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memcg: convert get_obj_cgroup_from_page to get_obj_cgroup_from_folio

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As the one caller now has a folio, pass it in and use it.  Removes three
calls to compound_head().

Link: https://lkml.kernel.org/r/20230715042343.434588-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Domenico Cerasuolo <cerasuolodomenico@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Yosry Ahmed <yosryahmed@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle)
2023-07-15 05:23:41 +01:00
committed by Andrew Morton
parent 34f4c198bf
commit 074e3e262a
3 changed files with 7 additions and 7 deletions
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4
include/linux/memcontrol.h
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@@ -1759,7 +1759,7 @@ int __memcg_kmem_charge_page(struct page *page, gfp_t gfp, int order);
void __memcg_kmem_uncharge_page(struct page *page, int order);
struct obj_cgroup *get_obj_cgroup_from_current(void);
struct obj_cgroup *get_obj_cgroup_from_page(struct page *page);
struct obj_cgroup *get_obj_cgroup_from_folio(struct folio *folio);
int obj_cgroup_charge(struct obj_cgroup *objcg, gfp_t gfp, size_t size);
void obj_cgroup_uncharge(struct obj_cgroup *objcg, size_t size);
@@ -1843,7 +1843,7 @@ static inline void __memcg_kmem_uncharge_page(struct page *page, int order)
{
}
static inline struct obj_cgroup *get_obj_cgroup_from_page(struct page *page)
static inline struct obj_cgroup *get_obj_cgroup_from_folio(struct folio *folio)
{
return NULL;
}