From: Joerg Roedel <joro@8bytes.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Will Deacon <will@kernel.org>, Ashish Mhetre <amhetre@nvidia.com>,
Jason Gunthorpe <jgg@nvidia.com>,
kevin.tian@intel.com, ashok.raj@intel.com,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/1] iommu: Extend mutex lock scope in iommu_probe_device()
Date: Mon, 6 Dec 2021 12:40:11 +0100 [thread overview]
Message-ID: <Ya32m0n4r4jeI+46@8bytes.org> (raw)
In-Reply-To: <20211108061349.1985579-1-baolu.lu@linux.intel.com>
On Mon, Nov 08, 2021 at 02:13:49PM +0800, Lu Baolu wrote:
> Extend the scope of holding group->mutex so that it can cover the default
> domain check/attachment and direct mappings of reserved regions.
>
> Cc: Ashish Mhetre <amhetre@nvidia.com>
> Fixes: 211ff31b3d33b ("iommu: Fix race condition during default domain allocation")
> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
> ---
> drivers/iommu/iommu.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
Applied, thanks. The __iommu_attach_device() function is called under
group->mutex everywhere else, so it makes here too.
Regards,
Joerg
prev parent reply other threads:[~2021-12-06 11:40 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-08 6:13 [PATCH 1/1] iommu: Extend mutex lock scope in iommu_probe_device() Lu Baolu
2021-12-06 11:40 ` Joerg Roedel [this message]
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