linux-kernel - Re: [PATCH bpf-next v4 00/25] Resilient Queued Spin Lock

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Message-ID: <CAADnVQ+Q+meSfHmang0QYjsbBJsNG5rJXifUxrRXC0GNQKUcnQ@mail.gmail.com>
Date: Tue, 18 Mar 2025 13:32:02 -0700
From: Alexei Starovoitov <alexei.starovoitov@...il.com>
To: Kumar Kartikeya Dwivedi <memxor@...il.com>
Cc: bpf <bpf@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>, 
	Linus Torvalds <torvalds@...ux-foundation.org>, Peter Zijlstra <peterz@...radead.org>, 
	Will Deacon <will@...nel.org>, Waiman Long <llong@...hat.com>, Alexei Starovoitov <ast@...nel.org>, 
	Andrii Nakryiko <andrii@...nel.org>, Daniel Borkmann <daniel@...earbox.net>, 
	Martin KaFai Lau <martin.lau@...nel.org>, Eduard Zingerman <eddyz87@...il.com>, 
	"Paul E. McKenney" <paulmck@...nel.org>, Tejun Heo <tj@...nel.org>, Barret Rhoden <brho@...gle.com>, 
	Josh Don <joshdon@...gle.com>, Dohyun Kim <dohyunkim@...gle.com>, 
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>, kkd@...a.com, 
	Kernel Team <kernel-team@...a.com>
Subject: Re: [PATCH bpf-next v4 00/25] Resilient Queued Spin Lock

On Sat, Mar 15, 2025 at 9:05 PM Kumar Kartikeya Dwivedi
<memxor@...il.com> wrote:
>
> Changelog:
> ----------
> v3 -> v4
> v4: https://lore.kernel.org/bpf/20250303152305.3195648-1-memxor@gmail.com
>
>  * Fix bisectability problem by reordering locktorture commit before
>    Makefile commit.
>  * Add EXPORT_SYMBOL_GPL to all used symbols and variables by consumers.
>  * Skip BPF selftest when nrprocs < 2.
>  * Fix kdoc to describe return value for res_spin_lock, slowpath.
>  * Move kernel/locking/rqspinlock.{c,h} to kernel/bpf/rqspinlock.{c,h}.

Applied to bpf-next/res_spin_lock and /for-next branches.

bpf queue_stack, ringbuf, and various local storage-s need to
be converted to res_spin_lock in follow ups.