[tip:tracing/core] oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP

[tip-bot for Christian Borntraeger]

Commit-ID:  9a5963eb494c8a7be65199e15854551df7d2d939
Gitweb:     http://git.kernel.org/tip/9a5963eb494c8a7be65199e15854551df7d2d939
Author:     Christian Borntraeger <borntraeger@xxxxxxxxxx>
AuthorDate: Wed, 16 Sep 2009 21:56:49 +0200
Committer:  Steven Rostedt <rostedt@xxxxxxxxxxx>
CommitDate: Thu, 17 Sep 2009 15:53:42 -0400

oprofile: fix oprofile regression: select RING_BUFFER_ALLOW_SWAP

commit 85bac32c4a52c592b857f2c360cc5ec93a097d70
    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@xxxxxxxxxx>
LKML-Reference: <200909162156.49239.borntraeger@xxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: Robert Richter <robert.richter@xxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>


---
 arch/Kconfig |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index beea3cc..7f418bb 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -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,
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