diff options
| author | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-05-01 20:42:23 -0400 |
|---|---|---|
| committer | Matthew Wilcox (Oracle) <willy@infradead.org> | 2021-09-27 09:27:31 -0400 |
| commit | bbc6b703b21963e909f633cf7718903ed5094319 (patch) | |
| tree | 076d76592401f7c5343053c9eaf7ed51e5a8251c /include/linux/memcontrol.h | |
| parent | c4ed6ebfcb0929d204ab7548496c0d28bd408b36 (diff) | |
| download | lwn-bbc6b703b21963e909f633cf7718903ed5094319.tar.gz lwn-bbc6b703b21963e909f633cf7718903ed5094319.zip | |
mm/memcg: Convert mem_cgroup_uncharge() to take a folio
Convert all the callers to call page_folio(). Most of them were already
using a head page, but a few of them I can't prove were, so this may
actually fix a bug.
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>
Diffstat (limited to 'include/linux/memcontrol.h')
| -rw-r--r-- | include/linux/memcontrol.h | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h index 19a51729e00c..b4bc052db32b 100644 --- a/include/linux/memcontrol.h +++ b/include/linux/memcontrol.h @@ -722,12 +722,19 @@ int mem_cgroup_swapin_charge_page(struct page *page, struct mm_struct *mm, gfp_t gfp, swp_entry_t entry); void mem_cgroup_swapin_uncharge_swap(swp_entry_t entry); -void __mem_cgroup_uncharge(struct page *page); -static inline void mem_cgroup_uncharge(struct page *page) +void __mem_cgroup_uncharge(struct folio *folio); + +/** + * mem_cgroup_uncharge - Uncharge a folio. + * @folio: Folio to uncharge. + * + * Uncharge a folio previously charged with mem_cgroup_charge(). + */ +static inline void mem_cgroup_uncharge(struct folio *folio) { if (mem_cgroup_disabled()) return; - __mem_cgroup_uncharge(page); + __mem_cgroup_uncharge(folio); } void __mem_cgroup_uncharge_list(struct list_head *page_list); @@ -1229,7 +1236,7 @@ static inline void mem_cgroup_swapin_uncharge_swap(swp_entry_t entry) { } -static inline void mem_cgroup_uncharge(struct page *page) +static inline void mem_cgroup_uncharge(struct folio *folio) { } |