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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-29 08:44:40 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-29 08:44:40 -0700
commite64de3b96c1ba3c1de236a4a103ec21234a5849f (patch)
treeb4ed91858a3d353bd72e3be101433ac821759379 /kernel/trace/ring_buffer.c
parentdbfd5ccc057fbefb7247614741efbf96be0258c5 (diff)
parent8f0d8163b50e01f398b14bcd4dc039ac5ab18d64 (diff)
downloadblackbird-op-linux-e64de3b96c1ba3c1de236a4a103ec21234a5849f.tar.gz
blackbird-op-linux-e64de3b96c1ba3c1de236a4a103ec21234a5849f.zip
Merge 3.7-rc3 into char-misc-next
This brings in the various 3.7-rc3 char fixes into char-misc-next. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
-rw-r--r--kernel/trace/ring_buffer.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index b32ed0e385a5..b979426d16c6 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -1567,6 +1567,10 @@ int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size,
put_online_cpus();
} else {
+ /* Make sure this CPU has been intitialized */
+ if (!cpumask_test_cpu(cpu_id, buffer->cpumask))
+ goto out;
+
cpu_buffer = buffer->buffers[cpu_id];
if (nr_pages == cpu_buffer->nr_pages)
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