From: Nitin Gupta <nitin.m.gu...@oracle.com> Date: Wed, 30 Mar 2016 11:17:13 -0700
> During hugepage map/unmap, TSB and TLB flushes are currently > issued at every PAGE_SIZE'd boundary which is unnecessary. > We now issue the flush at REAL_HPAGE_SIZE boundaries only. > > Without this patch workloads which unmap a large hugepage > backed VMA region get CPU lockups due to excessive TLB > flush calls. > > Orabug: 22365539, 22643230, 22995196 > > Signed-off-by: Nitin Gupta <nitin.m.gu...@oracle.com> Looks good, applied and queued up for -stable. Thanks for being so patient.
