mm/hmm: check the device private page owner in hmm_range_fault()

[linux-2.6-microblaze.git] / include / linux / hmm.h

diff --git a/include/linux/hmm.h b/include/linux/hmm.h
index 5e6034f..bb6be44 100644 (file)
--- a/include/linux/hmm.h
+++ b/include/linux/hmm.h
@@ -132,6 +132,7 @@ enum hmm_pfn_value_e {
  * @pfn_flags_mask: allows to mask pfn flags so that only default_flags matter
  * @pfn_shifts: pfn shift value (should be <= PAGE_SHIFT)
  * @valid: pfns array did not change since it has been fill by an HMM function
+ * @dev_private_owner: owner of device private pages
  */
 struct hmm_range {
        struct mmu_interval_notifier *notifier;
@@ -144,6 +145,7 @@ struct hmm_range {
        uint64_t                default_flags;
        uint64_t                pfn_flags_mask;
        uint8_t                 pfn_shift;
+       void                    *dev_private_owner;
 };
 
 /*