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Subject[RFC v2 4/5] mpage: use folios in bio end_io handler
Date
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.

Signed-off-by: Pankaj Raghav <p.raghav@samsung.com>
---
fs/mpage.c | 34 ++++++++++++++++++++++------------
1 file changed, 22 insertions(+), 12 deletions(-)

diff --git a/fs/mpage.c b/fs/mpage.c
index 3a545bf0f184..103505551896 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -45,13 +45,15 @@
*/
static void mpage_read_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) {
- struct page *page = bv->bv_page;
- page_endio(page, REQ_OP_READ,
- blk_status_to_errno(bio->bi_status));
+ bio_for_each_folio_all(fi, bio) {
+ struct folio *folio = fi.folio;
+
+ if (!err)
+ folio_mark_uptodate(folio);
+ folio_unlock(folio);
}

bio_put(bio);
@@ -59,13 +61,21 @@ static void mpage_read_end_io(struct bio *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) {
- struct page *page = bv->bv_page;
- page_endio(page, REQ_OP_WRITE,
- blk_status_to_errno(bio->bi_status));
+ bio_for_each_folio_all(fi, bio) {
+ struct folio *folio = fi.folio;
+
+ if (err) {
+ struct address_space *mapping;
+
+ folio_set_error(folio);
+ mapping = folio_mapping(folio);
+ if (mapping)
+ mapping_set_error(mapping, err);
+ }
+ folio_end_writeback(folio);
}

bio_put(bio);
--
2.34.1
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