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mm/memcg: Convert mem_cgroup_migrate() to take folios

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Convert all callers of mem_cgroup_migrate() to call page_folio() first.
They all look like they're using head pages already, but this proves it.

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) 2021-05-06 18:14:59 -04:00
parent bbc6b703b2
commit d21bba2b7d
5 changed files with 29 additions and 23 deletions
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4
include/linux/memcontrol.h
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@ -745,7 +745,7 @@ static inline void mem_cgroup_uncharge_list(struct list_head *page_list)
__mem_cgroup_uncharge_list(page_list);
}
void mem_cgroup_migrate(struct page *oldpage, struct page *newpage);
void mem_cgroup_migrate(struct folio *old, struct folio *new);
/**
* mem_cgroup_lruvec - get the lru list vector for a memcg & node
@ -1244,7 +1244,7 @@ static inline void mem_cgroup_uncharge_list(struct list_head *page_list)
{
}
static inline void mem_cgroup_migrate(struct page *old, struct page *new)
static inline void mem_cgroup_migrate(struct folio *old, struct folio *new)
{
}