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Date: Tue, 5 Feb 2013 08:29:26 +0900 From: Kyungmin Park <kmpark@...radead.org> To: Andrew Morton <akpm@...ux-foundation.org> Cc: Marek Szyprowski <m.szyprowski@...sung.com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, minchan@...nel.org, mgorman@...e.de Subject: Re: [PATCH] mm: cma: fix accounting of CMA pages placed in high memory On Tue, Feb 5, 2013 at 8:06 AM, Andrew Morton <akpm@...ux-foundation.org> wrote: > On Mon, 04 Feb 2013 11:27:05 +0100 > Marek Szyprowski <m.szyprowski@...sung.com> 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. > > What are the end-user-visible effects of this bug? Even though CMA is located at highmem. LowTotal has more than lowmem address spaces. e.g., lowmem : 0xc0000000 - 0xdf000000 ( 496 MB) LowTotal: 555788 kB > > (This information is needed so that others can make patch-scheduling > decisions and should be included in all bugfix changelogs unless it is > obvious). CMA Highmem support is new feature. so don't need to go stable tree. Thank you, Kyungmin Park > > -- > To unsubscribe, send a message with 'unsubscribe linux-mm' in > the body to majordomo@...ck.org. For more info on Linux MM, > see: http://www.linux-mm.org/ . > Don't email: <a href=mailto:"dont@...ck.org"> email@...ck.org </a> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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