Messages in this thread | | | Date | Wed, 20 Jun 2012 13:08:08 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH 07/12] mm: Add support for direct_IO to highmem pages |
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On 06/20/2012 05:37 AM, Mel Gorman wrote: > The patch "mm: Add support for a filesystem to activate swap files and > use direct_IO for writing swap pages" added support for using direct_IO > to write swap pages but it is insufficient for highmem pages. > > To support highmem pages, this patch kmaps() the page before calling the > direct_IO() handler. As direct_IO deals with virtual addresses an > additional helper is necessary for get_kernel_pages() to lookup the > struct page for a kmap virtual address. > > Signed-off-by: Mel Gorman<mgorman@suse.de>
Acked-by: Rik van Riel<riel@redhat.com>
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