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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-05-05 17:50:23 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-05 20:18:31 +0200 |
| commit | 6de6a7b95705b859b61430fa3afa1403034eb3e6 (patch) | |
| tree | 29214ae667a58aa005d0ed13e51c265fa675adf0 /kernel/sysctl.c | |
| parent | c66de4a5be7913247bd83d79168f8e4420c9cfbc (diff) | |
perf_counter: add ioctl(PERF_COUNTER_IOC_RESET)
Provide a way to reset an existing counter - this eases PAPI
libraries around perfcounters.
Similar to read() it doesn't collapse pending child counters.
[ Impact: new perfcounter fd ioctl method to reset counters ]
Suggested-by: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <20090505155437.022272933@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sysctl.c')
0 files changed, 0 insertions, 0 deletions