On Wed, 29 Aug 2012 08:41:02 -0400 paul.cleme...@steeleye.com wrote: > Description: This patch adds discard support to nbd. When the nbd client > system receives a discard request, this will be passed along to the nbd > server system, where the nbd-server will respond by performing: > fallocate(.. FALLOC_FL_PUNCH_HOLE ..) > > To punch a hole in the backend storage, which is no longer needed. >
What happens if the user is running an older server? I is it possible that because the old server didn't set NBD_FLAG_SEND_TRIM, the user's screen gets filled with WARN_ONs? Anyway, please make sure this combination was tested! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
