diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-16 20:48:13 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-16 20:49:06 -0500 |
| commit | 85910c202bb869edd2bb9a6c217a658c83f06f1e (patch) | |
| tree | fcf4bf1ba2ebfcb6dec395a10ed6b33e7d33217e /kernel/trace/ring_buffer.c | |
| parent | f7200d4c504a385b1b70f3bab379f99745f7ef6a (diff) | |
| parent | 517ffce4e1a03aea979fe3a18a3dd1761a24fafb (diff) | |
Merge commit '517ffce4e1a03aea979fe3a18a3dd1761a24fafb' into arch-sparc
Backmerge from the point in mainline where a trivial conflict had been
introduced (arch/sparc/kernel/sys_sparc_64.c had grown sys_kern_features()
right after where kernel_execve() used to be)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/trace/ring_buffer.c')
| -rw-r--r-- | kernel/trace/ring_buffer.c | 4 |
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) |