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Update zio.c

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The cv_wait_io is used to account io time instead of cv_wait.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #1566
This commit is contained in:
Shen Yan 2013-07-03 10:00:16 +08:00 committed by Brian Behlendorf
parent e77aa730bc
commit 8e07b99b2f
1 changed files with 1 additions and 1 deletions
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module/zfs/zio.c
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@ -1248,7 +1248,7 @@ zio_interrupt(zio_t *zio)
* vdev-level caching or aggregation; (5) the I/O is deferred * vdev-level caching or aggregation; (5) the I/O is deferred
* due to vdev-level queueing; (6) the I/O is handed off to * due to vdev-level queueing; (6) the I/O is handed off to
* another thread. In all cases, the pipeline stops whenever * another thread. In all cases, the pipeline stops whenever
* there's no CPU work; it never burns a thread in cv_wait(). * there's no CPU work; it never burns a thread in cv_wait_io().
* *
* There's no locking on io_stage because there's no legitimate way * There's no locking on io_stage because there's no legitimate way
* for multiple threads to be attempting to process the same I/O. * for multiple threads to be attempting to process the same I/O.