From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
To: Dave Hansen <dave@sr71.net>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Mel Gorman <mgorman@suse.de>,
Johannes Weiner <hannes@cmpxchg.org>,
Minchan Kim <minchan@kernel.org>,
Alexander Nyberg <alexn@dsv.su.se>,
Dave Hansen <dave@linux.vnet.ibm.com>,
Michal Nazarewicz <mina86@mina86.com>,
Jungsoo Son <jungsoo.son@lge.com>, Ingo Molnar <mingo@redhat.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 1/5] mm/page_ext: resurrect struct page extending code for debugging
Date: Thu, 13 Nov 2014 15:40:35 +0900 [thread overview]
Message-ID: <20141113064035.GB18369@js1304-P5Q-DELUXE> (raw)
In-Reply-To: <54638BE4.3080509@sr71.net>
On Wed, Nov 12, 2014 at 08:33:40AM -0800, Dave Hansen wrote:
> On 11/12/2014 12:27 AM, Joonsoo Kim wrote:
> > @@ -1092,6 +1096,14 @@ struct mem_section {
> >
> > /* See declaration of similar field in struct zone */
> > unsigned long *pageblock_flags;
> > +#ifdef CONFIG_PAGE_EXTENSION
> > + /*
> > + * If !SPARSEMEM, pgdat doesn't have page_ext pointer. We use
> > + * section. (see page_ext.h about this.)
> > + */
> > + struct page_ext *page_ext;
> > + unsigned long pad;
> > +#endif
>
> Will the distributions be amenable to enabling this? If so, I'm all for
> it if it gets us things like page_owner at runtime.
Yes, I hope so.
At least, I can make it default to our product. But, how distributions
will do is beyond my power. :)
Thanks.
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next prev parent reply other threads:[~2014-11-13 6:38 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-12 8:27 [RFC PATCH 0/5] Resurrect and use struct page extension for some debugging features Joonsoo Kim
2014-11-12 8:27 ` [RFC PATCH 1/5] mm/page_ext: resurrect struct page extending code for debugging Joonsoo Kim
2014-11-12 16:33 ` Dave Hansen
2014-11-13 6:40 ` Joonsoo Kim [this message]
2014-11-13 20:40 ` Andrew Morton
2014-11-14 0:14 ` Joonsoo Kim
2014-11-12 8:27 ` [RFC PATCH 2/5] mm/debug-pagealloc: prepare boottime configurable on/off Joonsoo Kim
2014-11-12 8:27 ` [RFC PATCH 3/5] mm/debug-pagealloc: make debug-pagealloc boottime configurable Joonsoo Kim
2014-11-12 8:27 ` [RFC PATCH 4/5] stacktrace: support snprint Joonsoo Kim
2014-11-12 8:27 ` [RFC PATCH 5/5] mm/page_owner: keep track of page owners Joonsoo Kim
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