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OpenZFS 6531 - Provide mechanism to artificially limit disk performance

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Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Ported by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>

OpenZFS-issue: https://www.illumos.org/issues/6531
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/97e8130

Porting notes:
- Added new IO delay tracepoints, and moved common ZIO tracepoint macros
  to a new trace_common.h file.
- Used zio_delay_taskq() in place of OpenZFS's timeout_generic() function.
- Updated zinject man page
- Updated zpool_scrub test files
This commit is contained in:
Tony Hutter
2016-05-23 10:41:29 -07:00
committed by Brian Behlendorf
parent 7e945072d1
commit 26ef0cc7db
18 changed files with 681 additions and 121 deletions
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module/zfs/vdev_queue.c
-3
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@@ -753,9 +753,6 @@ vdev_queue_io_done(zio_t *zio)
vdev_queue_t *vq = &zio->io_vd->vdev_queue;
zio_t *nio;
if (zio_injection_enabled)
delay(SEC_TO_TICK(zio_handle_io_delay(zio)));
mutex_enter(&vq->vq_lock);
vdev_queue_pending_remove(vq, zio);