[PATCH 04/12] thp: remove unnecessary khugepaged_thread check

[Xiao Guangrong]

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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/