From: Yang Shi <shy828301@gmail.com>
To: vbabka@suse.cz, kirill.shutemov@linux.intel.com,
linmiaohe@huawei.com, songliubraving@fb.com, riel@surriel.com,
willy@infradead.org, ziy@nvidia.com, akpm@linux-foundation.org,
tytso@mit.edu, adilger.kernel@dilger.ca, darrick.wong@oracle.com
Cc: shy828301@gmail.com, linux-mm@kvack.org,
linux-fsdevel@vger.kernel.org, linux-ext4@vger.kernel.org,
linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [v2 PATCH 1/8] sched: coredump.h: clarify the use of MMF_VM_HUGEPAGE
Date: Thu, 17 Mar 2022 16:48:20 -0700 [thread overview]
Message-ID: <20220317234827.447799-2-shy828301@gmail.com> (raw)
In-Reply-To: <20220317234827.447799-1-shy828301@gmail.com>
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@huawei.com>
Signed-off-by: Yang Shi <shy828301@gmail.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
next prev parent reply other threads:[~2022-03-17 23:48 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-17 23:48 [v2 PATCH 0/8] Make khugepaged collapse readonly FS THP more consistent Yang Shi
2022-03-17 23:48 ` Yang Shi [this message]
2022-03-17 23:48 ` [v2 PATCH 2/8] mm: khugepaged: remove redundant check for VM_NO_KHUGEPAGED Yang Shi
2022-03-17 23:48 ` [v2 PATCH 3/8] mm: khugepaged: skip DAX vma Yang Shi
2022-03-21 12:04 ` Hyeonggon Yoo
2022-03-21 20:59 ` Yang Shi
2022-03-17 23:48 ` [v2 PATCH 4/8] mm: thp: only regular file could be THP eligible Yang Shi
2022-03-17 23:48 ` [v2 PATCH 5/8] mm: khugepaged: make khugepaged_enter() void function Yang Shi
2022-03-17 23:48 ` [v2 PATCH 6/8] mm: khugepaged: move some khugepaged_* functions to khugepaged.c Yang Shi
2022-03-17 23:48 ` [v2 PATCH 7/8] mm: khugepaged: introduce khugepaged_enter_file() helper Yang Shi
2022-03-17 23:48 ` [v2 PATCH 8/8] fs: register suitable readonly vmas for khugepaged Yang Shi
2022-03-18 1:10 ` [v2 PATCH 0/8] Make khugepaged collapse readonly FS THP more consistent Song Liu
2022-03-18 1:29 ` Dave Chinner
2022-03-18 3:38 ` Matthew Wilcox
2022-03-18 18:04 ` Yang Shi
2022-03-18 18:48 ` Matthew Wilcox
2022-03-18 20:19 ` Yang Shi
2022-03-18 17:31 ` Yang Shi
2022-03-24 1:47 ` Theodore Ts'o
2022-03-24 2:46 ` Yang Shi
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