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author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-05-05 11:50:23 -0400 |
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committer | Ingo Molnar <mingo@elte.hu> | 2009-05-05 14:18:31 -0400 |
commit | 6de6a7b95705b859b61430fa3afa1403034eb3e6 (patch) | |
tree | 29214ae667a58aa005d0ed13e51c265fa675adf0 /kernel/user_namespace.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/user_namespace.c')
0 files changed, 0 insertions, 0 deletions