linux-kernel - Re: [PATCH] mm, vmscan, tracing: Use pointer to reclaim

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Message-ID: <20180323135225.GV23100@dhcp22.suse.cz>
Date:   Fri, 23 Mar 2018 14:52:25 +0100
From:   Michal Hocko <mhocko@...nel.org>
To:     Steven Rostedt <rostedt@...dmis.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, linux-mm@...ck.org,
        Mel Gorman <mgorman@...e.de>, Vlastimil Babka <vbabka@...e.cz>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Alexei Starovoitov <ast@...com>
Subject: Re: [PATCH] mm, vmscan, tracing: Use pointer to reclaim_stat struct
 in trace event

On Fri 23-03-18 09:47:53, Steven Rostedt wrote:
> On Fri, 23 Mar 2018 14:42:00 +0100
> Michal Hocko <mhocko@...nel.org> wrote:
> 
> > Yes, the number of parameter is large. struct reclaim_stat is an
> > internal stuff so I didn't want to export it. I do not have strong
> > objections to add it somewhere tracing can find it though.
> 
> The one solution is to pull the tracing file
> include/trace/events/vmscan.h into mm/ and have a local header to store
> the reclaim_stat structure that both vmscan.h and vmscan.c can
> reference.

I guess we can live with the public definition as well.

-- 
Michal Hocko
SUSE Labs