drop old patch series

9 files changed, 0 insertions, 2589 deletions

diff --git a/debian/patches/0001-tmpfs-use-a-thread-timeout.patch b/debian/patches/0001-tmpfs-use-a-thread-timeout.patch
deleted file mode 100644
index a5f7bef7..00000000
--- a/debian/patches/0001-tmpfs-use-a-thread-timeout.patch
+++ /dev/null
@@ -1,36 +0,0 @@
-From be3c1c3841192b4e85a0063d3893a9f8ff062b4d Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Wed, 28 May 2014 16:18:23 +0200
-Subject: [PATCH 1/8] tmpfs: use a thread timeout
-
-There is no need to keep all the threads around, just the master
-thread.
-
-* tmpfs/tmpfs (diskfs_thread_function): Use a thread timeout.
----
- tmpfs/tmpfs.c | 3 ++-
- 1 file changed, 2 insertions(+), 1 deletion(-)
-
-diff --git a/tmpfs/tmpfs.c b/tmpfs/tmpfs.c
-index a45d343..718c6d8 100644
---- a/tmpfs/tmpfs.c
-+++ b/tmpfs/tmpfs.c
-@@ -296,13 +296,14 @@ diskfs_append_args (char **argz, size_t *argz_len)
- static void *
- diskfs_thread_function (void *demuxer)
- {
-+  static int thread_timeout = 1000 * 60 * 2; /* two minutes */
-   error_t err;
- 
-   do
-     {
-       ports_manage_port_operations_multithread (diskfs_port_bucket,
- 						(ports_demuxer_type) demuxer,
--						0,
-+						thread_timeout,
- 						0,
- 						0);
-       err = diskfs_shutdown (0);
--- 
-2.0.0.rc2
-
diff --git a/debian/patches/0002-libports-use-a-global-hash-table-for-the-lookups.patch b/debian/patches/0002-libports-use-a-global-hash-table-for-the-lookups.patch
deleted file mode 100644
index dbf599fd..00000000
--- a/debian/patches/0002-libports-use-a-global-hash-table-for-the-lookups.patch
+++ /dev/null
@@ -1,668 +0,0 @@
-From 1d637232cbff225235bcc4bafbb6b0f4a2559295 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Sat, 3 May 2014 03:53:41 +0200
-Subject: [PATCH 2/8] libports: use a global hash table for the lookups
-
-Previously, libports used a hash table per port bucket.  This makes
-looking up a port difficult if one does not know the port bucket, as
-one has to iterate over all buckets and do a hash table lookup each.
-
-Having to iterate over the buckets makes it necessary to keep a list
-of all buckets, which has to be updated and protected by a lock as
-well.
-
-Also, the current code in _ports_bucket_class_iterate iterates over
-the hash table associated with the bucket given.  When
-ports_class_iterate calls this common function, it obtains a reference
-to the bucket from one of the ports in the given class.  This will not
-work if a class contains ports in different port buckets.  This
-limitation is not documented as far as I can see.  Again, having to
-maintain this list has its cost and requires serialization.
-
-Use a global hash table for lookups instead.  Keep the per-bucket hash
-tables for efficient iteration over buckets.  Furthermore, serialize
-access to all hash tables using a separate lock.  Remove the linked
-lists of all buckets and all ports in a class.
-
-* libports/bucket-iterate.c (ports_bucket_iterate): Acquire
-_ports_htable_lock.  Also, generalize ports_bucket_iterate so that it
-takes a pointer to a hash table as first argument.
-(ports_bucket_iterate): Ajust call to former function accordingly.
-* libports/class-iterate.c (ports_class_iterate): Just call the
-generalized _ports_bucket_class_iterate with the global hash table as
-argument.
-* libports/ports.h (struct port_info): Remove the port class links.
-(struct port_bucket): Remove the hash table, and the all buckets link.
-(_ports_all_buckets): Remove declaration.
-(_ports_htable): New global hash table.
-(_ports_htable_lock): Protected by this lock.
-* libports/claim-right.c: Adjust accordingly.
-* libports/complete-deallocate.c: Likewise.
-* libports/create-bucket.c: Likewise.
-* libports/create-class.c: Likewise.
-* libports/create-internal.c: Likewise.
-* libports/destroy-right.c: Likewise.
-* libports/import-port.c: Likewise.
-* libports/lookup-port.c: Likewise.
-* libports/reallocate-from-external.c: Likewise.
-* libports/reallocate-port.c: Likewise.
-* libports/transfer-right.c: Likewise.
-* libports/inhibit-all-rpcs.c: Iterate over the hash table.
-* libports/inhibit-bucket-rpcs.c: Likewise, but filter using bucket.
-* libports/inhibit-class-rpcs.c: Likewise, but filter using class.
-* libports/init.c (_ports_htable): Initialize.
-(_ports_htable_lock): Likewise.
----
- libports/bucket-iterate.c           | 22 +++++++++++++++-------
- libports/claim-right.c              |  5 ++++-
- libports/class-iterate.c            | 10 +---------
- libports/complete-deallocate.c      |  7 +++----
- libports/create-bucket.c            |  6 ------
- libports/create-class.c             |  1 -
- libports/create-internal.c          | 19 +++++++++++++------
- libports/destroy-right.c            |  5 +++--
- libports/import-port.c              | 19 +++++++++++++------
- libports/inhibit-all-rpcs.c         | 27 +++++++++++++--------------
- libports/inhibit-bucket-rpcs.c      |  3 ++-
- libports/inhibit-class-rpcs.c       | 27 ++++++++++++++++++---------
- libports/init.c                     |  7 ++++++-
- libports/lookup-port.c              | 23 +++++++++--------------
- libports/ports.h                    | 22 +++++++++++++++++-----
- libports/reallocate-from-external.c | 15 +++++++++++----
- libports/reallocate-port.c          |  9 ++++++++-
- libports/transfer-right.c           | 18 ++++++++++++++----
- 18 files changed, 150 insertions(+), 95 deletions(-)
-
-diff --git a/libports/bucket-iterate.c b/libports/bucket-iterate.c
-index babc204..88f082f 100644
---- a/libports/bucket-iterate.c
-+++ b/libports/bucket-iterate.c
-@@ -25,7 +25,7 @@
- /* Internal entrypoint for both ports_bucket_iterate and ports_class_iterate.
-    If CLASS is non-null, call FUN only for ports in that class.  */
- error_t
--_ports_bucket_class_iterate (struct port_bucket *bucket,
-+_ports_bucket_class_iterate (struct hurd_ihash *ht,
- 			     struct port_class *class,
- 			     error_t (*fun)(void *))
- {
-@@ -36,23 +36,24 @@ _ports_bucket_class_iterate (struct port_bucket *bucket,
-   error_t err;
- 
-   pthread_mutex_lock (&_ports_lock);
-+  pthread_rwlock_rdlock (&_ports_htable_lock);
- 
--  if (bucket->htable.nr_items == 0)
-+  if (ht->nr_items == 0)
-     {
--      pthread_mutex_unlock (&_ports_lock);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-       return 0;
-     }
- 
--  nr_items = bucket->htable.nr_items;
-+  nr_items = ht->nr_items;
-   p = malloc (nr_items * sizeof *p);
-   if (p == NULL)
-     {
--      pthread_mutex_unlock (&_ports_lock);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-       return ENOMEM;
-     }
- 
-   n = 0;
--  HURD_IHASH_ITERATE (&bucket->htable, arg)
-+  HURD_IHASH_ITERATE (ht, arg)
-     {
-       struct port_info *const pi = arg;
- 
-@@ -63,8 +64,15 @@ _ports_bucket_class_iterate (struct port_bucket *bucket,
- 	  n++;
- 	}
-     }
-+  pthread_rwlock_unlock (&_ports_htable_lock);
-   pthread_mutex_unlock (&_ports_lock);
- 
-+  if (n == 0)
-+    {
-+      free (p);
-+      return 0;
-+    }
-+
-   if (n != nr_items)
-     {
-       /* We allocated too much.  Release unused memory.  */
-@@ -89,5 +97,5 @@ error_t
- ports_bucket_iterate (struct port_bucket *bucket,
- 		      error_t (*fun)(void *))
- {
--  return _ports_bucket_class_iterate (bucket, 0, fun);
-+  return _ports_bucket_class_iterate (&bucket->htable, NULL, fun);
- }
-diff --git a/libports/claim-right.c b/libports/claim-right.c
-index 4851ea3..85592ff 100644
---- a/libports/claim-right.c
-+++ b/libports/claim-right.c
-@@ -34,10 +34,13 @@ ports_claim_right (void *portstruct)
-   if (ret == MACH_PORT_NULL)
-     return ret;
- 
--  pthread_mutex_lock (&_ports_lock);
-+  pthread_rwlock_wrlock (&_ports_htable_lock);
-+  hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
-   hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-+  pthread_rwlock_unlock (&_ports_htable_lock);
-   err = mach_port_move_member (mach_task_self (), ret, MACH_PORT_NULL);
-   assert_perror (err);
-+  pthread_mutex_lock (&_ports_lock);
-   pi->port_right = MACH_PORT_NULL;
-   if (pi->flags & PORT_HAS_SENDRIGHTS)
-     {
-diff --git a/libports/class-iterate.c b/libports/class-iterate.c
-index 1f8878a..df33818 100644
---- a/libports/class-iterate.c
-+++ b/libports/class-iterate.c
-@@ -23,13 +23,5 @@ error_t
- ports_class_iterate (struct port_class *class,
- 		     error_t (*fun)(void *))
- {
--  pthread_mutex_lock (&_ports_lock);
--  if (class->ports != 0)
--    {
--      struct port_bucket *bucket = class->ports->bucket;
--      pthread_mutex_unlock (&_ports_lock);
--      return _ports_bucket_class_iterate (bucket, class, fun);
--    }
--  pthread_mutex_unlock (&_ports_lock);
--  return 0;
-+  return _ports_bucket_class_iterate (&_ports_htable, class, fun);
- }
-diff --git a/libports/complete-deallocate.c b/libports/complete-deallocate.c
-index 8ce095b..4768dab 100644
---- a/libports/complete-deallocate.c
-+++ b/libports/complete-deallocate.c
-@@ -29,16 +29,15 @@ _ports_complete_deallocate (struct port_info *pi)
- 
-   if (pi->port_right)
-     {
-+      pthread_rwlock_wrlock (&_ports_htable_lock);
-+      hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
-       hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-       mach_port_mod_refs (mach_task_self (), pi->port_right,
- 			  MACH_PORT_RIGHT_RECEIVE, -1);
-       pi->port_right = MACH_PORT_NULL;
-     }
- 
--  *pi->prevp = pi->next;
--  if (pi->next)
--    pi->next->prevp = pi->prevp;
--
-   pi->bucket->count--;
-   pi->class->count--;
- 
-diff --git a/libports/create-bucket.c b/libports/create-bucket.c
-index 52d50c3..2c5f1b6 100644
---- a/libports/create-bucket.c
-+++ b/libports/create-bucket.c
-@@ -48,11 +48,5 @@ ports_create_bucket ()
- 
-   hurd_ihash_init (&ret->htable, offsetof (struct port_info, hentry));
-   ret->rpcs = ret->flags = ret->count = 0;
--
--  pthread_mutex_lock (&_ports_lock);
