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SUNRPC: new svc_bind() routine introduced

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This new routine is responsible for service registration in a specified
network context.

The idea is to separate service creation from per-net operations.

Note also: since registering service with svc_bind() can fail, the
service will be destroyed and during destruction it will try to
unregister itself from rpcbind. In this case unregistration has to be
skipped.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Stanislav Kinsbursky
2012-05-02 16:08:38 +04:00
committed by J. Bruce Fields
parent c52226daf5
commit 9793f7c889
6 changed files with 41 additions and 14 deletions
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8
fs/nfs/callback.c
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@@ -17,6 +17,7 @@
#include <linux/kthread.h>
#include <linux/sunrpc/svcauth_gss.h>
#include <linux/sunrpc/bc_xprt.h>
#include <linux/nsproxy.h>
#include <net/inet_sock.h>
@@ -253,6 +254,7 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
char svc_name[12];
int ret = 0;
int minorversion_setup;
struct net *net = current->nsproxy->net_ns;
mutex_lock(&nfs_callback_mutex);
if (cb_info->users++ || cb_info->task != NULL) {
@@ -265,6 +267,12 @@ int nfs_callback_up(u32 minorversion, struct rpc_xprt *xprt)
goto out_err;
}
ret = svc_bind(serv, net);
if (ret < 0) {
printk(KERN_WARNING "NFS: bind callback service failed\n");
goto out_err;
}
minorversion_setup = nfs_minorversion_callback_svc_setup(minorversion,
serv, xprt, &rqstp, &callback_svc);
if (!minorversion_setup) {