From: Stefan Roesch <shr@devkernel.io>
To: kernel-team@fb.com
Cc: shr@devkernel.io, linux-mm@kvack.org, riel@surriel.com,
mhocko@suse.com, david@redhat.com,
linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org,
akpm@linux-foundation.org
Subject: [RFC PATCH v2 01/19] mm: add new flag to enable ksm per process
Date: Fri, 10 Feb 2023 13:50:05 -0800 [thread overview]
Message-ID: <20230210215023.2740545-2-shr@devkernel.io> (raw)
In-Reply-To: <20230210215023.2740545-1-shr@devkernel.io>
This introduces the new flag MMF_VM_MERGE_ANY flag. When this flag is
set, kernel samepage merging (ksm) gets enabled for all vma's of a
process.
Signed-off-by: Stefan Roesch <shr@devkernel.io>
---
include/linux/sched/coredump.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/include/linux/sched/coredump.h b/include/linux/sched/coredump.h
index 0e17ae7fbfd3..0ee96ea7a0e9 100644
--- a/include/linux/sched/coredump.h
+++ b/include/linux/sched/coredump.h
@@ -90,4 +90,5 @@ static inline int get_dumpable(struct mm_struct *mm)
#define MMF_INIT_MASK (MMF_DUMPABLE_MASK | MMF_DUMP_FILTER_MASK |\
MMF_DISABLE_THP_MASK | MMF_HAS_MDWE_MASK)
+#define MMF_VM_MERGE_ANY 29
#endif /* _LINUX_SCHED_COREDUMP_H */
--
2.30.2
next prev parent reply other threads:[~2023-02-10 21:50 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-10 21:50 [RFC PATCH v2 00/19] mm: process/cgroup ksm support Stefan Roesch
2023-02-10 21:50 ` Stefan Roesch [this message]
2023-02-10 21:50 ` [RFC PATCH v2 02/19] mm: add flag to __ksm_enter Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 03/19] mm: add flag to __ksm_exit call Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 04/19] mm: invoke madvise for all vmas in scan_get_next_rmap_item Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 05/19] mm: support disabling of ksm for a process Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 06/19] mm: add new prctl option to get and set " Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 07/19] mm: split off pages_volatile function Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 08/19] mm: expose general_profit metric Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 09/19] docs: document general_profit sysfs knob Stefan Roesch
2023-02-11 8:17 ` Bagas Sanjaya
2023-02-15 23:00 ` Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 10/19] mm: calculate ksm process profit metric Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 11/19] mm: add ksm_merge_type() function Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 12/19] mm: expose ksm process profit metric in ksm_stat Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 13/19] mm: expose ksm merge type " Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 14/19] docs: document new procfs ksm knobs Stefan Roesch
2023-02-11 8:18 ` Bagas Sanjaya
2023-02-10 21:50 ` [RFC PATCH v2 15/19] tools: add new prctl flags to prctl in tools dir Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 16/19] selftests/vm: add KSM prctl merge test Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 17/19] selftests/vm: add KSM get merge type test Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 18/19] selftests/vm: add KSM fork test Stefan Roesch
2023-02-10 21:50 ` [RFC PATCH v2 19/19] selftests/vm: add two functions for debugging merge outcome Stefan Roesch
2023-02-10 23:23 ` [RFC PATCH v2 00/19] mm: process/cgroup ksm support Matthew Wilcox
2023-02-11 2:41 ` Rik van Riel
2023-02-21 16:10 ` Johannes Weiner
2023-02-21 17:59 ` Stefan Roesch
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