From: "Zhang, Qiang" <Qiang.Zhang@windriver.com>
To: Joel Fernandes <joel@joelfernandes.org>,
"paulmck@kernel.org" <paulmck@kernel.org>
Cc: Uladzislau Rezki <urezki@gmail.com>,
Josh Triplett <josh@joshtriplett.org>,
Steven Rostedt <rostedt@goodmis.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Lai Jiangshan <jiangshanlai@gmail.com>, rcu <rcu@vger.kernel.org>,
LKML <linux-kernel@vger.kernel.org>
Subject:
Date: Wed, 9 Sep 2020 06:35:15 +0000 [thread overview]
Message-ID: <BYAPR11MB263285B19261BE8096D87F65FF260@BYAPR11MB2632.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20200821153328.GH2855@paulmck-ThinkPad-P72>
When config preempt RCU, if task switch happened in rcu read critical region.
the current task be add to "rnp->blkd_tasks" link list, these rnp is leaf node in RCU tree.
In "rcu_gp_fqs_loop" func,
static void rcu_gp_fqs_loop(void)
{
struct rcu_node *rnp = rcu_get_root();
}
next prev parent reply other threads:[~2020-09-09 6:35 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-14 6:45 [PATCH] rcu: shrink each possible cpu krcp qiang.zhang
2020-08-14 18:51 ` Uladzislau Rezki
2020-08-17 22:03 ` Joel Fernandes
2020-08-18 17:18 ` Paul E. McKenney
2020-08-18 19:00 ` Joel Fernandes
2020-08-18 21:03 ` Paul E. McKenney
2020-08-18 21:55 ` Uladzislau Rezki
2020-08-18 22:02 ` Paul E. McKenney
2020-08-19 0:04 ` Joel Fernandes
2020-08-19 3:00 ` 回复: " Zhang, Qiang
2020-08-19 13:04 ` Paul E. McKenney
2020-08-19 13:56 ` Joel Fernandes
2020-08-19 15:21 ` Paul E. McKenney
2020-08-19 15:54 ` Joel Fernandes
2020-08-19 15:58 ` Uladzislau Rezki
2020-08-20 22:39 ` Joel Fernandes
2020-08-21 15:33 ` Paul E. McKenney
2020-08-31 9:30 ` Uladzislau Rezki
2020-09-09 6:35 ` Zhang, Qiang [this message]
2020-09-09 7:03 ` RCU: Question rcu_preempt_blocked_readers_cgp in rcu_gp_fqs_loop func Zhang, Qiang
2020-09-09 11:22 ` Paul E. McKenney
2020-09-10 3:25 ` 回复: " Zhang, Qiang
2020-09-14 20:06 ` Joel Fernandes
2020-08-19 11:22 ` [PATCH] rcu: shrink each possible cpu krcp Uladzislau Rezki
2020-08-19 13:25 ` Joel Fernandes
2020-08-18 23:25 ` Joel Fernandes
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=BYAPR11MB263285B19261BE8096D87F65FF260@BYAPR11MB2632.namprd11.prod.outlook.com \
--to=qiang.zhang@windriver.com \
--cc=jiangshanlai@gmail.com \
--cc=joel@joelfernandes.org \
--cc=josh@joshtriplett.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=paulmck@kernel.org \
--cc=rcu@vger.kernel.org \
--cc=rostedt@goodmis.org \
--cc=urezki@gmail.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;
as well as URLs for NNTP newsgroup(s).