--  ret->next = _ports_all_buckets;
--  _ports_all_buckets = ret;
--  pthread_mutex_unlock (&_ports_lock);
--
-   return ret;
- }
-diff --git a/libports/create-class.c b/libports/create-class.c
-index 12c8add..782f52b 100644
---- a/libports/create-class.c
-+++ b/libports/create-class.c
-@@ -39,7 +39,6 @@ ports_create_class (void (*clean_routine)(void *),
-   cl->dropweak_routine = dropweak_routine;
-   cl->flags = 0;
-   cl->rpcs = 0;
--  cl->ports = NULL;
-   cl->count = 0;
-   cl->uninhibitable_rpcs = ports_default_uninhibitable_rpcs;
- 
-diff --git a/libports/create-internal.c b/libports/create-internal.c
-index 8551297..8543986 100644
---- a/libports/create-internal.c
-+++ b/libports/create-internal.c
-@@ -81,15 +81,22 @@ _ports_create_port_internal (struct port_class *class,
-       goto loop;
-     }
- 
-+  pthread_rwlock_wrlock (&_ports_htable_lock);
-+  err = hurd_ihash_add (&_ports_htable, port, pi);
-+  if (err)
-+    {
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-+      goto lose;
-+    }
-   err = hurd_ihash_add (&bucket->htable, port, pi);
-   if (err)
--    goto lose;
-+    {
-+      hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-+      goto lose;
-+    }
-+  pthread_rwlock_unlock (&_ports_htable_lock);
- 
--  pi->next = class->ports;
--  pi->prevp = &class->ports;
--  if (class->ports)
--    class->ports->prevp = &pi->next;
--  class->ports = pi;
-   bucket->count++;
-   class->count++;
-   pthread_mutex_unlock (&_ports_lock);
-diff --git a/libports/destroy-right.c b/libports/destroy-right.c
-index 65e19c7..448b379 100644
---- a/libports/destroy-right.c
-+++ b/libports/destroy-right.c
-@@ -30,12 +30,13 @@ ports_destroy_right (void *portstruct)
- 
-   if (pi->port_right != MACH_PORT_NULL)
-     {
--      pthread_mutex_lock (&_ports_lock);
-+      pthread_rwlock_wrlock (&_ports_htable_lock);
-+      hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
-       hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-       err = mach_port_mod_refs (mach_task_self (), pi->port_right,
- 				MACH_PORT_RIGHT_RECEIVE, -1);
-       assert_perror (err);
--      pthread_mutex_unlock (&_ports_lock);
- 
-       pi->port_right = MACH_PORT_NULL;
- 
-diff --git a/libports/import-port.c b/libports/import-port.c
-index 226f47e..2660672 100644
---- a/libports/import-port.c
-+++ b/libports/import-port.c
-@@ -75,15 +75,22 @@ ports_import_port (struct port_class *class, struct port_bucket *bucket,
-       goto loop;
-     }
- 
-+  pthread_rwlock_wrlock (&_ports_htable_lock);
-+  err = hurd_ihash_add (&_ports_htable, port, pi);
-+  if (err)
-+    {
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-+      goto lose;
-+    }
-   err = hurd_ihash_add (&bucket->htable, port, pi);
-   if (err)
--    goto lose;
-+    {
-+      hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-+      goto lose;
-+    }
-+  pthread_rwlock_unlock (&_ports_htable_lock);
- 
--  pi->next = class->ports;
--  pi->prevp = &class->ports;
--  if (class->ports)
--    class->ports->prevp = &pi->next;
--  class->ports = pi;
-   bucket->count++;
-   class->count++;
-   pthread_mutex_unlock (&_ports_lock);
-diff --git a/libports/inhibit-all-rpcs.c b/libports/inhibit-all-rpcs.c
-index d4a54ba..27e2ec5 100644
---- a/libports/inhibit-all-rpcs.c
-+++ b/libports/inhibit-all-rpcs.c
-@@ -36,24 +36,23 @@ ports_inhibit_all_rpcs ()
-       struct port_bucket *bucket;
-       int this_one = 0;
- 
--      for (bucket = _ports_all_buckets; bucket; bucket = bucket->next)
-+      pthread_rwlock_rdlock (&_ports_htable_lock);
-+      HURD_IHASH_ITERATE (&_ports_htable, portstruct)
- 	{
--	  HURD_IHASH_ITERATE (&bucket->htable, portstruct)
-+	  struct rpc_info *rpc;
-+	  struct port_info *pi = portstruct;
-+
-+	  for (rpc = pi->current_rpcs; rpc; rpc = rpc->next)
- 	    {
--	      struct rpc_info *rpc;
--	      struct port_info *pi = portstruct;
--	  
--	      for (rpc = pi->current_rpcs; rpc; rpc = rpc->next)
--		{
--		  /* Avoid cancelling the calling thread if it's currently
--		     handling a RPC.  */
--		  if (rpc->thread == hurd_thread_self ())
--		    this_one = 1;
--		  else
--		    hurd_thread_cancel (rpc->thread);
--		}
-+	      /* Avoid cancelling the calling thread if it's currently
-+		 handling a RPC.  */
-+	      if (rpc->thread == hurd_thread_self ())
-+		this_one = 1;
-+	      else
-+		hurd_thread_cancel (rpc->thread);
- 	    }
- 	}
-+      pthread_rwlock_unlock (&_ports_htable_lock);
- 
-       while (_ports_total_rpcs > this_one)
- 	{
-diff --git a/libports/inhibit-bucket-rpcs.c b/libports/inhibit-bucket-rpcs.c
-index 965aa03..82efdf5 100644
---- a/libports/inhibit-bucket-rpcs.c
-+++ b/libports/inhibit-bucket-rpcs.c
-@@ -35,6 +35,7 @@ ports_inhibit_bucket_rpcs (struct port_bucket *bucket)
-     {
-       int this_one = 0;
- 
-+      pthread_rwlock_rdlock (&_ports_htable_lock);
-       HURD_IHASH_ITERATE (&bucket->htable, portstruct)
- 	{
- 	  struct rpc_info *rpc;
-@@ -49,7 +50,7 @@ ports_inhibit_bucket_rpcs (struct port_bucket *bucket)
- 		hurd_thread_cancel (rpc->thread);
- 	    }
- 	}
--
-+      pthread_rwlock_unlock (&_ports_htable_lock);
- 
-       while (bucket->rpcs > this_one)
- 	{
-diff --git a/libports/inhibit-class-rpcs.c b/libports/inhibit-class-rpcs.c
-index 7ee8653..9a87a5f 100644
---- a/libports/inhibit-class-rpcs.c
-+++ b/libports/inhibit-class-rpcs.c
-@@ -36,15 +36,24 @@ ports_inhibit_class_rpcs (struct port_class *class)
-       struct rpc_info *rpc;
-       int this_one = 0;
- 
--      for (pi = class->ports; pi; pi = pi->next)
--	for (rpc = pi->current_rpcs; rpc; rpc = rpc->next)
--	  {
--	    /* Avoid cancelling the calling thread.  */
--	    if (rpc->thread == hurd_thread_self ())
--	      this_one = 1;
--	    else
--	      hurd_thread_cancel (rpc->thread);
--	  }
-+      pthread_rwlock_rdlock (&_ports_htable_lock);
-+      HURD_IHASH_ITERATE (&_ports_htable, portstruct)
-+	{
-+	  struct rpc_info *rpc;
-+	  struct port_info *pi = portstruct;
-+	  if (pi->class != class)
-+	    continue;
-+
-+	  for (rpc = pi->current_rpcs; rpc; rpc = rpc->next)
-+	    {
-+	      /* Avoid cancelling the calling thread.  */
-+	      if (rpc->thread == hurd_thread_self ())
-+		this_one = 1;
-+	      else
-+		hurd_thread_cancel (rpc->thread);
-+	    }
-+	}
-+      pthread_rwlock_unlock (&_ports_htable_lock);
- 
-       while (class->rpcs > this_one)
- 	{
-diff --git a/libports/init.c b/libports/init.c
-index 3ef5388..4a68cb8 100644
---- a/libports/init.c
-+++ b/libports/init.c
-@@ -19,9 +19,14 @@
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
- 
- #include "ports.h"
-+#include <stddef.h>
- 
- pthread_mutex_t _ports_lock = PTHREAD_MUTEX_INITIALIZER;
- pthread_cond_t _ports_block = PTHREAD_COND_INITIALIZER;
--struct port_bucket *_ports_all_buckets;
-+
-+struct hurd_ihash _ports_htable =
-+  HURD_IHASH_INITIALIZER (offsetof (struct port_info, ports_htable_entry));
-+pthread_rwlock_t _ports_htable_lock = PTHREAD_RWLOCK_INITIALIZER;
-+
- int _ports_total_rpcs;
- int _ports_flags;
-diff --git a/libports/lookup-port.c b/libports/lookup-port.c
-index f79f6f0..858ee11 100644
---- a/libports/lookup-port.c
-+++ b/libports/lookup-port.c
-@@ -26,27 +26,22 @@ ports_lookup_port (struct port_bucket *bucket,
- 		   mach_port_t port,
- 		   struct port_class *class)
- {
--  struct port_info *pi = 0;
--  
-+  struct port_info *pi;
-+
-   pthread_mutex_lock (&_ports_lock);
-+  pthread_rwlock_rdlock (&_ports_htable_lock);
- 
--  if (bucket)
--    pi = hurd_ihash_find (&bucket->htable, port);
--  else
--    for (bucket = _ports_all_buckets; bucket; bucket = bucket->next)
--      {
--	pi = hurd_ihash_find (&bucket->htable, port);
--	if (pi)
--	  break;
--      }
--  
--  if (pi && class && pi->class != class)
-+  pi = hurd_ihash_find (&_ports_htable, port);
-+  if (pi
-+      && ((class && pi->class != class)
-+          || (bucket && pi->bucket != bucket)))
-     pi = 0;
- 
-   if (pi)
-     pi->refcnt++;
- 
-+  pthread_rwlock_unlock (&_ports_htable_lock);
-   pthread_mutex_unlock (&_ports_lock);
--  
-+
-   return pi;
- }
-diff --git a/libports/ports.h b/libports/ports.h
-index 7f13124..6922162 100644
---- a/libports/ports.h
-+++ b/libports/ports.h
-@@ -48,7 +48,7 @@ struct port_info
-   struct rpc_info *current_rpcs;
-   struct port_bucket *bucket;
-   hurd_ihash_locp_t hentry;
--  struct port_info *next, **prevp; /* links on port_class list */
-+  hurd_ihash_locp_t ports_htable_entry;
- };
- typedef struct port_info *port_info_t;
- 
-@@ -61,11 +61,12 @@ typedef struct port_info *port_info_t;
- struct port_bucket
- {
-   mach_port_t portset;
-+  /* Per-bucket hash table used for fast iteration.  Access must be
-+     serialized using _ports_htable_lock.  */
-   struct hurd_ihash htable;
-   int rpcs;
-   int flags;
-   int count;
--  struct port_bucket *next;
- };
- /* FLAGS above are the following: */
- #define PORT_BUCKET_INHIBITED	PORTS_INHIBITED
-@@ -78,7 +79,6 @@ struct port_class
- {
-   int flags;
-   int rpcs;
--  struct port_info *ports;
-   int count;
-   void (*clean_routine) (void *);
-   void (*dropweak_routine) (void *);
-@@ -277,7 +277,7 @@ error_t ports_class_iterate (struct port_class *class,
- 			     error_t (*fun)(void *port));
- 
- /* Internal entrypoint for above two.  */
--error_t _ports_bucket_class_iterate (struct port_bucket *bucket,
-+error_t _ports_bucket_class_iterate (struct hurd_ihash *ht,
- 				     struct port_class *class,
- 				     error_t (*fun)(void *port));
- 
-@@ -402,7 +402,19 @@ extern kern_return_t
- /* Private data */
- extern pthread_mutex_t _ports_lock;
- extern pthread_cond_t _ports_block;
--extern struct port_bucket *_ports_all_buckets;
-+
-+/* A global hash table mapping port names to port_info objects.  This
-+   table is used for port lookups and to iterate over classes.
-+
-+   A port in this hash table carries an implicit light reference.
