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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-06-30 15:23:59 +1000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2011-06-30 15:23:59 +1000
commit6da49a292534d31ca391928ea97f8225774dc1e0 (patch)
tree060c5f5f40dceb10d4528763bc7fc1ccc88210d9 /arch/s390/oprofile/init.c
parent17bdc6c0e979ae61879806e4dd93ec3b169d0931 (diff)
parentca56a95eedcc95f8fea7b49c87565cd961d74fe2 (diff)
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Merge remote branch 'origin/master' into next
Diffstat (limited to 'arch/s390/oprofile/init.c')
-rw-r--r--arch/s390/oprofile/init.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/s390/oprofile/init.c b/arch/s390/oprofile/init.c
index 5995e9b..0e358c2 100644
--- a/arch/s390/oprofile/init.c
+++ b/arch/s390/oprofile/init.c
@@ -25,7 +25,7 @@ extern void s390_backtrace(struct pt_regs * const regs, unsigned int depth);
#include "hwsampler.h"
-#define DEFAULT_INTERVAL 4096
+#define DEFAULT_INTERVAL 4127518
#define DEFAULT_SDBT_BLOCKS 1
#define DEFAULT_SDB_BLOCKS 511
@@ -151,6 +151,12 @@ static int oprofile_hwsampler_init(struct oprofile_operations *ops)
if (oprofile_max_interval == 0)
return -ENODEV;
+ /* The initial value should be sane */
+ if (oprofile_hw_interval < oprofile_min_interval)
+ oprofile_hw_interval = oprofile_min_interval;
+ if (oprofile_hw_interval > oprofile_max_interval)
+ oprofile_hw_interval = oprofile_max_interval;
+
if (oprofile_timer_init(ops))
return -ENODEV;