On Tue, 28 Apr 2009, Alasdair G Kergon wrote: > In other words, I'm asking for it to be defined and documented what the > target map function receives as input for one of these flush requests. > > Alasdair > -- > agk@xxxxxxxxxx It receives what it's set in dm_flush and __clone_and_map_empty_barrier. bio is standard zero barrier with set bi_bdev and bi_rw. tio->info.flush_request is the sequence number of the request. (typical devices require just one request, dm_stripe asks for several requests for each striped device). Mikulas -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel