From: "Huang\, Ying" <ying.huang@intel.com>
To: "Alejandro Colomar \(man-pages\)" <alx.manpages@gmail.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
"Matthew Wilcox \(Oracle\)" <willy@infradead.org>,
Rafael Aquini <aquini@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@redhat.com>, Rik van Riel <riel@surriel.com>,
Peter Zijlstra <peterz@infradead.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Dave Hansen <dave.hansen@intel.com>,
Andi Kleen <ak@linux.intel.com>, Michal Hocko <mhocko@suse.com>,
David Rientjes <rientjes@google.com>,
linux-api@vger.kernel.org, Mel Gorman <mgorman@suse.de>
Subject: Re: [PATCH -V7 2/3] NOT kernel/man2/set_mempolicy.2: Add mode flag MPOL_F_NUMA_BALANCING
Date: Mon, 07 Dec 2020 08:48:57 +0800 [thread overview]
Message-ID: <87v9demoee.fsf@yhuang-dev.intel.com> (raw)
In-Reply-To: <4c10125a-cbe6-7dff-3b57-c3480e913c5f@gmail.com> (Alejandro Colomar's message of "Fri, 4 Dec 2020 14:25:20 +0100")
Hi, Alex,
"Alejandro Colomar (man-pages)" <alx.manpages@gmail.com> writes:
> Hi Huang Ying,
>
> Please, see a few fixes below.
>
> Thanks,
>
> Alex
>
> On 12/4/20 10:15 AM, Huang Ying wrote:
>> Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
>> ---
>> man2/set_mempolicy.2 | 14 ++++++++++++++
>> 1 file changed, 14 insertions(+)
>>
>> diff --git a/man2/set_mempolicy.2 b/man2/set_mempolicy.2
>> index 68011eecb..fb2e6fd96 100644
>> --- a/man2/set_mempolicy.2
>> +++ b/man2/set_mempolicy.2
>> @@ -113,6 +113,15 @@ A nonempty
>> .I nodemask
>> specifies node IDs that are relative to the set of
>> node IDs allowed by the process's current cpuset.
>> +.TP
>> +.BR MPOL_F_NUMA_BALANCING " (since Linux 5.11)"
>> +When
>> +.I mode
>> +is MPOL_BIND, enable the Linux kernel NUMA balancing for the task if
>
> .B MPOL_BIND
>
>> +it is supported by kernel.
>> +If the flag isn't supported by Linux kernel, or is used with
>> +.I mode> +other than MPOL_BIND, return -1 and errno is set to EINVAL.
>
> .BR MPOL_BIND ,
>
> A minus sign should be escaped:
> \-1
> See man-pages(7)::STYLE GUIDE::Generating optimal glyphs)
>
> .I errno
> .BR EINVAL .
>
>> .PP
>> .I nodemask
>> points to a bit mask of node IDs that contains up to
>> @@ -293,6 +302,11 @@ argument specified both
>> .B MPOL_F_STATIC_NODES
>> and
>> .BR MPOL_F_RELATIVE_NODES .
>> +Or, the
>> +.B MPOL_F_NUMA_BALANCING
>> +isn't supported by the Linux kernel, or is used with
>> +.I mode
>> +other than MPOL_BIND.
>
> .BR MPOL_BIND .
>
>> .TP
>> .B ENOMEM
>> Insufficient kernel memory was available.
>>
Thanks a lot for your comments! Will change them in the next version.
Best Regards,
Huang, Ying
next prev parent reply other threads:[~2020-12-07 0:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-04 9:15 [PATCH -V7 0/3] numa balancing: Migrate on fault among multiple bound nodes Huang Ying
2020-12-04 9:15 ` [PATCH -V7 1/3] " Huang Ying
2020-12-04 9:15 ` [PATCH -V7 2/3] NOT kernel/man2/set_mempolicy.2: Add mode flag MPOL_F_NUMA_BALANCING Huang Ying
2020-12-04 13:25 ` Alejandro Colomar (man-pages)
2020-12-07 0:48 ` Huang, Ying [this message]
2020-12-04 9:15 ` [PATCH -V7 3/3] NOT kernel/numactl: Support to enable Linux kernel NUMA balancing Huang Ying
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