[PATCH 01/33] PCI: Prepare to protect against concurrent isolated cpuset change

Frederic Weisbecker frederic at kernel.org
Fri Oct 31 08:30:04 PDT 2025


Le Tue, Oct 14, 2025 at 03:53:13PM -0500, Bjorn Helgaas a écrit :
> On Mon, Oct 13, 2025 at 10:31:14PM +0200, Frederic Weisbecker wrote:
> > HK_TYPE_DOMAIN will soon integrate cpuset isolated partitions and
> > therefore be made modifyable at runtime. Synchronize against the cpumask
> > update using RCU.
> > 
> > The RCU locked section includes both the housekeeping CPU target
> > election for the PCI probe work and the work enqueue.
> > 
> > This way the housekeeping update side will simply need to flush the
> > pending related works after updating the housekeeping mask in order to
> > make sure that no PCI work ever executes on an isolated CPU. This part
> > will be handled in a subsequent patch.
> 
> s/modifyable/modifiable/ (also in several other commit logs)

Languages are hard.

Fixing the set, thanks!

-- 
Frederic Weisbecker
SUSE Labs



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