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| author | jhb <jhb@FreeBSD.org> | 2003-07-02 16:14:09 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2003-07-02 16:14:09 +0000 |
| commit | 58598b39f8391903edf076ddb2ab3edbaf9b31bc (patch) | |
| tree | bc1fddb51548caeb15727f95b183dcd1df563597 /sbin | |
| parent | 17958a749f60b50092d0ae5d6171bdc924cbed02 (diff) | |
| download | FreeBSD-src-58598b39f8391903edf076ddb2ab3edbaf9b31bc.zip FreeBSD-src-58598b39f8391903edf076ddb2ab3edbaf9b31bc.tar.gz | |
- Add comments about the maintenance of the per-thread list of contested
locks held by each thread.
- Fix a bug in the original BSD/OS code where a contested lock was not
properly handed off from the old thread to the new thread when a
contested lock with more than one blocked thread was transferred from
one thread to another.
- Don't use an atomic operation to write the MTX_CONTESTED value to
mtx_lock in the aforementioned special case. The memory barriers and
exclusion provided by sched_lock are sufficient.
Spotted by: alc (2)
Diffstat (limited to 'sbin')
0 files changed, 0 insertions, 0 deletions
