From: Jason Gunthorpe <jgg@nvidia.com>
To: David Airlie <airlied@linux.ie>,
Tony Krowiak <akrowiak@linux.ibm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Cornelia Huck <cohuck@redhat.com>,
Jonathan Corbet <corbet@lwn.net>, Daniel Vetter <daniel@ffwll.ch>,
dri-devel@lists.freedesktop.org,
Eric Farman <farman@linux.ibm.com>,
Harald Freudenberger <freude@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
intel-gfx@lists.freedesktop.org,
intel-gvt-dev@lists.freedesktop.org,
Jani Nikula <jani.nikula@linux.intel.com>,
Jason Herne <jjherne@linux.ibm.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
kvm@vger.kernel.org, Kirti Wankhede <kwankhede@nvidia.com>,
linux-doc@vger.kernel.org, linux-s390@vger.kernel.org,
Matthew Rosato <mjrosato@linux.ibm.com>,
Peter Oberparleiter <oberpar@linux.ibm.com>,
Halil Pasic <pasic@linux.ibm.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Vineeth Vijayan <vneethv@linux.ibm.com>,
Zhenyu Wang <zhenyuw@linux.intel.com>,
Zhi Wang <zhi.a.wang@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>, Christoph Hellwig <hch@lst.de>
Subject: [PATCH v3 09/10] vfio: Export vfio_device_try_get()
Date: Fri, 1 Oct 2021 14:52:50 -0300 [thread overview]
Message-ID: <9-v3-57c1502c62fd+2190-ccw_mdev_jgg@nvidia.com> (raw)
In-Reply-To: <0-v3-57c1502c62fd+2190-ccw_mdev_jgg@nvidia.com>
vfio_ccw will need it.
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
drivers/vfio/vfio.c | 3 ++-
include/linux/vfio.h | 1 +
2 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 08b27b64f0f935..44adf112e3b5dd 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -554,10 +554,11 @@ void vfio_device_put(struct vfio_device *device)
}
EXPORT_SYMBOL_GPL(vfio_device_put);
-static bool vfio_device_try_get(struct vfio_device *device)
+bool vfio_device_try_get(struct vfio_device *device)
{
return refcount_inc_not_zero(&device->refcount);
}
+EXPORT_SYMBOL_GPL(vfio_device_try_get);
static struct vfio_device *vfio_group_get_device(struct vfio_group *group,
struct device *dev)
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 76191d7abed185..f99e4b2d9b45f0 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -78,6 +78,7 @@ int vfio_register_group_dev(struct vfio_device *device);
int vfio_register_emulated_iommu_dev(struct vfio_device *device);
void vfio_unregister_group_dev(struct vfio_device *device);
extern struct vfio_device *vfio_device_get_from_dev(struct device *dev);
+bool vfio_device_try_get(struct vfio_device *device);
extern void vfio_device_put(struct vfio_device *device);
int vfio_assign_device_set(struct vfio_device *device, void *set_id);
--
2.33.0
next prev parent reply other threads:[~2021-10-01 17:53 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-01 17:52 [PATCH v3 00/10] Move vfio_ccw to the new mdev API Jason Gunthorpe
2021-10-01 17:52 ` [PATCH v3 01/10] vfio/ccw: Remove unneeded GFP_DMA Jason Gunthorpe
2021-10-21 13:32 ` Matthew Rosato
2021-10-21 14:35 ` Eric Farman
2021-10-01 17:52 ` [PATCH v3 02/10] vfio/ccw: Use functions for alloc/free of the vfio_ccw_private Jason Gunthorpe
2021-10-21 13:50 ` Matthew Rosato
2021-10-01 17:52 ` [PATCH v3 03/10] vfio/ccw: Pass vfio_ccw_private not mdev_device to various functions Jason Gunthorpe
2021-10-01 17:52 ` [PATCH v3 04/10] vfio/ccw: Convert to use vfio_register_emulated_iommu_dev() Jason Gunthorpe
2021-10-21 18:09 ` Eric Farman
2021-10-01 17:52 ` [PATCH v3 05/10] vfio/ccw: Make the FSM complete and synchronize it to the mdev Jason Gunthorpe
2021-10-01 17:52 ` [PATCH v3 06/10] vfio/mdev: Consolidate all the device_api sysfs into the core code Jason Gunthorpe
2021-10-01 17:52 ` [PATCH v3 07/10] vfio/mdev: Add mdev available instance checking to the core Jason Gunthorpe
2021-10-01 17:52 ` [PATCH v3 08/10] vfio/ccw: Remove private->mdev Jason Gunthorpe
2021-10-01 17:52 ` Jason Gunthorpe [this message]
2021-10-01 17:52 ` [PATCH v3 10/10] vfio/ccw: Move the lifecycle of the struct vfio_ccw_private to the mdev Jason Gunthorpe
2021-10-20 22:48 ` [PATCH v3 00/10] Move vfio_ccw to the new mdev API Jason Gunthorpe
2021-10-21 13:35 ` Eric Farman
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