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SubjectRe: [PATCH] mm: memcontrol: Use int for event/state parameter in several functions
On Fri, Jul 28, 2017 at 11:23:54AM -0700, Matthias Kaehlcke wrote:
> El Thu, Jul 27, 2017 at 02:10:04PM -0700 Matthias Kaehlcke ha dit:
> > Several functions use an enum type as parameter for an event/state,
> > but are called in some locations with an argument of a different enum
> > type. Adjust the interface of these functions to reality by changing the
> > parameter to int.
> >
> > This fixes a ton of enum-conversion warnings that are generated when
> > building the kernel with clang.

Thanks for fixing this, Matthias.

Acked-by: Johannes Weiner <>

> While building for another target with a different configuration I
> noticed that inc/dec/mod_memcg_page_state() are also called with a
> conflicting enum type. Changing the parameter type for these functions
> also would make the API more consistent, with the current patch there
> is a somewhat odd mix of related functions, with some receiving an
> enum and others an int.
> Depending on your preference I can send a v3 of this patch or a
> separate patch to address the remaining functions (since this patch
> has already been added to -mm).

Since it's the exact same rationale for the other functions, it would
make sense to me to do a v3 that includes the remaining sites.

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