linux-kernel - Re: [tip:locking/core 20/43] include/linux/rmap.h:123:1: warning: rw_semaphore 'anon_vma->root->rwsem' is still held at the end of function

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Message-ID: <CANpmjNOCwW7K2iWZh4g6y+DV8edb9noRULKBeP+Q7oa4NOFRiA@mail.gmail.com>
Date: Wed, 21 Jan 2026 09:30:35 +0100
From: Marco Elver <elver@...gle.com>
To: kernel test robot <lkp@...el.com>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev, 
	linux-kernel@...r.kernel.org, x86@...nel.org, 
	Peter Zijlstra <peterz@...radead.org>
Subject: Re: [tip:locking/core 20/43] include/linux/rmap.h:123:1: warning:
 rw_semaphore 'anon_vma->root->rwsem' is still held at the end of function

On Wed, 21 Jan 2026 at 04:23, kernel test robot <lkp@...el.com> wrote:
>
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking/core
> head:   ccf9e070116a81d29aae30db501d562c8efd1ed8
> commit: e4fd3be884cf33a42c5bcde087b0722a5b8f25ca [20/43] locking/rwsem: Support Clang's context analysis
> config: s390-randconfig-002-20260121 (https://download.01.org/0day-ci/archive/20260121/202601211136.rAqSN4rF-lkp@intel.com/config)
> compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 9b8addffa70cee5b2acc5454712d9cf78ce45710)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260121/202601211136.rAqSN4rF-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202601211136.rAqSN4rF-lkp@intel.com/
>
> All warnings (new ones prefixed by >>):
>
>    include/linux/fs.h:1083:1: warning: rw_semaphore 'mapping->invalidate_lock' is still held at the end of function [-Wthread-safety-analysis]
>     1083 | }

This is a CONFIG_WARN_CONTEXT_ANALYSIS_ALL=y build; that option
depends !COMPILE_TEST, which is not set for this compile test it
appears.
So this seems to be WAI.