diff options
| author | Andi Kleen <ak@linux.intel.com> | 2016-10-26 17:56:14 +0200 |
|---|---|---|
| committer | Michal Hocko <mhocko@suse.com> | 2016-10-26 18:12:17 +0200 |
| commit | c47783fc457ad660b5559cb48a9a43e2ddcfdbac (patch) | |
| tree | 6e35fef859c285daf2e859259428db970f5c6846 | |
| parent | d777b230cd7abb14498aed3294ae4099aa06d2d6 (diff) | |
dont-touch-single-threaded-ptes-which-are-on-the-right-node-v3
v3: Minor updates from Mel. Change code layout.
Link: http://lkml.kernel.org/r/1476382117-5440-1-git-send-email-andi@firstfloor.org
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
| -rw-r--r-- | mm/mprotect.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/mprotect.c b/mm/mprotect.c index d6f232052b07..3ec7352296e5 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -68,16 +68,16 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd, pte_t *pte, oldpte; spinlock_t *ptl; unsigned long pages = 0; - int target_node = -1; + int target_node = NUMA_NO_NODE; pte = lock_pte_protection(vma, pmd, addr, prot_numa, &ptl); if (!pte) return 0; - if (prot_numa && - !(vma->vm_flags & VM_SHARED) && + /* Get target node for single threaded private VMAs */ + if (prot_numa && !(vma->vm_flags & VM_SHARED) && atomic_read(&vma->vm_mm->mm_users) == 1) - target_node = cpu_to_node(raw_smp_processor_id()); + target_node = numa_node_id(); arch_enter_lazy_mmu_mode(); do { |