Messages in this thread Patch in this message | | | From | Luis Henriques <> | Subject | [PATCH 3.11 209/233] mm/mempolicy.c: fix mempolicy printing in numa_maps | Date | Fri, 7 Feb 2014 11:47:08 +0000 |
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3.11.10.4 -stable review patch. If anyone has any objections, please let me know.
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From: David Rientjes <rientjes@google.com>
commit 8790c71a18e5d2d93532ae250bcf5eddbba729cd upstream.
As a result of commit 5606e3877ad8 ("mm: numa: Migrate on reference policy"), /proc/<pid>/numa_maps prints the mempolicy for any <pid> as "prefer:N" for the local node, N, of the process reading the file.
This should only be printed when the mempolicy of <pid> is MPOL_PREFERRED for node N.
If the process is actually only using the default mempolicy for local node allocation, make sure "default" is printed as expected.
Signed-off-by: David Rientjes <rientjes@google.com> Reported-by: Robert Lippert <rlippert@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Acked-by: Mel Gorman <mgorman@suse.de> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> [ luis: backported to 3.11: used David Rientjes's backport to 3.10 and 3.12 stable trees. ] Signed-off-by: Luis Henriques <luis.henriques@canonical.com> --- mm/mempolicy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index bfa95cf..bfb3238 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2806,7 +2806,7 @@ int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol) */ VM_BUG_ON(maxlen < strlen("interleave") + strlen("relative") + 16); - if (!pol || pol == &default_policy) + if (!pol || pol == &default_policy || (pol->flags & MPOL_F_MORON)) mode = MPOL_DEFAULT; else mode = pol->mode; -- 1.8.3.2
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