[dm-devel] [PATCH 5/5] dm thin: unroll issue_discard() to create longer discard bio chains

[Joe Thornber]

On Fri, May 06, 2016 at 06:44:35PM +0200, Christoph Hellwig wrote:
> On Fri, May 06, 2016 at 05:36:58PM +0100, Joe Thornber wrote:
> > But the plugging and error handling are called from two places.
> > process_prepared_discard_passdown() and
> > passdown_double_checking_shared_status().
> 
> passdown_double_checking_shared_status is only called from
> process_prepared_discard_passdown.  So the blk_start_plug from
> begin_discard and the work in end_discard could be moved into
> it trivially.

Good point, will do.  Thx.