Minchan Kim <minchan@xxxxxxxxxx> writes: > Hello Rusty, > > On Thu, May 29, 2014 at 04:56:41PM +0930, Rusty Russell wrote: >> They don't make much difference: the easier fix is use gcc 4.8 >> which drops stack required across virtio block's virtio_queue_rq >> down to that kmalloc in virtio_ring from 528 to 392 bytes. >> >> Still, these (*lightly tested*) patches reduce to 432 bytes, >> even for gcc 4.6.4. Posted here FYI. > > I am testing with below which was hack for Dave's idea so don't have > a machine to test your patches until tomorrow. > So, I will queue your patches into testing machine tomorrow morning. More interesting would be updating your compiler to 4.8, I think. Saving <100 bytes on virtio is not going to save you, right? Cheers, Rusty. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>