aio: initialize kiocb private in case any filesystems expect it.

commit ec51f8ee1e63498e9f521ec0e5a6d04622bb2c67 upstream.

A recent optimization had left private uninitialized.

Fixes: 2bc4ca9bb600 ("aio: don't zero entire aio_kiocb aio_get_req()")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Gbp-Pq: Topic bugfix/all
Gbp-Pq: Name 0008-aio-initialize-kiocb-private-in-case-any-filesystems.patch

diff --git a/fs/aio.c b/fs/aio.c
index f6ce01ca6903dace0595294d34077f18cd74eae1..d74fc9e112acc1f5fac372a2bd938a83e7069d8d 100644 (file)
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -1430,6 +1430,7 @@ static int aio_prep_rw(struct kiocb *req, const struct iocb *iocb)
        if (unlikely(!req->ki_filp))
                return -EBADF;
        req->ki_complete = aio_complete_rw;
+       req->private = NULL;
        req->ki_pos = iocb->aio_offset;
        req->ki_flags = iocb_flags(req->ki_filp);
        if (iocb->aio_flags & IOCB_FLAG_RESFD)