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From: Yi Liu <yi.l.liu@intel.com>
To: alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com
Cc: linux-s390@vger.kernel.org, yi.l.liu@intel.com,
	yi.y.sun@linux.intel.com, mjrosato@linux.ibm.com,
	kvm@vger.kernel.org, intel-gvt-dev@lists.freedesktop.org,
	joro@8bytes.org, cohuck@redhat.com, xudong.hao@intel.com,
	peterx@redhat.com, yan.y.zhao@intel.com, eric.auger@redhat.com,
	terrence.xu@intel.com, nicolinc@nvidia.com,
	shameerali.kolothum.thodi@huawei.com,
	suravee.suthikulpanit@amd.com, intel-gfx@lists.freedesktop.org,
	chao.p.peng@linux.intel.com, lulu@redhat.com,
	robin.murphy@arm.com, jasowang@redhat.com
Subject: [Intel-gfx] [PATCH v6 08/24] vfio/pci: Update comment around group_fd get in vfio_pci_ioctl_pci_hot_reset()
Date: Wed,  8 Mar 2023 05:28:47 -0800	[thread overview]
Message-ID: <20230308132903.465159-9-yi.l.liu@intel.com> (raw)
In-Reply-To: <20230308132903.465159-1-yi.l.liu@intel.com>

this suits more on what the code does.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/vfio/pci/vfio_pci_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c
index a5ab416cf476..65bbef562268 100644
--- a/drivers/vfio/pci/vfio_pci_core.c
+++ b/drivers/vfio/pci/vfio_pci_core.c
@@ -1308,9 +1308,8 @@ static int vfio_pci_ioctl_pci_hot_reset(struct vfio_pci_core_device *vdev,
 	}
 
 	/*
-	 * For each group_fd, get the group through the vfio external user
-	 * interface and store the group and iommu ID.  This ensures the group
-	 * is held across the reset.
+	 * Get the group file for each fd to ensure the group held across
+	 * the reset
 	 */
 	for (file_idx = 0; file_idx < hdr.count; file_idx++) {
 		struct file *file = fget(group_fds[file_idx]);
-- 
2.34.1


WARNING: multiple messages have this Message-ID (diff)
From: Yi Liu <yi.l.liu@intel.com>
To: alex.williamson@redhat.com, jgg@nvidia.com, kevin.tian@intel.com
Cc: joro@8bytes.org, robin.murphy@arm.com, cohuck@redhat.com,
	eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org,
	mjrosato@linux.ibm.com, chao.p.peng@linux.intel.com,
	yi.l.liu@intel.com, yi.y.sun@linux.intel.com, peterx@redhat.com,
	jasowang@redhat.com, shameerali.kolothum.thodi@huawei.com,
	lulu@redhat.com, suravee.suthikulpanit@amd.com,
	intel-gvt-dev@lists.freedesktop.org,
	intel-gfx@lists.freedesktop.org, linux-s390@vger.kernel.org,
	xudong.hao@intel.com, yan.y.zhao@intel.com,
	terrence.xu@intel.com
Subject: [PATCH v6 08/24] vfio/pci: Update comment around group_fd get in vfio_pci_ioctl_pci_hot_reset()
Date: Wed,  8 Mar 2023 05:28:47 -0800	[thread overview]
Message-ID: <20230308132903.465159-9-yi.l.liu@intel.com> (raw)
In-Reply-To: <20230308132903.465159-1-yi.l.liu@intel.com>

this suits more on what the code does.

Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
---
 drivers/vfio/pci/vfio_pci_core.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/vfio/pci/vfio_pci_core.c b/drivers/vfio/pci/vfio_pci_core.c
index a5ab416cf476..65bbef562268 100644
--- a/drivers/vfio/pci/vfio_pci_core.c
+++ b/drivers/vfio/pci/vfio_pci_core.c
@@ -1308,9 +1308,8 @@ static int vfio_pci_ioctl_pci_hot_reset(struct vfio_pci_core_device *vdev,
 	}
 
 	/*
-	 * For each group_fd, get the group through the vfio external user
-	 * interface and store the group and iommu ID.  This ensures the group
-	 * is held across the reset.
+	 * Get the group file for each fd to ensure the group held across
+	 * the reset
 	 */
 	for (file_idx = 0; file_idx < hdr.count; file_idx++) {
 		struct file *file = fget(group_fds[file_idx]);
-- 
2.34.1


  parent reply	other threads:[~2023-03-08 13:29 UTC|newest]

