[PATCH 2/3] iova: Use alloc_percpu_aligned()

From: Huang, Ying
Date: Wed Aug 02 2017 - 04:53:31 EST


From: Huang Ying <ying.huang@xxxxxxxxx>

To use the newly introduced alloc_percpu_aligned(), which can allocate
cache line size aligned percpu memory dynamically.

Signed-off-by: "Huang, Ying" <ying.huang@xxxxxxxxx>
Cc: Joerg Roedel <joro@xxxxxxxxxx>
Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx
---
drivers/iommu/iova.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index 246f14c83944..83196f8e8fd5 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -698,7 +698,7 @@ static void init_iova_rcaches(struct iova_domain *iovad)
rcache = &iovad->rcaches[i];
spin_lock_init(&rcache->lock);
rcache->depot_size = 0;
- rcache->cpu_rcaches = __alloc_percpu(sizeof(*cpu_rcache), cache_line_size());
+ rcache->cpu_rcaches = alloc_percpu_aligned(*cpu_rcache);
if (WARN_ON(!rcache->cpu_rcaches))
continue;
for_each_possible_cpu(cpu) {
--
2.13.2