Thread (21 messages) 21 messages, 4 authors, 2024-04-05

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

From: Peter Zijlstra <peterz@infradead.org>
Date: 2023-02-27 13:50:22
Also in: dri-devel, intel-gfx, linux-alpha, linux-m68k, linux-mips, linux-riscv, linux-s390, linux-sh, linuxppc-dev, lkml, loongarch, sparclinux

On Thu, Feb 23, 2023 at 10:24:19PM +0100, Andrzej Hajda wrote:
On 22.02.2023 18:04, Peter Zijlstra wrote:
quoted
On Wed, Jan 18, 2023 at 04:35:22PM +0100, Andrzej Hajda wrote:
quoted
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.

quoted
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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