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-rw-r--r--module/zfs/spa_misc.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/module/zfs/spa_misc.c b/module/zfs/spa_misc.c
index 409dce121..ec7c807a4 100644
--- a/module/zfs/spa_misc.c
+++ b/module/zfs/spa_misc.c
@@ -21,7 +21,7 @@
/*
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2011, 2015 by Delphix. All rights reserved.
- * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
+ * Copyright 2015 Nexenta Systems, Inc. All rights reserved.
* Copyright (c) 2014 Spectra Logic Corporation, All rights reserved.
*/
@@ -385,14 +385,16 @@ spa_config_tryenter(spa_t *spa, int locks, void *tag, krw_t rw)
if (rw == RW_READER) {
if (scl->scl_writer || scl->scl_write_wanted) {
mutex_exit(&scl->scl_lock);
- spa_config_exit(spa, locks ^ (1 << i), tag);
+ spa_config_exit(spa, locks & ((1 << i) - 1),
+ tag);
return (0);
}
} else {
ASSERT(scl->scl_writer != curthread);
if (!refcount_is_zero(&scl->scl_count)) {
mutex_exit(&scl->scl_lock);
- spa_config_exit(spa, locks ^ (1 << i), tag);
+ spa_config_exit(spa, locks & ((1 << i) - 1),
+ tag);
return (0);
}
scl->scl_writer = curthread;