Thread overview: 204+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-03-08 13:28 [Intel-gfx] [PATCH v6 00/24] cover-letter: Add vfio_device cdev for iommufd support Yi Liu
2023-03-08 13:28 ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 01/24] vfio: Allocate per device file structure Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 02/24] vfio: Refine vfio file kAPIs for KVM Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 03/24] vfio: Accept vfio device file in the KVM facing kAPI Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 04/24] kvm/vfio: Rename kvm_vfio_group to prepare for accepting vfio device fd Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 05/24] kvm/vfio: Accept vfio device file from userspace Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-22 14:10   ` [Intel-gfx] " Xu Yilun
2023-03-22 14:10     ` Xu Yilun
2023-03-28  3:48     ` Liu, Yi L
2023-03-28  3:48       ` [Intel-gfx] " Liu, Yi L
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 06/24] vfio: Pass struct vfio_device_file * to vfio_device_open/close() Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 07/24] vfio: Block device access via device fd until device is opened Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  4:50   ` Tian, Kevin
2023-03-10  4:50     ` [Intel-gfx] " Tian, Kevin
2023-03-08 13:28 ` Yi Liu [this message]
2023-03-08 13:28   ` [PATCH v6 08/24] vfio/pci: Update comment around group_fd get in vfio_pci_ioctl_pci_hot_reset() Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 09/24] vfio/pci: Only need to check opened devices in the dev_set for hot reset Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  5:00   ` Tian, Kevin
2023-03-10  5:00     ` [Intel-gfx] " Tian, Kevin
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 10/24] vfio/pci: Rename the helpers and data in hot reset path to accept device fd Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  5:01   ` Tian, Kevin
2023-03-10  5:01     ` [Intel-gfx] " Tian, Kevin
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 11/24] vfio/pci: Accept device fd in VFIO_DEVICE_PCI_HOT_RESET ioctl Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  5:08   ` [Intel-gfx] " Tian, Kevin
2023-03-10  5:08     ` Tian, Kevin
2023-03-10  5:38     ` Liu, Yi L
2023-03-10  5:38       ` [Intel-gfx] " Liu, Yi L
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 12/24] vfio/pci: Allow passing zero-length fd array in VFIO_DEVICE_PCI_HOT_RESET Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  5:31   ` Tian, Kevin
2023-03-10  5:31     ` [Intel-gfx] " Tian, Kevin
2023-03-10  6:04     ` Liu, Yi L
2023-03-10  6:04       ` [Intel-gfx] " Liu, Yi L
2023-03-10  9:08       ` Tian, Kevin
2023-03-10  9:08         ` Tian, Kevin
2023-03-10 17:42       ` [Intel-gfx] " Jason Gunthorpe
2023-03-10 17:42         ` Jason Gunthorpe
2023-03-15 22:53   ` [Intel-gfx] " Alex Williamson
2023-03-15 22:53     ` Alex Williamson
2023-03-15 23:31     ` Tian, Kevin
2023-03-15 23:31       ` [Intel-gfx] " Tian, Kevin
2023-03-16  3:54       ` [offlist] " Liu, Yi L
2023-03-16  3:54         ` [Intel-gfx] " Liu, Yi L
2023-03-16  6:09         ` Tian, Kevin
2023-03-16  6:09           ` [Intel-gfx] " Tian, Kevin
2023-03-16  6:28           ` Liu, Yi L
2023-03-16  6:28             ` [Intel-gfx] " Liu, Yi L
2023-03-16  6:49             ` Nicolin Chen
2023-03-16  6:49               ` [Intel-gfx] " Nicolin Chen
2023-03-16 13:22               ` Liu, Yi L
2023-03-16 13:22                 ` [Intel-gfx] " Liu, Yi L
2023-03-16 21:27                 ` Nicolin Chen
2023-03-16 21:27                   ` [Intel-gfx] " Nicolin Chen
2023-03-16 18:45       ` Alex Williamson
2023-03-16 18:45         ` Alex Williamson
2023-03-16 23:29         ` Tian, Kevin
2023-03-16 23:29           ` [Intel-gfx] " Tian, Kevin
2023-03-17  0:22           ` Alex Williamson
2023-03-17  0:22             ` Alex Williamson
2023-03-17  0:57             ` Tian, Kevin
2023-03-17  0:57               ` [Intel-gfx] " Tian, Kevin
2023-03-17 15:15               ` Alex Williamson
