Re: [PATCH RFC] mm: implement write-behind policy for sequential file writes

[Florian Weimer]

On 10/02/2017 11:54 AM, Konstantin Khlebnikov wrote:
> This patch implements write-behind policy which tracks sequential writes
> and starts background writeback when have enough dirty pages in a row.

Does this apply to data for files which have never been written to disk 
before?

I think one of the largest benefits of the extensive write-back caching 
in Linux is that the cache is discarded if the file is deleted before it 
is ever written to disk.  (But maybe I'm wrong about this.)

Thanks,
Florian