[Devel] [PATCH v4 rh7 2/3] mm/page-writeback: Introduce per-CT dirty memory limit.

[Andrey Ryabinin]

On 01/21/2016 02:43 PM, Andrey Ryabinin wrote:
> +	/*
> +	 * We start background writeout at the lower ub_background_thresh,
> +	 * to keep the amount of dirty memory low.
> +	 */
> +	if (!laptop_mode && ub_dirty > ub_background_thresh)

Ugh... Should be:

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 6bf5419..64a64f3 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -1481,7 +1481,7 @@ static void balance_dirty_pages_ub(struct address_space *mapping,
         * We start background writeout at the lower ub_background_thresh,
         * to keep the amount of dirty memory low.
         */
-       if (!laptop_mode && ub_dirty > ub_background_thresh)
+       if (ub_dirty > ub_background_thresh)
                bdi_start_background_writeback(bdi);
 }
 

> +		bdi_start_background_writeback(bdi);
> +}
> +