From: "Tian, Kevin" <kevin.tian@intel.com>
To: Nicolin Chen <nicolinc@nvidia.com>,
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Subject: RE: [PATCH v2 4/5] vfio/iommu_type1: Clean up update_dirty_scope in detach_group()
Date: Thu, 16 Jun 2022 06:45:09 +0000 [thread overview]
Message-ID: <BL1PR11MB5271A40D57BEBBA0BAA4C0BB8CAC9@BL1PR11MB5271.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20220616000304.23890-5-nicolinc@nvidia.com>
> From: Nicolin Chen
> Sent: Thursday, June 16, 2022 8:03 AM
>
> All devices in emulated_iommu_groups have pinned_page_dirty_scope
> set, so the update_dirty_scope in the first list_for_each_entry
> is always false. Clean it up, and move the "if update_dirty_scope"
> part from the detach_group_done routine to the domain_list part.
>
> Rename the "detach_group_done" goto label accordingly.
>
> Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
> Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>, with one nit:
> @@ -2469,7 +2467,7 @@ static void vfio_iommu_type1_detach_group(void
> *iommu_data,
> WARN_ON(iommu->notifier.head);
> vfio_iommu_unmap_unpin_all(iommu);
> }
> - goto detach_group_done;
> + goto out_unlock;
...
> +out_unlock:
> mutex_unlock(&iommu->lock);
> }
>
I'd just replace the goto with a direct unlock and then return there.
the readability is slightly better.
next prev parent reply other threads:[~2022-06-16 6:45 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-16 0:02 [PATCH v2 0/5] Simplify vfio_iommu_type1 attach/detach routine Nicolin Chen
2022-06-16 0:03 ` [PATCH v2 1/5] iommu: Return -EMEDIUMTYPE for incompatible domain and device/group Nicolin Chen
2022-06-16 2:09 ` Baolu Lu
2022-06-16 2:40 ` Nicolin Chen
2022-06-16 6:28 ` Tian, Kevin
2022-06-16 0:03 ` [PATCH v2 2/5] vfio/iommu_type1: Prefer to reuse domains vs match enforced cache coherency Nicolin Chen
2022-06-16 6:29 ` Tian, Kevin
2022-06-21 22:46 ` Alex Williamson
2022-06-21 23:47 ` Nicolin Chen
2022-06-16 0:03 ` [PATCH v2 3/5] vfio/iommu_type1: Remove the domain->ops comparison Nicolin Chen
2022-06-16 6:40 ` Tian, Kevin
2022-06-16 22:23 ` Nicolin Chen
2022-06-22 7:54 ` Robin Murphy
2022-06-23 3:50 ` Tian, Kevin
2022-06-23 7:47 ` Nicolin Chen
2022-06-24 13:16 ` Jason Gunthorpe
2022-06-24 18:31 ` Robin Murphy
2022-06-24 18:46 ` Jason Gunthorpe
2022-06-16 0:03 ` [PATCH v2 4/5] vfio/iommu_type1: Clean up update_dirty_scope in detach_group() Nicolin Chen
2022-06-16 6:45 ` Tian, Kevin [this message]
2022-06-16 22:26 ` Nicolin Chen
2022-06-16 0:03 ` [PATCH v2 5/5] vfio/iommu_type1: Simplify group attachment Nicolin Chen
2022-06-16 7:08 ` Tian, Kevin
2022-06-16 22:40 ` Nicolin Chen
2022-06-17 2:53 ` Tian, Kevin
2022-06-17 23:07 ` Nicolin Chen
2022-06-20 4:03 ` Jason Gunthorpe
2022-06-21 20:59 ` Nicolin Chen
2022-06-20 10:11 ` Robin Murphy
2022-06-21 21:08 ` Nicolin Chen
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