+ mm-page_alloc-remove-unneeded-variable-base.patch added to mm-unstable branch

+ mm-page_alloc-remove-unneeded-variable-base.patch added to mm-unstable branch

[Andrew Morton]

The patch titled
     Subject: mm/page_alloc: remove unneeded variable base
has been added to the -mm mm-unstable branch.  Its filename is
     mm-page_alloc-remove-unneeded-variable-base.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_alloc-remove-unneeded-variable-base.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: Miaohe Lin <linmiaohe@huawei.com>
Subject: mm/page_alloc: remove unneeded variable base
Date: Thu, 3 Aug 2023 19:49:34 +0800

Since commit 5d0a661d808f ("mm/page_alloc: use only one PCP list for
THP-sized allocations"), local variable base is just as same as order.  So
remove it.  No functional change intended.

Link: https://lkml.kernel.org/r/20230803114934.693989-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/page_alloc.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/mm/page_alloc.c~mm-page_alloc-remove-unneeded-variable-base
+++ a/mm/page_alloc.c
@@ -538,8 +538,6 @@ out:
 
 static inline unsigned int order_to_pindex(int migratetype, int order)
 {
-	int base = order;
-
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	if (order > PAGE_ALLOC_COSTLY_ORDER) {
 		VM_BUG_ON(order != pageblock_order);
@@ -549,7 +547,7 @@ static inline unsigned int order_to_pind
 	VM_BUG_ON(order > PAGE_ALLOC_COSTLY_ORDER);
 #endif
 
-	return (MIGRATE_PCPTYPES * base) + migratetype;
+	return (MIGRATE_PCPTYPES * order) + migratetype;
 }
 
 static inline int pindex_to_order(unsigned int pindex)
_

Patches currently in -mm which might be from linmiaohe@huawei.com are

mm-swapfile-fix-wrong-swap-entry-type-for-hwpoisoned-swapcache-page.patch
mm-memory-failure-fix-potential-unexpected-return-value-from-unpoison_memory.patch
mm-memory-failure-avoid-false-hwpoison-page-mapped-error-info.patch
mm-mm_initc-update-obsolete-comment-in-get_pfn_range_for_nid.patch
mm-memory-failure-fix-unexpected-return-value-in-soft_offline_page.patch
mm-memory-failure-fix-potential-page-refcnt-leak-in-memory_failure.patch
mm-memory-failure-remove-unneeded-page-state-check-in-shake_page.patch
memory-tier-use-helper-function-destroy_memory_type.patch
mm-memory-failure-remove-unneeded-inline-annotation.patch
mm-mm_initc-remove-obsolete-macro-hash_small.patch
mm-page_alloc-avoid-false-page-outside-zone-error-info.patch
memory-tier-rename-destroy_memory_type-to-put_memory_type.patch
mm-remove-obsolete-comment-above-struct-per_cpu_pages.patch
mm-memcg-minor-cleanup-for-mem_cgroup_id_max.patch
mm-memory-failure-remove-unneeded-pagehuge-check.patch
mm-memory-failure-ensure-moving-hwpoison-flag-to-the-raw-error-pages.patch
mm-memory-failure-dont-account-hwpoison_filter-filtered-pages.patch
mm-memory-failure-use-local-variable-huge-to-check-hugetlb-page.patch
mm-memory-failure-remove-unneeded-header-files.patch
mm-memory-failure-minor-cleanup-for-comments-and-codestyle.patch
mm-memory-failure-fetch-compound-head-after-extra-page-refcnt-is-held.patch
mm-memory-failure-fix-race-window-when-trying-to-get-hugetlb-folio.patch
mm-huge_memory-use-rmap_none-when-calling-page_add_anon_rmap.patch
mm-memcg-fix-obsolete-comment-above-mem_cgroup_max_reclaim_loops.patch
mm-memcg-minor-cleanup-for-mc_handle_present_pte.patch
memory-tier-use-helper-macro-__attr_rw.patch
mm-fix-obsolete-function-name-above-debug_pagealloc_enabled_static.patch
mm-mprotect-fix-obsolete-function-name-in-change_pte_range.patch
mm-memcg-fix-obsolete-function-name-in-mem_cgroup_protection.patch
mm-memory-failure-add-pageoffline-check.patch
mm-page_alloc-avoid-unneeded-alike_pages-calculation.patch
mm-memcg-update-obsolete-comment-above-parent_mem_cgroup.patch
mm-page_alloc-remove-unneeded-variable-base.patch