From: Stanislav Kinsbursky <skinsbursky@parallels.com>
To: Trond.Myklebust@netapp.com
Cc: linux-nfs@vger.kernel.org, xemul@parallels.com, neilb@suse.de,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
jbottomley@parallels.com, bfields@fieldses.org,
davem@davemloft.net, devel@openvz.org
Subject: [PATCH 04/11] SUNRPC: per-net sysctl's set introduced
Date: Wed, 14 Dec 2011 14:45:13 +0300 [thread overview]
Message-ID: <20111214104513.3991.3257.stgit@localhost6.localdomain6> (raw)
In-Reply-To: <20111214103602.3991.20990.stgit@localhost6.localdomain6>
This patch introduces per-net sysctl set and it's initialization routines. Also
it modifies sysctl's registering helpers to make them use these sets.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
---
include/linux/sunrpc/debug.h | 7 ++++++-
net/sunrpc/netns.h | 3 +++
net/sunrpc/sunrpc_syms.c | 13 ++++++++++++-
net/sunrpc/sysctl.c | 38 +++++++++++++++++++++++++++++++++-----
net/sunrpc/xprtrdma/transport.c | 2 +-
net/sunrpc/xprtsock.c | 2 +-
6 files changed, 56 insertions(+), 9 deletions(-)
diff --git a/include/linux/sunrpc/debug.h b/include/linux/sunrpc/debug.h
index b5e0c46..f2d825c 100644
--- a/include/linux/sunrpc/debug.h
+++ b/include/linux/sunrpc/debug.h
@@ -67,7 +67,12 @@ extern unsigned int nlm_debug;
void rpc_register_sysctl(void);
void rpc_unregister_sysctl(void);
-struct ctl_table_header *register_sunrpc_sysctl(struct ctl_table *);
+struct net;
+struct ctl_table;
+int debug_sysctl_init(struct net *);
+void debug_sysctl_exit(struct net *);
+struct ctl_table_header *register_sunrpc_sysctl(struct net *,
+ struct ctl_table *);
#endif
diff --git a/net/sunrpc/netns.h b/net/sunrpc/netns.h
index 6010c46..a949ddb 100644
--- a/net/sunrpc/netns.h
+++ b/net/sunrpc/netns.h
@@ -12,6 +12,9 @@ struct sunrpc_net {
struct list_head all_clients;
spinlock_t rpc_client_lock;
+#ifdef RPC_DEBUG
+ struct ctl_table_set sysctls;
+#endif
};
extern int sunrpc_net_id;
diff --git a/net/sunrpc/sunrpc_syms.c b/net/sunrpc/sunrpc_syms.c
index e57aa10..44759e9 100644
--- a/net/sunrpc/sunrpc_syms.c
+++ b/net/sunrpc/sunrpc_syms.c
@@ -38,11 +38,19 @@ static __net_init int sunrpc_init_net(struct net *net)
err = ip_map_cache_create(net);
if (err)
goto err_ipmap;
-
+#ifdef RPC_DEBUG
+ err = debug_sysctl_init(net);
+ if (err)
+ goto err_sysctl;
+#endif
INIT_LIST_HEAD(&sn->all_clients);
spin_lock_init(&sn->rpc_client_lock);
return 0;
+#ifdef RPC_DEBUG
+err_sysctl:
+ ip_map_cache_destroy(net);
+#endif
err_ipmap:
rpc_proc_exit(net);
err_proc:
@@ -51,6 +59,9 @@ err_proc:
static __net_exit void sunrpc_exit_net(struct net *net)
{
+#ifdef RPC_DEBUG
+ debug_sysctl_exit(net);
+#endif
ip_map_cache_destroy(net);
rpc_proc_exit(net);
}
diff --git a/net/sunrpc/sysctl.c b/net/sunrpc/sysctl.c
index f6e7da2..adebf0a 100644
--- a/net/sunrpc/sysctl.c
+++ b/net/sunrpc/sysctl.c
@@ -40,7 +40,7 @@ EXPORT_SYMBOL_GPL(nlm_debug);
#ifdef RPC_DEBUG
#include <linux/nsproxy.h>
-#include <net/net_namespace.h>
+#include "netns.h"
static struct ctl_table_header *sunrpc_table_header;
static ctl_table debug_table[];
@@ -50,23 +50,51 @@ struct ctl_path sunrpc_path[] = {
{ },
};
+static struct ctl_table_set *
+sunrpc_debug_lookup(struct ctl_table_root *root, struct nsproxy *namespaces)
+{
+ struct sunrpc_net *sn = net_generic(namespaces->net_ns, sunrpc_net_id);
+
+ return &sn->sysctls;
+}
+
static struct ctl_table_root sunrpc_debug_root = {
+ .lookup = sunrpc_debug_lookup,
};
-struct ctl_table_header *register_sunrpc_sysctl(struct ctl_table *table)
+struct ctl_table_header *register_sunrpc_sysctl(struct net *net,
+ struct ctl_table *table)
{
- return __register_sysctl_paths(&sunrpc_debug_root, current->nsproxy,
+ struct nsproxy namespaces;
+
+ namespaces = *current->nsproxy;
+ namespaces.net_ns = net;
+ return __register_sysctl_paths(&sunrpc_debug_root, &namespaces,
sunrpc_path, table);
}
EXPORT_SYMBOL_GPL(register_sunrpc_sysctl);
