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Date:   Fri, 22 Sep 2017 15:14:38 +0200
From:   Jan Kara <>
To:     Jens Axboe <>
Subject: Re: [PATCH 4/7] page-writeback: pass in '0' for nr_pages writeback
 in laptop mode

On Wed 20-09-17 09:32:59, Jens Axboe wrote:
> Laptop mode really wants to writeback the number of dirty
> pages and inodes. Instead of calculating this in the caller,
> just pass in 0 and let wakeup_flusher_threads() handle it.
> Use the new wakeup_flusher_threads_bdi() instead of rolling
> our own. This changes the writeback to not be range cyclic,
> but that should not matter for laptop mode flush-all
> semantics.
> Acked-by: Johannes Weiner <>
> Tested-by: Chris Mason <>
> Signed-off-by: Jens Axboe <>
> Reviewed-by: Jan Kara <>
> Signed-off-by: Jens Axboe <>

The subject of the patch looks stale.


Jan Kara <>

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