From: Greg KH <gregkh@linuxfoundation.org>
To: Davidlohr Bueso <dave@stgolabs.net>
Cc: Stefan Wahren <wahrenst@gmx.net>,
eric@anholt.net, linux-kernel@vger.kernel.org,
devel@driverdev.osuosl.org
Subject: Re: [PATCH] staging: vc04_services: replace g_free_fragments_mutex with spinlock
Date: Mon, 28 Oct 2019 16:37:04 +0100 [thread overview]
Message-ID: <20191028153704.GA134005@kroah.com> (raw)
In-Reply-To: <20191028152108.bjliafudxn3llysv@linux-p48b>
On Mon, Oct 28, 2019 at 08:21:08AM -0700, Davidlohr Bueso wrote:
> On Mon, 28 Oct 2019, Stefan Wahren wrote:
>
> > Hi Davidlohr,
> >
> > Am 27.10.19 um 23:15 schrieb Davidlohr Bueso:
> > > There seems no need to be using a semaphore, or a sleeping lock
> > > in the first place: critical region is extremely short, does not
> > > call into any blocking calls and furthermore lock and unlocking
> > > operations occur in the same context.
> > >
> > > Get rid of another semaphore user by replacing it with a spinlock.
> > >
> > > Signed-off-by: Davidlohr Bueso <dave@stgolabs.net>
> > > ---
> > > This is in an effort to further reduce semaphore users in the kernel.
> > >
> > thanks for this. Could please also send this to devel@driverdev.osuosl.org?
>
> Ccing.
I don't see a patch here :(
next prev parent reply other threads:[~2019-10-28 15:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-27 22:15 [PATCH] staging: vc04_services: replace g_free_fragments_mutex with spinlock Davidlohr Bueso
[not found] ` <576df522-f012-9dd1-9dcc-b7e444e82ac6@gmx.net>
2019-10-28 15:21 ` Davidlohr Bueso
2019-10-28 15:37 ` Greg KH [this message]
2019-10-28 15:53 ` Davidlohr Bueso
2019-10-28 16:24 ` Greg KH
2019-10-28 16:35 ` Davidlohr Bueso
2019-10-28 16:59 ` Greg KH
2019-11-01 18:29 ` [PATCH resend] " Davidlohr Bueso
2019-11-02 10:33 ` Stefan Wahren
2019-11-02 10:35 ` Greg KH
2019-10-28 19:08 ` [PATCH] " Dan Carpenter
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