[PATCH] hugetlb: ensure hugepage access is denied if hugepages are not supported

2014-04-10 Thread Nishanth Aravamudan
In KVM guests on Power, in a guest not backed by hugepages, we see the following: AnonHugePages: 0 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 64 kB HPAGE_SHIFT == 0 in this configuration, which indicates tha

Re: hugetlb: ensure hugepage access is denied if hugepages are not supported

2014-04-09 Thread Mel Gorman
On Thu, Apr 03, 2014 at 04:14:13PM -0700, Nishanth Aravamudan wrote: > In KVM guests on Power, in a guest not backed by hugepages, we see the > following: > > AnonHugePages: 0 kB > HugePages_Total: 0 > HugePages_Free:0 > HugePages_Rsvd:0 > HugePages_Surp:0 >

Re: hugetlb: ensure hugepage access is denied if hugepages are not supported

2014-04-03 Thread Aneesh Kumar K.V
Nishanth Aravamudan writes: > In KVM guests on Power, in a guest not backed by hugepages, we see the > following: > > AnonHugePages: 0 kB > HugePages_Total: 0 > HugePages_Free:0 > HugePages_Rsvd:0 > HugePages_Surp:0 > Hugepagesize: 64 kB > > HPAGE_SHI

hugetlb: ensure hugepage access is denied if hugepages are not supported

2014-04-03 Thread Nishanth Aravamudan
In KVM guests on Power, in a guest not backed by hugepages, we see the following: AnonHugePages: 0 kB HugePages_Total: 0 HugePages_Free:0 HugePages_Rsvd:0 HugePages_Surp:0 Hugepagesize: 64 kB HPAGE_SHIFT == 0 in this configuration, which indicates tha

Re: [RFC PATCH] hugetlb: ensure hugepage access is denied if hugepages are not supported

2014-04-03 Thread Nishanth Aravamudan
On 03.04.2014 [21:49:46 +0530], Aneesh Kumar K.V wrote: > Nishanth Aravamudan writes: > > > On 24.03.2014 [16:02:56 -0700], Nishanth Aravamudan wrote: > >> In KVM guests on Power, if the guest is not backed by hugepages, we see > >> the following in the guest: > >> > >> AnonHugePages: 0

Re: [RFC PATCH] hugetlb: ensure hugepage access is denied if hugepages are not supported

2014-04-03 Thread Aneesh Kumar K.V
Nishanth Aravamudan writes: > On 24.03.2014 [16:02:56 -0700], Nishanth Aravamudan wrote: >> In KVM guests on Power, if the guest is not backed by hugepages, we see >> the following in the guest: >> >> AnonHugePages: 0 kB >> HugePages_Total: 0 >> HugePages_Free:0 >> HugePage

Re: [RFC PATCH] hugetlb: ensure hugepage access is denied if hugepages are not supported

2014-04-02 Thread Nishanth Aravamudan
On 26.03.2014 [08:58:15 -0700], Nishanth Aravamudan wrote: > On 24.03.2014 [16:02:56 -0700], Nishanth Aravamudan wrote: > > In KVM guests on Power, if the guest is not backed by hugepages, we see > > the following in the guest: > > > > AnonHugePages: 0 kB > > HugePages_Total: 0 > > H

[RFC PATCH] hugetlb: ensure hugepage access is denied if hugepages are not supported

2014-03-26 Thread Nishanth Aravamudan
On 24.03.2014 [16:02:56 -0700], Nishanth Aravamudan wrote: > In KVM guests on Power, if the guest is not backed by hugepages, we see > the following in the guest: > > AnonHugePages: 0 kB > HugePages_Total: 0 > HugePages_Free:0 > HugePages_Rsvd:0 > HugePages_Surp: