On Mon, 11 Apr 2011 14:11:58 +0200 Jens Axboe [off-list ref] wrote:

quoted

Yes.  But I need to know when to release the requests that I have stored.
I need to know when ->write_pages or ->read_pages or whatever has finished
submitting a pile of pages so that I can start processing the request that I
have put aside.  So I need a callback from blk_finish_plug.

OK fair enough, I'll add your callback patch.

Thanks.  I'll queue up my md fixes to follow it once it gets  to -linus.

NeilBrown