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mm: pass a folio to swap_writepage_bdev_sync()

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Saves a call to compound_head().

Link: https://lkml.kernel.org/r/20231213215842.671461-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2023-12-13 21:58:33 +00:00 committed by Andrew Morton
parent bfcd44d5f8
commit 6de62c7bc4
1 changed files with 4 additions and 5 deletions
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9
mm/page_io.c
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@ -326,17 +326,16 @@ static void swap_writepage_fs(struct folio *folio, struct writeback_control *wbc
*wbc->swap_plug = sio;
}
static void swap_writepage_bdev_sync(struct page *page,
static void swap_writepage_bdev_sync(struct folio *folio,
struct writeback_control *wbc, struct swap_info_struct *sis)
{
struct bio_vec bv;
struct bio bio;
struct folio *folio = page_folio(page);
bio_init(&bio, sis->bdev, &bv, 1,
REQ_OP_WRITE | REQ_SWAP | wbc_to_write_flags(wbc));
bio.bi_iter.bi_sector = swap_page_sector(page);
__bio_add_page(&bio, page, thp_size(page), 0);
bio.bi_iter.bi_sector = swap_page_sector(&folio->page);
bio_add_folio_nofail(&bio, folio, folio_size(folio), 0);
bio_associate_blkg_from_page(&bio, folio);
count_swpout_vm_event(folio);
@ -381,7 +380,7 @@ void __swap_writepage(struct folio *folio, struct writeback_control *wbc)
if (data_race(sis->flags & SWP_FS_OPS))
swap_writepage_fs(folio, wbc);
else if (sis->flags & SWP_SYNCHRONOUS_IO)
swap_writepage_bdev_sync(&folio->page, wbc, sis);
swap_writepage_bdev_sync(folio, wbc, sis);
else
swap_writepage_bdev_async(&folio->page, wbc, sis);
}