When we're doing writethrough, we don't have a writeback_control to
pass in.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
fs/iomap/buffered-io.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 85bcdb0dc66c..024e16fb95a8 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -1232,9 +1232,13 @@ static struct iomap_ioend *iomap_alloc_ioend(struct inode *inode,
bio = bio_alloc_bioset(GFP_NOFS, BIO_MAX_VECS, &iomap_ioend_bioset);
bio_set_dev(bio, iomap->bdev);
bio->bi_iter.bi_sector = sector;
- bio->bi_opf = REQ_OP_WRITE | wbc_to_write_flags(wbc);
+ bio->bi_opf = REQ_OP_WRITE;
bio->bi_write_hint = inode->i_write_hint;
- wbc_init_bio(wbc, bio);
+
+ if (wbc) {
+ bio->bi_opf |= wbc_to_write_flags(wbc);
+ wbc_init_bio(wbc, bio);
+ }
ioend = container_of(bio, struct iomap_ioend, io_inline_bio);
INIT_LIST_HEAD(&ioend->io_list);
--
2.34.1
