On 02/14/2019 05:52 AM, Geert Uytterhoeven wrote:

On Thu, Feb 14, 2019 at 12:08 AM Christoph Hellwig [off-list ref] wrote:

quoted

Introduce one central definition of RWSEM_XCHGADD_ALGORITHM and
RWSEM_GENERIC_SPINLOCK in kernel/Kconfig.locks and let architectures
select RWSEM_XCHGADD_ALGORITHM if they want it, otherwise default to
the spinlock version.

Signed-off-by: Christoph Hellwig <hch@lst.de>

Note that this conflicts with "[PATCH v4 2/3] locking/rwsem: Remove
rwsem-spinlock.c & use rwsem-xadd.c for all archs"
https://lore.kernel.org/lkml/1550095217-12047-3-git-send-email-longman@redhat.com/ (local)

Gr{oetje,eeting}s,

                        Geert

Christoph,

Would you mind dropping just patch 3 from your series?

Thanks,
Longman