linux-kernel - Re: [PATCH v4 00/35] Compiler-Based Context- and Locking-Analysis

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Message-ID: <20251210163700.GN3707837@noisy.programming.kicks-ass.net>
Date: Wed, 10 Dec 2025 17:37:00 +0100
From: Peter Zijlstra <peterz@...radead.org>
To: Marco Elver <elver@...gle.com>
Cc: Boqun Feng <boqun.feng@...il.com>, Ingo Molnar <mingo@...nel.org>,
	Will Deacon <will@...nel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
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	Christoph Hellwig <hch@....de>, Dmitry Vyukov <dvyukov@...gle.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Frederic Weisbecker <frederic@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
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Subject: Re: [PATCH v4 00/35] Compiler-Based Context- and Locking-Analysis

On Wed, Dec 10, 2025 at 05:18:16PM +0100, Marco Elver wrote:
> All,
> 
> On Thu, Nov 20, 2025 at 03:49PM +0100, Marco Elver wrote:
> > Context Analysis is a language extension, which enables statically
> > checking that required contexts are active (or inactive) by acquiring
> > and releasing user-definable "context guards". An obvious application is
> > lock-safety checking for the kernel's various synchronization primitives
> > (each of which represents a "context guard"), and checking that locking
> > rules are not violated.
> [...] 
> > A Clang version that supports `-Wthread-safety-pointer` and the new
> > alias-analysis of context-guard pointers is required (from this version
> > onwards):
> > 
> > 	https://github.com/llvm/llvm-project/commit/7ccb5c08f0685d4787f12c3224a72f0650c5865e
> > 
> > The minimum required release version will be Clang 22.
> > 
> > This series is also available at this Git tree:
> > 
> > 	https://git.kernel.org/pub/scm/linux/kernel/git/melver/linux.git/log/?h=ctx-analysis/dev
> [...] 
> 
> I realize that I sent this series at the end of the last release cycle,
> and now we're in the merge window, along with LPC going on -- so it
> wasn't the best timing (however, it might be something to discuss at
> LPC, too :-) .. I'm attending virtually, however :-/).
> 
> How to proceed?

Ah, I knew I was forgetting something :/ I'll try and have a peek at
this series this week.