Messages in this thread |  | | Date | Wed, 12 Feb 2014 11:16:31 +0000 | From | Mel Gorman <> | Subject | Re: [patch 05/10] mm: filemap: move radix tree hole searching here |
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On Mon, Feb 03, 2014 at 07:53:37PM -0500, Johannes Weiner wrote: > The radix tree hole searching code is only used for page cache, for > example the readahead code trying to get a a picture of the area > surrounding a fault. > > It sufficed to rely on the radix tree definition of holes, which is > "empty tree slot". But this is about to change, though, as shadow > page descriptors will be stored in the page cache after the actual > pages get evicted from memory. > > Move the functions over to mm/filemap.c and make them native page > cache operations, where they can later be adapted to handle the new > definition of "page cache hole". > > Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> > Reviewed-by: Rik van Riel <riel@redhat.com> > Reviewed-by: Minchan Kim <minchan@kernel.org>
Acked-by: Mel Gorman <mgorman@suse.de>
-- Mel Gorman SUSE Labs
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