1 files changed, 0 insertions, 233 deletions
diff --git a/kernels/linux-libre-knock/sunrpc-create-a-new-dummy-pipe-for-gssd-to-hold-open.patch b/kernels/linux-libre-knock/sunrpc-create-a-new-dummy-pipe-for-gssd-to-hold-open.patch
deleted file mode 100644
index 805498a70..000000000
--- a/kernels/linux-libre-knock/sunrpc-create-a-new-dummy-pipe-for-gssd-to-hold-open.patch
+++ /dev/null
@@ -1,233 +0,0 @@
-Bugzilla: N/A
-Upstream-status: queued in NFS git tree (for 3.13/3.14?)
-
-rpc.gssd will naturally hold open any pipe named */clnt*/gssd that shows
-up under rpc_pipefs. That behavior gives us a reliable mechanism to tell
-whether it's actually running or not.
-
-Create a new toplevel "gssd" directory in rpc_pipefs when it's mounted.
-Under that directory create another directory called "clntXX", and then
-within that a pipe called "gssd".
-
-We'll never send an upcall along that pipe, and any downcall written to
-it will just return -EINVAL.
-
-Signed-off-by: Jeff Layton <jlayton@redhat.com>
-Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
----
- include/linux/sunrpc/rpc_pipe_fs.h |    3 +-
- net/sunrpc/netns.h                 |    1 +
- net/sunrpc/rpc_pipe.c              |   93 ++++++++++++++++++++++++++++++++++-
- net/sunrpc/sunrpc_syms.c           |    8 +++-
- 4 files changed, 100 insertions(+), 5 deletions(-)
-
-diff -up linux-3.11.9-200.fc19.x86_64/include/linux/sunrpc/rpc_pipe_fs.h.orig linux-3.11.9-200.fc19.x86_64/include/linux/sunrpc/rpc_pipe_fs.h
---- linux-3.11.9-200.fc19.x86_64/include/linux/sunrpc/rpc_pipe_fs.h.orig	2013-09-02 16:46:10.000000000 -0400
-+++ linux-3.11.9-200.fc19.x86_64/include/linux/sunrpc/rpc_pipe_fs.h	2013-11-21 10:11:17.893026000 -0500
-@@ -64,7 +64,8 @@ enum {
- 
- extern struct dentry *rpc_d_lookup_sb(const struct super_block *sb,
- 				      const unsigned char *dir_name);
--extern void rpc_pipefs_init_net(struct net *net);
-+extern int rpc_pipefs_init_net(struct net *net);
-+extern void rpc_pipefs_exit_net(struct net *net);
- extern struct super_block *rpc_get_sb_net(const struct net *net);
- extern void rpc_put_sb_net(const struct net *net);
- 
-diff -up linux-3.11.9-200.fc19.x86_64/net/sunrpc/netns.h.orig linux-3.11.9-200.fc19.x86_64/net/sunrpc/netns.h
---- linux-3.11.9-200.fc19.x86_64/net/sunrpc/netns.h.orig	2013-09-02 16:46:10.000000000 -0400
-+++ linux-3.11.9-200.fc19.x86_64/net/sunrpc/netns.h	2013-11-21 10:11:17.897029000 -0500
-@@ -14,6 +14,7 @@ struct sunrpc_net {
- 	struct cache_detail *rsi_cache;
- 
- 	struct super_block *pipefs_sb;
