From: Mike Marshall <hubcap@omnibond.com>
Date: Tue, 5 Feb 2019 19:13:35 +0000 (-0500)
Subject: aio: initialize kiocb private in case any filesystems expect it.
X-Git-Tag: archive/raspbian/5.2.17-1+rpi1^2^2^2^2~96
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=1c2f3c146f2699a99a235c4ebd7be4fa0f09c164;p=linux.git

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 f6ce01ca690..d74fc9e112a 100644
--- 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)