diff options
| author | Alistair Popple <apopple@nvidia.com> | 2021-06-30 18:54:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-01 11:06:03 -0700 |
| commit | 6b49bf6ddbb0d7992c816846acfa5fd1cf751c36 (patch) | |
| tree | 5699f9b7052f65a8df38c1e37c93d26408faf6e9 /Documentation | |
| parent | a98a2f0c8ce1b2138cb8e3ae410444dedcc14809 (diff) | |
| download | linux-6b49bf6ddbb0d7992c816846acfa5fd1cf751c36.tar.gz | |
mm: rename migrate_pgmap_owner
MMU notifier ranges have a migrate_pgmap_owner field which is used by drivers to store a pointer. This is subsequently used by the driver callback to filter MMU_NOTIFY_MIGRATE events. Other notifier event types can also benefit from this filtering, so rename the 'migrate_pgmap_owner' field to 'owner' and create a new notifier initialisation function to initialise this field. Link: https://lkml.kernel.org/r/20210616105937.23201-6-apopple@nvidia.com Signed-off-by: Alistair Popple <apopple@nvidia.com> Suggested-by: Peter Xu <peterx@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Cc: Ben Skeggs <bskeggs@redhat.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Hugh Dickins <hughd@google.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Cc: "Matthew Wilcox (Oracle)" <willy@infradead.org> Cc: Ralph Campbell <rcampbell@nvidia.com> Cc: Shakeel Butt <shakeelb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/vm/hmm.rst | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/vm/hmm.rst b/Documentation/vm/hmm.rst index 09e28507f5b2..3df79307a797 100644 --- a/Documentation/vm/hmm.rst +++ b/Documentation/vm/hmm.rst @@ -332,7 +332,7 @@ between device driver specific code and shared common code: walks to fill in the ``args->src`` array with PFNs to be migrated. The ``invalidate_range_start()`` callback is passed a ``struct mmu_notifier_range`` with the ``event`` field set to - ``MMU_NOTIFY_MIGRATE`` and the ``migrate_pgmap_owner`` field set to + ``MMU_NOTIFY_MIGRATE`` and the ``owner`` field set to the ``args->pgmap_owner`` field passed to migrate_vma_setup(). This is allows the device driver to skip the invalidation callback and only invalidate device private MMU mappings that are actually migrating. |