Re: [PATCH v3 0/3] mm, vsprintf: introduce new format to dump full information of page flags

[Matthew Wilcox]

On Mon, Feb 08, 2021 at 06:14:36PM +0800, Yafang Shao wrote:
> To avoid breaking some tools which parsing pGp via debugfs or affecting
> the printf buffer, other new formats are introduced, so the user can choose
> what and in which order they want, suggested by Andy. These new introduced
> format as follows,
>     pGpb: print other information first and then the names of page flags
>     pGpl: print the names of page flags first and then the other info

This is overengineering things.  We already print in little-endian order,
and the other information should be tacked onto the end.  Just extend
%pGp.  Andy's suggestion to add another flag was a bad one.