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Message-Id: <20220510203222.24246-2-shy828301@gmail.com>
Date: Tue, 10 May 2022 13:32:15 -0700
From: Yang Shi <shy828301@...il.com>
To: vbabka@...e.cz, kirill.shutemov@...ux.intel.com,
linmiaohe@...wei.com, songliubraving@...com, riel@...riel.com,
willy@...radead.org, ziy@...dia.com, tytso@....edu,
akpm@...ux-foundation.org
Cc: shy828301@...il.com, linux-mm@...ck.org,
linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [v4 PATCH 1/8] sched: coredump.h: clarify the use of MMF_VM_HUGEPAGE
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@...wei.com>
Acked-by: Song Liu <song@...nel.org>
Acked-by: Vlastmil Babka <vbabka@...e.cz>
Signed-off-by: Yang Shi <shy828301@...il.com>
---
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
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