1 files changed, 14 insertions, 5 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index cb99fd90a9ac..f03d9d5f5ba4 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1305,7 +1305,7 @@ static const struct rpc_call_ops nfs4_close_ops = {
  *
  * NOTE: Caller must be holding the sp->so_owner semaphore!
  */
-int nfs4_do_close(struct path *path, struct nfs4_state *state)
+int nfs4_do_close(struct path *path, struct nfs4_state *state, int wait)
 {
         struct nfs_server *server = NFS_SERVER(state->inode);
         struct nfs4_closedata *calldata;
@@ -1333,8 +1333,11 @@ int nfs4_do_close(struct path *path, struct nfs4_state *state)
         task = rpc_run_task(server->client, RPC_TASK_ASYNC, &nfs4_close_ops, calldata);
         if (IS_ERR(task))
                 return PTR_ERR(task);
+        status = 0;
+        if (wait)
+                status = rpc_wait_for_completion_task(task);
         rpc_put_task(task);
-        return 0;
+        return status;
 out_free_calldata:
         kfree(calldata);
 out:
@@ -1365,13 +1368,14 @@ static int nfs4_intent_set_file(struct nameidata *nd, struct path *path, struct
         }
         ret = PTR_ERR(filp);
 out_close:
-        nfs4_close_state(path, state, nd->intent.open.flags);
+        nfs4_close_sync(path, state, nd->intent.open.flags);
         return ret;
 }
 
 struct dentry *
 nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
 {
+        struct dentry *parent;
         struct path path = {
                 .mnt = nd->mnt,
                 .dentry = dentry,
@@ -1394,6 +1398,9 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
         cred = rpcauth_lookupcred(NFS_CLIENT(dir)->cl_auth, 0);
         if (IS_ERR(cred))
                 return (struct dentry *)cred;
+        parent = dentry->d_parent;
+        /* Protect against concurrent sillydeletes */
+        nfs_block_sillyrename(parent);
         state = nfs4_do_open(dir, &path, nd->intent.open.flags, &attr, cred);
         put_rpccred(cred);
         if (IS_ERR(state)) {
@@ -1401,12 +1408,14 @@ nfs4_atomic_open(struct inode *dir, struct dentry *dentry, struct nameidata *nd)
                         d_add(dentry, NULL);
                         nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
                 }
+                nfs_unblock_sillyrename(parent);
                 return (struct dentry *)state;
         }
         res = d_add_unique(dentry, igrab(state->inode));
         if (res != NULL)
                 path.dentry = res;
         nfs_set_verifier(path.dentry, nfs_save_change_attribute(dir));
+        nfs_unblock_sillyrename(parent);
         nfs4_intent_set_file(nd, &path, state);
         return res;
 }
@@ -1444,7 +1453,7 @@ nfs4_open_revalidate(struct inode *dir, struct dentry *dentry, int openflags, st
                 nfs4_intent_set_file(nd, &path, state);
                 return 1;
         }
-        nfs4_close_state(&path, state, openflags);
+        nfs4_close_sync(&path, state, openflags);
 out_drop:
         d_drop(dentry);
         return 0;
@@ -1898,7 +1907,7 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
         if (status == 0 && (nd->flags & LOOKUP_OPEN) != 0)
                 status = nfs4_intent_set_file(nd, &path, state);
         else
-                nfs4_close_state(&path, state, flags);
+                nfs4_close_sync(&path, state, flags);
 out:
         return status;
 }