[tip:perfcounters/core] perf_counter: include missing header

[Tim Blechmann]

Commit-ID:  c04b033bfe196bb4cac45e46d20d3affbaebf23b
Gitweb:     http://git.kernel.org/tip/c04b033bfe196bb4cac45e46d20d3affbaebf23b
Author:     Tim Blechmann <tim@xxxxxxxxxx>
AuthorDate: Sat, 14 Mar 2009 14:29:25 +0100
Commit:     Ingo Molnar <mingo@xxxxxxx>
CommitDate: Sun, 15 Mar 2009 07:09:22 +0100

perf_counter: include missing header

Impact: build fix

In order to compile a kernel with performance counter patches,
<asm/irq_regs.h> has to be included to provide the declaration of
struct pt_regs *get_irq_regs(void);

[ This bug was masked by unrelated x86 header file changes in the
  x86 tree, but occurs in the tip:perfcounters/core standalone
  tree. ]

Signed-off-by: Tim Blechmann <tim@xxxxxxxxxx>
LKML-Reference: <20090314142925.49c29c17@thinkpad>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>


---
 kernel/perf_counter.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/perf_counter.c b/kernel/perf_counter.c
index d6cc222..0018c5e 100644
--- a/kernel/perf_counter.c
+++ b/kernel/perf_counter.c
@@ -24,6 +24,8 @@
 #include <linux/vmstat.h>
 #include <linux/rculist.h>
 
+#include <asm/irq_regs.h>
+
 /*
  * Each CPU has a list of per CPU counters:
  */
--
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