[PATCH] sunrpc: convert to DEFINE_SHOW_ATTRIBUTE

[Yangtao Li]

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.win...@gmail.com>
---
 net/sunrpc/rpc_pipe.c | 19 +++----------------
 net/sunrpc/stats.c    | 14 +-------------
 2 files changed, 4 insertions(+), 29 deletions(-)

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index 4fda18d47e2c..69663681bf9d 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -1266,7 +1266,7 @@ static const struct rpc_pipe_ops gssd_dummy_pipe_ops = {
  * that this file will be there and have a certain format.
  */
 static int
-rpc_show_dummy_info(struct seq_file *m, void *v)
+rpc_dummy_info_show(struct seq_file *m, void *v)
 {
        seq_printf(m, "RPC server: %s\n", utsname()->nodename);
        seq_printf(m, "service: foo (1) version 0\n");
@@ -1275,25 +1275,12 @@ rpc_show_dummy_info(struct seq_file *m, void *v)
        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,
-};
+DEFINE_SHOW_ATTRIBUTE(rpc_dummy_info);
 
 static const struct rpc_filelist gssd_dummy_info_file[] = {
        [0] = {
                .name = "info",
-               .i_fop = &rpc_dummy_info_operations,
+               .i_fop = &rpc_dummy_info_fops,
                .mode = S_IFREG | 0400,
        },
 };
diff --git a/net/sunrpc/stats.c b/net/sunrpc/stats.c
index 71166b393732..d064fcec0b2e 100644
--- a/net/sunrpc/stats.c
+++ b/net/sunrpc/stats.c
@@ -62,19 +62,7 @@ static int rpc_proc_show(struct seq_file *seq, void *v) {
        }
        return 0;
 }
-
-static int rpc_proc_open(struct inode *inode, struct file *file)
-{
-       return single_open(file, rpc_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations rpc_proc_fops = {
-       .owner = THIS_MODULE,
-       .open = rpc_proc_open,
-       .read  = seq_read,
-       .llseek = seq_lseek,
-       .release = single_release,
-};
+DEFINE_SHOW_ATTRIBUTE(rpc_proc);
 
 /*
  * Get RPC server stats
-- 
2.17.0