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| author | Ingo Molnar <mingo@elte.hu> | 2008-12-09 05:40:46 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-12-09 13:28:48 -0500 |
| commit | 7e2ae34749edf19e76e594b9c4b2cdde1066afc5 (patch) | |
| tree | 165879c7b508cac9b3238750bb8a3786e018b352 /kernel/kthread.c | |
| parent | 4c59e4676dc95f6f58a2cff5390b2699fa5b5549 (diff) | |
perfcounters, x86: simplify disable/enable of counters
Impact: fix spurious missed counter wakeups
In the case of NMI events, close a race window that can occur if an NMI
hits counter code that temporarily disables+enables a counter, and the NMI
leaks into the disabled section.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/kthread.c')
0 files changed, 0 insertions, 0 deletions