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authorSteven Rostedt <srostedt@redhat.com>2009-01-21 18:45:57 -0500
committerIngo Molnar <mingo@elte.hu>2009-01-22 10:31:58 +0100
commit91a8d07d82cac3aae3ef2ea1aaba5c9c4a934e91 (patch)
treef1d3f093332ecb5e49bff1d1290164237a026475 /kernel
parent1092307d582a7566d23779c304cf86f3075ac5f0 (diff)
downloadlinux-91a8d07d82cac3aae3ef2ea1aaba5c9c4a934e91.tar.bz2
ring-buffer: reset timestamps when ring buffer is reset
Impact: fix bad times of recent resets The ring buffer needs to reset its timestamps when reseting of the buffer, otherwise the timestamps are stale and might be used to calculate times in the buffer causing funny timestamps to appear. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/ring_buffer.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 9c1e73da4e30..bd38c5cfd8ad 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2174,6 +2174,9 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
cpu_buffer->overrun = 0;
cpu_buffer->entries = 0;
+
+ cpu_buffer->write_stamp = 0;
+ cpu_buffer->read_stamp = 0;
}
/**