[PATCH v5 1/3] mm/mempolicy: use policy_node helper with MPOL_PREFERRED_MANY
From: Aneesh Kumar K.V <hidden>
Date: 2021-11-16 06:43:14
Also in:
linux-mm
Subsystem:
memory management, memory management - memory policy and migration, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Linus Torvalds
A followup patch will enable setting a home node with MPOL_PREFERRED_MANY memory policy. To facilitate that switch to using policy_node helper. There is no functional change in this patch. Cc: Ben Widawsky <redacted> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Feng Tang <redacted> Cc: Michal Hocko <mhocko@kernel.org> Cc: Andrea Arcangeli <redacted> Cc: Mel Gorman <redacted> Cc: Mike Kravetz <redacted> Cc: Randy Dunlap <redacted> Cc: Vlastimil Babka <redacted> Cc: Andi Kleen <redacted> Cc: Dan Williams <redacted> Cc: Huang Ying <redacted> Cc: linux-api@vger.kernel.org Signed-off-by: Aneesh Kumar K.V <redacted> --- mm/mempolicy.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 10e9c87260ed..673b5fb13346 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c@@ -2061,7 +2061,7 @@ static struct page *alloc_pages_preferred_many(gfp_t gfp, unsigned int order, preferred_gfp &= ~(__GFP_DIRECT_RECLAIM | __GFP_NOFAIL); page = __alloc_pages(preferred_gfp, order, nid, &pol->nodes); if (!page) - page = __alloc_pages(gfp, order, numa_node_id(), NULL); + page = __alloc_pages(gfp, order, nid, NULL); return page; }
@@ -2102,6 +2102,7 @@ struct page *alloc_pages_vma(gfp_t gfp, int order, struct vm_area_struct *vma, } if (pol->mode == MPOL_PREFERRED_MANY) { + node = policy_node(gfp, pol, node); page = alloc_pages_preferred_many(gfp, order, node, pol); mpol_cond_put(pol); goto out;
@@ -2186,7 +2187,7 @@ struct page *alloc_pages(gfp_t gfp, unsigned order) page = alloc_page_interleave(gfp, order, interleave_nodes(pol)); else if (pol->mode == MPOL_PREFERRED_MANY) page = alloc_pages_preferred_many(gfp, order, - numa_node_id(), pol); + policy_node(gfp, pol, numa_node_id()), pol); else page = __alloc_pages(gfp, order, policy_node(gfp, pol, numa_node_id()),
--
2.31.1