-+   When the reference counts reach zero, we call
-+   _ports_complete_deallocate.  There we reacquire our lock
-+   momentarily to check whether someone else reacquired a reference
-+   through the hash table.  */
-+extern struct hurd_ihash _ports_htable;
-+/* Access to the hash table is protected by this lock.  */
-+extern pthread_rwlock_t _ports_htable_lock;
-+
- extern int _ports_total_rpcs;
- extern int _ports_flags;
- #define _PORTS_INHIBITED	PORTS_INHIBITED
-diff --git a/libports/reallocate-from-external.c b/libports/reallocate-from-external.c
-index 8cccb2a..9944b39 100644
---- a/libports/reallocate-from-external.c
-+++ b/libports/reallocate-from-external.c
-@@ -43,8 +43,11 @@ ports_reallocate_from_external (void *portstruct, mach_port_t receive)
- 			    MACH_PORT_RIGHT_RECEIVE, -1);
-   assert_perror (err);
- 
-+  pthread_rwlock_wrlock (&_ports_htable_lock);
-+  hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
-   hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
--  
-+  pthread_rwlock_unlock (&_ports_htable_lock);
-+
-   if ((pi->flags & PORT_HAS_SENDRIGHTS) && !stat.mps_srights)
-     {
-       dropref = 1;
-@@ -59,11 +62,15 @@ ports_reallocate_from_external (void *portstruct, mach_port_t receive)
-   pi->port_right = receive;
-   pi->cancel_threshold = 0;
-   pi->mscount = stat.mps_mscount;
--  
--  err = hurd_ihash_add (&pi->bucket->htable, receive, pi);
-+
-+  pthread_rwlock_wrlock (&_ports_htable_lock);
-+  err = hurd_ihash_add (&_ports_htable, receive, pi);
-   assert_perror (err);
-+  err = hurd_ihash_add (&pi->bucket->htable, receive, pi);
-+  pthread_rwlock_unlock (&_ports_htable_lock);
-   pthread_mutex_unlock (&_ports_lock);
--  
-+  assert_perror (err);
-+
-   mach_port_move_member (mach_task_self (), receive, pi->bucket->portset);
-   
-   if (stat.mps_srights)
-diff --git a/libports/reallocate-port.c b/libports/reallocate-port.c
-index d2adaeb..cc534eb 100644
---- a/libports/reallocate-port.c
-+++ b/libports/reallocate-port.c
-@@ -36,7 +36,10 @@ ports_reallocate_port (void *portstruct)
- 			    MACH_PORT_RIGHT_RECEIVE, -1);
-   assert_perror (err);
- 
-+  pthread_rwlock_wrlock (&_ports_htable_lock);
-+  hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
-   hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-+  pthread_rwlock_unlock (&_ports_htable_lock);
- 
-   err = mach_port_allocate (mach_task_self (), MACH_PORT_RIGHT_RECEIVE,
- 			    &pi->port_right);
-@@ -48,9 +51,13 @@ ports_reallocate_port (void *portstruct)
-     }
-   pi->cancel_threshold = 0;
-   pi->mscount = 0;
--  err = hurd_ihash_add (&pi->bucket->htable, pi->port_right, pi);
-+  pthread_rwlock_wrlock (&_ports_htable_lock);
-+  err = hurd_ihash_add (&_ports_htable, pi->port_right, pi);
-   assert_perror (err);
-+  err = hurd_ihash_add (&pi->bucket->htable, pi->port_right, pi);
-+  pthread_rwlock_unlock (&_ports_htable_lock);
-   pthread_mutex_unlock (&_ports_lock);
-+  assert_perror (err);
- 
-   err = mach_port_move_member (mach_task_self (), pi->port_right, 
- 			       pi->bucket->portset);
-diff --git a/libports/transfer-right.c b/libports/transfer-right.c
-index 72488a9..3f48290 100644
---- a/libports/transfer-right.c
-+++ b/libports/transfer-right.c
-@@ -41,7 +41,10 @@ ports_transfer_right (void *tostruct,
-   port = frompi->port_right;
-   if (port != MACH_PORT_NULL)
-     {
-+      pthread_rwlock_wrlock (&_ports_htable_lock);
-+      hurd_ihash_locp_remove (&_ports_htable, frompi->ports_htable_entry);
-       hurd_ihash_locp_remove (&frompi->bucket->htable, frompi->hentry);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-       frompi->port_right = MACH_PORT_NULL;
-       if (frompi->flags & PORT_HAS_SENDRIGHTS)
- 	{
-@@ -54,7 +57,10 @@ ports_transfer_right (void *tostruct,
-   /* Destroy the existing right in TOPI. */
-   if (topi->port_right != MACH_PORT_NULL)
-     {
-+      pthread_rwlock_wrlock (&_ports_htable_lock);
-+      hurd_ihash_locp_remove (&_ports_htable, topi->ports_htable_entry);
-       hurd_ihash_locp_remove (&topi->bucket->htable, topi->hentry);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-       err = mach_port_mod_refs (mach_task_self (), topi->port_right,
- 				MACH_PORT_RIGHT_RECEIVE, -1);
-       assert_perror (err);
-@@ -74,10 +80,16 @@ ports_transfer_right (void *tostruct,
-   topi->port_right = port;
-   topi->cancel_threshold = frompi->cancel_threshold;
-   topi->mscount = frompi->mscount;
--  
-+
-+  pthread_mutex_unlock (&_ports_lock);
-+
-   if (port)
-     {
-+      pthread_rwlock_wrlock (&_ports_htable_lock);
-+      err = hurd_ihash_add (&_ports_htable, port, topi);
-+      assert_perror (err);
-       err = hurd_ihash_add (&topi->bucket->htable, port, topi);
-+      pthread_rwlock_unlock (&_ports_htable_lock);
-       assert_perror (err);
-       if (topi->bucket != frompi->bucket)
-         {
-@@ -86,9 +98,7 @@ ports_transfer_right (void *tostruct,
- 	  assert_perror (err);
- 	}
-     }
--  
--  pthread_mutex_unlock (&_ports_lock);
--  
-+
-   /* Take care of any lowered reference counts. */
-   if (dereffrompi)
-     ports_port_deref (frompi);
--- 
-2.0.0.rc2
-
diff --git a/debian/patches/0003-libports-lock-less-reference-counting-for-port_info-.patch b/debian/patches/0003-libports-lock-less-reference-counting-for-port_info-.patch
deleted file mode 100644
index b588f458..00000000
--- a/debian/patches/0003-libports-lock-less-reference-counting-for-port_info-.patch
+++ /dev/null
@@ -1,344 +0,0 @@
-From 9b7b6c19b25420108f2cfeefb881ddeab09c3063 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Sat, 3 May 2014 01:02:35 +0200
-Subject: [PATCH 3/8] libports: lock-less reference counting for port_info
- objects
-
-* libports/ports.h (struct port_info): Use the new type.
-* libports/lookup-port.c: No need to lock _ports_lock anymore.
-* libports/bucket-iterate.c: Likewise.
-* libports/complete-deallocate.c: Check if someone reacquired a
-reference through a hash table lookup.
-* libports/create-internal.c: Use the new reference counting primitives.
-* libports/get-right.c: Likewise.
-* libports/import-port.c: Likewise.
-* libports/port-deref-weak.c: Likewise.
-* libports/port-deref.c: Likewise.
-* libports/port-ref-weak.c: Likewise.
-* libports/port-ref.c: Likewise.
-* libports/reallocate-from-external.c: Likewise.
-* libports/transfer-right.c: Likewise.
-* utils/rpctrace.c: Likewise.
----
- libports/bucket-iterate.c           |  4 +---
- libports/complete-deallocate.c      | 14 ++++++++++++++
- libports/create-internal.c          |  3 +--
- libports/get-right.c                |  2 +-
- libports/import-port.c              |  3 +--
- libports/lookup-port.c              |  4 +---
- libports/port-deref-weak.c          | 10 +++-------
- libports/port-deref.c               | 34 ++++++++++++++++------------------
- libports/port-ref-weak.c            |  8 +++-----
- libports/port-ref.c                 |  8 +++-----
- libports/ports.h                    |  4 ++--
- libports/reallocate-from-external.c |  2 +-
- libports/transfer-right.c           |  2 +-
- utils/rpctrace.c                    | 10 ++++++++--
- 14 files changed, 56 insertions(+), 52 deletions(-)
-
-diff --git a/libports/bucket-iterate.c b/libports/bucket-iterate.c
-index 88f082f..bf6857a 100644
---- a/libports/bucket-iterate.c
-+++ b/libports/bucket-iterate.c
-@@ -35,7 +35,6 @@ _ports_bucket_class_iterate (struct hurd_ihash *ht,
-   size_t i, n, nr_items;
-   error_t err;
- 
--  pthread_mutex_lock (&_ports_lock);
-   pthread_rwlock_rdlock (&_ports_htable_lock);
- 
-   if (ht->nr_items == 0)
-@@ -59,13 +58,12 @@ _ports_bucket_class_iterate (struct hurd_ihash *ht,
- 
-       if (class == 0 || pi->class == class)
- 	{
--	  pi->refcnt++;
-+	  refcounts_ref (&pi->refcounts, NULL);
- 	  p[n] = pi;
- 	  n++;
- 	}
-     }
-   pthread_rwlock_unlock (&_ports_htable_lock);
--  pthread_mutex_unlock (&_ports_lock);
- 
-   if (n == 0)
-     {
-diff --git a/libports/complete-deallocate.c b/libports/complete-deallocate.c
-index 4768dab..0d852f5 100644
---- a/libports/complete-deallocate.c
-+++ b/libports/complete-deallocate.c
-@@ -29,15 +29,29 @@ _ports_complete_deallocate (struct port_info *pi)
- 
-   if (pi->port_right)
-     {
-+      struct references result;
-+
-       pthread_rwlock_wrlock (&_ports_htable_lock);
-+      refcounts_references (&pi->refcounts, &result);
-+      if (result.hard > 0 || result.weak > 0)
-+        {
-+          /* A reference was reacquired through a hash table lookup.
-+             It's fine, we didn't touch anything yet. */
-+          pthread_mutex_unlock (&_ports_htable_lock);
-+          return;
-+        }
-+
-       hurd_ihash_locp_remove (&_ports_htable, pi->ports_htable_entry);
-       hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-       pthread_rwlock_unlock (&_ports_htable_lock);
-+
-       mach_port_mod_refs (mach_task_self (), pi->port_right,
- 			  MACH_PORT_RIGHT_RECEIVE, -1);
-       pi->port_right = MACH_PORT_NULL;
-     }
- 
-+  pthread_mutex_lock (&_ports_lock);
-+
-   pi->bucket->count--;
-   pi->class->count--;
- 
-diff --git a/libports/create-internal.c b/libports/create-internal.c
-index 8543986..2d85931 100644
---- a/libports/create-internal.c
-+++ b/libports/create-internal.c
-@@ -54,8 +54,7 @@ _ports_create_port_internal (struct port_class *class,
-     }
- 
-   pi->class = class;
--  pi->refcnt = 1;
--  pi->weakrefcnt = 0;
-+  refcounts_init (&pi->refcounts, 1, 0);
-   pi->cancel_threshold = 0;
-   pi->mscount = 0;
-   pi->flags = 0;
-diff --git a/libports/get-right.c b/libports/get-right.c
-index 89050c6..8681f46 100644
---- a/libports/get-right.c
-+++ b/libports/get-right.c
-@@ -41,7 +41,7 @@ ports_get_right (void *port)
-   if ((pi->flags & PORT_HAS_SENDRIGHTS) == 0)
-     {
-       pi->flags |= PORT_HAS_SENDRIGHTS;
--      pi->refcnt++;
-+      refcounts_ref (&pi->refcounts, NULL);
-       err = mach_port_request_notification (mach_task_self (),
- 					    pi->port_right,
- 					    MACH_NOTIFY_NO_SENDERS,
-diff --git a/libports/import-port.c b/libports/import-port.c
-index 2660672..c337c85 100644
---- a/libports/import-port.c
-+++ b/libports/import-port.c
-@@ -48,8 +48,7 @@ ports_import_port (struct port_class *class, struct port_bucket *bucket,
-     return ENOMEM;
-   
-   pi->class = class;
--  pi->refcnt = 1 + !!stat.mps_srights;
--  pi->weakrefcnt = 0;
-+  refcounts_init (&pi->refcounts, 1 + !!stat.mps_srights, 0);
-   pi->cancel_threshold = 0;
-   pi->mscount = stat.mps_mscount;
-   pi->flags = stat.mps_srights ? PORT_HAS_SENDRIGHTS : 0;
-diff --git a/libports/lookup-port.c b/libports/lookup-port.c
-index 858ee11..cff0546 100644
---- a/libports/lookup-port.c
-+++ b/libports/lookup-port.c
-@@ -28,7 +28,6 @@ ports_lookup_port (struct port_bucket *bucket,
- {
-   struct port_info *pi;
- 
--  pthread_mutex_lock (&_ports_lock);
-   pthread_rwlock_rdlock (&_ports_htable_lock);
- 
-   pi = hurd_ihash_find (&_ports_htable, port);
-@@ -38,10 +37,9 @@ ports_lookup_port (struct port_bucket *bucket,
-     pi = 0;
- 
-   if (pi)
--    pi->refcnt++;
-+    ports_port_ref (pi);
- 
-   pthread_rwlock_unlock (&_ports_htable_lock);
--  pthread_mutex_unlock (&_ports_lock);
- 
-   return pi;
- }
-diff --git a/libports/port-deref-weak.c b/libports/port-deref-weak.c
-index beb4842..8432660 100644
---- a/libports/port-deref-weak.c
-+++ b/libports/port-deref-weak.c
-@@ -25,12 +25,8 @@ void
- ports_port_deref_weak (void *portstruct)
- {
-   struct port_info *pi = portstruct;
--  
--  pthread_mutex_lock (&_ports_lock);
--  assert (pi->weakrefcnt);
--  pi->weakrefcnt--;
--  if (pi->refcnt == 0 && pi->weakrefcnt == 0)
-+  struct references result;
-+  refcounts_deref_weak (&pi->refcounts, &result);
-+  if (result.hard == 0 && result.weak == 0)
-     _ports_complete_deallocate (pi);
--  else
--    pthread_mutex_unlock (&_ports_lock);
- }
-diff --git a/libports/port-deref.c b/libports/port-deref.c
-index cf9b238..b97dd13 100644
---- a/libports/port-deref.c
-+++ b/libports/port-deref.c
-@@ -25,26 +25,24 @@ void
- ports_port_deref (void *portstruct)
- {
-   struct port_info *pi = portstruct;
--  int trieddroppingweakrefs = 0;
--
-- retry:
--  
--  pthread_mutex_lock (&_ports_lock);
--  
--  if (pi->refcnt == 1 && pi->weakrefcnt
--      && pi->class->dropweak_routine && !trieddroppingweakrefs)
-+  struct references result;
-+
-+  if (pi->class->dropweak_routine)
-     {
--      pthread_mutex_unlock (&_ports_lock);
--      (*pi->class->dropweak_routine) (pi);
--      trieddroppingweakrefs = 1;
--      goto retry;
-+      /* If we need to call the dropweak routine, we need to hold one
-+         reference while doing so.  We use a weak reference for this
-+         purpose, which we acquire by demoting our hard reference to a
-+         weak one.  */
-+      refcounts_demote (&pi->refcounts, &result);
-+
-+      if (result.hard == 0 && result.weak > 1)
-+        (*pi->class->dropweak_routine) (pi);
-+
-+      refcounts_deref_weak (&pi->refcounts, &result);
-     }
--  
--  assert (pi->refcnt);
-+  else
-+    refcounts_deref (&pi->refcounts, &result);
- 
--  pi->refcnt--;
--  if (pi->refcnt == 0 && pi->weakrefcnt == 0)
-+  if (result.hard == 0 && result.weak == 0)
-     _ports_complete_deallocate (pi);
--  else
--    pthread_mutex_unlock (&_ports_lock);
- }
-diff --git a/libports/port-ref-weak.c b/libports/port-ref-weak.c
-index c7d3c69..e4b7fc8 100644
---- a/libports/port-ref-weak.c
-+++ b/libports/port-ref-weak.c
-@@ -25,9 +25,7 @@ void
- ports_port_ref_weak (void *portstruct)
- {
-   struct port_info *pi = portstruct;
--  
--  pthread_mutex_lock (&_ports_lock);
--  assert (pi->refcnt || pi->weakrefcnt);
--  pi->weakrefcnt++;
--  pthread_mutex_unlock (&_ports_lock);
-+  struct references result;
-+  refcounts_ref_weak (&pi->refcounts, &result);
-+  assert (result.hard > 0 || result.weak > 1);
- }
-diff --git a/libports/port-ref.c b/libports/port-ref.c
-index 92b7118..761c50f 100644
---- a/libports/port-ref.c
-+++ b/libports/port-ref.c
-@@ -25,9 +25,7 @@ void
- ports_port_ref (void *portstruct)
- {
-   struct port_info *pi = portstruct;
--  
--  pthread_mutex_lock (&_ports_lock);
--  assert (pi->refcnt || pi->weakrefcnt);
--  pi->refcnt++;
--  pthread_mutex_unlock (&_ports_lock);
-+  struct references result;
-+  refcounts_ref (&pi->refcounts, &result);
-+  assert (result.hard > 1 || result.weak > 0);
- }
-diff --git a/libports/ports.h b/libports/ports.h
-index 6922162..40d3b43 100644
---- a/libports/ports.h
-+++ b/libports/ports.h
-@@ -27,6 +27,7 @@
- #include <hurd/ihash.h>
- #include <mach/notify.h>
- #include <pthread.h>
-+#include <refcount.h>
- 
- /* These are global values for common flags used in the various structures.
