net: ethernet: ti: add missing GENERIC_ALLOCATOR dependency

[linux.git] / mm / mmu_notifier.c

diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index eff6b88a993f2491b8fb96a2ad553196448966da..82bb1a939c0e496affc2849c1e1af795fe3d5d96 100644 (file)
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -174,18 +174,29 @@ void __mmu_notifier_change_pte(struct mm_struct *mm, unsigned long address,
        srcu_read_unlock(&srcu, id);
 }
 
-void __mmu_notifier_invalidate_range_start(struct mm_struct *mm,
-                                 unsigned long start, unsigned long end)
+int __mmu_notifier_invalidate_range_start(struct mm_struct *mm,
+                                 unsigned long start, unsigned long end,
+                                 bool blockable)
 {
        struct mmu_notifier *mn;
+       int ret = 0;
        int id;
 
        id = srcu_read_lock(&srcu);
        hlist_for_each_entry_rcu(mn, &mm->mmu_notifier_mm->list, hlist) {
-               if (mn->ops->invalidate_range_start)
-                       mn->ops->invalidate_range_start(mn, mm, start, end);
+               if (mn->ops->invalidate_range_start) {
+                       int _ret = mn->ops->invalidate_range_start(mn, mm, start, end, blockable);
+                       if (_ret) {
+                               pr_info("%pS callback failed with %d in %sblockable context.\n",
+                                               mn->ops->invalidate_range_start, _ret,
+                                               !blockable ? "non-" : "");
+                               ret = _ret;
+                       }
+               }
        }
        srcu_read_unlock(&srcu, id);
+
+       return ret;
 }
 EXPORT_SYMBOL_GPL(__mmu_notifier_invalidate_range_start);