linux-kernel - Re: [PATCH] s390: Remove obsolete bust

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Message-Id: <20181123070212.GA3300@osiris>
Date:   Fri, 23 Nov 2018 08:02:12 +0100
From:   Heiko Carstens <heiko.carstens@...ibm.com>
To:     Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
Cc:     Petr Mladek <pmladek@...e.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        linux-s390@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] s390: Remove obsolete bust_spinlock() implementation

On Fri, Nov 23, 2018 at 11:17:48AM +0900, Sergey Senozhatsky wrote:
> On (11/22/18 15:15), Petr Mladek wrote:
> > The commit cefc8be82403cf ("Consolidate bust_spinlocks()") kept
> > the s390-specific implementation because of the absence of CONFIG_VT.
> > In fact, the only difference was calling console_unblank() instead of
> > unblank_screen().
> > 
> > The common implementation in lib/bust_spinlocks.c started to call
> > unblank_screen() explicitly since the commit b61312d353da187
> > ("oops handling: ensure that any oops is flushed to the mtdoops
> > console").
> > 
> > As a result, the custom implementation is not longer necessary.
> > And we could get all the other improvements of the common
> > implementation for free.
> 
> I believe I sent a similar patch several weeks ago and it's
> in s390 patch queue as of now, waiting for the next merge
> window.
> 
> lkml.kernel.org/r/20181025081108.GB26561@...ris

Yes, it will be added soon to the features branch of the
s390/linux.git repository on kernel.org and then hit linux-next.