From 8451d1f3788fbc0c8f00a178dc3618aaa3944c00 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Sat, 31 May 2014 08:58:09 +0200
Subject: [PATCH 5/8] isofs: use a hard reference for file pagers

When a file pager is created, a reference is added to the associated
struct node.  Previously, a weak reference was used.

A weak refeference requires that we might give it up on request.
There is no such mechanism here. Instead, we give it up when the pager
is destroyed.

* isofs/pager.c (pager_clear_user_data): Use a hard reference instead.
(diskfs_get_filemap): Likewise.
---
 isofs/pager.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/isofs/pager.c b/isofs/pager.c
index d72a514..7753c85 100644
--- a/isofs/pager.c
+++ b/isofs/pager.c
@@ -125,7 +125,7 @@ pager_clear_user_data (struct user_pager_info *upi)
       if (upi->np->dn->fileinfo == upi)
 	upi->np->dn->fileinfo = 0;
       pthread_spin_unlock (&node2pagelock);
-      diskfs_nrele_light (upi->np);
+      diskfs_nrele (upi->np);
     }
   free (upi);
 }
@@ -177,12 +177,12 @@ diskfs_get_filemap (struct node *np, vm_prot_t prot)
 	upi = malloc (sizeof (struct user_pager_info));
 	upi->type = FILE_DATA;
 	upi->np = np;
-	diskfs_nref_light (np);
+	diskfs_nref (np);
 	upi->p = pager_create (upi, pager_bucket, 1,
 			       MEMORY_OBJECT_COPY_DELAY, 0);
 	if (upi->p == 0)
 	  {
-	    diskfs_nrele_light (np);
+	    diskfs_nrele (np);
 	    free (upi);
 	    pthread_spin_unlock (&node2pagelock);
 	    return MACH_PORT_NULL;
-- 
2.0.0.rc2