On Fri, Jan 18, 2019 at 02:40:00PM +0100, Vlastimil Babka wrote:
> > Signed-off-by: Mel Gorman
>
> Great, you crossed off this old TODO item, and didn't need pageblock isolation
> to do that :D
>
The TODO is not just old, it's ancient! The idea of capture was first
floated in 2008! A version
On 1/4/19 1:50 PM, Mel Gorman wrote:
> Compaction is inherently race-prone as a suitable page freed during
> compaction can be allocated by any parallel task. This patch uses a
> capture_control structure to isolate a page immediately when it is freed
> by a direct compactor in the slow path of
Compaction is inherently race-prone as a suitable page freed during
compaction can be allocated by any parallel task. This patch uses a
capture_control structure to isolate a page immediately when it is freed
by a direct compactor in the slow path of the page allocator. The intent
is to avoid
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