sunrpc/nfs: cleanup procfs/pipefs entry in cache_detail
Record flush/channel/content entries is useless, remove them.
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
diff --git a/net/sunrpc/cache.c b/net/sunrpc/cache.c
index 8147e8d..688ef8c 100644
--- a/net/sunrpc/cache.c
+++ b/net/sunrpc/cache.c
@@ -1600,21 +1600,12 @@
.llseek = no_llseek,
};
-static void remove_cache_proc_entries(struct cache_detail *cd, struct net *net)
+static void remove_cache_proc_entries(struct cache_detail *cd)
{
- struct sunrpc_net *sn;
-
- if (cd->u.procfs.proc_ent == NULL)
- return;
- if (cd->u.procfs.flush_ent)
- remove_proc_entry("flush", cd->u.procfs.proc_ent);
- if (cd->u.procfs.channel_ent)
- remove_proc_entry("channel", cd->u.procfs.proc_ent);
- if (cd->u.procfs.content_ent)
- remove_proc_entry("content", cd->u.procfs.proc_ent);
- cd->u.procfs.proc_ent = NULL;
- sn = net_generic(net, sunrpc_net_id);
- remove_proc_entry(cd->name, sn->proc_net_rpc);
+ if (cd->procfs) {
+ proc_remove(cd->procfs);
+ cd->procfs = NULL;
+ }
}
#ifdef CONFIG_PROC_FS
@@ -1624,38 +1615,30 @@
struct sunrpc_net *sn;
sn = net_generic(net, sunrpc_net_id);
- cd->u.procfs.proc_ent = proc_mkdir(cd->name, sn->proc_net_rpc);
- if (cd->u.procfs.proc_ent == NULL)
+ cd->procfs = proc_mkdir(cd->name, sn->proc_net_rpc);
+ if (cd->procfs == NULL)
goto out_nomem;
- cd->u.procfs.channel_ent = NULL;
- cd->u.procfs.content_ent = NULL;
p = proc_create_data("flush", S_IFREG|S_IRUSR|S_IWUSR,
- cd->u.procfs.proc_ent,
- &cache_flush_operations_procfs, cd);
- cd->u.procfs.flush_ent = p;
+ cd->procfs, &cache_flush_operations_procfs, cd);
if (p == NULL)
goto out_nomem;
if (cd->cache_request || cd->cache_parse) {
p = proc_create_data("channel", S_IFREG|S_IRUSR|S_IWUSR,
- cd->u.procfs.proc_ent,
- &cache_file_operations_procfs, cd);
- cd->u.procfs.channel_ent = p;
+ cd->procfs, &cache_file_operations_procfs, cd);
if (p == NULL)
goto out_nomem;
}
if (cd->cache_show) {
p = proc_create_data("content", S_IFREG|S_IRUSR,
- cd->u.procfs.proc_ent,
- &content_file_operations_procfs, cd);
- cd->u.procfs.content_ent = p;
+ cd->procfs, &content_file_operations_procfs, cd);
if (p == NULL)
goto out_nomem;
}
return 0;
out_nomem:
- remove_cache_proc_entries(cd, net);
+ remove_cache_proc_entries(cd);
return -ENOMEM;
}
#else /* CONFIG_PROC_FS */
@@ -1684,7 +1667,7 @@
void cache_unregister_net(struct cache_detail *cd, struct net *net)
{
- remove_cache_proc_entries(cd, net);
+ remove_cache_proc_entries(cd);
sunrpc_destroy_cache_detail(cd);
}
EXPORT_SYMBOL_GPL(cache_unregister_net);
@@ -1843,15 +1826,17 @@
struct dentry *dir = rpc_create_cache_dir(parent, name, umode, cd);
if (IS_ERR(dir))
return PTR_ERR(dir);
- cd->u.pipefs.dir = dir;
+ cd->pipefs = dir;
return 0;
}
EXPORT_SYMBOL_GPL(sunrpc_cache_register_pipefs);
void sunrpc_cache_unregister_pipefs(struct cache_detail *cd)
{
- rpc_remove_cache_dir(cd->u.pipefs.dir);
- cd->u.pipefs.dir = NULL;
+ if (cd->pipefs) {
+ rpc_remove_cache_dir(cd->pipefs);
+ cd->pipefs = NULL;
+ }
}
EXPORT_SYMBOL_GPL(sunrpc_cache_unregister_pipefs);