Re: [PATCH 1/1] mm/migrate: de-duplicate migrate_reason strings

[John Hubbard]

On 9/21/21 22:53, Weizhao Ouyang wrote:
> On 2021/9/22 12:17, John Hubbard wrote:
> > In order to remove the need to manually keep three different files in
> > synch, provide a common definition of the mapping between enum
> > migrate_reason, and the associated strings for each enum item.
> >
> > 1. Use the tracing system's mapping of enums to strings, by redefining
> > and reusing the MIGRATE_REASON and supporting macros, and using that to
> > populate the string array in mm/debug.c.
> >
> > 2. Move enum migrate_reason to migrate_mode.h. This is not strictly
> > necessary for this patch, but migrate mode and migrate reason go
> > together, so this will slightly clarify things.
> >
> > Cc: Weizhao Ouyang <o451686892@xxxxxxxxx>
> > Cc: "Huang, Ying" <ying.huang@xxxxxxxxx>
> > Signed-off-by: John Hubbard <jhubbard@xxxxxxxxxx>
> > ---
> >   include/linux/migrate.h      | 19 +------------------
> >   include/linux/migrate_mode.h | 13 +++++++++++++
> >   mm/debug.c                   | 20 +++++++++++---------
> >   3 files changed, 25 insertions(+), 27 deletions(-)
>
> LGTM.
> And, maybe rename the migrate_mode.h?

I thought about this, and after failing to dream up a better
filename, just figured I'd leave it alone. But I'm open to suggestion
there. And it is easy to change, since it's only included from two
places.

> Reviewed-by: Weizhao Ouyang <o451686892@xxxxxxxxx>

Thanks for the review!


thanks,
--
John Hubbard
NVIDIA