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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2009-05-05 17:50:25 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-05-05 20:18:32 +0200 |
| commit | 22c1558e51c210787c6cf75d8905246fc91ec030 (patch) | |
| tree | 40949ad88dcba74df009437a3270fda4e938cb3f /Documentation/lockdep-design.txt | |
| parent | c5078f78b455fbf67ea71442c7e7ca8acf9ff095 (diff) | |
perf_counter: fix the output lock
Use -1 instead of 0 as unlocked, since 0 is a valid cpu number.
( This is not an issue right now but will be once we allow multiple
counters to output to the same mmap area. )
[ Impact: prepare code for multi-counter profile output ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
LKML-Reference: <20090505155437.232686598@chello.nl>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'Documentation/lockdep-design.txt')
0 files changed, 0 insertions, 0 deletions