)
1248 return;
1249
1250 /* If we didn't spawn the GP kthread first, reorganize! */
1251 rdp_gp = rdp->nocb_gp_rdp;
1252 mutex_lock(&rdp_gp->nocb_gp_kthread_mutex);
1253 if (!rdp_gp->nocb_gp_kthread) {
1254 t = kthread_run(rcu_nocb_gp_kthread, rdp_gp,
1255 "rcuog/%d", rdp_gp->cpu);
1256 if (WARN_ONCE(IS_ERR(t), "%s: Could not start rcuo GP kthread, OOM is now expected behavior\n", __func__)) {
1257 mutex_unlock(&rdp_gp->nocb_gp_kthread_mutex);
1258 return;
1259 }
1260 WRITE_ONCE(rdp_gp->nocb_gp_kthread, t);
1261 }
> 1262 mutex_unlock(&rdp_gp->nocb_gp_kthread_mutex);
1263
1264 /* Spawn the kthread for this CPU. */
1265 t = kthread_run(rcu_nocb_cb_kthread, rdp,
1266 "rcuo%c/%d", rcu_state.abbr, cpu);
1267 if (WARN_ONCE(IS_ERR(t), "%s: Could not start rcuo CB kthread, OOM is now expected behavior\n", __func__))
1268 return;
1269 WRITE_ONCE(rdp->nocb_cb_kthread, t);
1270 WRITE_ONCE(rdp->nocb_gp_kthread, rdp_gp->nocb_gp_kthread);
1271 }
1272
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
next reply other threads:[~2021-12-15 3:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-15 3:05 kernel test robot [this message]
2021-12-15 19:54 ` Paul E. McKenney
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202112151130.18unyr6u-lkp@intel.com \
--to=lkp@intel.com \
--cc=kbuild-all@lists.01.org \
--cc=linux-mm@kvack.org \
--cc=paulmck@kernel.org \
--cc=quic_neeraju@quicinc.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox