From: Huang Ying <ying.huang@intel.com>
To: Peter Zijlstra <peterz@infradead.org>, Mel Gorman <mgorman@suse.de>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Huang Ying <ying.huang@intel.com>,
"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>,
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
Subject: [PATCH -V6 RESEND 2/3] NOT kernel/man-pages: man2/set_mempolicy.2: Add mode flag MPOL_F_NUMA_BALANCING
Date: Wed, 2 Dec 2020 16:42:33 +0800 [thread overview]
Message-ID: <20201202084234.15797-3-ying.huang@intel.com> (raw)
In-Reply-To: <20201202084234.15797-1-ying.huang@intel.com>
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
---
man2/set_mempolicy.2 | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/man2/set_mempolicy.2 b/man2/set_mempolicy.2
index 68011eecb..3754b3e12 100644
--- a/man2/set_mempolicy.2
+++ b/man2/set_mempolicy.2
@@ -113,6 +113,12 @@ 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)"
+Enable the Linux kernel NUMA balancing for the task if it is supported
+by kernel.
+If the flag isn't supported by Linux kernel, return -1 and errno is
+set to EINVAL.
.PP
.I nodemask
points to a bit mask of node IDs that contains up to
@@ -293,6 +299,9 @@ 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.
.TP
.B ENOMEM
Insufficient kernel memory was available.
--
2.29.2
next prev parent reply other threads:[~2020-12-02 8:42 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 8:42 [PATCH -V6 RESEND 0/3] numa balancing: Migrate on fault among multiple bound nodes Huang Ying
2020-12-02 8:42 ` [PATCH -V6 RESEND 1/3] " Huang Ying
2020-12-02 11:40 ` Mel Gorman
2020-12-03 10:25 ` Peter Zijlstra
2020-12-03 10:53 ` Mel Gorman
2020-12-04 9:19 ` Huang, Ying
2020-12-10 8:21 ` Huang, Ying
2020-12-02 8:42 ` Huang Ying [this message]
2020-12-02 11:43 ` [PATCH -V6 RESEND 2/3] NOT kernel/man-pages: man2/set_mempolicy.2: Add mode flag MPOL_F_NUMA_BALANCING Mel Gorman
2020-12-03 1:49 ` Huang, Ying
2020-12-03 9:37 ` Mel Gorman
2020-12-02 12:33 ` Alejandro Colomar (mailing lists; readonly)
2020-12-08 8:13 ` Huang, Ying
2020-12-18 10:21 ` Alejandro Colomar (mailing lists; readonly)
2020-12-21 1:31 ` Huang, Ying
2020-12-02 8:42 ` [PATCH -V6 RESEND 3/3] NOT kernel/numactl: Support to enable Linux kernel NUMA balancing Huang Ying
2020-12-02 11:45 ` Mel Gorman
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