Fix a lock order reversal in uma_zdestroy. The uma_mtx needs to be held across
calls to zone_drain(). Noticed by: scottl
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89b2e0c349
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17b9cc4941
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=99472
@ -1123,15 +1123,15 @@ zone_dtor(void *arg, int size, void *udata)
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zone = (uma_zone_t)arg;
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mtx_lock(&uma_mtx);
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LIST_REMOVE(zone, uz_link);
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mtx_unlock(&uma_mtx);
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ZONE_LOCK(zone);
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zone->uz_wssize = 0;
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ZONE_UNLOCK(zone);
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mtx_lock(&uma_mtx);
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LIST_REMOVE(zone, uz_link);
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zone_drain(zone);
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mtx_unlock(&uma_mtx);
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ZONE_LOCK(zone);
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if (zone->uz_free != 0)
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printf("Zone %s was not empty. Lost %d pages of memory.\n",
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