diff options
Diffstat (limited to 'mm/mmu_notifier.c')
| -rw-r--r-- | mm/mmu_notifier.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c index 05d98167da7b..3f39fb1402db 100644 --- a/mm/mmu_notifier.c +++ b/mm/mmu_notifier.c @@ -243,6 +243,13 @@ int __mmu_notifier_register(struct mmu_notifier *mn, struct mm_struct *mm) lockdep_assert_held_write(&mm->mmap_sem); BUG_ON(atomic_read(&mm->mm_users) <= 0); + if (IS_ENABLED(CONFIG_LOCKDEP)) { + fs_reclaim_acquire(GFP_KERNEL); + lock_map_acquire(&__mmu_notifier_invalidate_range_start_map); + lock_map_release(&__mmu_notifier_invalidate_range_start_map); + fs_reclaim_release(GFP_KERNEL); + } + mn->mm = mm; mn->users = 1; |