The patch titled
Subject: drivers: virtio_mem: use pageblock size as the minimum virtio_mem size.
has been added to the -mm tree. Its filename is
drivers-virtio_mem-use-pageblock-size-as-the-minimum-virtio_mem-size.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/drivers-virtio_mem-use-pageblock-size-as-the-minimum-virtio_mem-size.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/drivers-virtio_mem-use-pageblock-size-as-the-minimum-virtio_mem-size.patch
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------------------------------------------------------
From: Zi Yan <ziy@xxxxxxxxxx>
Subject: drivers: virtio_mem: use pageblock size as the minimum virtio_mem size.
alloc_contig_range() now only needs to be aligned to pageblock_nr_pages,
drop virtio_mem size requirement that it needs to be MAX_ORDER_NR_PAGES.
Link: https://lkml.kernel.org/r/20220425143118.2850746-7-zi.yan@xxxxxxxx
Signed-off-by: Zi Yan <ziy@xxxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Eric Ren <renzhengeek@xxxxxxxxx>
Cc: kernel test robot <lkp@xxxxxxxxx>
Cc: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>
Cc: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Cc: Minchan Kim <minchan@xxxxxxxxxx>
Cc: Oscar Salvador <osalvador@xxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/virtio/virtio_mem.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/drivers/virtio/virtio_mem.c~drivers-virtio_mem-use-pageblock-size-as-the-minimum-virtio_mem-size
+++ a/drivers/virtio/virtio_mem.c
@@ -2476,10 +2476,10 @@ static int virtio_mem_init_hotplug(struc
VIRTIO_MEM_DEFAULT_OFFLINE_THRESHOLD);
/*
- * TODO: once alloc_contig_range() works reliably with pageblock
- * granularity on ZONE_NORMAL, use pageblock_nr_pages instead.
+ * alloc_contig_range() works reliably with pageblock
+ * granularity on ZONE_NORMAL, use pageblock_nr_pages.
*/
- sb_size = PAGE_SIZE * MAX_ORDER_NR_PAGES;
+ sb_size = PAGE_SIZE * pageblock_nr_pages;
sb_size = max_t(uint64_t, vm->device_block_size, sb_size);
if (sb_size < memory_block_size_bytes() && !force_bbm) {
_
Patches currently in -mm which might be from ziy@xxxxxxxxxx are
mm-page_alloc-simplify-pageblock-migratetype-check-in-__free_one_page.patch
mm-wrap-__find_buddy_pfn-with-a-necessary-buddy-page-validation.patch
mm-wrap-__find_buddy_pfn-with-a-necessary-buddy-page-validation-v4.patch
mm-page_isolation-move-has_unmovable_pages-to-mm-page_isolationc.patch
mm-page_isolation-check-specified-range-for-unmovable-pages.patch
mm-make-alloc_contig_range-work-at-pageblock-granularity.patch
mm-page_isolation-enable-arbitrary-range-page-isolation.patch
mm-cma-use-pageblock_order-as-the-single-alignment.patch
drivers-virtio_mem-use-pageblock-size-as-the-minimum-virtio_mem-size.patch
