Re: [PATCH] ovl: add splice file read write helper

On Fri, Aug 20, 2021 at 07:59:29PM +0000, Leah Rumancik wrote:

From: Murphy Zhou jencce.kernel@gmail.com

Now overlayfs falls back to use default file splice read and write, which is not compatiple with overlayfs, returning EFAULT. xfstests generic/591 can reproduce part of this.

Tested this patch with xfstests auto group tests.

[ Needed in 5.4 to fix a deadlock triggered via xfstests overlay/019 -- Leah Rumancik ]

I've queued this up for 5.4, thanks Leah.