[PATCH v9 3/8] iomap: Don't get an reference on ZERO_PAGE for direct I/O block zeroing
From: David Howells <dhowells@redhat.com>
Date: 2023-01-24 17:02:57
Also in:
linux-fsdevel, lkml
Subsystem:
filesystems (vfs and infrastructure), filesystems [iomap], the rest · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds
ZERO_PAGE can't go away, no need to hold an extra reference. Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: David Hildenbrand <redacted> --- 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); }