linux-kernel - [PATCH 00/10 v2] iommu/amd: lock splitting & GFP

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Date:   Fri, 16 Mar 2018 21:18:26 +0100
From:   Sebastian Andrzej Siewior <bigeasy@...utronix.de>
To:     Joerg Roedel <joro@...tes.org>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        tglx@...utronix.de
Subject: [PATCH 00/10 v2] iommu/amd: lock splitting & GFP_KERNEL allocation 

The goal here is to make the memory allocation in get_irq_table() not
with disabled interrupts and having as little raw_spin_lock as possible
while having them if the caller is also holding one (like desc->lock
during IRQ-affinity changes).
I reverted one patch one patch in the iommu while rebasing since it
make job easier.

The patches were boot tested on an AMD EPYC 7601.

Sebastian