Re: [PATCH] writeback: fix range_cyclic writeback vs writepages deadlock

[Andrew Morton]

On Fri,  5 Oct 2018 15:45:26 +1000 Dave Chinner <david@xxxxxxxxxxxxx> wrote:

> From: Dave Chinner <dchinner@xxxxxxxxxx>
> 
> We've recently seen a workload on XFS filesystems with a repeatable
> deadlock between background writeback and a multi-process
> application doing concurrent writes and fsyncs to a small range of a
> file.
> 
> ...
> 
> Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
> Reviewed-by: Jan Kara <jack@xxxxxxx>

Not a serious enough problem for a -stable backport?