The patch titled
Subject: mm/thp: move lru_add_page_tail func to huge_memory.c
has been added to the -mm tree. Its filename is
mm-thp-move-lru_add_page_tail-func-to-huge_memoryc.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-thp-move-lru_add_page_tail-func-to-huge_memoryc.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-thp-move-lru_add_page_tail-func-to-huge_memoryc.patch
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------------------------------------------------------
From: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Subject: mm/thp: move lru_add_page_tail func to huge_memory.c
The func is only used in huge_memory.c, defining it in other file with a
CONFIG_TRANSPARENT_HUGEPAGE macro restrict just looks weird.
Let's move it close user.
Link: http://lkml.kernel.org/r/1583146830-169516-5-git-send-email-alex.shi@xxxxxxxxxxxxxxxxx
Signed-off-by: Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: Hugh Dickins <hughd@xxxxxxxxxx>
Cc: Mike Kravetz <kravetz@xxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Cc: Daniel Jordan <daniel.m.jordan@xxxxxxxxxx>
Cc: Kirill A. Shutemov <kirill@xxxxxxxxxxxxx>
Cc: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxxxxxx>
Cc: Michal Hocko <mhocko@xxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Cc: Yang Shi <yang.shi@xxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/swap.h | 4 ++--
mm/huge_memory.c | 35 +++++++++++++++++++++++++++++++++++
mm/swap.c | 41 +----------------------------------------
3 files changed, 38 insertions(+), 42 deletions(-)
--- a/include/linux/swap.h~mm-thp-move-lru_add_page_tail-func-to-huge_memoryc
+++ a/include/linux/swap.h
@@ -328,11 +328,11 @@ extern unsigned long nr_free_pagecache_p
/* linux/mm/swap.c */
+extern void update_page_reclaim_stat(struct lruvec *lruvec,
+ int file, int rotated);
extern void lru_cache_add(struct page *);
extern void lru_cache_add_anon(struct page *page);
extern void lru_cache_add_file(struct page *page);
-extern void lru_add_page_tail(struct page *page, struct page *page_tail,
- struct lruvec *lruvec, struct list_head *head);
extern void activate_page(struct page *);
extern void mark_page_accessed(struct page *);
extern void lru_add_drain(void);
--- a/mm/huge_memory.c~mm-thp-move-lru_add_page_tail-func-to-huge_memoryc
+++ a/mm/huge_memory.c
@@ -2462,6 +2462,41 @@ static void remap_page(struct page *page
}
}
+void lru_add_page_tail(struct page *page, struct page *page_tail,
+ struct lruvec *lruvec, struct list_head *list)
+{
+ const int file = 0;
+
+ VM_BUG_ON_PAGE(!PageHead(page), page);
+ VM_BUG_ON_PAGE(PageCompound(page_tail), page);
+ VM_BUG_ON_PAGE(PageLRU(page_tail), page);
+ lockdep_assert_held(&lruvec_pgdat(lruvec)->lru_lock);
+
+ if (!list)
+ SetPageLRU(page_tail);
+
+ if (likely(PageLRU(page)))
+ list_add_tail(&page_tail->lru, &page->lru);
+ else if (list) {
+ /* page reclaim is reclaiming a huge page */
+ get_page(page_tail);
+ list_add_tail(&page_tail->lru, list);
+ } else {
+ /*
+ * Head page has not yet been counted, as an hpage,
+ * so we must account for each subpage individually.
+ *
+ * Put page_tail on the list at the correct position
+ * so they all end up in order.
+ */
+ add_page_to_lru_list_tail(page_tail, lruvec,
+ page_lru(page_tail));
+ }
+
+ if (!PageUnevictable(page))
+ update_page_reclaim_stat(lruvec, file, PageActive(page_tail));
+}
+
static void __split_huge_page_tail(struct page *head, int tail,
struct lruvec *lruvec, struct list_head *list)
{
--- a/mm/swap.c~mm-thp-move-lru_add_page_tail-func-to-huge_memoryc
+++ a/mm/swap.c
@@ -262,8 +262,7 @@ void rotate_reclaimable_page(struct page
}
}
-static void update_page_reclaim_stat(struct lruvec *lruvec,
- int file, int rotated)
+void update_page_reclaim_stat(struct lruvec *lruvec, int file, int rotated)
{
struct zone_reclaim_stat *reclaim_stat = &lruvec->reclaim_stat;
@@ -886,44 +885,6 @@ void __pagevec_release(struct pagevec *p
}
EXPORT_SYMBOL(__pagevec_release);
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-/* used by __split_huge_page_refcount() */
-void lru_add_page_tail(struct page *page, struct page *page_tail,
- struct lruvec *lruvec, struct list_head *list)
-{
- const int file = 0;
-
- VM_BUG_ON_PAGE(!PageHead(page), page);
- VM_BUG_ON_PAGE(PageCompound(page_tail), page);
- VM_BUG_ON_PAGE(PageLRU(page_tail), page);
- lockdep_assert_held(&lruvec_pgdat(lruvec)->lru_lock);
-
- if (!list)
- SetPageLRU(page_tail);
-
- if (likely(PageLRU(page)))
- list_add_tail(&page_tail->lru, &page->lru);
- else if (list) {
- /* page reclaim is reclaiming a huge page */
- get_page(page_tail);
- list_add_tail(&page_tail->lru, list);
- } else {
- /*
- * Head page has not yet been counted, as an hpage,
- * so we must account for each subpage individually.
- *
- * Put page_tail on the list at the correct position
- * so they all end up in order.
- */
- add_page_to_lru_list_tail(page_tail, lruvec,
- page_lru(page_tail));
- }
-
- if (!PageUnevictable(page))
- update_page_reclaim_stat(lruvec, file, PageActive(page_tail));
-}
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
-
static void __pagevec_lru_add_fn(struct page *page, struct lruvec *lruvec,
void *arg)
{
_
Patches currently in -mm which might be from alex.shi@xxxxxxxxxxxxxxxxx are
ocfs2-remove-fs_ocfs2_nm.patch
ocfs2-remove-unused-macros.patch
ocfs2-use-ocfs2_sec_bits-in-macro.patch
ocfs2-remove-dlm_lock_is_remote.patch
ocfs2-remove-useless-err.patch
mm-vmscan-remove-unnecessary-lruvec-adding.patch
mm-memcg-fold-lock_page_lru-into-commit_charge.patch
mm-page_idle-no-unlikely-double-check-for-idle-page-counting.patch
mm-thp-move-lru_add_page_tail-func-to-huge_memoryc.patch
mm-thp-clean-up-lru_add_page_tail.patch
mm-thp-narrow-lru-locking.patch
