[PATCH 1/2] mm: Export the alloc_demote_page() function
From: Baolin Wang <baolin.wang@linux.alibaba.com>
Date: 2021-12-21 09:18:36
Also in:
lkml
Subsystem:
memory management, memory management - core, memory management - mglru (multi-gen lru), memory management - reclaim, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Johannes Weiner, Linus Torvalds
Export the alloc_demote_page() function to the head file as a preparation to support page demotion for DAMON monitor. Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com> --- mm/internal.h | 1 + mm/vmscan.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/mm/internal.h b/mm/internal.h
index deb9bda..99ea5fb 100644
--- a/mm/internal.h
+++ b/mm/internal.h@@ -181,6 +181,7 @@ static inline void set_page_refcounted(struct page *page) extern int isolate_lru_page(struct page *page); extern void putback_lru_page(struct page *page); extern void reclaim_throttle(pg_data_t *pgdat, enum vmscan_throttle_state reason); +extern struct page *alloc_demote_page(struct page *page, unsigned long node); /* * in mm/rmap.c:
diff --git a/mm/vmscan.c b/mm/vmscan.c
index f3162a5..bf38327 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c@@ -1458,7 +1458,7 @@ static void page_check_dirty_writeback(struct page *page, mapping->a_ops->is_dirty_writeback(page, dirty, writeback); } -static struct page *alloc_demote_page(struct page *page, unsigned long node) +struct page *alloc_demote_page(struct page *page, unsigned long node) { struct migration_target_control mtc = { /*
--
1.8.3.1