On Fri, Oct 03 2014 at 7:55am -0400, Junichi Nomura <j-nomura@xxxxxxxxxxxxx> wrote: > alloc_tio() allocates a bio for clone. It takes the number of > bvecs to allocate for the clone-bio. > However, with the introduction of bio_clone_fast() in v3.14, > we no longer need to allocate bvecs and nr_iovecs is always 0. > > __clone_and_map_simple_bio() looks like passing non-zero > nr_iovecs, but its value is always within the range of > inline bvecs and no allocation actually happens. > If allocation happened, BUG_ON() in __bio_clone_fast() would > trigger. > > This patch removes the nr_iovecs parameter from alloc_tio() > to prevent possible future mis-use of the interface. > > Signed-off-by: Jun'ichi Nomura <j-nomura@xxxxxxxxxxxxx> I picked this patch up and staged in linux-dm.git's for-next, see: https://git.kernel.org/cgit/linux/kernel/git/device-mapper/linux-dm.git/commit/?h=for-next&id=8d59090cdc0ea91ffc390f78d0406baf8f66ae38 -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
