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From 23e66ba97127ff3b064d4c6c5138aa34eafc492f Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Mon, 9 Dec 2013 09:38:00 -0500
Subject: [PATCH 6/6] rpc_pipe: fix cleanup of dummy gssd directory when
notification fails
Currently, it could leak dentry references in some cases. Make sure
we clean up properly.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
net/sunrpc/rpc_pipe.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 5d973b2..b185548 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -1369,6 +1369,18 @@ out:
return pipe_dentry;
}
+static void
+rpc_gssd_dummy_depopulate(struct dentry *pipe_dentry)
+{
+ struct dentry *clnt_dir = pipe_dentry->d_parent;
+ struct dentry *gssd_dir = clnt_dir->d_parent;
+
+ __rpc_rmpipe(clnt_dir->d_inode, pipe_dentry);
+ __rpc_depopulate(clnt_dir, gssd_dummy_info_file, 0, 1);
+ __rpc_depopulate(gssd_dir, gssd_dummy_clnt_dir, 0, 1);
+ dput(pipe_dentry);
+}
+
static int
rpc_fill_super(struct super_block *sb, void *data, int silent)
{
@@ -1412,7 +1424,7 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
return 0;
err_depopulate:
- dput(gssd_dentry);
+ rpc_gssd_dummy_depopulate(gssd_dentry);
blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
RPC_PIPEFS_UMOUNT,
sb);
--
1.8.5.3
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