[PATCH] ext4: flag as supporting buffered async reads

[Jens Axboe]

ext4 uses generic_file_read_iter(), which already supports this.

Cc: Theodore Ts'o <ty...@mit.edu>
Signed-off-by: Jens Axboe <ax...@kernel.dk>

---

Resending this one, as I've been carrying it privately since May. The
necessary bits are now upstream (and XFS/btrfs equiv changes as well),
please consider this one for 5.9. Thanks!

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 2a01e31a032c..1e827410e9e1 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -839,7 +839,7 @@ static int ext4_file_open(struct inode * inode, struct file 
* filp)
                        return ret;
        }
 
-       filp->f_mode |= FMODE_NOWAIT;
+       filp->f_mode |= FMODE_NOWAIT | FMODE_BUF_RASYNC;
        return dquot_file_open(inode, filp);
 }
 
-- 
Jens Axboe