2023-03-17 15:15                 ` Alex Williamson
2023-03-20 17:14                 ` [Intel-gfx] " Jason Gunthorpe
2023-03-20 17:14                   ` Jason Gunthorpe
2023-03-20 22:52                   ` [Intel-gfx] " Alex Williamson
2023-03-20 22:52                     ` Alex Williamson
2023-03-20 23:39                     ` [Intel-gfx] " Jason Gunthorpe
2023-03-20 23:39                       ` Jason Gunthorpe
2023-03-21 20:31                       ` [Intel-gfx] " Alex Williamson
2023-03-21 20:31                         ` Alex Williamson
2023-03-21 20:50                         ` Jason Gunthorpe
2023-03-21 20:50                           ` [Intel-gfx] " Jason Gunthorpe
2023-03-21 21:01                           ` Alex Williamson
2023-03-21 21:01                             ` [Intel-gfx] " Alex Williamson
2023-03-21 22:20                             ` Jason Gunthorpe
2023-03-21 22:20                               ` [Intel-gfx] " Jason Gunthorpe
2023-03-21 22:47                               ` Alex Williamson
2023-03-21 22:47                                 ` [Intel-gfx] " Alex Williamson
2023-03-22  4:42                                 ` Liu, Yi L
2023-03-22  4:42                                   ` [Intel-gfx] " Liu, Yi L
2023-03-22 12:23                                   ` Alex Williamson
2023-03-22 12:23                                     ` Alex Williamson
2023-03-22 12:27                                 ` Jason Gunthorpe
2023-03-22 12:27                                   ` [Intel-gfx] " Jason Gunthorpe
2023-03-22 12:36                                   ` Alex Williamson
2023-03-22 12:36                                     ` Alex Williamson
2023-03-22 12:47                                     ` Jason Gunthorpe
2023-03-22 12:47                                       ` [Intel-gfx] " Jason Gunthorpe
2023-03-24  9:09                             ` Tian, Kevin
2023-03-24  9:09                               ` [Intel-gfx] " Tian, Kevin
2023-03-24 13:14                               ` Jason Gunthorpe
2023-03-24 13:14                                 ` [Intel-gfx] " Jason Gunthorpe
2023-03-22  8:17                           ` Liu, Yi L
2023-03-22  8:17                             ` [Intel-gfx] " Liu, Yi L
2023-03-22 12:17                             ` Jason Gunthorpe
2023-03-22 12:17                               ` [Intel-gfx] " Jason Gunthorpe
2023-03-22 13:33                               ` Liu, Yi L
2023-03-22 13:33                                 ` [Intel-gfx] " Liu, Yi L
2023-03-22 13:43                                 ` Jason Gunthorpe
2023-03-22 13:43                                   ` [Intel-gfx] " Jason Gunthorpe
2023-03-23  3:15                                   ` Liu, Yi L
2023-03-23  3:15                                     ` [Intel-gfx] " Liu, Yi L
2023-03-23 12:02                                     ` Jason Gunthorpe
2023-03-23 12:02                                       ` Jason Gunthorpe
2023-03-24  9:25                                       ` Liu, Yi L
2023-03-24  9:25                                         ` [Intel-gfx] " Liu, Yi L
2023-03-27 11:57                                         ` Liu, Yi L
2023-03-27 11:57                                           ` [Intel-gfx] " Liu, Yi L
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 13/24] vfio/iommufd: Split the compat_ioas attach out from vfio_iommufd_bind() Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  8:08   ` [Intel-gfx] " Tian, Kevin
2023-03-10  8:08     ` Tian, Kevin
2023-03-10  8:22     ` Liu, Yi L
2023-03-10  8:22       ` [Intel-gfx] " Liu, Yi L
2023-03-10  9:10       ` Tian, Kevin
2023-03-10  9:10         ` Tian, Kevin
2023-03-11 10:24       ` Liu, Yi L
2023-03-11 10:24         ` [Intel-gfx] " Liu, Yi L
2023-03-13  2:06         ` Tian, Kevin
2023-03-13  2:06           ` [Intel-gfx] " Tian, Kevin
