Re: problems with nfs-server in 2.5 bk as of 030115

[Trond Myklebust <trond.myklebust@fys.uio.no>]

>>>>> " " == Martin Josefsson <gandalf@wlug.westbo.se> writes:

     > With two added ; the patch compiled and produced this output:

     > Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
     > rpc_destroy_client: rpc_rmdir(/portmap/clnteb10c63c) failed
     > with error -39 RPC: Couldn't create pipefs entry
     > /portmap/clnteb10c63c, error -17 RPC: Couldn't create pipefs
     > entry /portmap/clnteb10c63c, error -17 RPC: Couldn't create
     > pipefs entry /portmap/clnteb10c63c, error -17

Hmm... Does the following help?

Cheers,
  Trond

--- linux-2.5.59-00-fix/net/sunrpc/rpc_pipe.c.orig	2003-01-14 16:29:23.000000000 +0100
+++ linux-2.5.59-00-fix/net/sunrpc/rpc_pipe.c	2003-01-20 01:38:59.000000000 +0100
@@ -476,15 +476,16 @@
  * FIXME: This probably has races.
  */
 static void
-rpc_depopulate(struct dentry *dir)
+rpc_depopulate(struct dentry *parent)
 {
+	struct inode *dir = parent->d_inode;
 	LIST_HEAD(head);
 	struct list_head *pos, *next;
 	struct dentry *dentry;
 
-	down(&dir->d_inode->i_sem);
+	down(&dir->i_sem);
 	spin_lock(&dcache_lock);
-	list_for_each_safe(pos, next, &dir->d_subdirs) {
+	list_for_each_safe(pos, next, &parent->d_subdirs) {
 		dentry = list_entry(pos, struct dentry, d_child);
 		if (!d_unhashed(dentry)) {
 			dget_locked(dentry);
@@ -498,32 +499,34 @@
 		list_del_init(&dentry->d_hash);
 		if (dentry->d_inode) {
 			rpc_inode_setowner(dentry->d_inode, NULL);
-			simple_unlink(dir->d_inode, dentry);
+			simple_unlink(dir, dentry);
 		}
 		dput(dentry);
 	}
-	up(&dir->d_inode->i_sem);
+	up(&dir->i_sem);
 }
 
 static int
-rpc_populate(struct dentry *dir,
+rpc_populate(struct dentry *parent,
 		struct rpc_filelist *files,
 		int start, int eof)
 {
-	void *private = RPC_I(dir->d_inode)->private;
+	struct inode *inode, *dir = parent->d_inode;
+	void *private = RPC_I(dir)->private;
 	struct qstr name;
 	struct dentry *dentry;
-	struct inode *inode;
 	int mode, i;
+
+	down(&dir->i_sem);
 	for (i = start; i < eof; i++) {
 		name.name = files[i].name;
 		name.len = strlen(name.name);
 		name.hash = full_name_hash(name.name, name.len);
-		dentry = d_alloc(dir, &name);
+		dentry = d_alloc(parent, &name);
 		if (!dentry)
 			goto out_bad;
 		mode = files[i].mode;
-		inode = rpc_get_inode(dir->d_inode->i_sb, mode);
+		inode = rpc_get_inode(dir->i_sb, mode);
 		if (!inode) {
 			dput(dentry);
 			goto out_bad;
@@ -534,13 +537,15 @@
 		if (private)
 			rpc_inode_setowner(inode, private);
 		if (S_ISDIR(mode))
-			dir->d_inode->i_nlink++;
+			dir->i_nlink++;
 		d_add(dentry, inode);
 	}
+	up(&dir->i_sem);
 	return 0;
 out_bad:
+	up(&dir->i_sem);
 	printk(KERN_WARNING "%s: %s failed to populate directory %s\n",
-			__FILE__, __FUNCTION__, dir->d_name.name);
+			__FILE__, __FUNCTION__, parent->d_name.name);
 	return -ENOMEM;
 }