[dm-devel] [PATCH v2] dm-zoned: Avoid triggering reclaim from inside dmz_map()

[Bart Van Assche]

On Wed, 2018-06-27 at 11:14 -0400, Mikulas Patocka wrote:
> OK - but I think a proper fix would be to preallocate the chunks and the 
> radix tree when the device is created.
> 
> If the system is highly stressed, it may be possible that the GFP_NOIO 
> allocation would wait for some data being written back - and the write 
> back may be directed back to the dm-zoned device, waiting for the GFP_NOIO 
> allocation to succeed.

Hello Mikulas,

Thank you for the feedback. We will look further into this.

Bart.