Author: mm
Date: Sun May 23 10:08:05 2010
New Revision: 208442
URL: http://svn.freebsd.org/changeset/base/208442

Log:
  Fix mutex_exit misorder that can cause a kernel panic.
  
  OpenSolaris onnv revision:    8667:5c308a17eb7c
  
  Approved by:  delphij (mentor)
  Obtained from:        OpenSolaris (Bug ID 6795440)
  MFC after:    1 day

Modified:
  head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c

Modified: head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c   Sun May 23 
09:44:48 2010        (r208441)
+++ head/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/spa.c   Sun May 23 
10:08:05 2010        (r208442)
@@ -2082,10 +2082,10 @@ spa_create(const char *pool, nvlist_t *n
        if (version >= SPA_VERSION_ZPOOL_HISTORY && history_str != NULL)
                (void) spa_history_log(spa, history_str, LOG_CMD_POOL_CREATE);
 
-       mutex_exit(&spa_namespace_lock);
-
        spa->spa_minref = refcount_count(&spa->spa_refcount);
 
+       mutex_exit(&spa_namespace_lock);
+
        return (0);
 }
 
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