linux-libre-knock: revert changes because knock patch is adapted for 3.12 kernel version only

1 files changed, 0 insertions, 143 deletions

diff --git a/kernels/linux-libre-knock/0002-sunrpc-replace-sunrpc_net-gssd_running-flag-with-a-m.patch b/kernels/linux-libre-knock/0002-sunrpc-replace-sunrpc_net-gssd_running-flag-with-a-m.patch
deleted file mode 100644
index 19e04da5d..000000000
--- a/kernels/linux-libre-knock/0002-sunrpc-replace-sunrpc_net-gssd_running-flag-with-a-m.patch
+++ /dev/null
@@ -1,143 +0,0 @@
-From 89f842435c630f8426f414e6030bc2ffea0d6f81 Mon Sep 17 00:00:00 2001
-From: Jeff Layton <jlayton@redhat.com>
-Date: Thu, 14 Nov 2013 07:25:18 -0500
-Subject: [PATCH 2/6] sunrpc: replace sunrpc_net->gssd_running flag with a more
- reliable check
-
-Now that we have a more reliable method to tell if gssd is running, we
-can replace the sn->gssd_running flag with a function that will query to
-see if it's up and running.
-
-There's also no need to attempt an upcall that we know will fail, so
-just return -EACCES if gssd isn't running. Finally, fix the warn_gss()
-message not to claim that that the upcall timed out since we don't
-necesarily perform one now when gssd isn't running, and remove the
-extraneous newline from the message.
-
-Signed-off-by: Jeff Layton <jlayton@redhat.com>
-Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
----
- include/linux/sunrpc/rpc_pipe_fs.h |  2 ++
- net/sunrpc/auth_gss/auth_gss.c     | 17 +++++++----------
- net/sunrpc/netns.h                 |  2 --
- net/sunrpc/rpc_pipe.c              | 14 ++++++++++----
- 4 files changed, 19 insertions(+), 16 deletions(-)
-
-diff --git a/include/linux/sunrpc/rpc_pipe_fs.h b/include/linux/sunrpc/rpc_pipe_fs.h
-index 85f1342..7f490be 100644
---- a/include/linux/sunrpc/rpc_pipe_fs.h
-+++ b/include/linux/sunrpc/rpc_pipe_fs.h
-@@ -131,5 +131,7 @@ extern int rpc_unlink(struct dentry *);
- extern int register_rpc_pipefs(void);
- extern void unregister_rpc_pipefs(void);
- 
-+extern bool gssd_running(struct net *net);
-+
- #endif
- #endif
-diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
-index 42fdfc6..0a2aee0 100644
---- a/net/sunrpc/auth_gss/auth_gss.c
-+++ b/net/sunrpc/auth_gss/auth_gss.c
-@@ -536,8 +536,7 @@ static void warn_gssd(void)
- 	unsigned long now = jiffies;
- 
- 	if (time_after(now, ratelimit)) {
--		printk(KERN_WARNING "RPC: AUTH_GSS upcall timed out.\n"
--				"Please check user daemon is running.\n");
-+		pr_warn("RPC: AUTH_GSS upcall failed. Please check user daemon is running.\n");
- 		ratelimit = now + 15*HZ;
- 	}
- }
-@@ -600,7 +599,6 @@ gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred)
- 	struct rpc_pipe *pipe;
- 	struct rpc_cred *cred = &gss_cred->gc_base;
- 	struct gss_upcall_msg *gss_msg;
--	unsigned long timeout;
- 	DEFINE_WAIT(wait);
- 	int err;
- 
-@@ -608,17 +606,16 @@ gss_create_upcall(struct gss_auth *gss_auth, struct gss_cred *gss_cred)
- 		__func__, from_kuid(&init_user_ns, cred->cr_uid));
- retry:
- 	err = 0;
--	/* Default timeout is 15s unless we know that gssd is not running */
--	timeout = 15 * HZ;
--	if (!sn->gssd_running)
--		timeout = HZ >> 2;
-+	/* if gssd is down, just skip upcalling altogether */
-+	if (!gssd_running(net)) {
-+		warn_gssd();
-+		return -EACCES;
-+	}
- 	gss_msg = gss_setup_upcall(gss_auth, cred);
- 	if (PTR_ERR(gss_msg) == -EAGAIN) {
- 		err = wait_event_interruptible_timeout(pipe_version_waitqueue,
--				sn->pipe_version >= 0, timeout);
-+				sn->pipe_version >= 0, 15 * HZ);
- 		if (sn->pipe_version < 0) {
--			if (err == 0)
--				sn->gssd_running = 0;
- 			warn_gssd();
- 			err = -EACCES;
- 		}
-diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h
-index 8a8e841..94e506f 100644
---- a/net/sunrpc/netns.h
-+++ b/net/sunrpc/netns.h
-@@ -33,8 +33,6 @@ struct sunrpc_net {
- 	int pipe_version;
- 	atomic_t pipe_users;
- 	struct proc_dir_entry *use_gssp_proc;
--
--	unsigned int gssd_running;
- };
- 
- extern int sunrpc_net_id;
-diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
-index c23458b..5cd7ad1 100644
---- a/net/sunrpc/rpc_pipe.c
-+++ b/net/sunrpc/rpc_pipe.c
-@@ -216,14 +216,11 @@ rpc_destroy_inode(struct inode *inode)
- static int
- rpc_pipe_open(struct inode *inode, struct file *filp)
- {
--	struct net *net = inode->i_sb->s_fs_info;
--	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
- 	struct rpc_pipe *pipe;
- 	int first_open;
- 	int res = -ENXIO;
- 
- 	mutex_lock(&inode->i_mutex);
--	sn->gssd_running = 1;
- 	pipe = RPC_I(inode)->pipe;
- 	if (pipe == NULL)
- 		goto out;
-@@ -1222,7 +1219,6 @@ int rpc_pipefs_init_net(struct net *net)
- 		return PTR_ERR(sn->gssd_dummy);
- 
- 	mutex_init(&sn->pipefs_sb_lock);
--	sn->gssd_running = 1;
- 	sn->pipe_version = -1;
- 	return 0;
- }
-@@ -1376,6 +1372,16 @@ err_depopulate:
- 	return err;
- }
- 
-+bool
-+gssd_running(struct net *net)
-+{
-+	struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
-+	struct rpc_pipe *pipe = sn->gssd_dummy;
-+
-+	return pipe->nreaders || pipe->nwriters;
-+}
-+EXPORT_SYMBOL_GPL(gssd_running);
-+
- static struct dentry *
- rpc_mount(struct file_system_type *fs_type,
- 		int flags, const char *dev_name, void *data)
--- 
-1.8.5.3
-