Introduce path_put()

* Add path_put() functions for releasing a reference to the dentry and
  vfsmount of a struct path in the right order

* Switch from path_release(nd) to path_put(&nd->path)

* Rename dput_path() to path_put_conditional()

[akpm@linux-foundation.org: fix cifs]
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Cc: <linux-fsdevel@vger.kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Steven French <sfrench@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 2ac0e30285c2..717413f07e9a 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -177,7 +177,7 @@ static int expkey_parse(struct cache_detail *cd, char *mesg, int mlen)
                         cache_put(&ek->h, &svc_expkey_cache);
                 else
                         err = -ENOMEM;
-                path_release(&nd);
+                path_put(&nd.path);
         }
         cache_flush();
  out:
@@ -630,7 +630,7 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
         kfree(exp.ex_uuid);
         kfree(exp.ex_path);
         if (nd.path.dentry)
-                path_release(&nd);
+                path_put(&nd.path);
  out_no_path:
         if (dom)
                 auth_domain_put(dom);
@@ -1098,7 +1098,7 @@ finish:
                 cache_put(&fsid_key->h, &svc_expkey_cache);
         if (clp)
                 auth_domain_put(clp);
-        path_release(&nd);
+        path_put(&nd.path);
 out_unlock:
         exp_writeunlock();
 out:
@@ -1150,7 +1150,7 @@ exp_unexport(struct nfsctl_export *nxp)
 
         err = -EINVAL;
         exp = exp_get_by_name(dom, nd.path.mnt, nd.path.dentry, NULL);
-        path_release(&nd);
+        path_put(&nd.path);
         if (IS_ERR(exp))
                 goto out_domain;
 
@@ -1209,7 +1209,7 @@ exp_rootfh(svc_client *clp, char *path, struct knfsd_fh *f, int maxsize)
         fh_put(&fh);
         exp_put(exp);
 out:
-        path_release(&nd);
+        path_put(&nd.path);
         return err;
 }