drop old patch series

16 files changed, 0 insertions, 2933 deletions

diff --git a/debian/patches/0001-libihash-fix-type-of-max_load.patch b/debian/patches/0001-libihash-fix-type-of-max_load.patch
deleted file mode 100644
index 557f0374..00000000
--- a/debian/patches/0001-libihash-fix-type-of-max_load.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From 6dcf53606fc7d46447176aab15954a897e19d6e5 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 13 May 2014 19:00:04 +0200
-Subject: [PATCH 01/15] libihash: fix type of max_load
-
-Previously, int was used for the field max_load of struct hurd_ihash.
-There is no reason for this as far as I can tell.  Furthermore,
-hurd_ihash_set_max_load takes an unsigned int max_load.
-
-* libihash/ihash.h (struct hurd_ihash): Use unsigned int for field
-max_load.
----
- libihash/ihash.h | 2 +-
- 1 file changed, 1 insertion(+), 1 deletion(-)
-
-diff --git a/libihash/ihash.h b/libihash/ihash.h
-index 6bdc925..a24f384 100644
---- a/libihash/ihash.h
-+++ b/libihash/ihash.h
-@@ -80,7 +80,7 @@ struct hurd_ihash
-   intptr_t locp_offset;
- 
-   /* The maximum load factor in percent.  */
--  int max_load;
-+  unsigned int max_load;
- 
-   /* When freeing or overwriting an element, this function is called
-      with the value as the first argument, and CLEANUP_DATA as the
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0002-libihash-use-an-integer-hash-function-on-the-keys.patch b/debian/patches/0002-libihash-use-an-integer-hash-function-on-the-keys.patch
deleted file mode 100644
index 820d0869..00000000
--- a/debian/patches/0002-libihash-use-an-integer-hash-function-on-the-keys.patch
+++ /dev/null
@@ -1,60 +0,0 @@
-From 2d898893815a980f1b821fcec267eb8e7ded678e Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Thu, 8 May 2014 15:45:00 +0200
-Subject: [PATCH 02/15] libihash: use an integer hash function on the keys
-
-Use an integer hash function to derive the index from the key.  This
-should reduce the number of collisions.
-
-* libihash/ihash.c (hash_int32): New function.
-(find_index): Use hash_int32 on the key to derive the index.
-(add_one): Likewise.
----
- libihash/ihash.c | 17 +++++++++++++++--
- 1 file changed, 15 insertions(+), 2 deletions(-)
-
-diff --git a/libihash/ihash.c b/libihash/ihash.c
-index d670fee..71ddc26 100644
---- a/libihash/ihash.c
-+++ b/libihash/ihash.c
-@@ -81,6 +81,19 @@ static const unsigned int ihash_nsizes = (sizeof ihash_sizes
- 					  / sizeof ihash_sizes[0]);
- 
- 
-+/* This is the integer finalizer from MurmurHash3.  */
-+static inline uint32_t
-+murmur3_mix32 (uint32_t h, unsigned int bits)
-+{
-+  h ^= h >> 16;
-+  h *= 0x85ebca6b;
-+  h ^= h >> 13;
-+  h *= 0xc2b2ae35;
-+  h ^= h >> 16;
-+
-+  return h >> (32 - bits);
-+}
-+
- /* Return 1 if the slot with the index IDX in the hash table HT is
-    empty, and 0 otherwise.  */
- static inline int
-@@ -111,7 +124,7 @@ find_index (hurd_ihash_t ht, hurd_ihash_key_t key)
-   unsigned int up_idx;
-   unsigned int down_idx;
- 
--  idx = key % ht->size;
-+  idx = murmur3_mix32 (key, 32) % ht->size;
- 
-   if (ht->items[idx].value == _HURD_IHASH_EMPTY || ht->items[idx].key == key)
-     return idx;
-@@ -264,7 +277,7 @@ add_one (hurd_ihash_t ht, hurd_ihash_key_t key, hurd_ihash_value_t value)
-   unsigned int idx;
-   unsigned int first_free;
- 
--  idx = key % ht->size;
-+  idx = murmur3_mix32 (key, 32) % ht->size;
-   first_free = idx;
- 
-   if (ht->items[idx].value != _HURD_IHASH_EMPTY && ht->items[idx].key != key)
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0003-libihash-use-linear-probing-and-fast-modulo-operatio.patch b/debian/patches/0003-libihash-use-linear-probing-and-fast-modulo-operatio.patch
deleted file mode 100644
index e1cce7e5..00000000
--- a/debian/patches/0003-libihash-use-linear-probing-and-fast-modulo-operatio.patch
+++ /dev/null
@@ -1,236 +0,0 @@
-From aa4d444a81c32e2f1036041ad7474fb13b8bf693 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Thu, 8 May 2014 18:33:57 +0200
-Subject: [PATCH 03/15] libihash: use linear probing and fast modulo operation
-
-libihash uses open addressing.  Previously, quadratic probing in both
-directions was used to resolve collisions.  Quadratic probing might
-result in a less efficient use of caches.
