mpage: use folios in bio end_io handler

Use folios in the bio end_io handler.  This conversion does the
appropriate handling on the folios in the respective end_io callback and
removes the call to page_endio(), which is soon to be removed.

Link: https://lkml.kernel.org/r/20230411122920.30134-4-p.raghav@samsung.com
Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <brauner@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Martin Brandenburg <martin@omnibond.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Mike Marshall <hubcap@omnibond.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/fs/mpage.c b/fs/mpage.c
index d9540c1..242e213 100644 (file)
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -45,24 +45,32 @@
  */
 static void mpage_read_end_io(struct bio *bio)
 {
-       struct bio_vec *bv;
-       struct bvec_iter_all iter_all;
-
-       bio_for_each_segment_all(bv, bio, iter_all)
-               page_endio(bv->bv_page, REQ_OP_READ,
-                          blk_status_to_errno(bio->bi_status));
+       struct folio_iter fi;
+       int err = blk_status_to_errno(bio->bi_status);
+
+       bio_for_each_folio_all(fi, bio) {
+               if (err)
+                       folio_set_error(fi.folio);
+               else
+                       folio_mark_uptodate(fi.folio);
+               folio_unlock(fi.folio);
+       }
 
        bio_put(bio);
 }
 
 static void mpage_write_end_io(struct bio *bio)
 {
-       struct bio_vec *bv;
-       struct bvec_iter_all iter_all;
+       struct folio_iter fi;
+       int err = blk_status_to_errno(bio->bi_status);
 
-       bio_for_each_segment_all(bv, bio, iter_all)
-               page_endio(bv->bv_page, REQ_OP_WRITE,
-                          blk_status_to_errno(bio->bi_status));
+       bio_for_each_folio_all(fi, bio) {
+               if (err) {
+                       folio_set_error(fi.folio);
+                       mapping_set_error(fi.folio->mapping, err);
+               }
+               folio_end_writeback(fi.folio);
+       }
 
        bio_put(bio);
 }