Re: [PATCH 0/7] rwsem: Implement down_read_killable()
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- To: Kirill Tkhai <ktkhai@xxxxxxxxxxxxx>
- Subject: Re: [PATCH 0/7] rwsem: Implement down_read_killable()
- From: David Rientjes <rientjes@xxxxxxxxxx>
- Date: Mon, 19 Jun 2017 13:27:48 -0700 (PDT)
- Cc: linux-ia64@xxxxxxxxxxxxxxx, avagin@xxxxxxxxxxxxx, peterz@xxxxxxxxxxxxx, heiko.carstens@xxxxxxxxxx, hpa@xxxxxxxxx, gorcunov@xxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, x86@xxxxxxxxxx, mingo@xxxxxxxxxx, mattst88@xxxxxxxxx, fenghua.yu@xxxxxxxxx, arnd@xxxxxxxx, ink@xxxxxxxxxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, rth@xxxxxxxxxxx, tony.luck@xxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-alpha@xxxxxxxxxxxxxxx, schwidefsky@xxxxxxxxxx, davem@xxxxxxxxxxxxx
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- User-agent: Alpine 2.10 (DEB 1266 2009-07-14)
On Mon, 19 Jun 2017, Kirill Tkhai wrote:
> This series implements killable version of down_read()
> similar to already existing down_write_killable() function.
> Patches [1-2/7] add arch-independent low-level primitives
> for the both rwsem types.
>
> Patches [3-6/7] add arch-dependent primitives for
> the architectures, that use rwsem-xadd implementation.
> The assembly code was modified in x86 case only, the rest
> of architectures does not need such change.
>
> I tested the series in x86 (which uses RWSEM_XCHGADD_ALGORITHM
> config option), and also the RWSEM_GENERIC_SPINLOCK case,
> which were manually written in Kconfig. alpha, ia64 and s390
> are compile-tested only, but I believe, their changes are
> pretty easy. Please, people, who work with them, take your
> look at the corresponding patches.
>
I would have expected to see down_read_killable() actually used somewhere
after its implementation as part of this patchset.
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