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 14/24] vfio: Add cdev_device_open_cnt to vfio_group Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 15/24] vfio: Make vfio_device_open() single open for device cdev path Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 16/24] vfio: Make vfio_device_first_open() to cover the noiommu mode in " Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  8:30   ` Tian, Kevin
2023-03-10  8:30     ` [Intel-gfx] " Tian, Kevin
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 17/24] vfio-iommufd: Make vfio_iommufd_bind() selectively return devid Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  8:31   ` Tian, Kevin
2023-03-10  8:31     ` [Intel-gfx] " Tian, Kevin
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 18/24] vfio-iommufd: Add detach_ioas support for physical VFIO devices Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 19/24] vfio-iommufd: Add detach_ioas support for emulated " Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10 23:42   ` Nicolin Chen
2023-03-10 23:42     ` [Intel-gfx] " Nicolin Chen
2023-03-15  6:15     ` Liu, Yi L
2023-03-15  6:15       ` [Intel-gfx] " Liu, Yi L
2023-03-15  6:25       ` Nicolin Chen
2023-03-15  6:25         ` [Intel-gfx] " Nicolin Chen
2023-03-08 13:28 ` [Intel-gfx] [PATCH v6 20/24] vfio: Add cdev for vfio_device Yi Liu
2023-03-08 13:28   ` Yi Liu
2023-03-10  8:48   ` [Intel-gfx] " Tian, Kevin
2023-03-10  8:48     ` Tian, Kevin
2023-03-10  9:59     ` [Intel-gfx] " Liu, Yi L
2023-03-10  9:59       ` Liu, Yi L
2023-03-08 13:29 ` [Intel-gfx] [PATCH v6 21/24] vfio: Add VFIO_DEVICE_BIND_IOMMUFD Yi Liu
2023-03-08 13:29   ` Yi Liu
2023-03-10  9:01   ` [Intel-gfx] " Tian, Kevin
2023-03-10  9:01     ` Tian, Kevin
2023-03-10  9:58     ` Liu, Yi L
2023-03-10  9:58       ` [Intel-gfx] " Liu, Yi L
2023-03-10 10:06       ` Tian, Kevin
2023-03-10 10:06         ` [Intel-gfx] " Tian, Kevin
2023-03-15  4:40         ` Liu, Yi L
2023-03-15  4:40           ` [Intel-gfx] " Liu, Yi L
2023-03-15  6:57           ` Tian, Kevin
2023-03-15  6:57             ` [Intel-gfx] " Tian, Kevin
2023-03-20 14:09           ` Jason Gunthorpe
2023-03-20 14:09             ` [Intel-gfx] " Jason Gunthorpe
2023-03-20 14:31             ` Yi Liu
2023-03-20 14:31               ` [Intel-gfx] " Yi Liu
2023-03-20 17:16               ` Jason Gunthorpe
2023-03-20 17:16                 ` Jason Gunthorpe
2023-03-21  1:30                 ` Tian, Kevin
2023-03-21  1:30                   ` [Intel-gfx] " Tian, Kevin
2023-03-21 12:00                   ` Jason Gunthorpe
2023-03-21 12:00                     ` [Intel-gfx] " Jason Gunthorpe
2023-03-21 14:37                     ` Liu, Yi L
2023-03-21 14:37                       ` [Intel-gfx] " Liu, Yi L
2023-03-21 14:41                       ` Jason Gunthorpe
2023-03-21 14:41                         ` [Intel-gfx] " Jason Gunthorpe
2023-03-21 14:51                         ` Liu, Yi L
2023-03-21 14:51                           ` [Intel-gfx] " Liu, Yi L
2023-03-21 14:58                           ` Jason Gunthorpe
2023-03-21 14:58                             ` [Intel-gfx] " Jason Gunthorpe
2023-03-21 15:10                             ` Liu, Yi L
2023-03-21 15:10                               ` [Intel-gfx] " Liu, Yi L
2023-03-21 16:54                               ` Jason Gunthorpe
2023-03-21 16:54                                 ` [Intel-gfx] " Jason Gunthorpe
2023-03-08 13:29 ` [Intel-gfx] [PATCH v6 22/24] vfio: Add VFIO_DEVICE_AT[DE]TACH_IOMMUFD_PT Yi Liu
2023-03-08 13:29   ` Yi Liu
2023-03-08 13:29 ` [Intel-gfx] [PATCH v6 23/24] vfio: Compile group optionally Yi Liu
2023-03-08 13:29   ` Yi Liu
2023-03-10  9:03   ` [Intel-gfx] " Tian, Kevin
2023-03-10  9:03     ` Tian, Kevin
2023-03-08 13:29 ` [Intel-gfx] [PATCH v6 24/24] docs: vfio: Add vfio device cdev description Yi Liu
2023-03-08 13:29   ` Yi Liu
2023-03-14 11:02 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for cover-letter: Add vfio_device cdev for iommufd support Patchwork
2023-03-24 10:39 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for cover-letter: Add vfio_device cdev for iommufd support (rev2) Patchwork

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