+int debug_sysctl_init(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ setup_sysctl_set(&sn->sysctls, NULL, NULL);
+ return 0;
+}
+
+void debug_sysctl_exit(struct net *net)
+{
+ struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
+
+ WARN_ON(!list_empty(&sn->sysctls.list));
+}
+
void
rpc_register_sysctl(void)
{
if (!sunrpc_table_header) {
- setup_sysctl_set(&sunrpc_debug_root.default_set, NULL, NULL);
register_sysctl_root(&sunrpc_debug_root);
- sunrpc_table_header = register_sunrpc_sysctl(debug_table);
+ sunrpc_table_header = register_sunrpc_sysctl(&init_net, debug_table);
}
}
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 53a8622..4a63b35 100644
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -762,7 +762,7 @@ static int __init xprt_rdma_init(void)
#ifdef RPC_DEBUG
if (!sunrpc_table_header)
- sunrpc_table_header = register_sunrpc_sysctl(xr_tunables_table);
+ sunrpc_table_header = register_sunrpc_sysctl(&init_net, xr_tunables_table);
#endif
return 0;
}
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 6f1be96..1acc9a7 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2878,7 +2878,7 @@ int init_socket_xprt(void)
{
#ifdef RPC_DEBUG
if (!sunrpc_table_header)
- sunrpc_table_header = register_sunrpc_sysctl(xs_tunables_table);
+ sunrpc_table_header = register_sunrpc_sysctl(&init_net, xs_tunables_table);
#endif
xprt_register_transport(&xs_local_transport);
next prev parent reply other threads:[~2011-12-14 10:47 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-14 11:44 [PATCH 00/11] SUNRPC: make sysctl per network namespcase context Stanislav Kinsbursky
2011-12-14 11:44 ` [PATCH 01/11] SYSCTL: export root and set handling routines Stanislav Kinsbursky
2011-12-17 22:25 ` Eric W. Biederman
2011-12-19 8:56 ` Stanislav Kinsbursky
2011-12-19 10:15 ` Eric W. Biederman
2011-12-19 12:22 ` Stanislav Kinsbursky
2011-12-19 16:37 ` Eric W. Biederman
2011-12-19 17:24 ` Stanislav Kinsbursky
2012-01-03 3:49 ` Eric W. Biederman
2012-01-10 10:38 ` Stanislav Kinsbursky
2012-01-10 22:39 ` Eric W. Biederman
2012-01-11 9:47 ` Stanislav Kinsbursky
2012-01-11 17:21 ` Eric W. Biederman
2012-01-11 18:02 ` Stanislav Kinsbursky
2012-01-11 19:36 ` Eric W. Biederman
2012-01-12 9:17 ` Stanislav Kinsbursky
2011-12-14 11:44 ` [PATCH 02/11] SUNRPC: use syctl path instead of dummy parent table Stanislav Kinsbursky
2011-12-14 11:45 ` [PATCH 03/11] SUNRPC: sysctl root for debug table introduced Stanislav Kinsbursky
2011-12-14 11:45 ` Stanislav Kinsbursky [this message]
2011-12-14 11:45 ` [PATCH 05/11] SUNRPC: register debug sysctl table per network namespace Stanislav Kinsbursky
2011-12-14 11:45 ` [PATCH 06/11] SUNRPC: register xs_tunables " Stanislav Kinsbursky
2011-12-14 11:45 ` [PATCH 07/11] SUNRPC: xs tunables per network namespace introduced Stanislav Kinsbursky
2011-12-14 11:45 ` [PATCH 08/11] SUNRPC: use per-net xs tunables instead of static ones Stanislav Kinsbursky
2011-12-14 11:45 ` [PATCH 09/11] SUNRPC: remove xs_tcp_fin_timeout variable Stanislav Kinsbursky
2011-12-14 11:46 ` [PATCH 10/11] SUNRPC: allow debug flags modifications only from init_net Stanislav Kinsbursky
2011-12-14 11:46 ` [PATCH 11/11] SUNRPC: sysctl table for rpc_debug introduced Stanislav Kinsbursky
2012-02-07 11:44 ` [PATCH 00/11] SUNRPC: make sysctl per network namespcase context Stanislav Kinsbursky
2012-02-07 13:21 ` Myklebust, Trond
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20111214104513.3991.3257.stgit@localhost6.localdomain6 \
--to=skinsbursky@parallels.com \
--cc=Trond.Myklebust@netapp.com \
--cc=bfields@fieldses.org \
--cc=davem@davemloft.net \
--cc=devel@openvz.org \
--cc=jbottomley@parallels.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nfs@vger.kernel.org \
--cc=neilb@suse.de \
--cc=netdev@vger.kernel.org \
--cc=xemul@parallels.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).