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SubjectRe: [PATCH 0/2] Fix boot regression for s390 and remove break_lock
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?

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