| commit | 5e1d44aef1673b504dde475aa714b1bdb9b875c4 | [log] [tgz] |
|---|---|---|
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | Mon Mar 30 10:39:12 2015 +0530 |
| committer | Michael Ellerman <mpe@ellerman.id.au> | Fri Apr 17 11:23:24 2015 +1000 |
| tree | 714b46d9dc7be08812ada52878088dc2e8165b5c | |
| parent | 1cbee462a5afc1cc30389915b3d18bdcb3c47ad6 [diff] |
KVM: PPC: Use READ_ONCE when dereferencing pte_t pointer pte can get updated from other CPUs as part of multiple activities like THP split, huge page collapse, unmap. We need to make sure we don't reload the pte value again and again for different checks. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>