[v4 PATCH 1/8] sched: coredump.h: clarify the use of MMF_VM_HUGEPAGE

[Yang Shi]

MMF_VM_HUGEPAGE is set as long as the mm is available for khugepaged by
khugepaged_enter(), not only when VM_HUGEPAGE is set on vma.  Correct
the comment to avoid confusion.

Reviewed-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Acked-by: Song Liu <song@xxxxxxxxxx>
Acked-by: Vlastmil Babka <vbabka@xxxxxxx>
Signed-off-by: Yang Shi <shy828301@xxxxxxxxx>
---
 include/linux/sched/coredump.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h
index 4d9e3a656875..4d0a5be28b70 100644
--- a/include/linux/sched/coredump.h
+++ b/include/linux/sched/coredump.h
@@ -57,7 +57,8 @@ static inline int get_dumpable(struct mm_struct *mm)
 #endif
 					/* leave room for more dump flags */
 #define MMF_VM_MERGEABLE	16	/* KSM may merge identical pages */
-#define MMF_VM_HUGEPAGE		17	/* set when VM_HUGEPAGE is set on vma */
+#define MMF_VM_HUGEPAGE		17	/* set when mm is available for
+					   khugepaged */
 /*
  * This one-shot flag is dropped due to necessity of changing exe once again
  * on NFS restore
-- 
2.26.3