On Thu, Jun 12, 2014 at 04:40:29PM +0900, Minchan Kim wrote: > On Thu, Jun 12, 2014 at 12:21:47PM +0900, Joonsoo Kim wrote: > > Currently, we should take the mutex for manipulating bitmap. > > This job may be really simple and short so we don't need to sleep > > if contended. So I change it to spinlock. > > I'm not sure it would be good always. > Maybe you remember we discussed about similar stuff about bitmap > searching in vmap friend internally, which was really painful > when it was fragmented. So, at least we need number if you really want > and I hope the number from ARM machine most popular platform for CMA > at the moment. Good Point!! Agreed. I will drop this one in next spin and re-submit in separate patchset after some testing. Thanks. -- 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>