All of lore.kernel.org
 help / color / mirror / Atom feed
From: Frederic Weisbecker <frederic@kernel.org>
To: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Frederic Weisbecker <frederic@kernel.org>,
	"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: [PATCH 0/4] irq_work: Fix ordering issue
Date: Fri,  8 Nov 2019 17:08:54 +0100	[thread overview]
Message-ID: <20191108160858.31665-1-frederic@kernel.org> (raw)

Patches 1 and 2 are the fix part, 3 is a cleanup, 4 is
extra-optimization (rfc).

Thanks to Paul that confirmed my doubts about ordering on cmpxchg() failure.

Frederic Weisbecker (4):
  irq_work: Convert flags to atomic_t
  irq_work: Fix irq_work_claim() ordering
  irq_work: Slightly simplify IRQ_WORK_PENDING clearing
  irq_work: Weaken ordering in irq_work_run_list()

 include/linux/irq_work.h | 10 +++++++---
 kernel/irq_work.c        | 35 ++++++++++++++---------------------
 kernel/printk/printk.c   |  2 +-
 3 files changed, 22 insertions(+), 25 deletions(-)

-- 
2.23.0


             reply	other threads:[~2019-11-08 16:09 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-08 16:08 Frederic Weisbecker [this message]
2019-11-08 16:08 ` [PATCH 1/4] irq_work: Convert flags to atomic_t Frederic Weisbecker
2019-11-11  8:00   ` Ingo Molnar
2019-11-11 22:56     ` Frederic Weisbecker
2019-11-11  9:32   ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
2019-11-08 16:08 ` [PATCH 2/4] irq_work: Fix irq_work_claim() ordering Frederic Weisbecker
2019-11-11  7:20   ` Ingo Molnar
2019-11-11 23:17     ` Frederic Weisbecker
2019-11-11  9:32   ` [tip: irq/core] irq_work: Fix irq_work_claim() memory ordering tip-bot2 for Frederic Weisbecker
2019-11-08 16:08 ` [PATCH 3/4] irq_work: Slightly simplify IRQ_WORK_PENDING clearing Frederic Weisbecker
2019-11-11  9:32   ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
2019-11-12 20:27   ` [PATCH 3/4] " Leonard Crestez
2019-11-13  0:22     ` Frederic Weisbecker
2019-11-08 16:08 ` [RFC PATCH 4/4] irq_work: Weaken ordering in irq_work_run_list() Frederic Weisbecker
2019-11-11  8:43   ` Peter Zijlstra
2019-11-11 22:38     ` Frederic Weisbecker

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=20191108160858.31665-1-frederic@kernel.org \
    --to=frederic@kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@kernel.org \
    --cc=paulmck@linux.vnet.ibm.com \
    --cc=peterz@infradead.org \
    --cc=tglx@linutronix.de \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.