ftrace: change buffers to producer consumer

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This patch changes the way the CPU trace buffers are handled.
Instead of always starting from the trace page head, the logic
is changed to a producer consumer logic. This allows for the
buffers to be drained while they are alive.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Steven Rostedt 2008-05-12 21:20:45 +02:00 • committed by Thomas Gleixner

parent 1d4db00a5e

commit 93a588f459

2 changed files with 65 additions and 44 deletions

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103

kernel/trace/trace.c

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6

kernel/trace/trace.h

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