The quilt patch titled
Subject: mm/mm_init.c: use round_up() to calculate usermap size
has been removed from the -mm tree. Its filename was
mm-mm_initc-use-round_up-to-calculate-usermap-size.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Wei Yang <richard.weiyang@xxxxxxxxx>
Subject: mm/mm_init.c: use round_up() to calculate usermap size
Date: Wed, 12 Feb 2025 01:38:18 +0000
Since pageblock_nr_pages and BITS_PER_LONG are power of 2, we could use
round_up() to calculate it.
Also we have renamed blockflags to pageblock_flags, adjust the comment
accordingly.
Link: https://lkml.kernel.org/r/20250212013818.873-1-richard.weiyang@xxxxxxxxx
Signed-off-by: Wei Yang <richard.weiyang@xxxxxxxxx>
Suggested-by: Shivank Garg <shivankg@xxxxxxx>
Reviewed-by: Shivank Garg <shivankg@xxxxxxx>
Acked-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx>
Reviewed-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/mm_init.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/mm/mm_init.c~mm-mm_initc-use-round_up-to-calculate-usermap-size
+++ a/mm/mm_init.c
@@ -1431,7 +1431,7 @@ void __meminit init_currently_empty_zone
#ifndef CONFIG_SPARSEMEM
/*
- * Calculate the size of the zone->blockflags rounded to an unsigned long
+ * Calculate the size of the zone->pageblock_flags rounded to an unsigned long
* Start by making sure zonesize is a multiple of pageblock_order by rounding
* up. Then use 1 NR_PAGEBLOCK_BITS worth of bits per pageblock, finally
* round what is now in bits to nearest long in bits, then return it in
@@ -1442,10 +1442,10 @@ static unsigned long __init usemap_size(
unsigned long usemapsize;
zonesize += zone_start_pfn & (pageblock_nr_pages-1);
- usemapsize = roundup(zonesize, pageblock_nr_pages);
+ usemapsize = round_up(zonesize, pageblock_nr_pages);
usemapsize = usemapsize >> pageblock_order;
usemapsize *= NR_PAGEBLOCK_BITS;
- usemapsize = roundup(usemapsize, BITS_PER_LONG);
+ usemapsize = round_up(usemapsize, BITS_PER_LONG);
return usemapsize / BITS_PER_BYTE;
}
_
Patches currently in -mm which might be from richard.weiyang@xxxxxxxxx are
lib-rbtree-enable-userland-test-suite-for-rbtree-related-data-structure.patch
lib-rbtree-split-tests.patch
lib-rbtree-add-random-seed.patch
lib-interval_tree-add-test-case-for-interval_tree_iter_xxx-helpers.patch
lib-interval_tree-add-test-case-for-span-iteration.patch
lib-interval_tree-skip-the-check-before-go-to-the-right-subtree.patch
lib-interval_tree-fix-the-comment-of-interval_tree_span_iter_next_gap.patch
