| commit | 0db1a7bc00216a981d0b7056627ad8682f4f0636 | |
| author | Cyrill Gorcunov <gorcunov@openvz.org> | |
| Mon, 17 May 2010 08:13:04 +0000 (17 16:13 +0800) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Tue, 18 May 2010 06:25:34 +0000 (18 08:25 +0200) | ||
| tree | ad4036506ee871280a5e83eae757e2d7316462e2 | treesnapshot (tar.gz zip) |
| parent | 32ec6acfdcc066313261d0fbe6a966cb1804a7cd | commitdiff |
perf, x86: P4 PMU -- handle unflagged events
It might happen that an event can overflow without
the proper overflow flag set. Check the sign bit in
the raw counter value to solve this problem.
Tested-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: fweisbec@gmail.com
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1274083984.6540.15.camel@minggr.sh.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
It might happen that an event can overflow without
the proper overflow flag set. Check the sign bit in
the raw counter value to solve this problem.
Tested-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: fweisbec@gmail.com
Cc: Cyrill Gorcunov <gorcunov@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <1274083984.6540.15.camel@minggr.sh.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| arch/x86/kernel/cpu/perf_event_p4.c | diffblobblamehistory |