From: Matthew Wilcox <mawilcox@linuxonhyperv.com>
To: linux-kernel@vger.kernel.org,
        Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <mawilcox@microsoft.com>, linux-mm@kvack.org,
        linux-fsdevel@vger.kernel.org,
        Konstantin Khlebnikov <koct9i@gmail.com>,
        Ross Zwisler <ross.zwisler@linux.intel.com>,
        "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
        Tejun Heo <tj@kernel.org>
Subject: [PATCH 3/5] radix tree test suite: Add new tag check
Date: Tue, 13 Dec 2016 14:21:30 -0800
Message-Id: <1481667692-14500-4-git-send-email-mawilcox@linuxonhyperv.com>
In-Reply-To: <1481667692-14500-1-git-send-email-mawilcox@linuxonhyperv.com>
References: <1481667692-14500-1-git-send-email-mawilcox@linuxonhyperv.com>
Sender: linux-kernel-owner@vger.kernel.org
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From: Matthew Wilcox <mawilcox@microsoft.com>

We have a check that setting a tag on a single entry at root succeeds,
but we were missing a check that clearing a tag on that same entry also
succeeds.

Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com>
---
 tools/testing/radix-tree/tag_check.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/testing/radix-tree/tag_check.c b/tools/testing/radix-tree/tag_check.c
index ed5f87d..fd98c13 100644
--- a/tools/testing/radix-tree/tag_check.c
+++ b/tools/testing/radix-tree/tag_check.c
@@ -324,6 +324,9 @@ static void single_check(void)
 	assert(ret == 1);
 	ret = radix_tree_gang_lookup_tag(&tree, (void **)items, 0, BATCH, 1);
 	assert(ret == 1);
+	item_tag_clear(&tree, 0, 0);
+	ret = radix_tree_gang_lookup_tag(&tree, (void **)items, 0, BATCH, 0);
+	assert(ret == 0);
 	item_kill_tree(&tree);
 }
 
-- 
2.10.2