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authorArnd Bergmann <arnd@arndb.de>2012-05-11 17:15:31 +0200
committerArnd Bergmann <arnd@arndb.de>2012-05-11 17:15:31 +0200
commit93c6d8927fa692faef3d7d945bd4fe84b0185ad4 (patch)
tree0a971c86114656ec4e39f7789d9faeb70432c36a /net/sunrpc/clnt.c
parentea01d31a07ae182028d2398380948f5a4ee09953 (diff)
parent50260924afd4b745bfb6e5f1caee381a1875fc31 (diff)
Merge branch 'clk/mxs' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/clock
Shawn Guo <shawn.guo@linaro.org> writes: mxs common clk porting for v3.5. It depends on the following two branches. [1] git://git.linaro.org/people/mturquette/linux.git clk-next [2] http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-arm.git clkdev As the mxs device tree conversion will constantly touch clock files, to save the conflicts, the updated mxs/dt branch coming later will based on this pull-request. * 'clk/mxs' of git://git.linaro.org/people/shawnguo/linux-2.6: ARM: mxs: remove now unused timer_clk argument from mxs_timer_init ARM: mxs: remove old clock support ARM: mxs: switch to common clk framework ARM: mxs: change the lookup name for fec phy clock ARM: mxs: request clock for timer clk: mxs: add clock support for imx28 clk: mxs: add clock support for imx23 clk: mxs: add mxs specific clocks Includes an update to Linux 3.4-rc6 Conflicts: drivers/clk/Makefile Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'net/sunrpc/clnt.c')
-rw-r--r--net/sunrpc/clnt.c50
1 files changed, 39 insertions, 11 deletions
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 67972462a54..adf2990aceb 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -176,16 +176,22 @@ rpc_setup_pipedir(struct rpc_clnt *clnt, const char *dir_name)
return 0;
}
-static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event,
- struct super_block *sb)
+static inline int rpc_clnt_skip_event(struct rpc_clnt *clnt, unsigned long event)
+{
+ if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) ||
+ ((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry))
+ return 1;
+ return 0;
+}
+
+static int __rpc_clnt_handle_event(struct rpc_clnt *clnt, unsigned long event,
+ struct super_block *sb)
{
struct dentry *dentry;
int err = 0;
switch (event) {
case RPC_PIPEFS_MOUNT:
- if (clnt->cl_program->pipe_dir_name == NULL)
- break;
dentry = rpc_setup_pipedir_sb(sb, clnt,
clnt->cl_program->pipe_dir_name);
BUG_ON(dentry == NULL);
@@ -208,6 +214,20 @@ static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event,
return err;
}
+static int __rpc_pipefs_event(struct rpc_clnt *clnt, unsigned long event,
+ struct super_block *sb)
+{
+ int error = 0;
+
+ for (;; clnt = clnt->cl_parent) {
+ if (!rpc_clnt_skip_event(clnt, event))
+ error = __rpc_clnt_handle_event(clnt, event, sb);
+ if (error || clnt == clnt->cl_parent)
+ break;
+ }
+ return error;
+}
+
static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event)
{
struct sunrpc_net *sn = net_generic(net, sunrpc_net_id);
@@ -215,10 +235,12 @@ static struct rpc_clnt *rpc_get_client_for_event(struct net *net, int event)
spin_lock(&sn->rpc_client_lock);
list_for_each_entry(clnt, &sn->all_clients, cl_clients) {
- if (((event == RPC_PIPEFS_MOUNT) && clnt->cl_dentry) ||
- ((event == RPC_PIPEFS_UMOUNT) && !clnt->cl_dentry))
+ if (clnt->cl_program->pipe_dir_name == NULL)
+ break;
+ if (rpc_clnt_skip_event(clnt, event))
+ continue;
+ if (atomic_inc_not_zero(&clnt->cl_count) == 0)
continue;
- atomic_inc(&clnt->cl_count);
spin_unlock(&sn->rpc_client_lock);
return clnt;
}
@@ -257,6 +279,14 @@ void rpc_clients_notifier_unregister(void)
return rpc_pipefs_notifier_unregister(&rpc_clients_block);
}
+static void rpc_clnt_set_nodename(struct rpc_clnt *clnt, const char *nodename)
+{
+ clnt->cl_nodelen = strlen(nodename);
+ if (clnt->cl_nodelen > UNX_MAXNODENAME)
+ clnt->cl_nodelen = UNX_MAXNODENAME;
+ memcpy(clnt->cl_nodename, nodename, clnt->cl_nodelen);
+}
+
static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt)
{
const struct rpc_program *program = args->program;
@@ -337,10 +367,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
}
/* save the nodename */
- clnt->cl_nodelen = strlen(init_utsname()->nodename);
- if (clnt->cl_nodelen > UNX_MAXNODENAME)
- clnt->cl_nodelen = UNX_MAXNODENAME;
- memcpy(clnt->cl_nodename, init_utsname()->nodename, clnt->cl_nodelen);
+ rpc_clnt_set_nodename(clnt, utsname()->nodename);
rpc_register_client(clnt);
return clnt;
@@ -499,6 +526,7 @@ rpc_clone_client(struct rpc_clnt *clnt)
err = rpc_setup_pipedir(new, clnt->cl_program->pipe_dir_name);
if (err != 0)
goto out_no_path;
+ rpc_clnt_set_nodename(new, utsname()->nodename);
if (new->cl_auth)
atomic_inc(&new->cl_auth->au_count);
atomic_inc(&clnt->cl_count);