-    Not all of these are meaningful in all flag fields.  */
-@@ -39,8 +40,7 @@
- struct port_info
- {
-   struct port_class *class;
--  int refcnt;
--  int weakrefcnt;
-+  refcounts_t refcounts;
-   mach_port_mscount_t mscount;
-   mach_msg_seqno_t cancel_threshold;
-   int flags;
-diff --git a/libports/reallocate-from-external.c b/libports/reallocate-from-external.c
-index 9944b39..7205bd9 100644
---- a/libports/reallocate-from-external.c
-+++ b/libports/reallocate-from-external.c
-@@ -56,7 +56,7 @@ ports_reallocate_from_external (void *portstruct, mach_port_t receive)
-   else if (((pi->flags & PORT_HAS_SENDRIGHTS) == 0) && stat.mps_srights)
-     {
-       pi->flags |= PORT_HAS_SENDRIGHTS;
--      pi->refcnt++;
-+      refcounts_ref (&pi->refcounts, NULL);
-     }
-   
-   pi->port_right = receive;
-diff --git a/libports/transfer-right.c b/libports/transfer-right.c
-index 3f48290..776a8d2 100644
---- a/libports/transfer-right.c
-+++ b/libports/transfer-right.c
-@@ -72,7 +72,7 @@ ports_transfer_right (void *tostruct,
-       else if (((topi->flags & PORT_HAS_SENDRIGHTS) == 0) && hassendrights)
- 	{
- 	  topi->flags |= PORT_HAS_SENDRIGHTS;
--	  topi->refcnt++;
-+	  refcounts_ref (&topi->refcounts, NULL);
- 	}
-     }
-   
-diff --git a/utils/rpctrace.c b/utils/rpctrace.c
-index fc913e3..b11fea4 100644
---- a/utils/rpctrace.c
-+++ b/utils/rpctrace.c
-@@ -431,7 +431,9 @@ destroy_receiver_info (struct receiver_info *info)
-   while (send_wrapper)
-     {
-       struct sender_info *next = send_wrapper->next;
--      assert (TRACED_INFO (send_wrapper)->pi.refcnt == 1);
-+      assert (
-+	refcounts_hard_references (&TRACED_INFO (send_wrapper)->pi.refcounts)
-+	== 1);
-       /* Reset the receive_right of the send wrapper in advance to avoid
-        * destroy_receiver_info is called when the port info is destroyed. */
-       send_wrapper->receive_right = NULL;
-@@ -848,7 +850,11 @@ rewrite_right (mach_port_t *right, mach_msg_type_name_t *type,
- 	    hurd_ihash_locp_remove (&traced_names, receiver_info->locp);
- 
- 	    send_wrapper2 = get_send_wrapper (receiver_info, dest, &rr);
--	    assert (TRACED_INFO (send_wrapper2)->pi.refcnt == 1);
-+	    assert (
-+	      refcounts_hard_references (
-+		&TRACED_INFO (send_wrapper2)->pi.refcounts)
-+	      == 1);
-+
- 	    name = TRACED_INFO (send_wrapper2)->name;
- 	    TRACED_INFO (send_wrapper2)->name = NULL;
- 	    /* send_wrapper2 isn't destroyed normally, so we need to unlink
--- 
-2.0.0.rc2
-
diff --git a/debian/patches/0004-ext2fs-use-a-seperate-lock-to-protect-nodehash.patch b/debian/patches/0004-ext2fs-use-a-seperate-lock-to-protect-nodehash.patch
deleted file mode 100644
index b92ac2f8..00000000
--- a/debian/patches/0004-ext2fs-use-a-seperate-lock-to-protect-nodehash.patch
+++ /dev/null
@@ -1,210 +0,0 @@
-From c622462a48e26c35c1faafb03bfd2755b818106a Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 13 May 2014 13:09:15 +0200
-Subject: [PATCH 4/8] ext2fs: use a seperate lock to protect nodehash
-
-Previously, ext2fs used diskfs_node_refcnt_lock to serialize access to
-the nodehash.
-
-Use a separate lock to protect nodehash.  Adjust the reference
-counting accordingly.  Every node in the nodehash carries a light
-reference.  When we are asked to give up that light reference, we
-reacquire our lock momentarily to check whether someone else
-reacquired a reference through the nodehash.
-
-* ext2fs/inode.c (nodecache_lock): New lock.
-(diskfs_cached_lookup): Use a separate lock to protect nodehash.
-Adjust the reference counting accordingly.
-(ifind): Likewise.
-(diskfs_node_iterate): Likewise.
-(diskfs_node_norefs): Move the code removing the node from nodehash...
-(diskfs_try_dropping_softrefs): ... here, where we check whether
-someone reacquired a reference, and if so hold on to our light
-reference.
----
- ext2fs/inode.c | 76 ++++++++++++++++++++++++++++++++++++++++------------------
- 1 file changed, 53 insertions(+), 23 deletions(-)
-
-diff --git a/ext2fs/inode.c b/ext2fs/inode.c
-index ed78265..0b3fa8b 100644
---- a/ext2fs/inode.c
-+++ b/ext2fs/inode.c
-@@ -46,8 +46,18 @@
- #define	INOHASH(ino)	(((unsigned)(ino))%INOHSZ)
- #endif
- 
-+/* The nodehash is a cache of nodes.
-+
-+   Access to nodehash and nodehash_nr_items is protected by
-+   nodecache_lock.
-+
-+   Every node in the nodehash carries a light reference.  When we are
-+   asked to give up that light reference, we reacquire our lock
-+   momentarily to check whether someone else reacquired a reference
-+   through the nodehash.  */
- static struct node *nodehash[INOHSZ];
- static size_t nodehash_nr_items;
-+static pthread_rwlock_t nodecache_lock = PTHREAD_RWLOCK_INITIALIZER;
- 
- static error_t read_node (struct node *np);
- 
-@@ -71,24 +81,22 @@ diskfs_cached_lookup (ino_t inum, struct node **npp)
-   struct node *np;
-   struct disknode *dn;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
-   for (np = nodehash[INOHASH(inum)]; np; np = np->dn->hnext)
-     if (np->cache_id == inum)
-       {
--	np->references++;
--	pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+	diskfs_nref (np);
-+	pthread_rwlock_unlock (&nodecache_lock);
- 	pthread_mutex_lock (&np->lock);
- 	*npp = np;
- 	return 0;
-       }
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
-   /* Format specific data for the new node.  */
-   dn = malloc (sizeof (struct disknode));
-   if (! dn)
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
--      return ENOMEM;
--    }
-+    return ENOMEM;
-   dn->dirents = 0;
-   dn->dir_idx = 0;
-   dn->pager = 0;
-@@ -102,14 +110,15 @@ diskfs_cached_lookup (ino_t inum, struct node **npp)
-   pthread_mutex_lock (&np->lock);
- 
-   /* Put NP in NODEHASH.  */
-+  pthread_rwlock_wrlock (&nodecache_lock);
-   dn->hnext = nodehash[INOHASH(inum)];
-   if (dn->hnext)
-     dn->hnext->dn->hprevp = &dn->hnext;
-   dn->hprevp = &nodehash[INOHASH(inum)];
-   nodehash[INOHASH(inum)] = np;
-+  diskfs_nref_light (np);
-   nodehash_nr_items += 1;
--
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
-   /* Get the contents of NP off disk.  */
-   err = read_node (np);
-@@ -140,14 +149,13 @@ ifind (ino_t inum)
- {
-   struct node *np;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
-   for (np = nodehash[INOHASH(inum)]; np; np = np->dn->hnext)
-     {
-       if (np->cache_id != inum)
- 	continue;
- 
--      assert (np->references);
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_rwlock_unlock (&nodecache_lock);
-       return np;
-     }
-   assert (0);
-@@ -158,11 +166,6 @@ ifind (ino_t inum)
- void
- diskfs_node_norefs (struct node *np)
- {
--  *np->dn->hprevp = np->dn->hnext;
--  if (np->dn->hnext)
--    np->dn->hnext->dn->hprevp = np->dn->hprevp;
--  nodehash_nr_items -= 1;
--
-   if (np->dn->dirents)
-     free (np->dn->dirents);
-   assert (!np->dn->pager);
-@@ -180,6 +183,33 @@ diskfs_node_norefs (struct node *np)
- void
- diskfs_try_dropping_softrefs (struct node *np)
- {
-+  pthread_rwlock_wrlock (&nodecache_lock);
-+  if (np->dn->hnext != NULL)
-+    {
-+      /* Check if someone reacquired a reference through the
-+         nodehash.  */
-+      unsigned int references;
-+      pthread_spin_lock (&diskfs_node_refcnt_lock);
-+      references = np->references;
-+      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+
-+      if (references > 0)
-+        {
-+          /* A reference was reacquired through a hash table lookup.
-+             It's fine, we didn't touch anything yet. */
-+          pthread_rwlock_unlock (&nodecache_lock);
-+          return;
-+        }
-+
-+      *np->dn->hprevp = np->dn->hnext;
-+      if (np->dn->hnext)
-+        np->dn->hnext->dn->hprevp = np->dn->hprevp;
-+      np->dn->hnext = NULL;
-+      nodehash_nr_items -= 1;
-+      diskfs_nrele_light (np);
-+    }
-+  pthread_rwlock_unlock (&nodecache_lock);
-+
-   drop_pager_softrefs (np);
- }
- 
-@@ -556,12 +586,12 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
-   size_t num_nodes;
-   struct node *node, **node_list, **p;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
- 
-   /* We must copy everything from the hash table into another data structure
-      to avoid running into any problems with the hash-table being modified
-      during processing (normally we delegate access to hash-table with
--     diskfs_node_refcnt_lock, but we can't hold this while locking the
-+     nodecache_lock, but we can't hold this while locking the
-      individual node locks).  */
-   num_nodes = nodehash_nr_items;
- 
-@@ -570,7 +600,7 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
-   node_list = malloc (num_nodes * sizeof (struct node *));
-   if (node_list == NULL)
-     {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_rwlock_unlock (&nodecache_lock);
-       ext2_debug ("unable to allocate temporary node table");
-       return ENOMEM;
-     }
-@@ -580,10 +610,10 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
-     for (node = nodehash[n]; node; node = node->dn->hnext)
-       {
- 	*p++ = node;
--	node->references++;
-+	diskfs_nref_light (node);
-       }
- 
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
-   p = node_list;
-   while (num_nodes-- > 0)
-@@ -595,7 +625,7 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
- 	  err = (*fun)(node);
- 	  pthread_mutex_unlock (&node->lock);
- 	}
--      diskfs_nrele (node);
-+      diskfs_nrele_light (node);
-     }
- 
-   free (node_list);
--- 
-2.0.0.rc2
-
diff --git a/debian/patches/0005-fatfs-use-a-seperate-lock-to-protect-nodehash.patch b/debian/patches/0005-fatfs-use-a-seperate-lock-to-protect-nodehash.patch
deleted file mode 100644
index fe868f84..00000000
--- a/debian/patches/0005-fatfs-use-a-seperate-lock-to-protect-nodehash.patch
+++ /dev/null
@@ -1,253 +0,0 @@
-From b3ddda348965fa6f8ad6cdf839d8f6a225e1070f Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 13 May 2014 15:14:53 +0200
-Subject: [PATCH 5/8] fatfs: use a seperate lock to protect nodehash
-
-Previously, fatfs used diskfs_node_refcnt_lock to serialize access to
-the nodehash.
