[PATCH v14 12/17] iomap: Don't get an reference on ZERO_PAGE for direct I/O block zeroing
From: David Howells
Date: Tue Feb 14 2023 - 12:16:17 EST
ZERO_PAGE can't go away, no need to hold an extra reference.
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
Reviewed-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: John Hubbard <jhubbard@xxxxxxxxxx>
cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
cc: David Hildenbrand <david@xxxxxxxxxx>
cc: linux-fsdevel@xxxxxxxxxxxxxxx
---
fs/iomap/direct-io.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/iomap/direct-io.c b/fs/iomap/direct-io.c
index 9804714b1751..47db4ead1e74 100644
--- a/fs/iomap/direct-io.c
+++ b/fs/iomap/direct-io.c
@@ -202,7 +202,7 @@ static void iomap_dio_zero(const struct iomap_iter *iter, struct iomap_dio *dio,
bio->bi_private = dio;
bio->bi_end_io = iomap_dio_bio_end_io;
- get_page(page);
+ bio_set_flag(bio, BIO_NO_PAGE_REF);
__bio_add_page(bio, page, len, 0);
iomap_dio_submit_bio(iter, dio, bio, pos);
}