Merge branch 'for-3.5-take-2' of git://linux-nfs.org/~bfields/linux

Pull nfsd update from Bruce Fields.

* 'for-3.5-take-2' of git://linux-nfs.org/~bfields/linux: (23 commits)
  nfsd: trivial: use SEEK_SET instead of 0 in vfs_llseek
  SUNRPC: split upcall function to extract reusable parts
  nfsd: allocate id-to-name and name-to-id caches in per-net operations.
  nfsd: make name-to-id cache allocated per network namespace context
  nfsd: make id-to-name cache allocated per network namespace context
  nfsd: pass network context to idmap init/exit functions
  nfsd: allocate export and expkey caches in per-net operations.
  nfsd: make expkey cache allocated per network namespace context
  nfsd: make export cache allocated per network namespace context
  nfsd: pass pointer to export cache down to stack wherever possible.
  nfsd: pass network context to export caches init/shutdown routines
  Lockd: pass network namespace to creation and destruction routines
  NFSd: remove hard-coded dereferences to name-to-id and id-to-name caches
  nfsd: pass pointer to expkey cache down to stack wherever possible.
  nfsd: use hash table from cache detail in nfsd export seq ops
  nfsd: pass svc_export_cache pointer as private data to "exports" seq file ops
  nfsd: use exp_put() for svc_export_cache put
  nfsd: use cache detail pointer from svc_export structure on cache put
  nfsd: add link to owner cache detail to svc_export structure
  nfsd: use passed cache_detail pointer expkey_parse()
  ...

2 files changed, 11 insertions, 9 deletions

diff --git a/fs/lockd/clntlock.c b/fs/lockd/clntlock.c
index ba1dc2eebd1e..ca0a08001449 100644
--- a/fs/lockd/clntlock.c
+++ b/fs/lockd/clntlock.c
@@ -56,7 +56,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
         u32 nlm_version = (nlm_init->nfs_version == 2) ? 1 : 4;
         int status;
 
-        status = lockd_up();
+        status = lockd_up(nlm_init->net);
         if (status < 0)
                 return ERR_PTR(status);
 
@@ -65,7 +65,7 @@ struct nlm_host *nlmclnt_init(const struct nlmclnt_initdata *nlm_init)
                                    nlm_init->hostname, nlm_init->noresvport,
                                    nlm_init->net);
         if (host == NULL) {
-                lockd_down();
+                lockd_down(nlm_init->net);
                 return ERR_PTR(-ENOLCK);
         }
 
@@ -80,8 +80,10 @@ EXPORT_SYMBOL_GPL(nlmclnt_init);
  */
 void nlmclnt_done(struct nlm_host *host)
 {
+        struct net *net = host->net;
+
         nlmclnt_release_host(host);
-        lockd_down();
+        lockd_down(net);
 }
 EXPORT_SYMBOL_GPL(nlmclnt_done);
 
@@ -220,11 +222,12 @@ reclaimer(void *ptr)
         struct nlm_wait   *block;
         struct file_lock *fl, *next;
         u32 nsmstate;
+        struct net *net = host->net;
 
         allow_signal(SIGKILL);
 
         down_write(&host->h_rwsem);
-        lockd_up();     /* note: this cannot fail as lockd is already running */
+        lockd_up(net);  /* note: this cannot fail as lockd is already running */
 
         dprintk("lockd: reclaiming locks for host %s\n", host->h_name);
 
@@ -275,6 +278,6 @@ restart:
 
         /* Release host handle after use */
         nlmclnt_release_host(host);
-        lockd_down();
+        lockd_down(net);
         return 0;
 }
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index f49b9afc4436..1ead0750cdbb 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -295,11 +295,10 @@ static void lockd_down_net(struct net *net)
 /*
  * Bring up the lockd process if it's not already up.
  */
-int lockd_up(void)
+int lockd_up(struct net *net)
 {
         struct svc_serv *serv;
         int             error = 0;
-        struct net *net = current->nsproxy->net_ns;
 
         mutex_lock(&nlmsvc_mutex);
         /*
@@ -378,12 +377,12 @@ EXPORT_SYMBOL_GPL(lockd_up);
  * Decrement the user count and bring down lockd if we're the last.
  */
 void
-lockd_down(void)
+lockd_down(struct net *net)
 {
         mutex_lock(&nlmsvc_mutex);
         if (nlmsvc_users) {
                 if (--nlmsvc_users) {
-                        lockd_down_net(current->nsproxy->net_ns);
+                        lockd_down_net(net);
                         goto out;
                 }
         } else {