SUNRPC: split cache creation and PipeFS registration

This precursor patch splits SUNRPC cache creation and PipeFS registartion.
It's required for latter split of NFS DNS resolver cache creation per network
namespace context and PipeFS registration/unregistration on MOUNT/UMOUNT
events.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/fs/nfs/cache_lib.c b/fs/nfs/cache_lib.c
index c98b439332fc..d62a8951cb12 100644
--- a/fs/nfs/cache_lib.c
+++ b/fs/nfs/cache_lib.c
@@ -120,6 +120,7 @@ int nfs_cache_register(struct cache_detail *cd)
         mnt = rpc_get_mount();
         if (IS_ERR(mnt))
                 return PTR_ERR(mnt);
+        sunrpc_init_cache_detail(cd);
         ret = vfs_path_lookup(mnt->mnt_root, mnt, "/cache", 0, &path);
         if (ret)
                 goto err;
@@ -128,6 +129,7 @@ int nfs_cache_register(struct cache_detail *cd)
         if (!ret)
                 return ret;
 err:
+        sunrpc_destroy_cache_detail(cd);
         rpc_put_mount();
         return ret;
 }
@@ -135,6 +137,7 @@ err:
 void nfs_cache_unregister(struct cache_detail *cd)
 {
         sunrpc_cache_unregister_pipefs(cd);
+        sunrpc_destroy_cache_detail(cd);
         rpc_put_mount();
 }