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Subject[PATCH 0/1] man/set_mempolicy.2,mbind.2: add MPOL_LOCAL NUMA memory policy documentation
Date
The MPOL_LOCAL mode has been implemented by
Peter Zijlstra <a.p.zijlstra@chello.nl>
(commit: 479e2802d09f1e18a97262c4c6f8f17ae5884bd8).
Add the documentation for this mode.

Signed-off-by: Piotr Kwapulinski <kwapulinski.piotr@gmail.com>
---
man2/mbind.2 | 16 ++++++++++++----
man2/set_mempolicy.2 | 11 ++++++++++-
2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/man2/mbind.2 b/man2/mbind.2
index 3ea24f6..b184f4e 100644
--- a/man2/mbind.2
+++ b/man2/mbind.2
@@ -130,8 +130,9 @@ argument must specify one of
.BR MPOL_DEFAULT ,
.BR MPOL_BIND ,
.BR MPOL_INTERLEAVE ,
+.BR MPOL_PREFERRED ,
or
-.BR MPOL_PREFERRED .
+.BR MPOL_LOCAL .
All policy modes except
.B MPOL_DEFAULT
require the caller to specify via the
@@ -258,9 +259,14 @@ and
.I maxnode
arguments specify the empty set, then the memory is allocated on
the node of the CPU that triggered the allocation.
-This is the only way to specify "local allocation" for a
-range of memory via
-.BR mbind ().
+
+.B MPOL_LOCAL
+specifies the "local allocation", the memory is allocated on
+the node of the CPU that triggered the allocation. The
+.I nodemask
+and
+.I maxnode
+arguments must specify the empty set.

If
.B MPOL_MF_STRICT
@@ -440,6 +446,8 @@ To select explicit "local allocation" for a memory range,
specify a
.I mode
of
+.B MPOL_LOCAL
+or
.B MPOL_PREFERRED
with an empty set of nodes.
This method will work for
diff --git a/man2/set_mempolicy.2 b/man2/set_mempolicy.2
index 1f02037..5755322 100644
--- a/man2/set_mempolicy.2
+++ b/man2/set_mempolicy.2
@@ -79,8 +79,9 @@ argument must specify one of
.BR MPOL_DEFAULT ,
.BR MPOL_BIND ,
.BR MPOL_INTERLEAVE ,
+.BR MPOL_PREFERRED ,
or
-.BR MPOL_PREFERRED .
+.BR MPOL_LOCAL .
All modes except
.B MPOL_DEFAULT
require the caller to specify via the
@@ -211,6 +212,14 @@ arguments specify the empty set, then the policy
specifies "local allocation"
(like the system default policy discussed above).

+.B MPOL_LOCAL
+specifies the "local allocation" (like the system default policy
+discussed above). The
+.I nodemask
+and
+.I maxnode
+arguments must specify the empty set.
+
The thread memory policy is preserved across an
.BR execve (2),
and is inherited by child threads created using
--
2.10.0
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