iova: Add CPU hotplug handler to flush rcaches
authorJohn Garry <john.garry@huawei.com>
Thu, 25 Mar 2021 12:29:58 +0000 (20:29 +0800)
committerJoerg Roedel <jroedel@suse.de>
Wed, 7 Apr 2021 08:27:27 +0000 (10:27 +0200)
commitf598a497bc7dfbec60270bca8b8408db3d23ac07
tree8a0616a7e7f19e67484281235df488c6e199998d
parent371d7955e3102fe38daf06de4ed9bfd29864354b
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>
drivers/iommu/iova.c
include/linux/cpuhotplug.h
include/linux/iova.h