[PATCH v8 01/10] iova: Export alloc_iova_fast() and free_iova_fast();

From: Xie Yongji <xieyongji@bytedance.com>
To: mst@redhat.com, jasowang@redhat.com, stefanha@redhat.com,
	sgarzare@redhat.com, parav@nvidia.com, hch@infradead.org,
	christian.brauner@canonical.com, rdunlap@infradead.org,
	willy@infradead.org, viro@zeniv.linux.org.uk, axboe@kernel.dk,
	bcrl@kvack.org, corbet@lwn.net, mika.penttila@nextfour.com,
	dan.carpenter@oracle.com, joro@8bytes.org,
	gregkh@linuxfoundation.org
Cc: songmuchun@bytedance.com,
	virtualization@lists.linux-foundation.org,
	netdev@vger.kernel.org, kvm@vger.kernel.org,
	linux-fsdevel@vger.kernel.org, iommu@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH v8 01/10] iova: Export alloc_iova_fast() and free_iova_fast();
Date: Tue, 15 Jun 2021 22:13:22 +0800	[thread overview]
Message-ID: <20210615141331.407-2-xieyongji@bytedance.com> (raw)
In-Reply-To: <20210615141331.407-1-xieyongji@bytedance.com>

Export alloc_iova_fast() and free_iova_fast() so that
some modules can use it to improve iova allocation efficiency.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
---
 drivers/iommu/iova.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index b7ecd5b08039..59916b4b7fe9 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -518,6 +518,7 @@ alloc_iova_fast(struct iova_domain *iovad, unsigned long size,
 
 	return new_iova->pfn_lo;
 }
+EXPORT_SYMBOL_GPL(alloc_iova_fast);
 
 /**
  * free_iova_fast - free iova pfn range into rcache
@@ -535,6 +536,7 @@ free_iova_fast(struct iova_domain *iovad, unsigned long pfn, unsigned long size)
 
 	free_iova(iovad, pfn);
 }
+EXPORT_SYMBOL_GPL(free_iova_fast);
 
 #define fq_ring_for_each(i, fq) \
 	for ((i) = (fq)->head; (i) != (fq)->tail; (i) = ((i) + 1) % IOVA_FQ_SIZE)
-- 
2.11.0

