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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, zhe.he@windriver.com,
	xiaodong.liu@intel.com, joe@perches.com, robin.murphy@arm.com,
	will@kernel.org, john.garry@huawei.com
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 v12 01/13] iova: Export alloc_iova_fast() and free_iova_fast()
Date: Mon, 30 Aug 2021 22:17:25 +0800	[thread overview]
Message-ID: <20210830141737.181-2-xieyongji@bytedance.com> (raw)
In-Reply-To: <20210830141737.181-1-xieyongji@bytedance.com>

Export alloc_iova_fast() and free_iova_fast() so that
some modules can make use of the per-CPU cache to get
rid of rbtree spinlock in alloc_iova() and free_iova()
during IOVA allocation.

Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Acked-by: Will Deacon <will@kernel.org>
---
 drivers/iommu/iova.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/iova.c b/drivers/iommu/iova.c
index b6cf5f16123b..3941ed6bb99b 100644
--- a/drivers/iommu/iova.c
+++ b/drivers/iommu/iova.c
@@ -521,6 +521,7 @@ 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
@@ -538,6 +539,7 @@ 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


  reply	other threads:[~2021-08-30 14:22 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-30 14:17 [PATCH v12 00/13] Introduce VDUSE - vDPA Device in Userspace Xie Yongji
2021-08-30 14:17 ` Xie Yongji [this message]
2021-08-30 14:17 ` [PATCH v12 02/13] eventfd: Export eventfd_wake_count to modules Xie Yongji
2021-08-30 14:17 ` [PATCH v12 03/13] file: Export receive_fd() " Xie Yongji
2021-08-30 14:17 ` [PATCH v12 04/13] vdpa: Fix some coding style issues Xie Yongji
2021-08-30 14:17 ` [PATCH v12 05/13] vdpa: Add reset callback in vdpa_config_ops Xie Yongji
2021-09-06  5:54   ` Michael S. Tsirkin
2021-08-30 14:17 ` [PATCH v12 06/13] vhost-vdpa: Handle the failure of vdpa_reset() Xie Yongji
2021-08-30 14:17 ` [PATCH v12 07/13] vhost-iotlb: Add an opaque pointer for vhost IOTLB Xie Yongji
2021-08-30 14:17 ` [PATCH v12 08/13] vdpa: Add an opaque pointer for vdpa_config_ops.dma_map() Xie Yongji
2021-08-30 14:17 ` [PATCH v12 09/13] vdpa: factor out vhost_vdpa_pa_map() and vhost_vdpa_pa_unmap() Xie Yongji
2021-08-30 14:17 ` [PATCH v12 10/13] vdpa: Support transferring virtual addressing during DMA mapping Xie Yongji
2021-08-30 14:17 ` [PATCH v12 11/13] vduse: Implement an MMU-based software IOTLB Xie Yongji
2021-08-30 14:17 ` [PATCH v12 12/13] vduse: Introduce VDUSE - vDPA Device in Userspace Xie Yongji
2021-08-30 14:17 ` [PATCH v12 13/13] Documentation: Add documentation for VDUSE Xie Yongji
2022-01-10 12:56 ` [PATCH v12 00/13] Introduce VDUSE - vDPA Device in Userspace Michael S. Tsirkin
2022-01-10 13:54   ` Yongji Xie
2022-01-10 15:09     ` Michael S. Tsirkin
2022-01-10 15:24       ` Yongji Xie
2022-01-10 15:44         ` Michael S. Tsirkin
2022-01-11  3:31           ` Yongji Xie
2022-01-11 11:54             ` Michael S. Tsirkin
2022-01-11 12:57               ` Yongji Xie
2022-01-11 13:04                 ` Michael S. Tsirkin

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