-+	struct rpc_pipe *gssd_dummy;
- 	struct mutex pipefs_sb_lock;
- 
- 	struct list_head all_clients;
-diff -up linux-3.11.9-200.fc19.x86_64/net/sunrpc/rpc_pipe.c.orig linux-3.11.9-200.fc19.x86_64/net/sunrpc/rpc_pipe.c
---- linux-3.11.9-200.fc19.x86_64/net/sunrpc/rpc_pipe.c.orig	2013-09-02 16:46:10.000000000 -0400
-+++ linux-3.11.9-200.fc19.x86_64/net/sunrpc/rpc_pipe.c	2013-11-21 10:11:17.903026000 -0500
-@@ -38,7 +38,7 @@
- #define NET_NAME(net)	((net == &init_net) ? " (init_net)" : "")
- 
- static struct file_system_type rpc_pipe_fs_type;
--
-+static const struct rpc_pipe_ops gssd_dummy_pipe_ops;
- 
- static struct kmem_cache *rpc_inode_cachep __read_mostly;
- 
-@@ -1019,6 +1019,7 @@ enum {
- 	RPCAUTH_nfsd4_cb,
- 	RPCAUTH_cache,
- 	RPCAUTH_nfsd,
-+	RPCAUTH_gssd,
- 	RPCAUTH_RootEOF
- };
- 
-@@ -1055,6 +1056,10 @@ static const struct rpc_filelist files[]
- 		.name = "nfsd",
- 		.mode = S_IFDIR | S_IRUGO | S_IXUGO,
- 	},
-+	[RPCAUTH_gssd] = {
-+		.name = "gssd",
-+		.mode = S_IFDIR | S_IRUGO | S_IXUGO,
-+	},
- };
- 
- /*
-@@ -1068,13 +1073,25 @@ struct dentry *rpc_d_lookup_sb(const str
- }
- EXPORT_SYMBOL_GPL(rpc_d_lookup_sb);
- 
--void rpc_pipefs_init_net(struct net *net)
-+int rpc_pipefs_init_net(struct net *net)
- {
- 	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
- 
-+	sn->gssd_dummy = rpc_mkpipe_data(&gssd_dummy_pipe_ops, 0);
-+	if (IS_ERR(sn->gssd_dummy))
-+		return PTR_ERR(sn->gssd_dummy);
-+
- 	mutex_init(&sn->pipefs_sb_lock);
- 	sn->gssd_running = 1;
- 	sn->pipe_version = -1;
-+	return 0;
-+}
-+
-+void rpc_pipefs_exit_net(struct net *net)
-+{
-+	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
-+
-+	rpc_destroy_pipe_data(sn->gssd_dummy);
- }
- 
- /*
-@@ -1104,11 +1121,73 @@ void rpc_put_sb_net(const struct net *ne
- }
- EXPORT_SYMBOL_GPL(rpc_put_sb_net);
- 
-+static const struct rpc_filelist gssd_dummy_clnt_dir[] = {
-+	[0] = {
-+		.name = "clntXX",
-+		.mode = S_IFDIR | S_IRUGO | S_IXUGO,
-+	},
-+};
-+
-+static ssize_t
-+dummy_downcall(struct file *filp, const char __user *src, size_t len)
-+{
-+	return -EINVAL;
-+}
-+
-+static const struct rpc_pipe_ops gssd_dummy_pipe_ops = {
-+	.upcall		= rpc_pipe_generic_upcall,
-+	.downcall	= dummy_downcall,
-+};
-+
-+/**
-+ * rpc_gssd_dummy_populate - create a dummy gssd pipe
-+ * @root:	root of the rpc_pipefs filesystem
-+ * @pipe_data:	pipe data created when netns is initialized
-+ *
-+ * Create a dummy set of directories and a pipe that gssd can hold open to
-+ * indicate that it is up and running.
