On Mon, Aug 17, 2020 at 09:56:02PM +0200, Andreas Grünbacher wrote:
Gerg,
Am Mo., 17. Aug. 2020 um 21:39 Uhr schrieb Greg Kroah-Hartman gregkh@linuxfoundation.org:
From: Andreas Gruenbacher agruenba@redhat.com
[ Upstream commit 856473cd5d17dbbf3055710857c67a4af6d9fcc0 ]
Make sure iomap_end is always called when iomap_begin succeeds.
Without this fix, iomap_end won't be called when a filesystem's iomap_begin operation returns an invalid mapping, bypassing any unlocking done in iomap_end. With this fix, the unlocking will still happen.
This bug was found by Bob Peterson during code review. It's unlikely that such iomap_begin bugs will survive to affect users, so backporting this fix seems unnecessary.
this doesn't need to be backported.
Now dropped, thanks!