RE: [PATCH v2 2/7] iommufd: Add iommufd_lock_obj() around the auto-domains hwpts

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: Jason Gunthorpe <jgg@xxxxxxxxxx>, "iommu@xxxxxxxxxxxxxxx" <iommu@xxxxxxxxxxxxxxx>, "linux-kselftest@xxxxxxxxxxxxxxx" <linux-kselftest@xxxxxxxxxxxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>
Subject: RE: [PATCH v2 2/7] iommufd: Add iommufd_lock_obj() around the auto-domains hwpts
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Fri, 24 Feb 2023 06:12:43 +0000
Accept-language: en-US
Cc: Nicolin Chen <nicolinc@xxxxxxxxxx>, "Liu, Yi L" <yi.l.liu@xxxxxxxxx>
In-reply-to: <2-v2-406f7ac07936+6a-iommufd_hwpt_jgg@nvidia.com>
Thread-index: AQHZRwEIXrS9duhqUkO8yEIDyvAwp67dn+rQ
Thread-topic: [PATCH v2 2/7] iommufd: Add iommufd_lock_obj() around the auto-domains hwpts

> From: Jason Gunthorpe <jgg@xxxxxxxxxx>
> Sent: Thursday, February 23, 2023 5:03 AM
> 
> A later patch will require this locking - currently under the ioas mutex
> the hwpt can not have a 0 reference and be on the list.
> 
> Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>

References:
- [PATCH v2 0/7] Revise the hwpt lifetime model
  - From: Jason Gunthorpe
- [PATCH v2 2/7] iommufd: Add iommufd_lock_obj() around the auto-domains hwpts
  - From: Jason Gunthorpe

Prev by Date: [PATCH v3 0/3] mm: process/cgroup ksm support
Next by Date: RE: [PATCH v2 3/7] iommufd: Move ioas related HWPT destruction into iommufd_hw_pagetable_destroy()
Previous by thread: [PATCH v2 2/7] iommufd: Add iommufd_lock_obj() around the auto-domains hwpts
Next by thread: [PATCH v2 1/7] iommufd: Assert devices_lock for iommufd_hw_pagetable_has_group()
Index(es):
- Date
- Thread

[Index of Archives] [Linux Wireless] [Linux Kernel] [ATH6KL] [Linux Bluetooth] [Linux Netdev] [Kernel Newbies] [Share Photos] [IDE] [Security] [Git] [Netfilter] [Bugtraq] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Linux ATA RAID] [Samba] [Device Mapper]