Re: [PATCH] ext4: get rid of ppath in get_ext_path()

[Sasha Levin]

On Fri, Jul 03, 2026 at 10:20:35AM +0200, Greg KH wrote:
> On Fri, Jul 03, 2026 at 03:57:09PM +0800, Baokun Li wrote:
> > Either applying this fix patchset or reverting the incorrectly merged
> > commit should resolve the issue.
>
> How about submitting a revert so that we can start fresh and work from
> there?

I've queued upstream 6b854d552711 ("ext4: get rid of ppath in get_ext_path()")
for 6.6.y. It completes the partial series that went into 6.6.130 (which
stopped one patch short of it) and adds the IS_ERR_OR_NULL() checks to
ext4_free_ext_path() / ext4_ext_drop_refs(), resolving the reported oops. Yoann
Congal also posted a backport of the same commit yesterday.

Given that 6.6.y is nine patches into this series, completing it looked
less risky than unwinding all of them plus redoing the fixes on top.

Baokun, if the other two patches from yangerkun's April set
(ext4_force_split_extent_at() / convert_initialized_extent()) are still
needed on 6.6.y, I'm happy to take those as well.

-- 
Thanks,
Sasha