-
-Use a separate lock to protect nodehash.  Adjust the reference
-counting accordingly.  Every node in the nodehash carries a light
-reference.  When we are asked to give up that light reference, we
-reacquire our lock momentarily to check whether someone else
-reacquired a reference through the nodehash.
-
-* fatfs/inode.c (nodecache_lock): New lock.
-(diskfs_cached_lookup): Use a separate lock to protect nodehash.
-Adjust the reference counting accordingly.
-(ifind): Likewise.
-(diskfs_node_iterate): Likewise.
-(diskfs_node_norefs): Move the code removing the node from nodehash...
-(diskfs_try_dropping_softrefs): ... here, where we check whether
-someone reacquired a reference, and if so hold on to our light
-reference.
----
- fatfs/inode.c | 93 +++++++++++++++++++++++++++++++++++++++--------------------
- 1 file changed, 62 insertions(+), 31 deletions(-)
-
-diff --git a/fatfs/inode.c b/fatfs/inode.c
-index ed6f3f0..1e5abdf 100644
---- a/fatfs/inode.c
-+++ b/fatfs/inode.c
-@@ -44,8 +44,18 @@
- #define INOHASH(ino)    (((unsigned)(ino))%INOHSZ)
- #endif
- 
-+/* The nodehash is a cache of nodes.
-+
-+   Access to nodehash and nodehash_nr_items is protected by
-+   nodecache_lock.
-+
-+   Every node in the nodehash carries a light reference.  When we are
-+   asked to give up that light reference, we reacquire our lock
-+   momentarily to check whether someone else reacquired a reference
-+   through the nodehash.  */
- static struct node *nodehash[INOHSZ];
- static size_t nodehash_nr_items;
-+static pthread_rwlock_t nodecache_lock = PTHREAD_RWLOCK_INITIALIZER;
- 
- static error_t read_node (struct node *np, vm_address_t buf);
- 
-@@ -67,24 +77,23 @@ diskfs_cached_lookup (ino64_t inum, struct node **npp)
-   struct node *np;
-   struct disknode *dn;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
-   for (np = nodehash[INOHASH(inum)]; np; np = np->dn->hnext)
-     if (np->cache_id == inum)
-       {
--        np->references++;
--        pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+        diskfs_nref (np);
-+        pthread_rwlock_unlock (&nodecache_lock);
-         pthread_mutex_lock (&np->lock);
-         *npp = np;
-         return 0;
-       }
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
-   /* Format specific data for the new node.  */
-   dn = malloc (sizeof (struct disknode));
-   if (! dn)
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
--      return ENOMEM;
--    }
-+    return ENOMEM;
-+
-   dn->pager = 0;
-   dn->first = 0;
-   dn->last = 0;
-@@ -102,15 +111,16 @@ diskfs_cached_lookup (ino64_t inum, struct node **npp)
-   pthread_mutex_lock (&np->lock);
-   
-   /* Put NP in NODEHASH.  */
-+  pthread_rwlock_wrlock (&nodecache_lock);
-   dn->hnext = nodehash[INOHASH(inum)];
-   if (dn->hnext)
-     dn->hnext->dn->hprevp = &dn->hnext;
-   dn->hprevp = &nodehash[INOHASH(inum)];
-   nodehash[INOHASH(inum)] = np;
-+  diskfs_nref_light (np);
-   nodehash_nr_items += 1;
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
--  
-   /* Get the contents of NP off disk.  */
-   err = read_node (np, 0);
- 
-@@ -133,24 +143,23 @@ diskfs_cached_lookup_in_dirbuf (int inum, struct node **npp, vm_address_t buf)
-   struct node *np;
-   struct disknode *dn;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
-   for (np = nodehash[INOHASH(inum)]; np; np = np->dn->hnext)
-     if (np->cache_id == inum)
-       {
--        np->references++;
--        pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+        diskfs_nref (np);
-+        pthread_rwlock_unlock (&nodecache_lock);
-         pthread_mutex_lock (&np->lock);
-         *npp = np;
-         return 0;
-       }
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
-   /* Format specific data for the new node.  */
-   dn = malloc (sizeof (struct disknode));
-   if (! dn)
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
--      return ENOMEM;
--    }
-+    return ENOMEM;
-+
-   dn->pager = 0;
-   dn->first = 0;
-   dn->last = 0;
-@@ -168,15 +177,16 @@ diskfs_cached_lookup_in_dirbuf (int inum, struct node **npp, vm_address_t buf)
-   pthread_mutex_lock (&np->lock);
-   
-   /* Put NP in NODEHASH.  */
-+  pthread_rwlock_wrlock (&nodecache_lock);
-   dn->hnext = nodehash[INOHASH(inum)];
-   if (dn->hnext)
-     dn->hnext->dn->hprevp = &dn->hnext;
-   dn->hprevp = &nodehash[INOHASH(inum)];
-   nodehash[INOHASH(inum)] = np;
-+  diskfs_nref_light (np);
-   nodehash_nr_items += 1;
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
--  
-   /* Get the contents of NP off disk.  */
-   err = read_node (np, buf);
- 
-@@ -196,14 +206,13 @@ ifind (ino_t inum)
- {
-   struct node *np;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
-   for (np = nodehash[INOHASH(inum)]; np; np = np->dn->hnext)
-     {
-       if (np->cache_id != inum)
-         continue;
- 
--      assert (np->references);
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_rwlock_unlock (&nodecache_lock);
-       return np;
-     }
-   assert (0);
-@@ -216,11 +225,6 @@ diskfs_node_norefs (struct node *np)
- {
-   struct cluster_chain *last = np->dn->first;
- 
--  *np->dn->hprevp = np->dn->hnext;
--  if (np->dn->hnext)
--    np->dn->hnext->dn->hprevp = np->dn->hprevp;
--  nodehash_nr_items -= 1;
--
-   while (last)
-     {
-       struct cluster_chain *next = last->next;
-@@ -251,6 +255,33 @@ diskfs_node_norefs (struct node *np)
- void
- diskfs_try_dropping_softrefs (struct node *np)
- {
-+  pthread_rwlock_wrlock (&nodecache_lock);
-+  if (np->dn->hnext != NULL)
-+    {
-+      /* Check if someone reacquired a reference through the
-+         nodehash.  */
-+      unsigned int references;
-+      pthread_spin_lock (&diskfs_node_refcnt_lock);
-+      references = np->references;
-+      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+
-+      if (references > 0)
-+        {
-+          /* A reference was reacquired through a hash table lookup.
-+             It's fine, we didn't touch anything yet. */
-+          pthread_rwlock_unlock (&nodecache_lock);
-+          return;
-+        }
-+
-+      *np->dn->hprevp = np->dn->hnext;
-+      if (np->dn->hnext)
-+        np->dn->hnext->dn->hprevp = np->dn->hprevp;
-+      np->dn->hnext = NULL;
-+      nodehash_nr_items -= 1;
-+      diskfs_nrele_light (np);
-+    }
-+  pthread_rwlock_unlock (&nodecache_lock);
-+
-   drop_pager_softrefs (np);
- }
- 
-@@ -554,12 +585,12 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
-   size_t num_nodes;
-   struct node *node, **node_list, **p;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
- 
-   /* We must copy everything from the hash table into another data structure
-      to avoid running into any problems with the hash-table being modified
-      during processing (normally we delegate access to hash-table with
--     diskfs_node_refcnt_lock, but we can't hold this while locking the
-+     nodecache_lock, but we can't hold this while locking the
-      individual node locks).  */
- 
-   num_nodes = nodehash_nr_items;
-@@ -570,10 +601,10 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
-     for (node = nodehash[n]; node; node = node->dn->hnext)
-       {
-         *p++ = node;
--        node->references++;
-+        diskfs_nref_light (node);
-       }
- 
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
-   p = node_list;
-   while (num_nodes-- > 0)
-@@ -585,7 +616,7 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
-           err = (*fun)(node);
-           pthread_mutex_unlock (&node->lock);
-         }
--      diskfs_nrele (node);
-+      diskfs_nrele_light (node);
-     }
- 
-   return err;
--- 
-2.0.0.rc2
-
diff --git a/debian/patches/0006-isofs-use-a-seperate-lock-to-protect-node_cache.patch b/debian/patches/0006-isofs-use-a-seperate-lock-to-protect-node_cache.patch
deleted file mode 100644
index 97774dd1..00000000
--- a/debian/patches/0006-isofs-use-a-seperate-lock-to-protect-node_cache.patch
+++ /dev/null
@@ -1,229 +0,0 @@
-From 716241f173049ef185466472d625c771e911b489 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 13 May 2014 15:16:31 +0200
-Subject: [PATCH 6/8] isofs: use a seperate lock to protect node_cache
-
-Previously, isofs used diskfs_node_refcnt_lock to serialize access to
-the node_cache.
-
-Use a separate lock to protect node_cache.  Adjust the reference
-counting accordingly.  Every node in the node_cache carries a light
-reference.  When we are asked to give up that light reference, we
-reacquire our lock momentarily to check whether someone else
-reacquired a reference through the node_cache.
-
-* isofs/inode.c (nodecache_lock): New lock.
-(inode_cache_find): Use a separate lock to protect node_cache.
-Adjust the reference counting accordingly.
-(diskfs_cached_lookup): Likewise.
-(load_inode): Likewise.
-(cache_inode): Update comment accordingly.
-(diskfs_node_iterate): Likewise.
-(diskfs_node_norefs): Move the code removing the node from node_cache...
-(diskfs_try_dropping_softrefs): ... here, where we check whether
-someone reacquired a reference, and if so hold on to our light
-reference.
----
- isofs/inode.c | 81 +++++++++++++++++++++++++++++++++++++++++------------------
- 1 file changed, 56 insertions(+), 25 deletions(-)
-
-diff --git a/isofs/inode.c b/isofs/inode.c
-index cdc05ae..ec874df 100644
---- a/isofs/inode.c
-+++ b/isofs/inode.c
-@@ -48,9 +48,19 @@ struct node_cache
-   struct node *np;		/* if live */
- };
- 
-+/* The node_cache is a cache of nodes.
-+
-+   Access to node_cache, node_cache_size, and node_cache_alloced is
-+   protected by nodecache_lock.
