From: Byungchul Park <byungchul.park@lge.com>
To: Ingo Molnar <mingo@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>,
peterz@infradead.org, johan@kernel.org, tglx@linutronix.de,
linux-kernel@vger.kernel.org, linux-mm@kvack.org, tj@kernel.org,
johannes.berg@intel.com, oleg@redhat.com, amir73il@gmail.com,
david@fromorbit.com, darrick.wong@oracle.com,
linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-block@vger.kernel.org, hch@infradead.org,
idryomov@gmail.com, kernel-team@lge.com
Subject: Re: [PATCH v5 9/9] block: Assign a lock_class per gendisk used for wait_for_completion()
Date: Thu, 26 Oct 2017 14:58:50 +0900 [thread overview]
Message-ID: <20171026055850.GA5594@X58A-UD3R> (raw)
In-Reply-To: <20171026055046.wjbbua4kx6lw5l2r@gmail.com>
On Thu, Oct 26, 2017 at 07:50:46AM +0200, Ingo Molnar wrote:
>
> * Jens Axboe <axboe@kernel.dk> wrote:
>
> > On 10/25/2017 03:13 AM, Ingo Molnar wrote:
> > >
> > > * Byungchul Park <byungchul.park@lge.com> wrote:
> > >
> > >> Darrick posted the following warning and Dave Chinner analyzed it:
> > >>
> > >>> ======================================================
> > >>> WARNING: possible circular locking dependency detected
> > >>> 4.14.0-rc1-fixes #1 Tainted: G W
> > >
> > >> Reported-by: Darrick J. Wong <darrick.wong@oracle.com>
> > >> Analyzed-by: Dave Chinner <david@fromorbit.com>
> > >> Signed-off-by: Byungchul Park <byungchul.park@lge.com>
> > >> ---
> > >> block/bio.c | 2 +-
> > >> block/genhd.c | 10 ++--------
> > >> include/linux/genhd.h | 22 ++++++++++++++++++++--
> > >> 3 files changed, 23 insertions(+), 11 deletions(-)
> > >
> > > Ok, this patch looks good to me now, I'll wait to get an Ack or Nak from Jens for
> > > these changes.
> > >
> > > Jens: this patch has some dependencies in prior lockdep changes, so I'd like to
> > > carry it in the locking tree for a v4.15 merge.
> >
> > Looks fine to me, you can add my reviewed-by and carry it in your tree.
>
> Thanks Jens!
Thanks all of you.
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prev parent reply other threads:[~2017-10-26 5:58 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-25 8:55 [PATCH v5 0/9] cross-release: Enhence performance and fix false positives Byungchul Park
2017-10-25 8:55 ` [PATCH v5 1/9] block: use DECLARE_COMPLETION_ONSTACK in submit_bio_wait Byungchul Park
2017-10-25 8:55 ` [PATCH v5 2/9] locking/lockdep: Provide empty lockdep_map structure for !CONFIG_LOCKDEP Byungchul Park
2017-10-25 8:55 ` [PATCH v5 3/9] completion: Change the prefix of lock name for completion variable Byungchul Park
2017-10-25 8:56 ` [PATCH v5 4/9] locking/lockdep: Add a boot parameter allowing unwind in cross-release and disable it by default Byungchul Park
2017-10-25 8:56 ` [PATCH v5 5/9] locking/lockdep: Remove the BROKEN flag from CONFIG_LOCKDEP_CROSSRELEASE and CONFIG_LOCKDEP_COMPLETIONS Byungchul Park
2017-10-25 8:56 ` [PATCH v5 6/9] locking/lockdep: Introduce CONFIG_BOOTPARAM_LOCKDEP_CROSSRELEASE_FULLSTACK Byungchul Park
2017-10-25 8:56 ` [PATCH v5 7/9] completion: Add support for initializing completion with lockdep_map Byungchul Park
2017-10-25 8:56 ` [PATCH v5 8/9] workqueue: Remove unnecessary acquisitions wrt workqueue flush Byungchul Park
2017-10-25 8:56 ` [PATCH v5 9/9] block: Assign a lock_class per gendisk used for wait_for_completion() Byungchul Park
2017-10-25 10:13 ` Ingo Molnar
2017-10-25 18:20 ` Jens Axboe
2017-10-26 5:50 ` Ingo Molnar
2017-10-26 5:58 ` Byungchul Park [this message]
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