Re: [PATCH v10 0/8] iommu/arm-smmu-v3: Introduce an RCU-protected invalidation array
From: Will Deacon <will@kernel.org>
Date: 2026-01-27 13:37:52
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linux-iommu, lkml
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 (local) Did that get discussed someplace that I missed? Will