On Fri, Dec 21, 2012 at 02:46:50PM +0400, Glauber Costa wrote:
> In very low free kernel memory situations, it may be the case that we
> have less objects to free than our initial batch size. If this is the
> case, it is better to shrink those, and open space for the new workload
> then to keep them and fail the new allocations.
>
> More specifically, this happens because we encode this in a loop with
> the condition: "while (total_scan >= batch_size)". So if we are in such
> a case, we'll not even enter the loop.
>
> This patch modifies turns it into a do () while {} loop, that will
> guarantee that we scan it at least once, while keeping the behaviour
> exactly the same for the cases in which total_scan > batch_size.
>
> Signed-off-by: Glauber Costa <glommer@xxxxxxxxxxxxx>
> Acked-by: Dave Chinner <david@xxxxxxxxxxxxx>
I think you'll find I said:
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
That has a significantly different meaning to Acked-by, so you
should be careful to correctly transcribe tags back to the
patches...
Cheers,
Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx
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