Re: [PATCH] mm: Avoid possible deadlock caused by too_many_isolated()

[Rik van Riel]

On 10/22/2010 12:55 AM, Wu Fengguang wrote:

> Now !GFP_IOFS reclaims won't be waiting for GFP_IOFS reclaims to
> progress. They will be blocked only when there are too many concurrent
> !GFP_IOFS reclaims, however that's very unlikely because the IO-less
> direct reclaims is able to progress much more faster, and they won't
> deadlock each other. The threshold is raised high enough for them, so
> that there can be sufficient parallel progress of !GFP_IOFS reclaims.
>
> CC: Torsten Kaiser<just.for.lkml@xxxxxxxxxxxxxx>
> CC: Minchan Kim<minchan.kim@xxxxxxxxx>
> Tested-by: NeilBrown<neilb@xxxxxxx>
> Acked-by: KOSAKI Motohiro<kosaki.motohiro@xxxxxxxxxxxxxx>
> Signed-off-by: Wu Fengguang<fengguang.wu@xxxxxxxxx>

Acked-by: Rik van Riel <riel@xxxxxxxxxx>

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