On Mon, Mar 26, 2012 at 12:32 PM, Mel Gorman [off-list ref] wrote:

On Sat, Mar 24, 2012 at 10:26:21AM -0400, Rik van Riel wrote:

quoted

Only test compaction_suitable if the kernel is built with CONFIG_COMPACTION,
otherwise the stub compaction_suitable function will always return
COMPACT_SKIPPED and send kswapd into an infinite loop.

Signed-off-by: Rik van Riel <redacted>
Reported-by: Anton Blanchard <redacted>

Acked-by: Mel Gorman <redacted>

The API looks fragile and this patch isn't exactly making it any
better. Why don't we make compaction_suitable() return something other
than COMPACT_SKIPPED for !CONFIG_COMPACTION case?

                        Pekka

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