diff options
Diffstat (limited to 'kernels/linux-libre-xen/sunrpc-add-an-info-file-for-the-dummy-gssd-pipe.patch')
| -rw-r--r-- | kernels/linux-libre-xen/sunrpc-add-an-info-file-for-the-dummy-gssd-pipe.patch | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/kernels/linux-libre-xen/sunrpc-add-an-info-file-for-the-dummy-gssd-pipe.patch b/kernels/linux-libre-xen/sunrpc-add-an-info-file-for-the-dummy-gssd-pipe.patch new file mode 100644 index 000000000..dd3b5ba2f --- /dev/null +++ b/kernels/linux-libre-xen/sunrpc-add-an-info-file-for-the-dummy-gssd-pipe.patch @@ -0,0 +1,96 @@ +Bugzilla: 1037793 +Upstream-status: submitted for 3.14 + +rpc.gssd expects to see an "info" file in each clntXX dir. Since adding +the dummy gssd pipe, users that run rpc.gssd see a lot of these messages +spamming the logs: + + rpc.gssd[508]: ERROR: can't open /var/lib/nfs/rpc_pipefs/gssd/clntXX/info: No such file or directory + rpc.gssd[508]: ERROR: failed to read service info + +Add a dummy gssd/clntXX/info file to help silence these messages. + +Signed-off-by: Jeff Layton <jlayton@redhat.com> +--- + net/sunrpc/rpc_pipe.c | 50 +++++++++++++++++++++++++++++++++++++++++++++++++- + 1 file changed, 49 insertions(+), 1 deletion(-) + +diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c +index 0b74c61..5d973b2 100644 +--- a/net/sunrpc/rpc_pipe.c ++++ b/net/sunrpc/rpc_pipe.c +@@ -17,6 +17,7 @@ + #include <linux/fsnotify.h> + #include <linux/kernel.h> + #include <linux/rcupdate.h> ++#include <linux/utsname.h> + + #include <asm/ioctls.h> + #include <linux/poll.h> +@@ -1275,6 +1276,44 @@ static const struct rpc_pipe_ops gssd_dummy_pipe_ops = { + .downcall = dummy_downcall, + }; + ++/* ++ * Here we present a bogus "info" file to keep rpc.gssd happy. We don't expect ++ * that it will ever use this info to handle an upcall, but rpc.gssd expects ++ * that this file will be there and have a certain format. ++ */ ++static int ++rpc_show_dummy_info(struct seq_file *m, void *v) ++{ ++ seq_printf(m, "RPC server: %s\n", utsname()->nodename); ++ seq_printf(m, "service: foo (1) version 0\n"); ++ seq_printf(m, "address: 127.0.0.1\n"); ++ seq_printf(m, "protocol: tcp\n"); ++ seq_printf(m, "port: 0\n"); ++ return 0; ++} ++ ++static int ++rpc_dummy_info_open(struct inode *inode, struct file *file) ++{ ++ return single_open(file, rpc_show_dummy_info, NULL); ++} ++ ++static const struct file_operations rpc_dummy_info_operations = { ++ .owner = THIS_MODULE, ++ .open = rpc_dummy_info_open, ++ .read = seq_read, ++ .llseek = seq_lseek, ++ .release = single_release, ++}; ++ ++static const struct rpc_filelist gssd_dummy_info_file[] = { ++ [0] = { ++ .name = "info", ++ .i_fop = &rpc_dummy_info_operations, ++ .mode = S_IFREG | S_IRUSR, ++ }, ++}; ++ + /** + * rpc_gssd_dummy_populate - create a dummy gssd pipe + * @root: root of the rpc_pipefs filesystem +@@ -1312,9 +1351,18 @@ rpc_gssd_dummy_populate(struct dentry *root, struct rpc_pipe *pipe_data) + goto out; + } + ++ ret = rpc_populate(clnt_dentry, gssd_dummy_info_file, 0, 1, NULL); ++ if (ret) { ++ __rpc_depopulate(gssd_dentry, gssd_dummy_clnt_dir, 0, 1); ++ pipe_dentry = ERR_PTR(ret); ++ goto out; ++ } ++ + pipe_dentry = rpc_mkpipe_dentry(clnt_dentry, "gssd", NULL, pipe_data); +- if (IS_ERR(pipe_dentry)) ++ if (IS_ERR(pipe_dentry)) { ++ __rpc_depopulate(clnt_dentry, gssd_dummy_info_file, 0, 1); + __rpc_depopulate(gssd_dentry, gssd_dummy_clnt_dir, 0, 1); ++ } + out: + dput(clnt_dentry); + dput(gssd_dentry); +-- +1.8.4.2 |