-
-Also, prime numbers of the form 4 * i + 3 were used as array sizes.
-This was used in combination with the integer modulo operation for
-hashing.  It has been known for some time that libihash suffers from
-collisions, so a integer hash function is now applied to the keys to
-derive the index.
-
-Use linear probing instead.  Also, use powers of two for the array
-sizes, so a bit mask can be used for the modulo operation.
-
-* libihash/ihash.c (ihash_sizes, ihash_nsizes): Remove.
-(find_index): Use linear probing and fast modulo operation.
-(add_one): Likewise.
-* libihash/ihash.h (HURD_IHASH_MIN_SIZE): New macro.
----
- libihash/ihash.c | 125 +++++++------------------------------------------------
- libihash/ihash.h |   4 ++
- 2 files changed, 19 insertions(+), 110 deletions(-)
-
-diff --git a/libihash/ihash.c b/libihash/ihash.c
-index 71ddc26..d628d75 100644
---- a/libihash/ihash.c
-+++ b/libihash/ihash.c
-@@ -31,55 +31,6 @@
- #include <assert.h>
- 
- #include "ihash.h"
--
--
--/* The prime numbers of the form 4 * i + 3 for some i, all greater
--   than twice the previous one and smaller than 2^40 (for now).  */
--static const uint64_t ihash_sizes[] =
--{
--  3,
--  7,
--  19,
--  43,
--  103,
--  211,
--  431,
--  863,
--  1747,
--  3499,
--  7019,
--  14051,
--  28111,
--  56239,
--  112507,
--  225023,
--  450067,
--  900139,
--  1800311,
--  3600659,
--  7201351,
--  14402743,
--  28805519,
--  57611039,
--  115222091,
--  230444239,
--  460888499,
--  921777067,
--  1843554151,
--  UINT64_C (3687108307),
--  UINT64_C (7374216631),
--  UINT64_C (14748433279),
--  UINT64_C (29496866579),
--  UINT64_C (58993733159),
--  UINT64_C (117987466379),
--  UINT64_C (235974932759),
--  UINT64_C (471949865531),
--  UINT64_C (943899731087)
--};
--
--static const unsigned int ihash_nsizes = (sizeof ihash_sizes
--					  / sizeof ihash_sizes[0]);
--
- 
- /* This is the integer finalizer from MurmurHash3.  */
- static inline uint32_t
-@@ -120,40 +71,24 @@ static inline int
- find_index (hurd_ihash_t ht, hurd_ihash_key_t key)
- {
-   unsigned int idx;
--  unsigned int i;
-   unsigned int up_idx;
--  unsigned int down_idx;
-+  unsigned int mask = ht->size - 1;
- 
--  idx = murmur3_mix32 (key, 32) % ht->size;
-+  idx = murmur3_mix32 (key, __builtin_ctz (ht->size));
- 
-   if (ht->items[idx].value == _HURD_IHASH_EMPTY || ht->items[idx].key == key)
-     return idx;
- 
--  /* Instead of calculating idx + 1, idx + 4, idx + 9, ..., idx + i^2,
--     we add 1, 3, 5, 7, etc to the previous index.  We do this in both
--     directions separately.  */
--  i = 1;
-   up_idx = idx;
--  down_idx = idx;
- 
-   do
-     {
--      up_idx = (up_idx + i) % ht->size;
-+      up_idx = (up_idx + 1) & mask;
-       if (ht->items[up_idx].value == _HURD_IHASH_EMPTY
- 	  || ht->items[up_idx].key == key)
- 	return up_idx;
--
--      if (down_idx < i)
--	down_idx += ht->size;
--      down_idx = (down_idx - i) % ht->size;
--      if (ht->items[down_idx].value == _HURD_IHASH_EMPTY
--	  || ht->items[down_idx].key == key)
--	return down_idx;
--
--      /* After (ht->size - 1) / 2 iterations, this will be 0.  */
--      i = (i + 2) % ht->size;
-     }
--  while (i);
-+  while (up_idx != idx);
- 
-   /* If we end up here, the item could not be found.  Return any
-      invalid index.  */
-@@ -277,52 +212,25 @@ add_one (hurd_ihash_t ht, hurd_ihash_key_t key, hurd_ihash_value_t value)
-   unsigned int idx;
-   unsigned int first_free;
- 
--  idx = murmur3_mix32 (key, 32) % ht->size;
-+  idx = murmur3_mix32 (key, __builtin_ctz (ht->size));
-   first_free = idx;
- 
-   if (ht->items[idx].value != _HURD_IHASH_EMPTY && ht->items[idx].key != key)
-     {
--      /* Instead of calculating idx + 1, idx + 4, idx + 9, ..., idx +
--         i^2, we add 1, 3, 5, 7, ... 2 * i - 1 to the previous index.
