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oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP

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commit 85bac32c4a
    ring-buffer: only enable ring_buffer_swap_cpu when needed
broke oprofile (at least on s390, but likely on all platforms).

this patch lets oprofile select RING_BUFER_ALLOW_SWAP to make
ring_buffer_swap_cpu usable for oprofile.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
LKML-Reference: <200909162156.49239.borntraeger@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Robert Richter <robert.richter@amd.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Christian Borntraeger 2009-09-16 21:56:49 +02:00 committed by Steven Rostedt
parent b375a11a23
commit 9a5963eb49
1 changed files with 1 additions and 0 deletions
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arch/Kconfig
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@ -9,6 +9,7 @@ config OPROFILE
depends on TRACING_SUPPORT
select TRACING
select RING_BUFFER
select RING_BUFFER_ALLOW_SWAP
help
OProfile is a profiling system capable of profiling the
whole system, include the kernel, kernel modules, libraries,