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| author |   John Garry <john.garry@huawei.com> | 2021-03-25 20:29:58 +0800 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2021-04-07 10:27:27 +0200 |
| commit | f598a497bc7dfbec60270bca8b8408db3d23ac07 (patch) | |
| tree | 8a0616a7e7f19e67484281235df488c6e199998d /include/linux/iova.h | |
| parent | iommu/iova: Improve restart logic (diff) | |
| download | linux-dev-f598a497bc7dfbec60270bca8b8408db3d23ac07.tar.xz linux-dev-f598a497bc7dfbec60270bca8b8408db3d23ac07.zip | |
iova: Add CPU hotplug handler to flush rcaches
Like the Intel IOMMU driver already does, flush the per-IOVA domain
CPU rcache when a CPU goes offline - there's no point in keeping it.
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Link: https://lore.kernel.org/r/1616675401-151997-2-git-send-email-john.garry@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include/linux/iova.h')
| -rw-r--r-- | include/linux/iova.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iova.h b/include/linux/iova.h index c834c01c0a5b..4be6c0ab4997 100644 --- a/include/linux/iova.h +++ b/include/linux/iova.h @@ -95,6 +95,7 @@ struct iova_domain { flush-queues */ atomic_t fq_timer_on; /* 1 when timer is active, 0 when not */ + struct hlist_node cpuhp_dead; }; static inline unsigned long iova_size(struct iova *iova) |