From: Chih-En Lin <shiyn.lin@gmail.com>
To: Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org
Cc: Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Juri Lelli <juri.lelli@redhat.com>,
Vincent Guittot <vincent.guittot@linaro.org>,
Dietmar Eggemann <dietmar.eggemann@arm.com>,
Steven Rostedt <rostedt@goodmis.org>,
Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
Daniel Bristot de Oliveira <bristot@redhat.com>,
Christian Brauner <brauner@kernel.org>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
Vlastimil Babka <vbabka@suse.cz>,
William Kucharski <william.kucharski@oracle.com>,
John Hubbard <jhubbard@nvidia.com>,
Yunsheng Lin <linyunsheng@huawei.com>,
Arnd Bergmann <arnd@arndb.de>,
Suren Baghdasaryan <surenb@google.com>,
Chih-En Lin <shiyn.lin@gmail.com>,
Colin Cross <ccross@google.com>, Feng Tang <feng.tang@intel.com>,
"Eric W. Biederman" <ebiederm@xmission.com>,
Mike Rapoport <rppt@kernel.org>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Anshuman Khandual <anshuman.khandual@arm.com>,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>,
Daniel Axtens <dja@axtens.net>,
Jonathan Marek <jonathan@marek.ca>,
Christophe Leroy <christophe.leroy@csgroup.eu>,
Pasha Tatashin <pasha.tatashin@soleen.com>,
Peter Xu <peterx@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andy Lutomirski <luto@kernel.org>,
Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
Fenghua Yu <fenghua.yu@intel.com>,
David Hildenbrand <david@redhat.com>,
linux-kernel@vger.kernel.org, Kaiyang Zhao <zhao776@purdue.edu>,
Huichun Feng <foxhoundsk.tw@gmail.com>,
Jim Huang <jserv.tw@gmail.com>
Subject: [RFC PATCH 1/6] mm: Add a new mm flag for Copy-On-Write PTE table
Date: Fri, 20 May 2022 02:31:22 +0800 [thread overview]
Message-ID: <20220519183127.3909598-2-shiyn.lin@gmail.com> (raw)
In-Reply-To: <20220519183127.3909598-1-shiyn.lin@gmail.com>
Add MMF_COW_PGTABLE flag to prepare the subsequent implementation of
copy-on-write for the page table.
Signed-off-by: Chih-En Lin <shiyn.lin@gmail.com>
---
include/linux/sched/coredump.h | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h
index 4d9e3a656875..19e9f2b71398 100644
--- a/include/linux/sched/coredump.h
+++ b/include/linux/sched/coredump.h
@@ -83,7 +83,10 @@ static inline int get_dumpable(struct mm_struct *mm)
#define MMF_HAS_PINNED 28 /* FOLL_PIN has run, never cleared */
#define MMF_DISABLE_THP_MASK (1 << MMF_DISABLE_THP)
+#define MMF_COW_PGTABLE 29
+#define MMF_COW_PGTABLE_MASK (1 << MMF_COW_PGTABLE)
+
#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\
- MMF_DISABLE_THP_MASK)
+ MMF_DISABLE_THP_MASK | MMF_COW_PGTABLE_MASK)
#endif /* _LINUX_SCHED_COREDUMP_H */
--
2.36.1
next prev parent reply other threads:[~2022-05-19 18:30 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-19 18:31 [RFC PATCH 0/6] Introduce Copy-On-Write to Page Table Chih-En Lin
2022-05-19 18:31 ` Chih-En Lin [this message]
2022-05-19 18:31 ` [RFC PATCH 2/6] mm: clone3: Add CLONE_COW_PGTABLE flag Chih-En Lin
2022-05-20 14:13 ` Christophe Leroy
2022-05-21 3:50 ` Chih-En Lin
2022-05-19 18:31 ` [RFC PATCH 3/6] mm, pgtable: Add ownership for the PTE table Chih-En Lin
2022-05-19 23:07 ` kernel test robot
2022-05-20 0:08 ` kernel test robot
2022-05-20 14:15 ` Christophe Leroy
2022-05-21 4:03 ` Chih-En Lin
2022-05-21 4:02 ` Matthew Wilcox
2022-05-21 5:01 ` Chih-En Lin
2022-05-19 18:31 ` [RFC PATCH 4/6] mm: Add COW PTE fallback function Chih-En Lin
2022-05-20 0:20 ` kernel test robot
2022-05-20 14:21 ` Christophe Leroy
2022-05-21 4:15 ` Chih-En Lin
2022-05-19 18:31 ` [RFC PATCH 5/6] mm, pgtable: Add the reference counter for COW PTE Chih-En Lin
2022-05-20 14:30 ` Christophe Leroy
2022-05-21 4:22 ` Chih-En Lin
2022-05-21 4:08 ` Matthew Wilcox
2022-05-21 5:10 ` Chih-En Lin
2022-05-19 18:31 ` [RFC PATCH 6/6] mm: Expand Copy-On-Write to PTE table Chih-En Lin
2022-05-20 14:49 ` Christophe Leroy
2022-05-21 4:38 ` Chih-En Lin
2022-05-21 8:59 ` [External] [RFC PATCH 0/6] Introduce Copy-On-Write to Page Table Qi Zheng
2022-05-21 19:08 ` Chih-En Lin
2022-05-21 16:07 ` David Hildenbrand
2022-05-21 18:50 ` Chih-En Lin
2022-05-21 20:28 ` David Hildenbrand
2022-05-21 20:12 ` Matthew Wilcox
2022-05-21 20:22 ` David Hildenbrand
2022-05-21 22:19 ` Andy Lutomirski
2022-05-22 0:31 ` Matthew Wilcox
2022-05-22 15:20 ` Andy Lutomirski
2022-05-22 19:40 ` Matthew Wilcox
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