diff options
| author | Ralph Campbell <rcampbell@nvidia.com> | 2020-07-24 01:30:00 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2020-07-28 22:20:33 +0300 |
| commit | 5143192cd410c4fc83be09a2e73423765aee072b (patch) | |
| tree | e6943dd73d6cad7a9afc3fdeeb90542d5bef4a50 /mm/migrate.c | |
| parent | 1a77decd0caed0bc5b6f5e474981d574076f0841 (diff) | |
| download | linux-5143192cd410c4fc83be09a2e73423765aee072b.tar.xz | |
mm/migrate: add a flags parameter to migrate_vma
The src_owner field in struct migrate_vma is being used for two purposes,
it acts as a selection filter for which types of pages are to be migrated
and it identifies device private pages owned by the caller.
Split this into separate parameters so the src_owner field can be used
just to identify device private pages owned by the caller of
migrate_vma_setup().
Rename the src_owner field to pgmap_owner to reflect it is now used only
to identify which device private pages to migrate.
Link: https://lore.kernel.org/r/20200723223004.9586-3-rcampbell@nvidia.com
Signed-off-by: Ralph Campbell <rcampbell@nvidia.com>
Reviewed-by: Bharata B Rao <bharata@linux.ibm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'mm/migrate.c')
| -rw-r--r-- | mm/migrate.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/mm/migrate.c b/mm/migrate.c index f37729673558..e3ea68e3a08b 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2287,7 +2287,9 @@ again: goto next; page = device_private_entry_to_page(entry); - if (page->pgmap->owner != migrate->src_owner) + if (!(migrate->flags & + MIGRATE_VMA_SELECT_DEVICE_PRIVATE) || + page->pgmap->owner != migrate->pgmap_owner) goto next; mpfn = migrate_pfn(page_to_pfn(page)) | @@ -2295,7 +2297,7 @@ again: if (is_write_device_private_entry(entry)) mpfn |= MIGRATE_PFN_WRITE; } else { - if (migrate->src_owner) + if (!(migrate->flags & MIGRATE_VMA_SELECT_SYSTEM)) goto next; pfn = pte_pfn(pte); if (is_zero_pfn(pfn)) { |