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From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Will Deacon <will.deacon@arm.com>
Cc: linux-kernel@vger.kernel.org, sebott@linux.vnet.ibm.com,
	schwidefsky@de.ibm.com, peterz@infradead.org, mingo@kernel.org
Subject: Re: [PATCH 0/2] Fix boot regression for s390 and remove break_lock
Date: Sat, 2 Dec 2017 10:02:08 +0100	[thread overview]
Message-ID: <20171202090207.GA5046@osiris> (raw)
In-Reply-To: <1511894539-7988-1-git-send-email-will.deacon@arm.com>

On Tue, Nov 28, 2017 at 06:42:17PM +0000, Will Deacon wrote:
> Hi all,
> 
> The following two patches do the following:
> 
>   1. Fix boot breakage reported on s390 caused by a8a217c22116
>   2. Kill off the break_lock field entirely, since it's not actually
>      that useful
> 
> I didn't go the whole hog and remove CONFIG_GENERIC_LOCKBREAK, since the
> "do something different with locks in preemptible kernels" isn't necessarily
> a bad idea, and PowerPC actually implements things like arch_spin_relax
> for that.
> 
> The first patch should go in to 4.15.
> 
> Thanks,
> 
> Will
> 
> --->8
> 
> Will Deacon (2):
>   locking/core: Fix deadlock during boot on systems with
>     GENERIC_LOCKBREAK
>   locking/core: Remove break_lock field when CONFIG_GENERIC_LOCKBREAK=y
> 
>  include/linux/rwlock_types.h   |  3 ---
>  include/linux/spinlock.h       |  5 -----
>  include/linux/spinlock_types.h |  3 ---
>  kernel/locking/spinlock.c      | 13 +++----------
>  4 files changed, 3 insertions(+), 21 deletions(-)

*ping* ... these patches haven't been picked up yet as far as I can tell.
Peter, Ingo?

  parent reply	other threads:[~2017-12-02  9:02 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-28 18:42 [PATCH 0/2] Fix boot regression for s390 and remove break_lock Will Deacon
2017-11-28 18:42 ` [PATCH 1/2] locking/core: Fix deadlock during boot on systems with GENERIC_LOCKBREAK Will Deacon
2017-12-12 10:58   ` [tip:locking/urgent] " tip-bot for Will Deacon
2017-11-28 18:42 ` [PATCH 2/2] locking/core: Remove break_lock field when CONFIG_GENERIC_LOCKBREAK=y Will Deacon
2017-12-12 10:58   ` [tip:locking/urgent] " tip-bot for Will Deacon
2017-12-02  9:02 ` Heiko Carstens [this message]
2017-12-11 12:47   ` [PATCH 0/2] Fix boot regression for s390 and remove break_lock Will Deacon
2017-12-11 14:02     ` Ingo Molnar

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