linux-kernel - Re: [PATCH 3/3] printer port driver: semaphore to mutex

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Message-ID: <20071207074052.GF480@traven>
Date:	Fri, 7 Dec 2007 08:40:52 +0100
From:	Matthias Kaehlcke <matthias.kaehlcke@...il.com>
To:	Remy Bohmer <linux@...mer.net>
Cc:	Daniel Walker <dwalker@...sta.com>, Ingo Molnar <mingo@...e.hu>,
	linux-kernel@...r.kernel.org, jonathan@...masters.org
Subject: Re: [PATCH 3/3] printer port driver: semaphore to mutex

El Thu, Dec 06, 2007 at 09:12:05PM +0100 Remy Bohmer ha dit:

> Which do you have exactly on your list? (good to know, it prevents
> double work...)

it isn't really an elaborated list, until now i greped for certain
semaphore usages, had a look at the code and converted it if
necessary. at the moment i'm having a look at usb drivers.

> 2007/12/6, Matthias Kaehlcke <matthias.kaehlcke@...il.com>:
> > El Thu, Dec 06, 2007 at 08:34:06AM -0800 Daniel Walker ha dit:
> >
> > > On Thu, 2007-12-06 at 11:23 +0100, Ingo Molnar wrote:
> > > > * Daniel Walker <dwalker@...sta.com> wrote:
> > > >
> > > > > The port_mutex is actually a semaphore, so easily converted to a
> > > > > struct mutex.
> > > > >
> > > > > Signed-off-by: Daniel Walker <dwalker@...sta.com>
> > > >
> > > > Acked-by: Ingo Molnar <mingo@...e.hu>
> > > >
> > > > cool. How far away are we from being able to remove all the semaphore
> > > > code? :-)
> > >
> > > I wish my 7 patches made a dent, but it's hasn't done much. ;(
> > >
> > > I would guess at least a week just to mop up the relatively easy ones..
> > > I've got 12 in my queue, and there still ~50 hopefully trivial ones
> > > still to be looked at.. Then another ~30 more difficult ones (that use
> > > init_MUTEX_LOCKED, or sema_init with 0 instead of 1) ..
> >
> > I've also more patches of this type on my list, though i work in a
> > slower pace
> >
> >
> >              You must have a plan. If you don't have a plan,
> >                you'll become part of somebody else's plan
> >                                                                  .''`.
> >     using free software / Debian GNU/Linux | http://debian.org  : :'  :
> >                                                                 `. `'`
> > gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4                  `-
> >

-- 
Matthias Kaehlcke
Linux System Developer
Barcelona

                Don't walk behind me, I may not lead
             Don't walk in front of me, I may not follow
                Just walk beside me and be my friend
                          (Albert Camus)
                                                                 .''`.
    using free software / Debian GNU/Linux | http://debian.org  : :'  :
                                                                `. `'`
gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4                  `-
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