linux-kernel - [PATCH 2/3] iova: Use alloc_percpu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Wed,  2 Aug 2017 16:52:19 +0800
From:   "Huang, Ying" <ying.huang@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     linux-kernel@...r.kernel.org, Huang Ying <ying.huang@...el.com>,
        Joerg Roedel <joro@...tes.org>,
        iommu@...ts.linux-foundation.org
Subject: [PATCH 2/3] iova: Use alloc_percpu_aligned()

From: Huang Ying <ying.huang@...el.com>

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@...el.com>
Cc: Joerg Roedel <joro@...tes.org>
Cc: iommu@...ts.linux-foundation.org
---
 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