From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "peterz@infradead.org" <peterz@infradead.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"jannh@google.com" <jannh@google.com>,
"bcrl@kvack.org" <bcrl@kvack.org>,
"torvalds@linux-foundation.org" <torvalds@linux-foundation.org>,
"kernel-team@fb.com" <kernel-team@fb.com>,
"kent.overstreet@gmail.com" <kent.overstreet@gmail.com>,
"security@kernel.org" <security@kernel.org>,
"viro@zeniv.linux.org.uk" <viro@zeniv.linux.org.uk>,
"axboe@kernel.dk" <axboe@kernel.dk>,
"paulmck@linux.vnet.ibm.com" <paulmck@linux.vnet.ibm.com>,
"tj@kernel.org" <tj@kernel.org>
Subject: Re: [PATCH 5/7] block: Remove superflous rcu_read_[un]lock_sched() in blk_queue_enter()
Date: Wed, 14 Mar 2018 20:14:09 +0000 [thread overview]
Message-ID: <1521058448.3006.32.camel@wdc.com> (raw)
In-Reply-To: <20180314200846.GR4064@hirez.programming.kicks-ass.net>
On Wed, 2018-03-14 at 21:08 +0100, Peter Zijlstra wrote:
> On Wed, Mar 14, 2018 at 08:05:30PM +0000, Bart Van Assche wrote:
> > Can you clarify this further? From <linux/rcupdate.h>:
> >
> > static inline void synchronize_rcu(void)
> > {
> > synchronize_sched();
> > }
>
> You'll find that is for !CONFIG_PREEMPT_RCU.
Thanks for the clarification. I will submit a fix for the SCSI code.
Bart.
next prev parent reply other threads:[~2018-03-14 20:14 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-06 17:26 [PATCHSET] percpu_ref, RCU: Audit RCU usages in percpu_ref users Tejun Heo
2018-03-06 17:33 ` [PATCH 1/7] fs/aio: Add explicit RCU grace period when freeing kioctx Tejun Heo
2018-03-06 17:33 ` [PATCH 2/7] fs/aio: Use RCU accessors for kioctx_table->table[] Tejun Heo
2018-03-06 17:33 ` [PATCH 3/7] RDMAVT: Fix synchronization around percpu_ref Tejun Heo
2018-03-07 15:39 ` Dennis Dalessandro
2018-03-06 17:33 ` [PATCH 4/7] HMM: Remove superflous RCU protection around radix tree lookup Tejun Heo
2018-03-06 17:59 ` Jerome Glisse
2018-03-06 17:33 ` [PATCH 5/7] block: Remove superflous rcu_read_[un]lock_sched() in blk_queue_enter() Tejun Heo
2018-03-06 17:52 ` Bart Van Assche
2018-03-14 18:46 ` tj
2018-03-14 20:05 ` Bart Van Assche
2018-03-14 20:08 ` Peter Zijlstra
2018-03-14 20:14 ` Bart Van Assche [this message]
2018-03-06 17:33 ` [PATCH 6/7] percpu_ref: Update doc to dissuade users from depending on internal RCU grace periods Tejun Heo
2018-03-06 17:33 ` [PATCH 7/7] RCU, workqueue: Implement rcu_work Tejun Heo
2018-03-06 18:30 ` Linus Torvalds
2018-03-09 15:37 ` Tejun Heo
2018-03-07 2:49 ` Lai Jiangshan
2018-03-07 14:54 ` Paul E. McKenney
2018-03-07 16:23 ` Peter Zijlstra
2018-03-07 17:58 ` Paul E. McKenney
2018-03-08 0:29 ` Lai Jiangshan
2018-03-08 17:28 ` Paul E. McKenney
2018-03-09 16:21 ` Tejun Heo
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=1521058448.3006.32.camel@wdc.com \
--to=bart.vanassche@wdc.com \
--cc=axboe@kernel.dk \
--cc=bcrl@kvack.org \
--cc=jannh@google.com \
--cc=kent.overstreet@gmail.com \
--cc=kernel-team@fb.com \
--cc=linux-kernel@vger.kernel.org \
--cc=paulmck@linux.vnet.ibm.com \
--cc=peterz@infradead.org \
--cc=security@kernel.org \
--cc=tj@kernel.org \
--cc=torvalds@linux-foundation.org \
--cc=viro@zeniv.linux.org.uk \
/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
Powered by JetHome