linux-kernel - [PATCH] iommu/iova: Simplify IOVA cache allocation with KMEM

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Date: Tue, 27 Feb 2024 17:08:07 +0800
From: Cong Liu <liucong2@...inos.cn>
To: Robin Murphy <robin.murphy@....com>,
	Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>
Cc: Cong Liu <liucong2@...inos.cn>,
	iommu@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] iommu/iova: Simplify IOVA cache allocation with KMEM_CACHE()

Use the new KMEM_CACHE() macro instead of direct kmem_cache_create
to simplify the creation of SLAB caches.

Signed-off-by: Cong Liu <liucong2@...inos.cn>
---
 drivers/iommu/iova.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index d59d0ea2fd21..9134acae76f5 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -950,14 +950,11 @@ int iova_cache_get(void)
 
 	mutex_lock(&iova_cache_mutex);
 	if (!iova_cache_users) {
-		iova_cache = kmem_cache_create("iommu_iova", sizeof(struct iova), 0,
-					       SLAB_HWCACHE_ALIGN, NULL);
+		iova_cache = KMEM_CACHE(iova, SLAB_HWCACHE_ALIGN);
 		if (!iova_cache)
 			goto out_err;
 
-		iova_magazine_cache = kmem_cache_create("iommu_iova_magazine",
-							sizeof(struct iova_magazine),
-							0, SLAB_HWCACHE_ALIGN, NULL);
+		iova_magazine_cache = KMEM_CACHE(iova_magazine, SLAB_HWCACHE_ALIGN);
 		if (!iova_magazine_cache)
 			goto out_err;
 
-- 
2.34.1