-+
-+   Every node in the node_cache carries a light reference.  When we
-+   are asked to give up that light reference, we reacquire our lock
-+   momentarily to check whether someone else reacquired a reference
-+   through the node_cache.  */
- static int node_cache_size = 0;
- static int node_cache_alloced = 0;
- struct node_cache *node_cache = 0;
-+static pthread_rwlock_t nodecache_lock = PTHREAD_RWLOCK_INITIALIZER;
- 
- /* Forward */
- static error_t read_disknode (struct node *,
-@@ -58,7 +68,7 @@ static error_t read_disknode (struct node *,
- 
- 
- /* See if node with identifier ID is in the cache.  If so, return it,
--   with one additional reference. diskfs_node_refcnt_lock must be held
-+   with one additional reference. nodecache_lock must be held
-    on entry to the call, and will be released iff the node was found
-    in the cache. */
- void
-@@ -71,8 +81,8 @@ inode_cache_find (off_t id, struct node **npp)
- 	&& node_cache[i].np)
-       {
- 	*npp = node_cache[i].np;
--	(*npp)->references++;
--	pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+	diskfs_nref (*npp);
-+	pthread_rwlock_unlock (&nodecache_lock);
- 	pthread_mutex_lock (&(*npp)->lock);
- 	return;
-       }
-@@ -92,7 +102,7 @@ use_file_start_id (struct dirrect *record, struct rrip_lookup *rr)
- }
- 
- /* Enter NP into the cache.  The directory entry we used is DR, the
--   cached Rock-Ridge info RR. diskfs_node_refcnt_lock must be held. */
-+   cached Rock-Ridge info RR. nodecache_lock must be held. */
- void
- cache_inode (struct node *np, struct dirrect *record,
- 	    struct rrip_lookup *rr)
-@@ -155,7 +165,7 @@ diskfs_cached_lookup (ino_t id, struct node **npp)
-      to avoid presenting zero cache ID's. */
-   id--;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
-   assert (id < node_cache_size);
- 
-   np = node_cache[id].np;
-@@ -174,7 +184,7 @@ diskfs_cached_lookup (ino_t id, struct node **npp)
-       dn = malloc (sizeof (struct disknode));
-       if (!dn)
- 	{
--	  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+	  pthread_rwlock_unlock (&nodecache_lock);
- 	  release_rrip (&rr);
- 	  return ENOMEM;
- 	}
-@@ -185,16 +195,17 @@ diskfs_cached_lookup (ino_t id, struct node **npp)
-       if (!np)
- 	{
- 	  free (dn);
--	  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+	  pthread_rwlock_unlock (&nodecache_lock);
- 	  release_rrip (&rr);
- 	  return ENOMEM;
- 	}
-       np->cache_id = id + 1;	/* see above for rationale for increment */
-       pthread_mutex_lock (&np->lock);
-       c->np = np;
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      diskfs_nref_light (np);
-+      pthread_rwlock_unlock (&nodecache_lock);
- 
--      err = read_disknode (np, node_cache[id].dr, &rr);
-+      err = read_disknode (np, dn->dr, &rr);
-       if (!err)
- 	*npp = np;
- 
-@@ -204,8 +215,8 @@ diskfs_cached_lookup (ino_t id, struct node **npp)
-     }
- 
- 
--  np->references++;
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  diskfs_nref (np);
-+  pthread_rwlock_unlock (&nodecache_lock);
-   pthread_mutex_lock (&np->lock);
-   *npp = np;
-   return 0;
-@@ -315,7 +326,7 @@ load_inode (struct node **npp, struct dirrect *record,
-   if (rr->valid & VALID_CL)
-     record = rr->realdirent;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&nodecache_lock);
- 
-   /* First check the cache */
-   if (use_file_start_id (record, rr))
-@@ -323,19 +334,16 @@ load_inode (struct node **npp, struct dirrect *record,
-   else
-     inode_cache_find ((off_t) ((void *) record - (void *) disk_image), npp);
- 
-+  pthread_rwlock_unlock (&nodecache_lock);
-+
-   if (*npp)
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
--      return 0;
--    }
-+    return 0;
- 
-   /* Create a new node */
-   dn = malloc (sizeof (struct disknode));
-   if (!dn)
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
--      return ENOMEM;
--    }
-+    return ENOMEM;
-+
-   dn->fileinfo = 0;
-   dn->dr = record;
-   dn->file_start = file_start;
-@@ -344,14 +352,14 @@ load_inode (struct node **npp, struct dirrect *record,
-   if (!np)
-     {
-       free (dn);
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-       return ENOMEM;
-     }
- 
-   pthread_mutex_lock (&np->lock);
- 
-+  pthread_rwlock_wrlock (&nodecache_lock);
-   cache_inode (np, record, rr);
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_unlock (&nodecache_lock);
- 
-   err = read_disknode (np, record, rr);
-   *npp = np;
-@@ -505,9 +513,6 @@ error_t (*diskfs_read_symlink_hook) (struct node *, char *)
- void
- diskfs_node_norefs (struct node *np)
- {
--  assert (node_cache[np->cache_id - 1].np == np);
--  node_cache[np->cache_id - 1].np = 0;
--
-   if (np->dn->translator)
-     free (np->dn->translator);
- 
-@@ -521,6 +526,32 @@ diskfs_node_norefs (struct node *np)
- void
- diskfs_try_dropping_softrefs (struct node *np)
- {
-+  pthread_rwlock_wrlock (&nodecache_lock);
-+  if (np->cache_id != 0)
-+    {
-+      assert (node_cache[np->cache_id - 1].np == np);
-+
-+      /* Check if someone reacquired a reference through the
-+         node_cache.  */
-+      unsigned int references;
-+      pthread_spin_lock (&diskfs_node_refcnt_lock);
-+      references = np->references;
-+      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+
-+      if (references > 0)
-+        {
-+          /* A reference was reacquired through a hash table lookup.
-+             It's fine, we didn't touch anything yet. */
-+          pthread_rwlock_unlock (&nodecache_lock);
-+          return;
-+        }
-+
-+      node_cache[np->cache_id - 1].np = 0;
-+      np->cache_id = 0;
-+      diskfs_nrele_light (np);
-+    }
-+  pthread_rwlock_unlock (&nodecache_lock);
-+
-   drop_pager_softrefs (np);
- }
- 
--- 
-2.0.0.rc2
-
diff --git a/debian/patches/0007-tmpfs-use-a-seperate-lock-to-protect-all_nodes.patch b/debian/patches/0007-tmpfs-use-a-seperate-lock-to-protect-all_nodes.patch
deleted file mode 100644
index ac54f105..00000000
--- a/debian/patches/0007-tmpfs-use-a-seperate-lock-to-protect-all_nodes.patch
+++ /dev/null
@@ -1,293 +0,0 @@
-From 10a755611772880b869237feb0bac4b360817a79 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 13 May 2014 15:35:42 +0200
-Subject: [PATCH 7/8] tmpfs: use a seperate lock to protect all_nodes
-
-Previously, tmpfs used diskfs_node_refcnt_lock to serialize access to
-the all_nodes and some other related global state related to memory
-consumption.
-
-Use a separate lock to protect all_nodes, and atomic operations to
-access the state related to memory consumption. Adjust the reference
-counting accordingly.  Every node in the all_nodes carries a light
-reference.  When we are asked to give up that light reference, we
-reacquire our lock momentarily to check whether someone else
-reacquired a reference through the all_nodes.
-
-* tmpfs/tmpfs.h (num_files, tmpfs_space_used): Use atomic operations
-for these variables.
-(adjust_used): Use atomic operations.
-(get_used): New convenience function to atomically retrieve
-tmpfs_space_used.
-* tmpfs/node.c (all_nodes_lock): New lock.
-(diskfs_alloc_node): Use a separate lock to protect all_nodes.
-Adjust the reference counting accordingly.
-(diskfs_free_node): Likewise.
-(diskfs_cached_lookup):Likewise.
-(diskfs_node_iterate): Likewise.
-(diskfs_node_norefs): Move the code removing the node from all_nodes...
-(diskfs_try_dropping_softrefs): ... here, where we check whether
-someone reacquired a reference, and if so hold on to our light
-reference.
-(diskfs_grow): Use atomic operations.
-* tmpfs/tmpfs.c (diskfs_set_statfs): Likewise.
----
- tmpfs/node.c  | 83 ++++++++++++++++++++++++++++++++++++++++-------------------
- tmpfs/tmpfs.c |  6 ++---
- tmpfs/tmpfs.h | 20 +++++++++-----
- 3 files changed, 73 insertions(+), 36 deletions(-)
-
-diff --git a/tmpfs/node.c b/tmpfs/node.c
-index acc029a..e126437 100644
---- a/tmpfs/node.c
-+++ b/tmpfs/node.c
-@@ -29,8 +29,18 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
- unsigned int num_files;
- static unsigned int gen;
- 
-+/* all_nodes is a cache of nodes.
-+
-+   Access to all_nodes and all_nodes_nr_items is protected by
-+   all_nodes_lock.
-+
-+   Every node in the all_nodes carries a light reference.  When we are
-+   asked to give up that light reference, we reacquire our lock
-+   momentarily to check whether someone else reacquired a reference
-+   through the all_nodes.  */
- struct node *all_nodes;
- static size_t all_nodes_nr_items;
-+pthread_rwlock_t all_nodes_lock = PTHREAD_RWLOCK_INITIALIZER;
- 
- error_t
- diskfs_alloc_node (struct node *dp, mode_t mode, struct node **npp)
-@@ -40,18 +50,17 @@ diskfs_alloc_node (struct node *dp, mode_t mode, struct node **npp)
-   dn = calloc (1, sizeof *dn);
-   if (dn == 0)
-     return ENOSPC;
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  if (round_page (tmpfs_space_used + sizeof *dn) / vm_page_size
-+
-+  if (round_page (get_used () + sizeof *dn) / vm_page_size
-       > tmpfs_page_limit)
-     {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_rwlock_unlock (&all_nodes_lock);
-       free (dn);
-       return ENOSPC;
-     }
-   dn->gen = gen++;
--  ++num_files;
--  tmpfs_space_used += sizeof *dn;
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  __atomic_add_fetch (&num_files, 1, __ATOMIC_RELAXED);
-+  adjust_used (sizeof *dn);
- 
-   dn->type = IFTODT (mode & S_IFMT);
-   return diskfs_cached_lookup ((ino_t) (uintptr_t) dn, npp);
-@@ -75,15 +84,19 @@ diskfs_free_node (struct node *np, mode_t mode)
-       free (np->dn->u.lnk);
-       break;
-     }
-+
-+  pthread_rwlock_wrlock (&all_nodes_lock);
-   *np->dn->hprevp = np->dn->hnext;
-   if (np->dn->hnext != 0)
-     np->dn->hnext->dn->hprevp = np->dn->hprevp;
-   all_nodes_nr_items -= 1;
-+  pthread_rwlock_unlock (&all_nodes_lock);
-+
-+  __atomic_sub_fetch (&num_files, 1, __ATOMIC_RELAXED);
-+  adjust_used (-sizeof *np->dn);
-+
-   free (np->dn);
-   np->dn = 0;
--
--  --num_files;
--  tmpfs_space_used -= sizeof *np->dn;
- }
- 
- void
-@@ -117,14 +130,6 @@ diskfs_node_norefs (struct node *np)
- 	  np->dn->u.chr = np->dn_stat.st_rdev;
- 	  break;
- 	}
--
--      /* Remove this node from the cache list rooted at `all_nodes'.  */
--      *np->dn->hprevp = np->dn->hnext;
--      if (np->dn->hnext != 0)
--	np->dn->hnext->dn->hprevp = np->dn->hprevp;
--      all_nodes_nr_items -= 1;
--      np->dn->hnext = 0;
--      np->dn->hprevp = 0;
-     }
- 
-   free (np);
-@@ -167,30 +172,33 @@ diskfs_cached_lookup (ino_t inum, struct node **npp)
- 
-   assert (npp);
- 
-+  pthread_rwlock_rdlock (&all_nodes_lock);
-   if (dn->hprevp != 0)		/* There is already a node.  */
-     {
-       np = *dn->hprevp;
-       assert (np->dn == dn);
-       assert (*dn->hprevp == np);
--
-       diskfs_nref (np);
-+      pthread_rwlock_unlock (&all_nodes_lock);
-     }
-   else
-     /* Create the new node.  */
-     {
-       struct stat *st;
-+      pthread_rwlock_unlock (&all_nodes_lock);
- 
-       np = diskfs_make_node (dn);
-       np->cache_id = (ino_t) (uintptr_t) dn;
- 
--      pthread_spin_lock (&diskfs_node_refcnt_lock);
-+      pthread_rwlock_wrlock (&all_nodes_lock);
-       dn->hnext = all_nodes;
-       if (dn->hnext)
- 	dn->hnext->dn->hprevp = &dn->hnext;
-       dn->hprevp = &all_nodes;
-       all_nodes = np;
-       all_nodes_nr_items += 1;
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      diskfs_nref_light (np);
-+      pthread_rwlock_unlock (&all_nodes_lock);
- 
-       st = &np->dn_stat;
-       memset (st, 0, sizeof *st);
-@@ -229,12 +237,12 @@ diskfs_node_iterate (error_t (*fun) (struct node *))
-   size_t num_nodes;
-   struct node *node, **node_list, **p;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_rdlock (&all_nodes_lock);
- 
-   /* We must copy everything from the hash table into another data structure
-      to avoid running into any problems with the hash-table being modified
-      during processing (normally we delegate access to hash-table with
--     diskfs_node_refcnt_lock, but we can't hold this while locking the
-+     all_nodes_lock, but we can't hold this while locking the
-      individual node locks).  */
- 
-   num_nodes = all_nodes_nr_items;
-@@ -243,10 +251,10 @@ diskfs_node_iterate (error_t (*fun) (struct node *))
-   for (node = all_nodes; node != 0; node = node->dn->hnext)
-     {
-       *p++ = node;
--      node->references++;
-+      diskfs_nref_light (node);
-     }
- 
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_rwlock_unlock (&all_nodes_lock);
- 
-   p = node_list;
-   while (num_nodes-- > 0)
-@@ -258,7 +266,7 @@ diskfs_node_iterate (error_t (*fun) (struct node *))
- 	  err = (*fun) (node);
- 	  pthread_mutex_unlock (&node->lock);
- 	}
--      diskfs_nrele (node);
-+      diskfs_nrele_light (node);
-     }
- 
-   return err;
-@@ -272,6 +280,29 @@ diskfs_node_iterate (error_t (*fun) (struct node *))
- void
- diskfs_try_dropping_softrefs (struct node *np)
- {
-+  pthread_rwlock_wrlock (&all_nodes_lock);
-+  if (np->cache_id != 0)
-+    {
-+      /* Check if someone reacquired a reference.  */
-+      unsigned int references;
-+      pthread_spin_lock (&diskfs_node_refcnt_lock);
-+      references = np->references;
-+      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+
-+      if (references > 0)
-+        {
-+          /* A reference was reacquired.  It's fine, we didn't touch
-+             anything yet. */
-+          pthread_rwlock_unlock (&all_nodes_lock);
-+          return;
-+        }
-+
-+      /* Just let go of the weak reference.  The node will be removed
-+         from all_nodes in diskfs_free_node.  */
-+      np->cache_id = 0;
-+      diskfs_nrele_light (np);
-+    }
-+  pthread_rwlock_unlock (&all_nodes_lock);
- }
- 
- /* The user must define this funcction.  Node NP has some light
-@@ -447,7 +478,7 @@ diskfs_grow (struct node *np, off_t size, struct protid *cred)
- 
-   off_t set_size = size;
-   size = round_page (size);
--  if (round_page (tmpfs_space_used + size - np->allocsize)
-+  if (round_page (get_used () + size - np->allocsize)
-       / vm_page_size > tmpfs_page_limit)
-     return ENOSPC;
- 
-diff --git a/tmpfs/tmpfs.c b/tmpfs/tmpfs.c
-index 718c6d8..0aace25 100644
---- a/tmpfs/tmpfs.c
-+++ b/tmpfs/tmpfs.c
-@@ -67,10 +67,8 @@ diskfs_set_statfs (struct statfs *st)
-   st->f_bsize = vm_page_size;
-   st->f_blocks = tmpfs_page_limit;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  st->f_files = num_files;
--  pages = round_page (tmpfs_space_used) / vm_page_size;
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  st->f_files = __atomic_load_n (&num_files, __ATOMIC_RELAXED);
-+  pages = round_page (get_used ()) / vm_page_size;
- 
-   st->f_bfree = pages < tmpfs_page_limit ? tmpfs_page_limit - pages : 0;
-   st->f_bavail = st->f_bfree;
-diff --git a/tmpfs/tmpfs.h b/tmpfs/tmpfs.h
-index b3c636d..ad47200 100644
---- a/tmpfs/tmpfs.h
-+++ b/tmpfs/tmpfs.h
-@@ -69,17 +69,25 @@ struct tmpfs_dirent
-   char name[0];
- };
- 
--extern unsigned int num_files;
--extern off_t tmpfs_page_limit, tmpfs_space_used;
--
-+extern off_t tmpfs_page_limit;
- extern mach_port_t default_pager;
- 
-+/* These two must be accessed using atomic operations.  */
-+extern unsigned int num_files;
-+extern off_t tmpfs_space_used;
-+
-+/* Convenience function to adjust tmpfs_space_used.  */
- static inline void
- adjust_used (off_t change)
- {
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  tmpfs_space_used += change;
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  __atomic_add_fetch (&num_files, change, __ATOMIC_RELAXED);
-+}
-+
-+/* Convenience function to get tmpfs_space_used.  */
-+static inline off_t
-+get_used (void)
-+{
-+  return __atomic_load_n (&num_files, __ATOMIC_RELAXED);
- }
- 
- #endif
--- 
-2.0.0.rc2
-
diff --git a/debian/patches/0008-libdiskfs-lock-less-reference-counting-of-nodes.patch b/debian/patches/0008-libdiskfs-lock-less-reference-counting-of-nodes.patch
deleted file mode 100644
index edfbcc43..00000000
--- a/debian/patches/0008-libdiskfs-lock-less-reference-counting-of-nodes.patch
+++ /dev/null
@@ -1,548 +0,0 @@
-From d030e37416f76b19a8e5e42d757c06e1926c6f91 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Wed, 14 May 2014 11:19:35 +0200
-Subject: [PATCH 8/8] libdiskfs: lock-less reference counting of nodes
-
-* libdiskfs/diskfs.h (struct node): Use refcounts_t for reference counting.
