diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2013-11-06 18:47:57 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-11-13 13:33:52 +0100 |
| commit | 5eca82a9ac2c961cfbd26a4b6f43e6e3747a71dd (patch) | |
| tree | c63a3495a562c32b447bd4dec093eca98e9a584b /kernel/up.c | |
| parent | 46a73e8a1c1720f7713b5e2df68e9dd272015b5d (diff) | |
sched/numa: Cure update_numa_stats() vs. hotplug
Because we're completely unserialized against hotplug its well
possible to try and generate numa stats for an offlined node.
Bail out early (and avoid a /0) in this case. The resulting stats are
all 0 which should result in an undesirable balance target -- not to
mention that actually trying to migrate to an offline CPU will fail.
Reported-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/n/tip-orja0qylcvyhxfsuebcyL5sI@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/up.c')
0 files changed, 0 insertions, 0 deletions