-+ */
-+static struct dentry *
-+rpc_gssd_dummy_populate(struct dentry *root, struct rpc_pipe *pipe_data)
-+{
-+	int ret = 0;
-+	struct dentry *gssd_dentry;
-+	struct dentry *clnt_dentry = NULL;
-+	struct dentry *pipe_dentry = NULL;
-+	struct qstr q = QSTR_INIT(files[RPCAUTH_gssd].name,
-+				  strlen(files[RPCAUTH_gssd].name));
-+
-+	/* We should never get this far if "gssd" doesn't exist */
-+	gssd_dentry = d_hash_and_lookup(root, &q);
-+	if (!gssd_dentry)
-+		return ERR_PTR(-ENOENT);
-+
-+	ret = rpc_populate(gssd_dentry, gssd_dummy_clnt_dir, 0, 1, NULL);
-+	if (ret) {
-+		pipe_dentry = ERR_PTR(ret);
-+		goto out;
-+	}
-+
-+	q.name = gssd_dummy_clnt_dir[0].name;
-+	q.len = strlen(gssd_dummy_clnt_dir[0].name);
-+	clnt_dentry = d_hash_and_lookup(gssd_dentry, &q);
-+	if (!clnt_dentry) {
-+		pipe_dentry = ERR_PTR(-ENOENT);
-+		goto out;
-+	}
-+
-+	pipe_dentry = rpc_mkpipe_dentry(clnt_dentry, "gssd", NULL, pipe_data);
-+out:
-+	dput(clnt_dentry);
-+	dput(gssd_dentry);
-+	return pipe_dentry;
-+}
-+
- static int
- rpc_fill_super(struct super_block *sb, void *data, int silent)
- {
- 	struct inode *inode;
--	struct dentry *root;
-+	struct dentry *root, *gssd_dentry;
- 	struct net *net = data;
- 	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
- 	int err;
-@@ -1126,6 +1205,13 @@ rpc_fill_super(struct super_block *sb, v
- 		return -ENOMEM;
- 	if (rpc_populate(root, files, RPCAUTH_lockd, RPCAUTH_RootEOF, NULL))
- 		return -ENOMEM;
-+
-+	gssd_dentry = rpc_gssd_dummy_populate(root, sn->gssd_dummy);
-+	if (IS_ERR(gssd_dentry)) {
-+		__rpc_depopulate(root, files, RPCAUTH_lockd, RPCAUTH_RootEOF);
-+		return PTR_ERR(gssd_dentry);
-+	}
-+
- 	dprintk("RPC:       sending pipefs MOUNT notification for net %p%s\n",
- 		net, NET_NAME(net));
- 	mutex_lock(&sn->pipefs_sb_lock);
-@@ -1140,6 +1226,7 @@ rpc_fill_super(struct super_block *sb, v
- 	return 0;
- 
- err_depopulate:
-+	dput(gssd_dentry);
- 	blocking_notifier_call_chain(&rpc_pipefs_notifier_list,
- 					   RPC_PIPEFS_UMOUNT,
- 					   sb);
-diff -up linux-3.11.9-200.fc19.x86_64/net/sunrpc/sunrpc_syms.c.orig linux-3.11.9-200.fc19.x86_64/net/sunrpc/sunrpc_syms.c
---- linux-3.11.9-200.fc19.x86_64/net/sunrpc/sunrpc_syms.c.orig	2013-09-02 16:46:10.000000000 -0400
-+++ linux-3.11.9-200.fc19.x86_64/net/sunrpc/sunrpc_syms.c	2013-11-21 10:11:17.908026000 -0500
-@@ -44,12 +44,17 @@ static __net_init int sunrpc_init_net(st
- 	if (err)
- 		goto err_unixgid;
- 
--	rpc_pipefs_init_net(net);
-+	err = rpc_pipefs_init_net(net);
-+	if (err)
-+		goto err_pipefs;
-+
- 	INIT_LIST_HEAD(&sn->all_clients);
- 	spin_lock_init(&sn->rpc_client_lock);
- 	spin_lock_init(&sn->rpcb_clnt_lock);
- 	return 0;
- 
-+err_pipefs:
-+	unix_gid_cache_destroy(net);
- err_unixgid:
- 	ip_map_cache_destroy(net);
- err_ipmap:
-@@ -60,6 +65,7 @@ err_proc:
- 
- static __net_exit void sunrpc_exit_net(struct net *net)
- {
-+	rpc_pipefs_exit_net(net);
- 	unix_gid_cache_destroy(net);
- 	ip_map_cache_destroy(net);
- 	rpc_proc_exit(net);
-