2020-08-24 12:56:34

by Alex Shi

[permalink] [raw]
Subject: [PATCH v18 14/32] mm/lru: move lru_lock holding in func lru_note_cost_page

It's a clean up patch w/o function changes.

Signed-off-by: Alex Shi <[email protected]>
Reviewed-by: Alexander Duyck <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: [email protected]
Cc: [email protected]
---
mm/swap.c | 2 ++
mm/workingset.c | 2 --
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/swap.c b/mm/swap.c
index 4eea95a4286f..906255db6006 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -298,8 +298,10 @@ void lru_note_cost(struct lruvec *lruvec, bool file, unsigned int nr_pages)

void lru_note_cost_page(struct page *page)
{
+ spin_lock_irq(&page_pgdat(page)->lru_lock);
lru_note_cost(mem_cgroup_page_lruvec(page, page_pgdat(page)),
page_is_file_lru(page), thp_nr_pages(page));
+ spin_unlock_irq(&page_pgdat(page)->lru_lock);
}

static void __activate_page(struct page *page, struct lruvec *lruvec)
diff --git a/mm/workingset.c b/mm/workingset.c
index 92e66113a577..32e24cda1b4f 100644
--- a/mm/workingset.c
+++ b/mm/workingset.c
@@ -381,9 +381,7 @@ void workingset_refault(struct page *page, void *shadow)
if (workingset) {
SetPageWorkingset(page);
/* XXX: Move to lru_cache_add() when it supports new vs putback */
- spin_lock_irq(&page_pgdat(page)->lru_lock);
lru_note_cost_page(page);
- spin_unlock_irq(&page_pgdat(page)->lru_lock);
inc_lruvec_state(lruvec, WORKINGSET_RESTORE_BASE + file);
}
out:
--
1.8.3.1