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mm,jfs: move write_one_page/folio_write_one to jfs

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The last remaining user of folio_write_one through the write_one_page
wrapper is jfs, so move the functionality there and hard code the
call to metapage_writepage.

Note that the use of the pagecache by the JFS 'metapage' buffer cache
is a bit odd, and we could probably do without VM-level dirty tracking
at all, but that's a change for another time.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Christoph Hellwig
2023-03-07 15:31:25 +01:00
committed by Al Viro
parent 8e4bfd1364
commit 2d68317582
3 changed files with 34 additions and 51 deletions
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6
include/linux/pagemap.h
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@@ -1066,12 +1066,6 @@ static inline void folio_cancel_dirty(struct folio *folio)
bool folio_clear_dirty_for_io(struct folio *folio);
bool clear_page_dirty_for_io(struct page *page);
void folio_invalidate(struct folio *folio, size_t offset, size_t length);
int __must_check folio_write_one(struct folio *folio);
static inline int __must_check write_one_page(struct page *page)
{
return folio_write_one(page_folio(page));
}
int __set_page_dirty_nobuffers(struct page *page);
bool noop_dirty_folio(struct address_space *mapping, struct folio *folio);