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mm/memcg: Add folio_lruvec()

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This replaces mem_cgroup_page_lruvec().  All callers converted.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Matthew Wilcox (Oracle) 2021-06-28 20:00:28 -04:00
parent fcce4672c0
commit b1baabd995
5 changed files with 20 additions and 17 deletions
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20
include/linux/memcontrol.h
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@ -784,18 +784,17 @@ out:
}
/**
* mem_cgroup_page_lruvec - return lruvec for isolating/putting an LRU page
* @page: the page
* folio_lruvec - return lruvec for isolating/putting an LRU folio
* @folio: Pointer to the folio.
*
* This function relies on page->mem_cgroup being stable.
* This function relies on folio->mem_cgroup being stable.
*/
static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page)
static inline struct lruvec *folio_lruvec(struct folio *folio)
{
pg_data_t *pgdat = page_pgdat(page);
struct mem_cgroup *memcg = page_memcg(page);
struct mem_cgroup *memcg = folio_memcg(folio);
VM_WARN_ON_ONCE_PAGE(!memcg && !mem_cgroup_disabled(), page);
return mem_cgroup_lruvec(memcg, pgdat);
VM_WARN_ON_ONCE_FOLIO(!memcg && !mem_cgroup_disabled(), folio);
return mem_cgroup_lruvec(memcg, folio_pgdat(folio));
}
struct mem_cgroup *mem_cgroup_from_task(struct task_struct *p);
@ -1256,10 +1255,9 @@ static inline struct lruvec *mem_cgroup_lruvec(struct mem_cgroup *memcg,
return &pgdat->__lruvec;
}
static inline struct lruvec *mem_cgroup_page_lruvec(struct page *page)
static inline struct lruvec *folio_lruvec(struct folio *folio)
{
pg_data_t *pgdat = page_pgdat(page);
struct pglist_data *pgdat = folio_pgdat(folio);
return &pgdat->__lruvec;
}