diff options
-rw-r--r-- | mm/khugepaged.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 6b9d39d65b73..3649ba12a235 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -422,19 +422,17 @@ void __khugepaged_enter(struct mm_struct *mm) struct mm_slot *slot; int wakeup; + /* __khugepaged_exit() must not run from under us */ + VM_BUG_ON_MM(hpage_collapse_test_exit(mm), mm); + if (unlikely(test_and_set_bit(MMF_VM_HUGEPAGE, &mm->flags))) + return; + mm_slot = mm_slot_alloc(mm_slot_cache); if (!mm_slot) return; slot = &mm_slot->slot; - /* __khugepaged_exit() must not run from under us */ - VM_BUG_ON_MM(hpage_collapse_test_exit(mm), mm); - if (unlikely(test_and_set_bit(MMF_VM_HUGEPAGE, &mm->flags))) { - mm_slot_free(mm_slot_cache, mm_slot); - return; - } - spin_lock(&khugepaged_mm_lock); mm_slot_insert(mm_slots_hash, mm, slot); /* |