linux-kernel - Re: [RFC][PATCH 0/4] locking: Add/convert context analysis bits

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Message-ID: <e1229c44-048b-4e42-b545-18a8c716b5eb@acm.org>
Date: Wed, 21 Jan 2026 12:37:21 -0800
From: Bart Van Assche <bvanassche@....org>
To: Peter Zijlstra <peterz@...radead.org>, elver@...gle.com
Cc: linux-kernel@...r.kernel.org, bigeasy@...utronix.de, mingo@...nel.org,
 tglx@...utronix.de, will@...nel.org, boqun.feng@...il.com,
 longman@...hat.com, hch@....de, rostedt@...dmis.org, llvm@...ts.linux.dev
Subject: Re: [RFC][PATCH 0/4] locking: Add/convert context analysis bits

On 1/21/26 11:23 AM, Peter Zijlstra wrote:
> Pushed out an updated/fixed series to:
> 
>    git://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git locking/core

With CONFIG_WARN_CONTEXT_ANALYSIS=y, CONFIG_WARN_CONTEXT_ANALYSIS_ALL=n
and "+src:*include/*=emit" in scripts/context-analysis-suppression.txt
I see the following error messages for that tree:

In file included from kernel/locking/mutex.c:22:
In file included from ./include/linux/ww_mutex.h:21:
./include/linux/rtmutex.h:44:25: error: reading variable 'owner' 
requires holding raw_spinlock '&rt_mutex_base::wait_lock' 
[-Werror,-Wthread-safety-analysis]
    44 |         return READ_ONCE(lock->owner) != NULL;
       |                                ^
./include/linux/rtmutex.h:52:56: error: reading variable 'owner' 
requires holding raw_spinlock '&rt_mutex_base::wait_lock' 
[-Werror,-Wthread-safety-analysis]
    52 |         unsigned long owner = (unsigned long) 
READ_ONCE(lock->owner);
       |                                                               ^
2 errors generated.

Should this series perhaps include changes for the file
scripts/context-analysis-suppression.txt?

Thanks,

Bart.