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From: Jason Gunthorpe <jgg@mellanox.com>
To: Ralph Campbell <rcampbell@nvidia.com>
Cc: "linux-rdma@vger.kernel.org" <linux-rdma@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-kselftest@vger.kernel.org"
	<linux-kselftest@vger.kernel.org>,
	Jerome Glisse <jglisse@redhat.com>,
	John Hubbard <jhubbard@nvidia.com>,
	Christoph Hellwig <hch@lst.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	Shuah Khan <shuah@kernel.org>
Subject: Re: [PATCH v5 1/2] mm/mmu_notifier: make interval notifier updates safe
Date: Tue, 14 Jan 2020 12:45:26 +0000
Message-ID: <20200114124523.GM20978@mellanox.com> (raw)
In-Reply-To: <633a3dda-d4d7-1233-b290-53d36fb8fda1@nvidia.com>

On Mon, Jan 13, 2020 at 02:44:52PM -0800, Ralph Campbell wrote:

> I'm using the device driver lock to serialize find/insert/update/remove
> changes to the interval tree.

The device driver lock can't really fully serialize this as it doesn't
effect how the intersection lookup runs.

Jason

  reply index

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-16 19:57 [PATCH v5 0/2] mm/hmm/test: add self tests for HMM Ralph Campbell
2019-12-16 19:57 ` [PATCH v5 1/2] mm/mmu_notifier: make interval notifier updates safe Ralph Campbell
2019-12-17 20:51   ` Jason Gunthorpe
2019-12-17 21:50     ` Ralph Campbell
2020-01-09 19:48   ` Jason Gunthorpe
2020-01-09 22:01     ` Ralph Campbell
2020-01-09 23:25       ` Jason Gunthorpe
2020-01-13 22:44         ` Ralph Campbell
2020-01-14 12:45           ` Jason Gunthorpe [this message]
2020-01-15 22:04             ` Ralph Campbell
2020-01-16 14:13               ` Jason Gunthorpe
2019-12-16 19:57 ` [PATCH v5 2/2] mm/hmm/test: add self tests for HMM Ralph Campbell

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