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Release the second critical section in uma_zfree_arg() slightly earlier.

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It is only needed when removing a full bucket from the per-CPU cache. The
bucket cache (uz_buckets) is protected by the zone mutex and thus the
critical section can be released before inserting into that list.

MFC after:	1 week
This commit is contained in:
Mark Johnston 2016-07-20 01:01:50 +00:00
parent 20c58db95a
commit afa5d70339
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=303059
1 changed files with 2 additions and 3 deletions
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5
sys/vm/uma_core.c
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@ -2744,6 +2744,8 @@ uma_zfree_arg(uma_zone_t zone, void *item, void *udata)
goto zfree_start;
}
cache->uc_freebucket = NULL;
/* We are no longer associated with this CPU. */
critical_exit();
/* Can we throw this on the zone full list? */
if (bucket != NULL) {
@ -2756,9 +2758,6 @@ uma_zfree_arg(uma_zone_t zone, void *item, void *udata)
LIST_INSERT_HEAD(&zone->uz_buckets, bucket, ub_link);
}
/* We are no longer associated with this CPU. */
critical_exit();
/*
* We bump the uz count when the cache size is insufficient to
* handle the working set.