[PATCH v10 0/8] iommu/arm-smmu-v3: Introduce an RCU-protected invalidation array

[Nicolin Chen]

On Tue, Jan 27, 2026 at 01:37:46PM +0000, Will Deacon wrote:
> On Mon, Jan 26, 2026 at 07:09:11PM -0800, Nicolin Chen wrote:
> > Changelog
> > v10:
> >  * Rebase on arm/smmu/updates
> >  * Add Reviewed-by from Pranjal
> >  * Fix typo in kdoc and update comments
> >  * Add dma_wmb() in arm_smmu_write_entry()
> >  * Drop free_fn from arm_smmu_invs_unref()
> >  * Replace refcount_t users with WRITE_ONCE/READ_ONCE()
> >  * Verify num_trashes in arm_smmu_v3_invs_test_verify()
> 
> I think it probably just slipped through the cracks, but Pranjal had a
> concern in v9 about the rwlock not being irqsafe:
> 
> https://lore.kernel.org/r/aXND9YJTwm6om689@google.com
> 
> Did that get discussed someplace that I missed?

My bad. I missed it. I'll reply there.

Nicolin