From: Christoph Hellwig <hch@infradead.org>
To: mpenttil@redhat.com
Cc: linux-mm@kvack.org, dri-devel@lists.freedesktop.org,
intel-xe@lists.freedesktop.org, linux-kernel@vger.kernel.org,
David Hildenbrand <david@kernel.org>,
Jason Gunthorpe <jgg@nvidia.com>,
Leon Romanovsky <leonro@nvidia.com>,
Alistair Popple <apopple@nvidia.com>,
Balbir Singh <balbirs@nvidia.com>, Zi Yan <ziy@nvidia.com>,
Matthew Brost <matthew.brost@intel.com>,
Andrew Morton <akpm@linux-foundation.org>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
Vlastimil Babka <vbabka@suse.cz>, Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>
Subject: Re: [PATCH v15 00/11] migrate on fault for device pages
Date: Fri, 25 Sep 2026 02:07:24 -0700 [thread overview]
Message-ID: <arY5zKsLuf7f_EYw@infradead.org> (raw)
In-Reply-To: <20260924065313.899730-1-mpenttil@redhat.com>
On Thu, Sep 24, 2026 at 09:53:02AM +0300, mpenttil@redhat.com wrote:
> Add a new flag to HMM APIs, HMM_PFN_REQ_MIGRATE,
> which tells to prepare for migration also during fault handling.
> For the migrate_vma_setup() call paths, new flags, MIGRATE_VMA_FAULT,
> and MIGRATE_VMA_WRITE are added to tell to add fault handling to migrate.
Who is going to use this? The series seems to lack an actual user for
it.
next prev parent reply other threads:[~2026-09-25 9:07 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-24 6:53 mpenttil
2026-09-24 6:53 ` [PATCH v15 01/11] mm/Kconfig: changes for " mpenttil
2026-09-24 6:53 ` [PATCH v15 02/11] mm: add helper to convert HMM pfn to migrate pfn mpenttil
2026-09-24 6:53 ` [PATCH v15 03/11] mm/hmm: preparations for HMM to participate in migration mpenttil
2026-09-24 6:53 ` [PATCH v15 04/11] mm/hmm: do the plumbing " mpenttil
2026-09-24 6:53 ` [PATCH v15 05/11] mm/hmm: migrate collection in HMM pagewalk - pte level mpenttil
2026-09-24 6:53 ` [PATCH v15 06/11] mm/hmm: migrate collection in HMM pagewalk - pmd level mpenttil
2026-09-24 6:53 ` [PATCH v15 07/11] mm/hmm: add lazy MMU mode support for migration in HMM pagewalk mpenttil
2026-09-24 6:53 ` [PATCH v15 08/11] mm/hmm: implement rollback for device page " mpenttil
2026-09-24 6:53 ` [PATCH v15 09/11] mm: enable device page migration from " mpenttil
2026-09-24 6:53 ` [PATCH v15 10/11] lib/test_hmm: add a new testcase for the migrate on fault mpenttil
2026-09-24 6:53 ` [PATCH v15 11/11] Documentation/mm/hmm: document migration through hmm_range_fault() mpenttil
2026-09-25 9:07 ` Christoph Hellwig [this message]
2026-09-25 10:23 ` [PATCH v15 00/11] migrate on fault for device pages Mika Penttilä
2026-09-25 12:47 ` Jason Gunthorpe
2026-09-25 13:22 ` Mika Penttilä
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