-(diskfs_node_refcnt_lock): Remove.
-(diskfs_node_norefs,diskfs_drop_node): Change comments accordingly.
-* libdiskfs/init-init.c: Likewise.
-* libdiskfs/node-drop.c: Likewise.
-* libdiskfs/node-make.c: Likewise.
-* libdiskfs/node-nput.c: Likewise.
-* libdiskfs/node-nputl.c: Likewise.
-* libdiskfs/node-nref.c: Likewise.
-* libdiskfs/node-nrefl.c: Likewise.
-* libdiskfs/node-nrele.c: Likewise.
-* libdiskfs/node-nrelel.c: Likewise.
-* ext2fs/inode.c: Likewise.
-* fatfs/inode.c: Likewise.
-* isofs/inode.c: Likewise.
-* tmpfs/node.c: Likewise.
-* doc/hurd.texi: Likewise.
----
- doc/hurd.texi           | 11 ++--------
- ext2fs/inode.c          | 10 ++++-----
- fatfs/inode.c           | 22 ++++++++------------
- isofs/inode.c           | 10 ++++-----
- libdiskfs/diskfs.h      | 15 ++++++--------
- libdiskfs/init-init.c   |  2 --
- libdiskfs/node-drop.c   |  9 +++------
- libdiskfs/node-make.c   |  3 +--
- libdiskfs/node-nput.c   | 54 +++++++++++++++++++------------------------------
- libdiskfs/node-nputl.c  | 12 ++++-------
- libdiskfs/node-nref.c   | 10 ++++-----
- libdiskfs/node-nrefl.c  |  6 +++---
- libdiskfs/node-nrele.c  | 48 +++++++++++++++++++++----------------------
- libdiskfs/node-nrelel.c |  9 +++------
- tmpfs/node.c            | 10 ++++-----
- 15 files changed, 93 insertions(+), 138 deletions(-)
-
-diff --git a/doc/hurd.texi b/doc/hurd.texi
-index 07ddfb4..6cafdb9 100644
---- a/doc/hurd.texi
-+++ b/doc/hurd.texi
-@@ -3780,10 +3780,6 @@ new thread and (eventually) get rid of the old one; the old thread won't
- do any more syncs, regardless.
- @end deftypefun
- 
--@deftypevar spin_lock_t diskfs_node_refcnt_lock
--Pager reference count lock.
--@end deftypevar
--
- @deftypevar int diskfs_readonly
- Set to zero if the filesystem is currently writable.
- @end deftypevar
-@@ -3818,9 +3814,7 @@ Every file or directory is a diskfs @dfn{node}.  The following functions
- help your diskfs callbacks manage nodes and their references:
- 
- @deftypefun void diskfs_drop_node (@w{struct node *@var{np}})
--Node @var{np} now has no more references; clean all state.  The
--@var{diskfs_node_refcnt_lock} must be held, and will be released upon
--return.  @var{np} must be locked.
-+Node @var{np} now has no more references; clean all state.
- @end deftypefun
- 
- @deftypefun void diskfs_node_update (@w{struct node *@var{np}}, @w{int @var{wait}})
-@@ -4236,14 +4230,13 @@ without real users.
- @deftypefun void diskfs_try_dropping_softrefs (@w{struct node *@var{np}})
- Node @var{np} has some light references, but has just lost its last hard
- references.  Take steps so that if any light references can be freed,
--they are.  Both @var{diskfs_node_refcnt_lock} and @var{np} are locked.
-+they are.  @var{np} is locked.
- This function will be called after @code{diskfs_lost_hardrefs}.
- @end deftypefun
- 
- @deftypefun void diskfs_node_norefs (@w{struct node *@var{np}})
- Node @var{np} has no more references; free local state, including
- @code{*@var{np}} if it shouldn't be retained.
--@var{diskfs_node_refcnt_lock} is held.
- @end deftypefun
- 
- @deftypefun error_t diskfs_set_hypermetadata (@w{int @var{wait}}, @w{int @var{clean}})
-diff --git a/ext2fs/inode.c b/ext2fs/inode.c
-index 0b3fa8b..d2bfe20 100644
---- a/ext2fs/inode.c
-+++ b/ext2fs/inode.c
-@@ -188,12 +188,12 @@ diskfs_try_dropping_softrefs (struct node *np)
-     {
-       /* Check if someone reacquired a reference through the
-          nodehash.  */
--      unsigned int references;
--      pthread_spin_lock (&diskfs_node_refcnt_lock);
--      references = np->references;
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      struct references result;
-+      refcounts_references (&np->refcounts, &result);
- 
--      if (references > 0)
-+      /* An additional weak reference is acquired by libdiskfs across
-+         calls to diskfs_try_dropping_softrefs.  */
-+      if (result.hard > 0 || result.weak > 2)
-         {
-           /* A reference was reacquired through a hash table lookup.
-              It's fine, we didn't touch anything yet. */
-diff --git a/fatfs/inode.c b/fatfs/inode.c
-index 1e5abdf..cdbe073 100644
---- a/fatfs/inode.c
-+++ b/fatfs/inode.c
-@@ -235,14 +235,8 @@ diskfs_node_norefs (struct node *np)
-   if (np->dn->translator)
-     free (np->dn->translator);
- 
--  /* It is safe to unlock diskfs_node_refcnt_lock here for a while because
--     all references to the node have been deleted.  */
-   if (np->dn->dirnode)
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
--      diskfs_nrele (np->dn->dirnode);
--      pthread_spin_lock (&diskfs_node_refcnt_lock);
--    }
-+    diskfs_nrele (np->dn->dirnode);
- 
-   assert (!np->dn->pager);
- 
-@@ -260,12 +254,12 @@ diskfs_try_dropping_softrefs (struct node *np)
-     {
-       /* Check if someone reacquired a reference through the
-          nodehash.  */
--      unsigned int references;
--      pthread_spin_lock (&diskfs_node_refcnt_lock);
--      references = np->references;
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      struct references result;
-+      refcounts_references (&np->refcounts, &result);
- 
--      if (references > 0)
-+      /* An additional weak reference is acquired by libdiskfs across
-+         calls to diskfs_try_dropping_softrefs.  */
-+      if (result.hard > 0 || result.weak > 2)
-         {
-           /* A reference was reacquired through a hash table lookup.
-              It's fine, we didn't touch anything yet. */
-@@ -370,7 +364,7 @@ read_node (struct node *np, vm_address_t buf)
-   /* Files in fatfs depend on the directory that hold the file.  */
-   np->dn->dirnode = dp;
-   if (dp)
--    dp->references++;
-+    refcounts_ref (&dp->refcounts, NULL);
- 
-   pthread_rwlock_rdlock (&np->dn->dirent_lock);
- 
-@@ -812,7 +806,7 @@ diskfs_alloc_node (struct node *dir, mode_t mode, struct node **node)
- 
-   /* FIXME: We know that readnode couldn't put this in.  */
-   np->dn->dirnode = dir;
--  dir->references++;
-+  refcounts_ref (&dir->refcounts, NULL);
- 
-   *node = np;
-   return 0;
-diff --git a/isofs/inode.c b/isofs/inode.c
-index ec874df..f175cb9 100644
---- a/isofs/inode.c
-+++ b/isofs/inode.c
-@@ -533,12 +533,12 @@ diskfs_try_dropping_softrefs (struct node *np)
- 
-       /* Check if someone reacquired a reference through the
-          node_cache.  */
--      unsigned int references;
--      pthread_spin_lock (&diskfs_node_refcnt_lock);
--      references = np->references;
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      struct references result;
-+      refcounts_references (&np->refcounts, &result);
- 
--      if (references > 0)
-+      /* An additional weak reference is acquired by libdiskfs across
-+         calls to diskfs_try_dropping_softrefs.  */
-+      if (result.hard > 0 || result.weak > 2)
-         {
-           /* A reference was reacquired through a hash table lookup.
