mm/vmscan.c: use add_page_to_lru_list()

Patch series "mm: lru related cleanups", v2.

The cleanups are intended to reduce the verbosity in lru list operations
and make them less error-prone.  A typical example would be how the
patches change __activate_page():

 static void __activate_page(struct page *page, struct lruvec *lruvec)
 {
 	if (!PageActive(page) && !PageUnevictable(page)) {
-		int lru = page_lru_base_type(page);
 		int nr_pages = thp_nr_pages(page);

-		del_page_from_lru_list(page, lruvec, lru);
+		del_page_from_lru_list(page, lruvec);
 		SetPageActive(page);
-		lru += LRU_ACTIVE;
-		add_page_to_lru_list(page, lruvec, lru);
+		add_page_to_lru_list(page, lruvec);
 		trace_mm_lru_activate(page);

There are a few more places like __activate_page() and they are
unnecessarily repetitive in terms of figuring out which list a page should
be added onto or deleted from.  And with the duplicated code removed, they
are easier to read, IMO.

Patch 1 to 5 basically cover the above.  Patch 6 and 7 make code more
robust by improving bug reporting.  Patch 8, 9 and 10 take care of some
dangling helpers left in header files.

This patch (of 10):

There is add_page_to_lru_list(), and move_pages_to_lru() should reuse it,
not duplicate it.

Link: https://lkml.kernel.org/r/[email protected]
Link: https://lore.kernel.org/linux-mm/[email protected]/
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Yu Zhao <[email protected]>
Reviewed-by: Alex Shi <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Reviewed-by: Miaohe Lin <[email protected]>
Cc: Hugh Dickins <[email protected]>
Cc: Michal Hocko <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Cc: Roman Gushchin <[email protected]>
Cc: Matthew Wilcox <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions