On Wed, Mar 14, 2012 at 11:53 AM, Vivek Goyal <vgoyal@xxxxxxxxxx> wrote: > On Wed, Mar 14, 2012 at 09:32:28AM -0400, Kent Overstreet wrote: >> I'm already registered to attend, but would it be too late in the >> process to give a talk? I'd like to give a short talk about bcache, what >> it does and where it's going (more than just caching). > > [CCing dm-devel list] > > I am curious if you considered writing a device mapper driver for this? If > yes, why that is not a good choice. It seems to be stacked device and device > mapper should be good at that. All the configuration through sysfs seems > little odd to me. I'm not a dm guru but a quick scan at flash-cache seems like it does what you are saying. Now, if performance isn't acceptable then hashes can be replaced with trees and what-not. Also no one would need to re-invent the stacking mechanism. I saw thin support(atleast documented) for dm. Plus, no matter what cache you come up with you may have to persist/store the meta-data associated with it. And dm seems like the right place to abstract that. > Vivek Chetan -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
