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Diffstat (limited to 'mm/mmu_notifier.c')
-rw-r--r--mm/mmu_notifier.c31
1 files changed, 11 insertions, 20 deletions
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index 5119ff846769..9c884abc7850 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -35,13 +35,6 @@ void mmu_notifier_call_srcu(struct rcu_head *rcu,
}
EXPORT_SYMBOL_GPL(mmu_notifier_call_srcu);
-void mmu_notifier_synchronize(void)
-{
- /* Wait for any running method to finish. */
- srcu_barrier(&srcu);
-}
-EXPORT_SYMBOL_GPL(mmu_notifier_synchronize);
-
/*
* This function can't run concurrently against mmu_notifier_register
* because mm->mm_users > 0 during mmu_notifier_register and exit_mmap
@@ -174,22 +167,20 @@ void __mmu_notifier_change_pte(struct mm_struct *mm, unsigned long address,
srcu_read_unlock(&srcu, id);
}
-int __mmu_notifier_invalidate_range_start(struct mm_struct *mm,
- unsigned long start, unsigned long end,
- bool blockable)
+int __mmu_notifier_invalidate_range_start(struct mmu_notifier_range *range)
{
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) {
+ hlist_for_each_entry_rcu(mn, &range->mm->mmu_notifier_mm->list, hlist) {
if (mn->ops->invalidate_range_start) {
- int _ret = mn->ops->invalidate_range_start(mn, mm, start, end, blockable);
+ int _ret = mn->ops->invalidate_range_start(mn, range);
if (_ret) {
pr_info("%pS callback failed with %d in %sblockable context.\n",
- mn->ops->invalidate_range_start, _ret,
- !blockable ? "non-" : "");
+ mn->ops->invalidate_range_start, _ret,
+ !range->blockable ? "non-" : "");
ret = _ret;
}
}
@@ -200,16 +191,14 @@ int __mmu_notifier_invalidate_range_start(struct mm_struct *mm,
}
EXPORT_SYMBOL_GPL(__mmu_notifier_invalidate_range_start);
-void __mmu_notifier_invalidate_range_end(struct mm_struct *mm,
- unsigned long start,
- unsigned long end,
+void __mmu_notifier_invalidate_range_end(struct mmu_notifier_range *range,
bool only_end)
{
struct mmu_notifier *mn;
int id;
id = srcu_read_lock(&srcu);
- hlist_for_each_entry_rcu(mn, &mm->mmu_notifier_mm->list, hlist) {
+ hlist_for_each_entry_rcu(mn, &range->mm->mmu_notifier_mm->list, hlist) {
/*
* Call invalidate_range here too to avoid the need for the
* subsystem of having to register an invalidate_range_end
@@ -224,9 +213,11 @@ void __mmu_notifier_invalidate_range_end(struct mm_struct *mm,
* already happen under page table lock.
*/
if (!only_end && mn->ops->invalidate_range)
- mn->ops->invalidate_range(mn, mm, start, end);
+ mn->ops->invalidate_range(mn, range->mm,
+ range->start,
+ range->end);
if (mn->ops->invalidate_range_end)
- mn->ops->invalidate_range_end(mn, mm, start, end);
+ mn->ops->invalidate_range_end(mn, range);
}
srcu_read_unlock(&srcu, id);
}