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mm/page_io: convert bio_associate_blkg_from_page() to take in a folio

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Convert bio_associate_blkg_from_page() to take in a folio. We can remove
two implicit calls to compound_head() by taking in a folio.

Link: https://lkml.kernel.org/r/20230721034451.16412-11-zhangpeng362@huawei.com
Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
ZhangPeng 2023-07-21 11:44:51 +08:00 committed by Andrew Morton
parent 9b72b134ee
commit 98630cfdc4
1 changed files with 5 additions and 5 deletions
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10
mm/page_io.c
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@ -215,12 +215,12 @@ static inline void count_swpout_vm_event(struct folio *folio)
}
#if defined(CONFIG_MEMCG) && defined(CONFIG_BLK_CGROUP)
static void bio_associate_blkg_from_page(struct bio *bio, struct page *page)
static void bio_associate_blkg_from_page(struct bio *bio, struct folio *folio)
{
struct cgroup_subsys_state *css;
struct mem_cgroup *memcg;
memcg = page_memcg(page);
memcg = folio_memcg(folio);
if (!memcg)
return;
@ -230,7 +230,7 @@ static void bio_associate_blkg_from_page(struct bio *bio, struct page *page)
rcu_read_unlock();
}
#else
#define bio_associate_blkg_from_page(bio, page) do { } while (0)
#define bio_associate_blkg_from_page(bio, folio) do { } while (0)
#endif /* CONFIG_MEMCG && CONFIG_BLK_CGROUP */
struct swap_iocb {
@ -338,7 +338,7 @@ static void swap_writepage_bdev_sync(struct page *page,
bio.bi_iter.bi_sector = swap_page_sector(page);
__bio_add_page(&bio, page, thp_size(page), 0);
bio_associate_blkg_from_page(&bio, page);
bio_associate_blkg_from_page(&bio, folio);
count_swpout_vm_event(folio);
folio_start_writeback(folio);
@ -361,7 +361,7 @@ static void swap_writepage_bdev_async(struct page *page,
bio->bi_end_io = end_swap_bio_write;
__bio_add_page(bio, page, thp_size(page), 0);
bio_associate_blkg_from_page(bio, page);
bio_associate_blkg_from_page(bio, folio);
count_swpout_vm_event(folio);
folio_start_writeback(folio);
folio_unlock(folio);