-              It's fine, we didn't touch anything yet. */
-diff --git a/libdiskfs/diskfs.h b/libdiskfs/diskfs.h
-index 2c68aa3..38234a3 100644
---- a/libdiskfs/diskfs.h
-+++ b/libdiskfs/diskfs.h
-@@ -96,8 +96,7 @@ struct node
- 
-   pthread_mutex_t lock;
- 
--  int references;		/* hard references */
--  int light_references;		/* light references */
-+  refcounts_t refcounts;
- 
-   mach_port_t sockaddr;		/* address for S_IFSOCK shortcut */
- 
-@@ -198,8 +197,6 @@ extern volatile struct mapped_time_value *diskfs_mtime;
-    be done by format independent code. */
- extern int diskfs_synchronous;
- 
--extern pthread_spinlock_t diskfs_node_refcnt_lock;
--
- extern int pager_port_type;
- 
- /* Whether the filesystem is currently writable or not. */
-@@ -448,14 +445,15 @@ error_t diskfs_alloc_node (struct node *dp, mode_t mode, struct node **np);
- void diskfs_free_node (struct node *np, mode_t mode);
- 
- /* Node NP has no more references; free local state, including *NP
--   if it isn't to be retained.  diskfs_node_refcnt_lock is held. */
-+   if it isn't to be retained.  */
- void diskfs_node_norefs (struct node *np);
- 
- /* The user must define this function.  Node NP has some light
-    references, but has just lost its last hard references.  Take steps
-    so that if any light references can be freed, they are.  NP is locked
-    as is the pager refcount lock.  This function will be called after
--   diskfs_lost_hardrefs.  */
-+   diskfs_lost_hardrefs.  An additional light reference is acquired by
-+   libdiskfs across calls to this function.  */
- void diskfs_try_dropping_softrefs (struct node *np);
- 
- /* The user must define this funcction.  Node NP has some light
-@@ -611,9 +609,8 @@ void diskfs_spawn_first_thread (ports_demuxer_type demuxer);
-    diskfs_init_completed once it has a valid proc and auth port. */
- void diskfs_start_bootstrap ();
- 
--/* Node NP now has no more references; clean all state.  The
--   _diskfs_node_refcnt_lock must be held, and will be released
--   upon return.  NP must be locked.  */
-+/* Node NP now has no more references; clean all state.  NP must be
-+   locked.  */
- void diskfs_drop_node (struct node *np);
- 
- /* Set on disk fields from NP->dn_stat; update ctime, atime, and mtime
-diff --git a/libdiskfs/init-init.c b/libdiskfs/init-init.c
-index 7a7f248..6c94faa 100644
---- a/libdiskfs/init-init.c
-+++ b/libdiskfs/init-init.c
-@@ -41,8 +41,6 @@ int _diskfs_noatime;
- 
- struct hurd_port _diskfs_exec_portcell;
- 
--pthread_spinlock_t diskfs_node_refcnt_lock = PTHREAD_SPINLOCK_INITIALIZER;
--
- pthread_spinlock_t _diskfs_control_lock = PTHREAD_SPINLOCK_INITIALIZER;
- int _diskfs_ncontrol_ports;
- 
-diff --git a/libdiskfs/node-drop.c b/libdiskfs/node-drop.c
-index 83eb590..fab3cfa 100644
---- a/libdiskfs/node-drop.c
-+++ b/libdiskfs/node-drop.c
-@@ -31,9 +31,8 @@ free_modreqs (struct modreq *mr)
- }
- 
- 
--/* Node NP now has no more references; clean all state.  The
--   diskfs_node_refcnt_lock must be held, and will be released
--   upon return.  NP must be locked.  */
-+/* Node NP now has no more references; clean all state.  NP must be
-+   locked.  */
- void
- diskfs_drop_node (struct node *np)
- {
-@@ -60,8 +59,7 @@ diskfs_drop_node (struct node *np)
- 	     and an nput.  The next time through, this routine
- 	     will notice that the size is zero, and not have to
- 	     do anything. */
--	  np->references++;
--	  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+	  refcounts_ref (&np->refcounts, NULL);
- 	  diskfs_truncate (np, 0);
- 	  
- 	  /* Force allocsize to zero; if truncate consistently fails this
-@@ -94,5 +92,4 @@ diskfs_drop_node (struct node *np)
-   assert (!np->sockaddr);
- 
-   diskfs_node_norefs (np);
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
- }
-diff --git a/libdiskfs/node-make.c b/libdiskfs/node-make.c
-index ff0cc0d..c7ca3b0 100644
---- a/libdiskfs/node-make.c
-+++ b/libdiskfs/node-make.c
-@@ -29,8 +29,7 @@ init_node (struct node *np, struct disknode *dn)
-   np->dn_stat_dirty = 0;
- 
-   pthread_mutex_init (&np->lock, NULL);
--  np->references = 1;
--  np->light_references = 0;
-+  refcounts_init (&np->refcounts, 1, 0);
-   np->owner = 0;
-   np->sockaddr = MACH_PORT_NULL;
- 
-diff --git a/libdiskfs/node-nput.c b/libdiskfs/node-nput.c
-index 5043ad1..2935ae2 100644
---- a/libdiskfs/node-nput.c
-+++ b/libdiskfs/node-nput.c
-@@ -26,56 +26,44 @@
- void
- diskfs_nput (struct node *np)
- {
--  int tried_drop_softrefs = 0;
-+  struct references result;
- 
-- loop:
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  assert (np->references);
--  np->references--;
--  if (np->references + np->light_references == 0)
--    diskfs_drop_node (np);
--  else if (np->references == 0 && !tried_drop_softrefs)
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  /* While we call the diskfs_try_dropping_softrefs, we need to hold
-+     one reference.  We use a weak reference for this purpose, which
-+     we acquire by demoting our hard reference to a weak one.  */
-+  refcounts_demote (&np->refcounts, &result);
- 
-+  if (result.hard == 0)
-+    {
-       /* This is our cue that something akin to "last process closes file"
- 	 in the POSIX.1 sense happened, so make sure any pending node time
- 	 updates now happen in a timely fashion.  */
-       diskfs_set_node_times (np);
--
-       diskfs_lost_hardrefs (np);
-       if (!np->dn_stat.st_nlink)
- 	{
--	  /* There are no links.  If there are soft references that
--	     can be dropped, we can't let them postpone deallocation.
--	     So attempt to drop them.  But that's a user-supplied
--	     routine, which might result in further recursive calls to
--	     the ref-counting system.  So we have to reacquire our
--	     reference around the call to forestall disaster. */
--	  pthread_spin_lock (&diskfs_node_refcnt_lock);
--	  np->references++;
--	  pthread_spin_unlock (&diskfs_node_refcnt_lock);
--
- 	  if (np->sockaddr != MACH_PORT_NULL)
- 	    {
- 	      mach_port_deallocate (mach_task_self (), np->sockaddr);
- 	      np->sockaddr = MACH_PORT_NULL;
- 	    }
- 
-+	  /* There are no links.  If there are soft references that
-+	     can be dropped, we can't let them postpone deallocation.
-+	     So attempt to drop them.  But that's a user-supplied
-+	     routine, which might result in further recursive calls to
-+	     the ref-counting system.  This is not a problem, as we
-+	     hold a weak reference ourselves. */
- 	  diskfs_try_dropping_softrefs (np);
--
--	  /* But there's no value in looping forever in this
--	     routine; only try to drop soft refs once. */
--	  tried_drop_softrefs = 1;
--
--	  /* Now we can drop the reference back... */
--	  goto loop;
- 	}
-       pthread_mutex_unlock (&np->lock);
-     }
--  else
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
--      pthread_mutex_unlock (&np->lock);
--    }
-+
-+  /* Finally get rid of our reference.  */
-+  refcounts_deref_weak (&np->refcounts, &result);
-+
-+  if (result.hard == 0 && result.weak == 0)
-+    diskfs_drop_node (np);
-+
-+  pthread_mutex_unlock (&np->lock);
- }
-diff --git a/libdiskfs/node-nputl.c b/libdiskfs/node-nputl.c
-index 1959665..8dac16e 100644
---- a/libdiskfs/node-nputl.c
-+++ b/libdiskfs/node-nputl.c
-@@ -25,14 +25,10 @@
- void
- diskfs_nput_light (struct node *np)
- {
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  assert (np->light_references);
--  np->light_references--;
--  if (np->references + np->light_references == 0)
-+  struct references result;
-+  refcounts_deref_weak (&np->refcounts, &result);
-+  if (result.hard == 0 && result.weak == 0)
-     diskfs_drop_node (np);
-   else
--    {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
--      pthread_mutex_unlock (&np->lock);
--    }
-+    pthread_mutex_unlock (&np->lock);
- }
-diff --git a/libdiskfs/node-nref.c b/libdiskfs/node-nref.c
-index 13cea05..89ffa4f 100644
---- a/libdiskfs/node-nref.c
-+++ b/libdiskfs/node-nref.c
-@@ -26,12 +26,10 @@
- void
- diskfs_nref (struct node *np)
- {
--  int new_hardref;
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  np->references++;
--  new_hardref = (np->references == 1);
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
--  if (new_hardref)
-+  struct references result;
-+  refcounts_ref (&np->refcounts, &result);
-+  assert (result.hard > 1 || result.weak > 0);
-+  if (result.hard == 1)
-     {
-       pthread_mutex_lock (&np->lock);
-       diskfs_new_hardrefs (np);
-diff --git a/libdiskfs/node-nrefl.c b/libdiskfs/node-nrefl.c
-index 9692247..b7af409 100644
---- a/libdiskfs/node-nrefl.c
-+++ b/libdiskfs/node-nrefl.c
-@@ -24,7 +24,7 @@
- void
- diskfs_nref_light (struct node *np)
- {
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  np->light_references++;
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  struct references result;
-+  refcounts_ref_weak (&np->refcounts, &result);
-+  assert (result.hard > 0 || result.weak > 1);
- }
-diff --git a/libdiskfs/node-nrele.c b/libdiskfs/node-nrele.c
-index cc68089..d962846 100644
---- a/libdiskfs/node-nrele.c
-+++ b/libdiskfs/node-nrele.c
-@@ -28,38 +28,36 @@
- void
- diskfs_nrele (struct node *np)
- {
--  int tried_drop_softrefs = 0;
-+  struct references result;
- 
-- loop:
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  assert (np->references);
--  np->references--;
--  if (np->references + np->light_references == 0)
--    {
--      pthread_mutex_lock (&np->lock);
--      diskfs_drop_node (np);
--    }
--  else if (np->references == 0)
-+  /* While we call the diskfs_try_dropping_softrefs, we need to hold
-+     one reference.  We use a weak reference for this purpose, which
-+     we acquire by demoting our hard reference to a weak one.  */
-+  refcounts_demote (&np->refcounts, &result);
-+
-+  if (result.hard == 0)
-     {
-       pthread_mutex_lock (&np->lock);
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-       diskfs_lost_hardrefs (np);
--      if (!np->dn_stat.st_nlink && !tried_drop_softrefs)
-+      if (!np->dn_stat.st_nlink)
- 	{
--	  /* Same issue here as in nput; see that for explanation */
--	  pthread_spin_lock (&diskfs_node_refcnt_lock);
--	  np->references++;
--	  pthread_spin_unlock (&diskfs_node_refcnt_lock);
--
-+	  /* There are no links.  If there are soft references that
-+	     can be dropped, we can't let them postpone deallocation.
-+	     So attempt to drop them.  But that's a user-supplied
-+	     routine, which might result in further recursive calls to
-+	     the ref-counting system.  This is not a problem, as we
-+	     hold a weak reference ourselves. */
- 	  diskfs_try_dropping_softrefs (np);
--	  tried_drop_softrefs = 1;
--
--	  /* Now we can drop the reference back... */
--	  pthread_mutex_unlock (&np->lock);
--	  goto loop;
- 	}
-       pthread_mutex_unlock (&np->lock);
-     }
--  else
--    pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+
-+  /* Finally get rid of our reference.  */
-+  refcounts_deref_weak (&np->refcounts, &result);
-+
-+  if (result.hard == 0 && result.weak == 0)
-+    {
-+      pthread_mutex_lock (&np->lock);
-+      diskfs_drop_node (np);
-+    }
- }
-diff --git a/libdiskfs/node-nrelel.c b/libdiskfs/node-nrelel.c
-index ee53b22..dc4f920 100644
---- a/libdiskfs/node-nrelel.c
-+++ b/libdiskfs/node-nrelel.c
-@@ -26,14 +26,11 @@
- void
- diskfs_nrele_light (struct node *np)
- {
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
--  assert (np->light_references);
--  np->light_references--;
--  if (np->references + np->light_references == 0)
-+  struct references result;
-+  refcounts_deref_weak (&np->refcounts, &result);
-+  if (result.hard == 0 && result.weak == 0)
-     {
-       pthread_mutex_lock (&np->lock);
-       diskfs_drop_node (np);
-     }
--  else
--    pthread_spin_unlock (&diskfs_node_refcnt_lock);
- }
-diff --git a/tmpfs/node.c b/tmpfs/node.c
-index e126437..a230819 100644
---- a/tmpfs/node.c
-+++ b/tmpfs/node.c
-@@ -284,12 +284,12 @@ diskfs_try_dropping_softrefs (struct node *np)
-   if (np->cache_id != 0)
-     {
-       /* Check if someone reacquired a reference.  */
--      unsigned int references;
--      pthread_spin_lock (&diskfs_node_refcnt_lock);
--      references = np->references;
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      struct references result;
-+      refcounts_references (&np->refcounts, &result);
- 
--      if (references > 0)
-+      /* An additional weak reference is acquired by libdiskfs across
-+         calls to diskfs_try_dropping_softrefs.  */
-+      if (result.hard > 0 || result.weak > 2)
-         {
-           /* A reference was reacquired.  It's fine, we didn't touch
-              anything yet. */
--- 
-2.0.0.rc2
-
diff --git a/debian/patches/series b/debian/patches/series
index 50d2de7b..2d703f80 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -41,11 +41,3 @@ xkb-compat.patch
 
 mach-defpager-protected-payload.patch
 
-0001-tmpfs-use-a-thread-timeout.patch
-0002-libports-use-a-global-hash-table-for-the-lookups.patch
-0003-libports-lock-less-reference-counting-for-port_info-.patch
-0004-ext2fs-use-a-seperate-lock-to-protect-nodehash.patch
-0005-fatfs-use-a-seperate-lock-to-protect-nodehash.patch
-0006-isofs-use-a-seperate-lock-to-protect-node_cache.patch
-0007-tmpfs-use-a-seperate-lock-to-protect-all_nodes.patch
-0008-libdiskfs-lock-less-reference-counting-of-nodes.patch