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

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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.


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