Hi Ilya, I think your patch fully completes our purpose and I confirmed that the kernel with the patch could work well by testing in my environment. I added the notrim option to rbd map command in accordance with your kernel rbd driver patch, and I pushed the patch to GitHub (https://github.com/hitoshikamei/ceph/tree/rbdmap-notrim). So, could you please merge your patch to the kernel? If your patch is merged, then my patch can work, so I will send the Pull Request. Regards, -- Hitoshi Kamei ��.n��������+%������w��{.n����z��u���ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f