From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx169.postini.com [74.125.245.169]) by kanga.kvack.org (Postfix) with SMTP id 4E00C6B0008 for ; Mon, 4 Feb 2013 07:55:14 -0500 (EST) Received: by mail-ia0-f172.google.com with SMTP id u8so8124702iag.31 for ; Mon, 04 Feb 2013 04:55:13 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <1359973626-3900-1-git-send-email-m.szyprowski@samsung.com> References: <1359973626-3900-1-git-send-email-m.szyprowski@samsung.com> Date: Mon, 4 Feb 2013 21:55:13 +0900 Message-ID: Subject: Re: [PATCH] mm: cma: fix accounting of CMA pages placed in high memory From: Kyungmin Park Content-Type: multipart/alternative; boundary=20cf30334ac39f659804d4e59a5a Sender: owner-linux-mm@kvack.org List-ID: To: Marek Szyprowski Cc: "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "akpm@linux-foundation.org" , "minchan@kernel.org" , "mgorman@suse.de" , "kyungmin.park@samsung.com" --20cf30334ac39f659804d4e59a5a Content-Type: text/plain; charset=ISO-8859-1 On Monday, February 4, 2013, Marek Szyprowski wrote: > The total number of low memory pages is determined as > totalram_pages - totalhigh_pages, so without this patch all CMA > pageblocks placed in highmem were accounted to low memory. > > Signed-off-by: Marek Szyprowski > Acked-by: Kyungmin Park > --- > mm/page_alloc.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index f5bab0a..6415d93 100644 > --- a/mm/page_alloc.c > +++ b/mm/page_alloc.c > @@ -773,6 +773,10 @@ void __init init_cma_reserved_pageblock(struct page > *page) > set_pageblock_migratetype(page, MIGRATE_CMA); > __free_pages(page, pageblock_order); > totalram_pages += pageblock_nr_pages; > +#ifdef CONFIG_HIGHMEM > + if (PageHighMem(page)) > + totalhigh_pages += pageblock_nr_pages; > +#endif > } > #endif > > -- > 1.7.9.5 > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@kvack.org . For more info on Linux > MM, > see: http://www.linux-mm.org/ . > Don't email: "> > email@kvack.org > --20cf30334ac39f659804d4e59a5a Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable

On Monday, February 4, 2013, Marek Szyprowski wrote:
The total number of low memory pages is determined as<= br> totalram_pages - totalhigh_pages, so without this patch all CMA
pageblocks placed in highmem were accounted to low memory.

Signed-off-by: Marek Szyprowski <m.szyprowski@sa= msung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>=A0
---
=A0mm/page_alloc.c | =A0 =A04 ++++
=A01 file changed, 4 insertions(+)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index f5bab0a..6415d93 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -773,6 +773,10 @@ void __init init_cma_reserved_pageblock(struct page *p= age)
=A0 =A0 =A0 =A0 set_pageblock_migratetype(page, MIGRATE_CMA);
=A0 =A0 =A0 =A0 __free_pages(page, pageblock_order);
=A0 =A0 =A0 =A0 totalram_pages +=3D pageblock_nr_pages;
+#ifdef CONFIG_HIGHMEM
+ =A0 =A0 =A0 if (PageHighMem(page))
+ =A0 =A0 =A0 =A0 =A0 =A0 =A0 totalhigh_pages +=3D pageblock_nr_pages;
+#endif
=A0}
=A0#endif

--
1.7.9.5

--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. =A0For more info on= Linux MM,
see: http://www.linu= x-mm.org/ .
Don't email: <a href=3Dmailto:"dont@kvack.org= "> email@kvack.org </a>
--20cf30334ac39f659804d4e59a5a-- -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org