diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2013-06-28 15:26:17 -0700 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2013-06-28 15:26:17 -0700 |
| commit | 9f84b6267ccde1bebe3f9cd40a91716b5ece5e20 (patch) | |
| tree | b51dcf9fb1b7205ed8134ad1169e73719897163d /kernel/trace/ring_buffer.c | |
| parent | 719038de98bc8479b771c582a1e4a1e86079da22 (diff) | |
| parent | 5f8c4218148822fde6eebbeefc34bd0a6061e031 (diff) | |
Merge remote-tracking branch 'origin/x86/fpu' into queue/x86/cpu
Use the union of 3.10 x86/cpu and x86/fpu as baseline.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index b59aea2c48c2..e444ff88f0a4 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -620,6 +620,9 @@ int ring_buffer_poll_wait(struct ring_buffer *buffer, int cpu, if (cpu == RING_BUFFER_ALL_CPUS) work = &buffer->irq_work; else { + if (!cpumask_test_cpu(cpu, buffer->cpumask)) + return -EINVAL; + cpu_buffer = buffer->buffers[cpu]; work = &cpu_buffer->irq_work; } |