On Tue, Oct 02, 2012 at 02:59:55PM -0400, Vivek Goyal wrote: > On Mon, Sep 24, 2012 at 03:34:44PM -0700, Kent Overstreet wrote: > > Converts it to use bio_advance(), simplifying it quite a bit in the > > process. > > > > Note that req_bio_endio() now always calls bio_advance() - which means > > it always loops over the biovec, not just on partial completions. Don't > > expect it to affect performance, but worth noting. > > > > Tested it by forcing partial updates, and dumping before and after on > > various bio/bvec fields when doing a partial update. > > Kent, > > In general, have you tested all these changes with FLUSH and DISCARD > bios/requests. Some of the code paths tend to break down because of these > special bios don't have payload. Believe so, I should double check - also, I changed the bio_advance() patch since the one I posted to make it handle DISCARD and WRITE_SAME requests more explicitly. (At this level, discards do (sometimes) have payloads, it's just always a single page) -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
