From: Anshuman Khandual <khandual@linux.vnet.ibm.com>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>, Zi Yan <zi.yan@sent.com>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"dnellans@nvidia.com" <dnellans@nvidia.com>,
"apopple@au1.ibm.com" <apopple@au1.ibm.com>,
"paulmck@linux.vnet.ibm.com" <paulmck@linux.vnet.ibm.com>,
"khandual@linux.vnet.ibm.com" <khandual@linux.vnet.ibm.com>,
"zi.yan@cs.rutgers.edu" <zi.yan@cs.rutgers.edu>
Subject: Re: [RFC PATCH 04/14] mm/migrate: Add new migrate mode MIGRATE_MT
Date: Thu, 23 Feb 2017 13:24:19 +0530 [thread overview]
Message-ID: <68afbd19-32c7-9b36-a744-866f6fa29ef3@linux.vnet.ibm.com> (raw)
In-Reply-To: <20170223065429.GB7336@hori1.linux.bs1.fc.nec.co.jp>
On 02/23/2017 12:24 PM, Naoya Horiguchi wrote:
> On Fri, Feb 17, 2017 at 10:05:41AM -0500, Zi Yan wrote:
>> From: Zi Yan <ziy@nvidia.com>
>>
>> This change adds a new migration mode called MIGRATE_MT to enable multi
>> threaded page copy implementation inside copy_huge_page() function by
>> selectively calling copy_pages_mthread() when requested. But it still
>> falls back using the regular page copy mechanism instead the previous
>> multi threaded attempt fails. It also attempts multi threaded copy for
>> regular pages.
>>
>> Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu>
>> Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
>> ---
>> include/linux/migrate_mode.h | 1 +
>> mm/migrate.c | 25 ++++++++++++++++++-------
>> 2 files changed, 19 insertions(+), 7 deletions(-)
>>
>> diff --git a/include/linux/migrate_mode.h b/include/linux/migrate_mode.h
>> index 89c170060e5b..d344ad60f499 100644
>> --- a/include/linux/migrate_mode.h
>> +++ b/include/linux/migrate_mode.h
>> @@ -12,6 +12,7 @@ enum migrate_mode {
>> MIGRATE_SYNC_LIGHT = 1<<1,
>> MIGRATE_SYNC = 1<<2,
>> MIGRATE_ST = 1<<3,
>> + MIGRATE_MT = 1<<4,
>
> Could you update the comment above this definition to cover the new flags.
Sure, will do.
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next prev parent reply other threads:[~2017-02-23 7:55 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-17 15:05 [RFC PATCH 00/14] Accelerating page migrations Zi Yan
2017-02-17 15:05 ` [RFC PATCH 01/14] mm/migrate: Add new mode parameter to migrate_page_copy() function Zi Yan
2017-02-17 15:05 ` [RFC PATCH 02/14] mm/migrate: Make migrate_mode types non-exclussive Zi Yan
2017-02-17 15:05 ` [RFC PATCH 03/14] mm/migrate: Add copy_pages_mthread function Zi Yan
2017-02-23 6:06 ` Naoya Horiguchi
2017-02-23 7:50 ` Anshuman Khandual
2017-02-23 8:02 ` Naoya Horiguchi
2017-03-09 5:35 ` Anshuman Khandual
2017-02-17 15:05 ` [RFC PATCH 04/14] mm/migrate: Add new migrate mode MIGRATE_MT Zi Yan
2017-02-23 6:54 ` Naoya Horiguchi
2017-02-23 7:54 ` Anshuman Khandual [this message]
2017-02-17 15:05 ` [RFC PATCH 05/14] mm/migrate: Add new migration flag MPOL_MF_MOVE_MT for syscalls Zi Yan
2017-02-17 15:05 ` [RFC PATCH 06/14] sysctl: Add global tunable mt_page_copy Zi Yan
2017-02-17 15:05 ` [RFC PATCH 07/14] migrate: Add copy_page_lists_mthread() function Zi Yan
2017-02-23 8:54 ` Naoya Horiguchi
2017-03-09 13:02 ` Anshuman Khandual
2017-02-17 15:05 ` [RFC PATCH 08/14] mm: migrate: Add concurrent page migration into move_pages syscall Zi Yan
2017-02-24 8:25 ` Naoya Horiguchi
2017-02-24 15:05 ` Zi Yan
2017-02-17 15:05 ` [RFC PATCH 09/14] mm: migrate: Add exchange_page_mthread() and exchange_page_lists_mthread() to exchange two pages or two page lists Zi Yan
2017-02-17 15:05 ` [RFC PATCH 10/14] mm: Add exchange_pages and exchange_pages_concur functions to exchange two lists of pages instead of two migrate_pages() Zi Yan
2017-02-17 15:05 ` [RFC PATCH 11/14] mm: migrate: Add exchange_pages syscall to exchange two page lists Zi Yan
2017-02-17 15:05 ` [RFC PATCH 12/14] migrate: Add copy_page_dma to use DMA Engine to copy pages Zi Yan
2017-02-17 15:05 ` [RFC PATCH 13/14] mm: migrate: Add copy_page_dma into migrate_page_copy Zi Yan
2017-02-17 15:05 ` [RFC PATCH 14/14] mm: Add copy_page_lists_dma_always to support copy a list of pages Zi Yan
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