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authorMiaohe Lin <[email protected]>2022-09-16 15:22:44 +0800
committerAndrew Morton <[email protected]>2022-10-03 14:03:28 -0700
commit638a9ae97ab596f1f7b7522dad709e69cb5b4e9d (patch)
tree1432bf7efd32ef715d6be7508ffad4a7ddd268a0
parentb89f1735169b8ab54b6a03bf4823657ee4e30073 (diff)
mm: remove obsolete macro NR_PCP_ORDER_MASK and NR_PCP_ORDER_WIDTH
Since commit 8b10b465d0e1 ("mm/page_alloc: free pages in a single pass during bulk free"), they're not used anymore. Remove them. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Miaohe Lin <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Reviewed-by: Anshuman Khandual <[email protected]> Reviewed-by: Oscar Salvador <[email protected]> Cc: Matthew Wilcox <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
-rw-r--r--include/linux/mmzone.h7
-rw-r--r--mm/page_alloc.c1
2 files changed, 0 insertions, 8 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index c69c08156822..3ff1e757d5aa 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -564,13 +564,6 @@ enum zone_watermarks {
#define NR_LOWORDER_PCP_LISTS (MIGRATE_PCPTYPES * (PAGE_ALLOC_COSTLY_ORDER + 1))
#define NR_PCP_LISTS (NR_LOWORDER_PCP_LISTS + NR_PCP_THP)
-/*
- * Shift to encode migratetype and order in the same integer, with order
- * in the least significant bits.
- */
-#define NR_PCP_ORDER_WIDTH 8
-#define NR_PCP_ORDER_MASK ((1<<NR_PCP_ORDER_WIDTH) - 1)
-
#define min_wmark_pages(z) (z->_watermark[WMARK_MIN] + z->watermark_boost)
#define low_wmark_pages(z) (z->_watermark[WMARK_LOW] + z->watermark_boost)
#define high_wmark_pages(z) (z->_watermark[WMARK_HIGH] + z->watermark_boost)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 49efaf9963d1..fa3dd2e1d566 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1584,7 +1584,6 @@ static void free_pcppages_bulk(struct zone *zone, int count,
order = pindex_to_order(pindex);
nr_pages = 1 << order;
- BUILD_BUG_ON(MAX_ORDER >= (1<<NR_PCP_ORDER_WIDTH));
do {
int mt;