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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:49:14 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-12-20 18:49:14 -0500 |
| commit | 21e89c0c48bb799beb09181740796fc80c9676e2 (patch) | |
| tree | bd5aef34a980f189ad41c75e881d225bc854bf44 /kernel/sched/fair.c | |
| parent | b911a6bdeef5848c468597d040e3407e0aee04ce (diff) | |
| parent | 91c7fbbf63f33c77d8d28de624834a21888842bb (diff) | |
Merge branch 'fscache' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs into for-linus
Diffstat (limited to 'kernel/sched/fair.c')
| -rw-r--r-- | kernel/sched/fair.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 4603d6cb9e25..5eea8707234a 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -793,8 +793,11 @@ unsigned int sysctl_numa_balancing_scan_delay = 1000; static void task_numa_placement(struct task_struct *p) { - int seq = ACCESS_ONCE(p->mm->numa_scan_seq); + int seq; + if (!p->mm) /* for example, ksmd faulting in a user's mm */ + return; + seq = ACCESS_ONCE(p->mm->numa_scan_seq); if (p->numa_scan_seq == seq) return; p->numa_scan_seq = seq; |