This is a note to let you know that I've just added the patch titled

ovl: update ctx->pos on impure dir iteration

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: ovl-update-ctx-pos-on-impure-dir-iteration.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From b02a16e6413a2f782e542ef60bad9ff6bf212f8a Mon Sep 17 00:00:00 2001

From: Amir Goldstein amir73il@gmail.com Date: Wed, 29 Nov 2017 07:35:21 +0200 Subject: ovl: update ctx->pos on impure dir iteration

From: Amir Goldstein amir73il@gmail.com

commit b02a16e6413a2f782e542ef60bad9ff6bf212f8a upstream.

This fixes a regression with readdir of impure dir in overlayfs that is shared to VM via 9p fs.

Reported-by: Miguel Bernal Marin miguel.bernal.marin@linux.intel.com Fixes: 4edb83bb1041 ("ovl: constant d_ino for non-merge dirs") Signed-off-by: Amir Goldstein amir73il@gmail.com Tested-by: Miguel Bernal Marin miguel.bernal.marin@linux.intel.com Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- fs/overlayfs/readdir.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

--- a/fs/overlayfs/readdir.c +++ b/fs/overlayfs/readdir.c @@ -645,7 +645,10 @@ static int ovl_iterate_real(struct file return PTR_ERR(rdt.cache); }

- return iterate_dir(od->realfile, &rdt.ctx); + err = iterate_dir(od->realfile, &rdt.ctx); + ctx->pos = rdt.ctx.pos; + + return err; }

Patches currently in stable-queue which might be from amir73il@gmail.com are

queue-4.14/ovl-pass-ovl_get_nlink-parameters-in-right-order.patch queue-4.14/ovl-update-ctx-pos-on-impure-dir-iteration.patch