The patch titled
Subject: mm/page_io: convert bio_associate_blkg_from_page() to take in a folio
has been added to the -mm mm-unstable branch. Its filename is
mm-page_io-convert-bio_associate_blkg_from_page-to-take-in-a-folio.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-page_io-convert-bio_associate_blkg_from_page-to-take-in-a-folio.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: ZhangPeng <zhangpeng362@xxxxxxxxxx>
Subject: mm/page_io: convert bio_associate_blkg_from_page() to take in a folio
Date: Fri, 21 Jul 2023 11:44:51 +0800
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@xxxxxxxxxx
Signed-off-by: ZhangPeng <zhangpeng362@xxxxxxxxxx>
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Cc: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Nanyong Sun <sunnanyong@xxxxxxxxxx>
Cc: Sidhartha Kumar <sidhartha.kumar@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/page_io.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
--- a/mm/page_io.c~mm-page_io-convert-bio_associate_blkg_from_page-to-take-in-a-folio
+++ a/mm/page_io.c
@@ -215,12 +215,12 @@ static inline void count_swpout_vm_event
}
#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
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(str
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(st
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);
_
Patches currently in -mm which might be from zhangpeng362@xxxxxxxxxx are
mm-use-a-folio-in-fault_dirty_shared_page.patch
mm-remove-page_rmapping.patch
mm-page_io-remove-unneeded-clearpageuptodate.patch
mm-page_io-remove-unneeded-setpageerror.patch
mm-page_io-introduce-bio_first_folio_all.patch
mm-page_io-use-a-folio-in-__end_swap_bio_write.patch
mm-page_io-use-a-folio-in-__end_swap_bio_read.patch
mm-page_io-use-a-folio-in-sio_read_complete.patch
mm-page_io-use-a-folio-in-swap_writepage_bdev_sync.patch
mm-page_io-use-a-folio-in-swap_writepage_bdev_async.patch
mm-page_io-convert-count_swpout_vm_event-to-take-in-a-folio.patch
mm-page_io-convert-bio_associate_blkg_from_page-to-take-in-a-folio.patch
