Re: [Intel-gfx] [PATCH v5 0/7] Introduce __xchg, non-atomic xchg

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On Thu, Feb 23, 2023 at 10:24:19PM +0100, Andrzej Hajda wrote:
> On 22.02.2023 18:04, Peter Zijlstra wrote:
> > On Wed, Jan 18, 2023 at 04:35:22PM +0100, Andrzej Hajda wrote:
> > 
> > > Andrzej Hajda (7):
> > >    arch: rename all internal names __xchg to __arch_xchg
> > >    linux/include: add non-atomic version of xchg
> > >    arch/*/uprobes: simplify arch_uretprobe_hijack_return_addr
> > >    llist: simplify __llist_del_all
> > >    io_uring: use __xchg if possible
> > >    qed: use __xchg if possible
> > >    drm/i915/gt: use __xchg instead of internal helper
> > 
> > Nothing crazy in here I suppose, I somewhat wonder why you went through
> > the trouble, but meh.
> 
> If you are asking why I have proposed this patchset, then the answer is
> simple, 1st I've tried to find a way to move internal i915 helper to core
> (see patch 7).
> Then I was looking for possible other users of this helper. And apparently
> there are many of them, patches 3-7 shows some.
> 
> 
> > 
> > You want me to take this through te locking tree (for the next cycle,
> > not this one) where I normally take atomic things or does someone else
> > want this?
> 
> If you could take it I will be happy.

OK, I'll go queue it in tip/locking/core after -rc1. Thanks!



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