[PATCH 0/2 v2] VFS: minor improvements to a couple of interfaces

[NeilBrown <neilb@xxxxxxx>]

Hi,
 please replace the top two patches in vfs/vfs-6.15.async.dir
with these two revised versions.

Both add text to filesytems/porting.rst

The first moves an 'err = 0' as was requested if any refresh is needed.
The second adds a check for errors from ->lookup.  This omission is
triggering various error reports.

Thanks,
NeilBrown

 [PATCH 1/2] VFS: change kern_path_locked() and user_path_locked_at()
 [PATCH 2/2] VFS: add common error checks to lookup_one_qstr_excl()