From: "Matthew Wilcox (Oracle)" All users except bh_offset() have been converted to use b_folio instead. Convert bh_offset() and remove b_page. Signed-off-by: Matthew Wilcox (Oracle) Signed-off-by: Chao Shi --- include/linux/buffer_head.h | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h index fd2c7115c054..699970b4bbf2 100644 --- a/include/linux/buffer_head.h +++ b/include/linux/buffer_head.h @@ -59,10 +59,7 @@ struct address_space; struct buffer_head { unsigned long b_state; /* buffer state bitmap (see above) */ struct buffer_head *b_this_page;/* circular list of page's buffers */ - union { - struct page *b_page; /* the page this bh is mapped to */ - struct folio *b_folio; /* the folio this bh is mapped to */ - }; + struct folio *b_folio; /* the folio this bh is mapped to */ sector_t b_blocknr; /* start block number */ size_t b_size; /* size of mapping */ @@ -172,7 +169,7 @@ static __always_inline int buffer_uptodate(const struct buffer_head *bh) static inline unsigned long bh_offset(const struct buffer_head *bh) { - return (unsigned long)(bh)->b_data & (page_size(bh->b_page) - 1); + return (unsigned long)(bh)->b_data & (folio_size(bh->b_folio) - 1); } /* If we *know* page->private refers to buffer_heads */ -- 2.43.0