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Subject[PATCH 06/11] huge-memory: Use lockdep_assert_held
Date
From: Andi Kleen <ak@linux.intel.com>

Use lockdep_assert_held to check for locks instead of an opencoded
variant.

Cc: aarcange@redhat.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
mm/huge_memory.c | 4 ++--
mm/swap.c | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 91d3efb..28669c6 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2083,7 +2083,7 @@ static void collect_mm_slot(struct mm_slot *mm_slot)
{
struct mm_struct *mm = mm_slot->mm;

- VM_BUG_ON(NR_CPUS != 1 && !spin_is_locked(&khugepaged_mm_lock));
+ lockdep_assert_held(&khugepaged_mm_lock);

if (khugepaged_test_exit(mm)) {
/* free mm_slot */
@@ -2113,7 +2113,7 @@ static unsigned int khugepaged_scan_mm_slot(unsigned int pages,
int progress = 0;

VM_BUG_ON(!pages);
- VM_BUG_ON(NR_CPUS != 1 && !spin_is_locked(&khugepaged_mm_lock));
+ lockdep_assert_held(&khugepaged_mm_lock);

if (khugepaged_scan.mm_slot)
mm_slot = khugepaged_scan.mm_slot;
diff --git a/mm/swap.c b/mm/swap.c
index fff1ff7..811e615 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -659,7 +659,7 @@ void lru_add_page_tail(struct zone* zone,
VM_BUG_ON(!PageHead(page));
VM_BUG_ON(PageCompound(page_tail));
VM_BUG_ON(PageLRU(page_tail));
- VM_BUG_ON(NR_CPUS != 1 && !spin_is_locked(&zone->lru_lock));
+ lockdep_assert_held(&zone->lru_lock);

SetPageLRU(page_tail);

--
1.7.7.6


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