Re: [PATCH v2 2/3] mm/mglru: add tracepoint for scan_folios()

[Steven Rostedt]

On Wed, 16 Sep 2026 10:14:31 +0800
Baoquan He <baoquan.he@xxxxxxxxx> wrote:

> > However, 'sc' is an internal structure, so sc->order cannot be accessed in
> > TP_fast_assign(), and I don't think it is worth making scan_control an
> > external structure just for this.  
> 
> Agree.

Or what you can do is to move include/trace/events/vmscan.h to
mm/trace_mm.h (or whatever you want to call it) and struct scan_control
into "vmscan.h" and then you can use internal structures within the
trace event.

Up to you, but this is what other subsystems have done.

-- Steve