nouveau: Fix migrate_to_ram() for faulting page

Browse source

Commit 16ce101db8 ("mm/memory.c: fix race when faulting a device private
page") changed the migrate_to_ram() callback to take a reference on the
device page to ensure it can't be freed while handling the fault.
Unfortunately the corresponding update to Nouveau to accommodate this
change was inadvertently dropped from that patch causing GPU to CPU
migration to fail so add it here.

Signed-off-by: Alistair Popple <apopple@nvidia.com>
Fixes: 16ce101db8 ("mm/memory.c: fix race when faulting a device private page")
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Ralph Campbell <rcampbell@nvidia.com>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221019122934.866205-1-apopple@nvidia.com

...

This commit is contained in:

Alistair Popple 2022-10-19 23:29:34 +11:00 • committed by Lyude Paul

parent 3facae0649

commit 1beca7f147

1 changed files with 1 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

drivers/gpu/drm/nouveau/nouveau_dmem.c

View file