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[v5,01/14] mm/gup: don't pin migrated cma pages in movable zone

Message ID 20210119043920.155044-2-pasha.tatashin@soleen.com (mailing list archive)
State New
Headers show
Series prohibit pinning pages in ZONE_MOVABLE | expand

Commit Message

Pavel Tatashin Jan. 19, 2021, 4:39 a.m. UTC
In order not to fragment CMA the pinned pages are migrated. However,
they are migrated to ZONE_MOVABLE, which also should not have pinned pages.

Remove __GFP_MOVABLE, so pages can be migrated to zones where pinning
is allowed.

Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
Acked-by: Michal Hocko <mhocko@suse.com>
 mm/gup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series


diff --git a/mm/gup.c b/mm/gup.c
index 3e086b073624..24f25b1e9103 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -1563,7 +1563,7 @@  static long check_and_migrate_cma_pages(struct mm_struct *mm,
 	long ret = nr_pages;
 	struct migration_target_control mtc = {
 		.nid = NUMA_NO_NODE,
-		.gfp_mask = GFP_USER | __GFP_MOVABLE | __GFP_NOWARN,
+		.gfp_mask = GFP_USER | __GFP_NOWARN,