write in 30M

hc

2024-02-20 ea08eeccae9297f7aabd2ef7f0c2517ac4549acc

 kernel/include/linux/mm_inline.h
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@@ -4,21 +4,26 @@
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 #include <linux/huge_mm.h>
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 #include <linux/swap.h>
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+#ifndef __GENKSYMS__
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+#define PROTECT_TRACE_INCLUDE_PATH
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+#include <trace/hooks/mm.h>
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+#endif
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 /**
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- * page_is_file_cache - should the page be on a file LRU or anon LRU?
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+ * page_is_file_lru - should the page be on a file LRU or anon LRU?
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  * @page: the page to test
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  *
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- * Returns 1 if @page is page cache page backed by a regular filesystem,
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- * or 0 if @page is anonymous, tmpfs or otherwise ram or swap backed.
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- * Used by functions that manipulate the LRU lists, to sort a page
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- * onto the right LRU list.
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+ * Returns 1 if @page is a regular filesystem backed page cache page or a lazily
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+ * freed anonymous page (e.g. via MADV_FREE).  Returns 0 if @page is a normal
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+ * anonymous page, a tmpfs page or otherwise ram or swap backed page.  Used by
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+ * functions that manipulate the LRU lists, to sort a page onto the right LRU
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+ * list.
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  *
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  * We would like to get this info without a page flag, but the state
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  * needs to survive until the page is last deleted from the LRU, which
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  * could be as far down as __page_cache_release.
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  */
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-static inline int page_is_file_cache(struct page *page)
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+static inline int page_is_file_lru(struct page *page)
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 {
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 	return !PageSwapBacked(page);
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 }
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@@ -29,7 +34,7 @@
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 {
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 	struct pglist_data *pgdat = lruvec_pgdat(lruvec);
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-	__mod_node_page_state(pgdat, NR_LRU_BASE + lru, nr_pages);
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+	__mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages);
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 	__mod_zone_page_state(&pgdat->node_zones[zid],
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 				NR_ZONE_LRU_BASE + lru, nr_pages);
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 }
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@@ -47,22 +52,25 @@
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 static __always_inline void add_page_to_lru_list(struct page *page,
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 				struct lruvec *lruvec, enum lru_list lru)
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 {
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-	update_lru_size(lruvec, lru, page_zonenum(page), hpage_nr_pages(page));
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+	trace_android_vh_add_page_to_lrulist(page, false, lru);
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+	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
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 	list_add(&page->lru, &lruvec->lists[lru]);
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 }
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 static __always_inline void add_page_to_lru_list_tail(struct page *page,
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 				struct lruvec *lruvec, enum lru_list lru)
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 {
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-	update_lru_size(lruvec, lru, page_zonenum(page), hpage_nr_pages(page));
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+	trace_android_vh_add_page_to_lrulist(page, false, lru);
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+	update_lru_size(lruvec, lru, page_zonenum(page), thp_nr_pages(page));
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 	list_add_tail(&page->lru, &lruvec->lists[lru]);
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 }
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 static __always_inline void del_page_from_lru_list(struct page *page,
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 				struct lruvec *lruvec, enum lru_list lru)
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 {
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+	trace_android_vh_del_page_from_lrulist(page, false, lru);
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 	list_del(&page->lru);
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-	update_lru_size(lruvec, lru, page_zonenum(page), -hpage_nr_pages(page));
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+	update_lru_size(lruvec, lru, page_zonenum(page), -thp_nr_pages(page));
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 }
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 /**
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@@ -75,7 +83,7 @@
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  */
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 static inline enum lru_list page_lru_base_type(struct page *page)
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 {
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-	if (page_is_file_cache(page))
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+	if (page_is_file_lru(page))
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 		return LRU_INACTIVE_FILE;
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 	return LRU_INACTIVE_ANON;
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 }
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@@ -124,7 +132,4 @@
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 	}
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 	return lru;
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 }
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-
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-#define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
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-
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 #endif