Re: [PATCH v4 1/4] Introducing pw_lock() and per-cpu queue & flush work

Leonardo Bras <[email protected]> Sun, 12 Jul 2026 18:17:34 -0300

Newsgroups	dev.linux.lists.linux-rt-devel,org.kernel.vger.linux-doc,org.kernel.vger.linux-kernel,org.kvack.linux-mm
Message-ID	<alQEbpfo7mHHkIcx@WindFlash>

On Wed, May 20, 2026 at 04:47:35PM +0200, Frederic Weisbecker wrote:
> Le Wed, May 20, 2026 at 03:48:32PM +0200, Sebastian Andrzej Siewior a Ã©crit :
> > How likely is it, that you you had users before late_initcall()? Also
> > can it happen that one of them uses one function to lock and the other
> > unlock in this brief window? There is no check if this was used before
> > static_branch usage.
> 
> Or let alone initialization on the wrong member of the union.

Right!

> 
> -- 
> Frederic Weisbecker
> SUSE Labs