[PATCH v2 2/2] fuse: use iomap helper to mark folio uptodate

[Joanne Koong <joannelkoong@gmail.com>]

When fuse enables large folios, a large folio will be backed by
iomap_folio_state that keeps track of uptodate and dirty state in an
internal bitmap.

Fuse writethrough and notify store paths currently set folio uptodate
state with folio_mark_uptodate(), which touches only the folio-level
flag, but on an iomap-backed folio, that leaves the uptodate bitmap out
of sync.

Use the iomap_folio_mark_uptodate() helper to update both the folio
uptodate state and the iomap uptodate bitmap.

Signed-off-by: Joanne Koong <joannelkoong@gmail.com>
---
 fs/fuse/file.c   | 2 +-
 fs/fuse/notify.c | 4 +++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index e052a0d44dee..26f27e113e9c 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1335,7 +1335,7 @@ static ssize_t fuse_fill_write_pages(struct fuse_io_args *ia,
 
 		/* If we copied full folio, mark it uptodate */
 		if (tmp == folio_size(folio))
-			folio_mark_uptodate(folio);
+			iomap_folio_mark_uptodate(folio);
 
 		if (folio_test_uptodate(folio)) {
 			folio_unlock(folio);
diff --git a/fs/fuse/notify.c b/fs/fuse/notify.c
index 29578104ae6c..1ba763705d91 100644
--- a/fs/fuse/notify.c
+++ b/fs/fuse/notify.c
@@ -2,6 +2,8 @@
 
 #include "dev.h"
 #include "fuse_i.h"
+
+#include <linux/iomap.h>
 #include <linux/pagemap.h>
 
 static int fuse_notify_poll(struct fuse_conn *fc, unsigned int size,
@@ -192,7 +194,7 @@ static int fuse_notify_store(struct fuse_conn *fc, unsigned int size,
 		if (!folio_test_uptodate(folio) && !err && folio_offset == 0 &&
 		    (nr_bytes == folio_size(folio) || file_size == end)) {
 			folio_zero_segment(folio, nr_bytes, folio_size(folio));
-			folio_mark_uptodate(folio);
+			iomap_folio_mark_uptodate(folio);
 		}
 		folio_unlock(folio);
 		folio_put(folio);
-- 
2.52.0