Il 09/03/2012 11:53, Stefan Hajnoczi ha scritto: > >> > 1) require a new-enough kernel and only use fallocate; return a NULL >> > aiocb if !has_discard and convert it to ENOTSUP. >> > >> > 2) extract now from my threads branch the work to generalize >> > posix-aio-compat into a more flexible threadpool, and move the AIO code >> > back to block/raw-posix.c. > 3) Add discard to posix-aio-compat.c as an AIO request?
That would be (1) or you would need to pass down is_xfs. Paolo
