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Illumos #4730 destroy metaslab group taskq

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4730 metaslab group taskq should be destroyed in metaslab_group_destroy()

Reviewed by: Alex Reece <alex.reece@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Sebastien Roy <sebastien.roy@delphix.com>
Reviewed by: Rich Lowe <richlowe@richlowe.net>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Dan McDonald <danmcd@omniti.com>

References:
  https://www.illumos.org/issues/4730
  https://github.com/illumos/illumos-gate/commit/be08211

Porting notes:

Under ZFSonlinux, one of the effects of not destroying the taskq is that
zdb would never exit (due to the SPL taskq implementation).

Ported-by: Tim Chase <tim@chase2k.com>
Signed-off-by: Prakash Surya <surya1@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #2488
This commit is contained in:
George Wilson 2014-05-19 12:04:04 -08:00 committed by Brian Behlendorf
parent 93cf20764a
commit 3c51c5cb1f
1 changed files with 2 additions and 1 deletions
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3
module/zfs/metaslab.c
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@ -333,7 +333,7 @@ metaslab_group_create(metaslab_class_t *mc, vdev_t *vd)
mg->mg_class = mc;
mg->mg_activation_count = 0;
mg->mg_taskq = taskq_create("metaslab_group_tasksq", metaslab_load_pct,
mg->mg_taskq = taskq_create("metaslab_group_taskq", metaslab_load_pct,
minclsyspri, 10, INT_MAX, TASKQ_THREADS_CPU_PCT);
return (mg);
@ -351,6 +351,7 @@ metaslab_group_destroy(metaslab_group_t *mg)
*/
ASSERT(mg->mg_activation_count <= 0);
taskq_destroy(mg->mg_taskq);
avl_destroy(&mg->mg_metaslab_tree);
mutex_destroy(&mg->mg_lock);
kmem_free(mg, sizeof (metaslab_group_t));