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author | Dave Hansen <dave.hansen@linux.intel.com> | 2013-07-08 14:44:04 -0700 |
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committer | Ingo Molnar <mingo@kernel.org> | 2013-07-12 14:13:04 +0200 |
commit | baf64b85445546a38b44052d71782dfe7531e350 (patch) | |
tree | 123db75d91d993ec405500d609c67844488db216 /arch/powerpc | |
parent | 058ebd0eba3aff16b144eabf4510ed9510e1416e (diff) | |
download | op-kernel-dev-baf64b85445546a38b44052d71782dfe7531e350.zip op-kernel-dev-baf64b85445546a38b44052d71782dfe7531e350.tar.gz |
perf/x86: Fix incorrect use of do_div() in NMI warning
I completely botched understanding the calling conventions of
do_div(). I assumed that do_div() returned the result instead
of realizing that it modifies its argument and returns a
remainder. The side-effect from this would be bogus numbers
for the "msecs" value in the warning messages:
INFO: NMI handler (perf_event_nmi_handler) took too long to run: 0.114 msecs
Note, there was a second fix posted by Stephane Eranian for
a separate patch which I also botched:
http://lkml.kernel.org/r/20130704223010.GA30625@quad
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Dave Hansen <dave@sr71.net>
Link: http://lkml.kernel.org/r/20130708214404.B0B6EA66@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/powerpc')
0 files changed, 0 insertions, 0 deletions