Messages in this thread | | | Date | Mon, 8 Oct 2018 18:49:34 +0200 | From | Jan Kara <> | Subject | Re: [PATCH v3 3/3] infiniband/mm: convert put_page() to put_user_page*() |
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On Fri 05-10-18 19:49:49, john.hubbard@gmail.com wrote: > From: John Hubbard <jhubbard@nvidia.com> > > For code that retains pages via get_user_pages*(), > release those pages via the new put_user_page(), or > put_user_pages*(), instead of put_page() > > This prepares for eventually fixing the problem described > in [1], and is following a plan listed in [2], [3], [4]. > > [1] https://lwn.net/Articles/753027/ : "The Trouble with get_user_pages()" > > [2] https://lkml.kernel.org/r/20180709080554.21931-1-jhubbard@nvidia.com > Proposed steps for fixing get_user_pages() + DMA problems. > > [3]https://lkml.kernel.org/r/20180710082100.mkdwngdv5kkrcz6n@quack2.suse.cz > Bounce buffers (otherwise [2] is not really viable). > > [4] https://lkml.kernel.org/r/20181003162115.GG24030@quack2.suse.cz > Follow-up discussions. > > CC: Doug Ledford <dledford@redhat.com> > CC: Jason Gunthorpe <jgg@ziepe.ca> > CC: Mike Marciniszyn <mike.marciniszyn@intel.com> > CC: Dennis Dalessandro <dennis.dalessandro@intel.com> > CC: Christian Benvenuti <benve@cisco.com> > > CC: linux-rdma@vger.kernel.org > CC: linux-kernel@vger.kernel.org > CC: linux-mm@kvack.org > Signed-off-by: John Hubbard <jhubbard@nvidia.com>
Looks good to me. You can add:
Reviewed-by: Jan Kara <jack@suse.cz>
Honza -- Jan Kara <jack@suse.com> SUSE Labs, CR
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