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Illumos 5981 - Deadlock in dmu_objset_find_dp

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5981 Deadlock in dmu_objset_find_dp
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Approved by: Robert Mustacchi <rm@joyent.com>

References:
  https://www.illumos.org/issues/5981
  https://github.com/illumos/illumos-gate/commit/1d3f896

Ported-by: kernelOfTruth kerneloftruth@gmail.com
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #3553
This commit is contained in:
Arne Jansen
2015-07-02 17:58:17 +02:00
committed by Brian Behlendorf
parent 71e2fe41be
commit 5e8cd5d17f
5 changed files with 40 additions and 4 deletions
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module/zfs/dsl_pool.c
+7
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@@ -1050,6 +1050,13 @@ dsl_pool_config_enter(dsl_pool_t *dp, void *tag)
rrw_enter(&dp->dp_config_rwlock, RW_READER, tag);
}
void
dsl_pool_config_enter_prio(dsl_pool_t *dp, void *tag)
{
ASSERT(!rrw_held(&dp->dp_config_rwlock, RW_READER));
rrw_enter_read_prio(&dp->dp_config_rwlock, tag);
}
void
dsl_pool_config_exit(dsl_pool_t *dp, void *tag)
{