+ mm-mm_initc-only-align-start-of-zone_movalbe-on-nodes-with-memory.patch added to mm-unstable branch

+ mm-mm_initc-only-align-start-of-zone_movalbe-on-nodes-with-memory.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/mm_init.c: only align start of ZONE_MOVALBE on nodes with memory
has been added to the -mm mm-unstable branch.  Its filename is
     mm-mm_initc-only-align-start-of-zone_movalbe-on-nodes-with-memory.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-mm_initc-only-align-start-of-zone_movalbe-on-nodes-with-memory.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: Wei Yang <richard.weiyang@gmail.com>
Subject: mm/mm_init.c: only align start of ZONE_MOVALBE on nodes with memory
Date: Tue, 11 Feb 2025 08:29:00 +0000

At the beginning of find_zone_movable_pfns_for_nodes(), it has properly
set node_states[N_MEMORY] in early_calculate_totalpages().

Instead of iterating over all possible nodes, we can just do the alignment
on nodes with memory.

Link: https://lkml.kernel.org/r/20250211082900.10877-1-richard.weiyang@gmail.com
Signed-off-by: Wei Yang <richard.weiyang@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: "Mike Rapoport (IBM)" <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/mm_init.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/mm_init.c~mm-mm_initc-only-align-start-of-zone_movalbe-on-nodes-with-memory
+++ a/mm/mm_init.c
@@ -547,7 +547,7 @@ restart:
 
 out2:
 	/* Align start of ZONE_MOVABLE on all nids to MAX_ORDER_NR_PAGES */
-	for (nid = 0; nid < MAX_NUMNODES; nid++) {
+	for_each_node_state(nid, N_MEMORY) {
 		unsigned long start_pfn, end_pfn;
 
 		zone_movable_pfn[nid] =
_

Patches currently in -mm which might be from richard.weiyang@gmail.com are

mm-mm_initc-use-round_up-to-align-movable-range.patch
mm-mm_initc-only-align-start-of-zone_movalbe-on-nodes-with-memory.patch