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sunrpc: Create a client/ subdirectory in the sunrpc sysfs

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For network namespace separation.

Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Olga Kornievskaia 2021-06-08 15:59:11 -04:00 committed by Trond Myklebust
parent 746787489b
commit c441f125de
1 changed files with 43 additions and 0 deletions
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43
net/sunrpc/sysfs.c
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@ -2,19 +2,62 @@
/*
* Copyright (c) 2020 Anna Schumaker <Anna.Schumaker@Netapp.com>
*/
#include <linux/sunrpc/clnt.h>
#include <linux/kobject.h>
static struct kset *rpc_sunrpc_kset;
static struct kobject *rpc_sunrpc_client_kobj;
static void rpc_sysfs_object_release(struct kobject *kobj)
{
kfree(kobj);
}
static const struct kobj_ns_type_operations *
rpc_sysfs_object_child_ns_type(struct kobject *kobj)
{
return &net_ns_type_operations;
}
static struct kobj_type rpc_sysfs_object_type = {
.release = rpc_sysfs_object_release,
.sysfs_ops = &kobj_sysfs_ops,
.child_ns_type = rpc_sysfs_object_child_ns_type,
};
static struct kobject *rpc_sysfs_object_alloc(const char *name,
struct kset *kset,
struct kobject *parent)
{
struct kobject *kobj;
kobj = kzalloc(sizeof(*kobj), GFP_KERNEL);
if (kobj) {
kobj->kset = kset;
if (kobject_init_and_add(kobj, &rpc_sysfs_object_type,
parent, "%s", name) == 0)
return kobj;
kobject_put(kobj);
}
return NULL;
}
int rpc_sysfs_init(void)
{
rpc_sunrpc_kset = kset_create_and_add("sunrpc", NULL, kernel_kobj);
if (!rpc_sunrpc_kset)
return -ENOMEM;
rpc_sunrpc_client_kobj = rpc_sysfs_object_alloc("client", rpc_sunrpc_kset, NULL);
if (!rpc_sunrpc_client_kobj) {
kset_unregister(rpc_sunrpc_kset);
rpc_sunrpc_client_kobj = NULL;
return -ENOMEM;
}
return 0;
}
void rpc_sysfs_exit(void)
{
kobject_put(rpc_sunrpc_client_kobj);
kset_unregister(rpc_sunrpc_kset);
}