[PATCH v5 09/36] mm/migrate: disallow userland driven migration for private nodes
Gregory Price <[email protected]>
| Newsgroups | dev.linux.lists.damon,dev.linux.lists.driver-core,dev.linux.lists.nvdimm,org.kernel.vger.cgroups,org.kernel.vger.kvm,org.kernel.vger.linux-cxl,org.kernel.vger.linux-debuggers,org.kernel.vger.linux-doc,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kernel.vger.linux-kselftest,org.kvack.linux-mm |
|---|---|
| Message-ID | <[email protected]> |
Use the same filter locations as zone_device folios to disallow userland driven migration requests for private node memory. Signed-off-by: Gregory Price <[email protected]> --- mm/migrate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/mm/migrate.c b/mm/migrate.c index a8a86141dbb54..d20674c07b947 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2268,7 +2268,7 @@ static int __add_folio_for_migration(struct folio *folio, int node, if (is_zero_folio(folio) || is_huge_zero_folio(folio)) return -EFAULT; - if (folio_is_zone_device(folio)) + if (folio_is_private_managed(folio)) return -ENOENT; if (folio_nid(folio) == node) @@ -2477,7 +2477,7 @@ static void do_pages_stat_array(struct mm_struct *mm, unsigned long nr_pages, if (folio) { if (is_zero_folio(folio) || is_huge_zero_folio(folio)) err = -EFAULT; - else if (folio_is_zone_device(folio)) + else if (folio_is_private_managed(folio)) err = -ENOENT; else err = folio_nid(folio); -- 2.53.0-Meta