Now, khugepaged creation and cancel are completely serial under the
protection of khugepaged_mutex, it is impossible that many khugepaged
entities are running
Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx>
---
mm/huge_memory.c | 5 +----
1 files changed, 1 insertions(+), 4 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 3715c52..b218700 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2348,11 +2348,8 @@ static int khugepaged(void *none)
set_freezable();
set_user_nice(current, 19);
- while (!kthread_should_stop()) {
- VM_BUG_ON(khugepaged_thread != current);
+ while (!kthread_should_stop())
khugepaged_loop();
- VM_BUG_ON(khugepaged_thread != current);
- }
spin_lock(&khugepaged_mm_lock);
mm_slot = khugepaged_scan.mm_slot;
--
1.7.7.6
--
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