--         We do this in both directions separately.  */
--      unsigned int i = 1;
-+      unsigned int mask = ht->size - 1;
-       unsigned int up_idx = idx;
--      unsigned int down_idx = idx;
-- 
-+
-       do
- 	{
--	  up_idx = (up_idx + i) % ht->size;
-+        up_idx = (up_idx + 1) & mask;
- 	  if (ht->items[up_idx].value == _HURD_IHASH_EMPTY
- 	      || ht->items[up_idx].key == key)
- 	    {
- 	      idx = up_idx;
- 	      break;
- 	    }
--	  if (first_free == idx
--	      && ht->items[up_idx].value == _HURD_IHASH_DELETED)
--	    first_free = up_idx;
--
--	  if (down_idx < i)
--	    down_idx += ht->size;
--	  down_idx = (down_idx - i) % ht->size;
--	  if (down_idx < 0)
--	    down_idx += ht->size;
--	  else
--	    down_idx %= ht->size;
--	  if (ht->items[down_idx].value == _HURD_IHASH_EMPTY
--	      || ht->items[down_idx].key == key)
--	    {
--	      idx = down_idx;
--	      break;
--	    }
--	  if (first_free == idx
--	      && ht->items[down_idx].value == _HURD_IHASH_DELETED)
--	    first_free = down_idx;
--
--	  /* After (ht->size - 1) / 2 iterations, this will be 0.  */
--	  i = (i + 2) % ht->size;
- 	}
--      while (i);
-+      while (up_idx != idx);
-     }
- 
-   /* Remove the old entry for this key if necessary.  */
-@@ -365,21 +273,18 @@ hurd_ihash_add (hurd_ihash_t ht, hurd_ihash_key_t key, hurd_ihash_value_t item)
-   if (ht->size)
-     {
-       /* Only fill the hash table up to its maximum load factor.  */
--      if (ht->nr_items * 100 / ht->size <= ht->max_load)
-+      if ((ht->nr_items * 100) >> __builtin_ctz (ht->size) <= ht->max_load)
- 	if (add_one (ht, key, item))
- 	  return 0;
-     }
- 
-   /* The hash table is too small, and we have to increase it.  */
--  for (i = 0; i < ihash_nsizes; i++)
--    if (ihash_sizes[i] > old_ht.size)
--      break;
--  if (i == ihash_nsizes
--      || ihash_sizes[i] > SIZE_MAX / sizeof (struct _hurd_ihash_item))
--    return ENOMEM;		/* Surely will be true momentarily.  */
--
-   ht->nr_items = 0;
--  ht->size = ihash_sizes[i];
-+  if (ht->size == 0)
-+      ht->size = HURD_IHASH_MIN_SIZE;
-+  else
-+      ht->size <<= 1;
-+
-   /* calloc() will initialize all values to _HURD_IHASH_EMPTY implicitely.  */
-   ht->items = calloc (ht->size, sizeof (struct _hurd_ihash_item));
- 
-diff --git a/libihash/ihash.h b/libihash/ihash.h
-index a24f384..8829e51 100644
---- a/libihash/ihash.h
-+++ b/libihash/ihash.h
-@@ -93,6 +93,10 @@ typedef struct hurd_ihash *hurd_ihash_t;
- 
- /* Construction and destruction of hash tables.  */
- 
-+/* The size of the initial allocation in number of items.  This must
-+   be a power of two.  */
-+#define HURD_IHASH_MIN_SIZE	32
-+
- /* The default value for the maximum load factor in percent.  */
- #define HURD_IHASH_MAX_LOAD_DEFAULT 75
- 
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0004-libihash-use-fast-binary-scaling-to-determine-the-lo.patch b/debian/patches/0004-libihash-use-fast-binary-scaling-to-determine-the-lo.patch
deleted file mode 100644
index 1a835a7f..00000000
--- a/debian/patches/0004-libihash-use-fast-binary-scaling-to-determine-the-lo.patch
+++ /dev/null
@@ -1,116 +0,0 @@
-From 47ce159fbfca6e14f8ce442573c1fa10365113ff Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 13 May 2014 18:59:10 +0200
-Subject: [PATCH 04/15] libihash: use fast binary scaling to determine the load
-
-Expressing the maximum load in binary percent (where 128b% corresponds
-to 100%) allows us to use fast binary scaling to determine if the
-maximum load has been reached.
-
-* libihash/ihash.c (hurd_ihash_set_max_load): Update the comment.
-(hurd_ihash_add): Use fast binary scaling to determine the current
-load.
-* libihash/ihash.h (hurd_ihash_set_max_load): Update the comment.
----
- libihash/ihash.c | 37 +++++++++++++++++++++++++++----------
- libihash/ihash.h | 22 ++++++++++++----------
- 2 files changed, 39 insertions(+), 20 deletions(-)
-
-diff --git a/libihash/ihash.c b/libihash/ihash.c
-index d628d75..a4f92d1 100644
---- a/libihash/ihash.c
-+++ b/libihash/ihash.c
-@@ -180,14 +180,15 @@ hurd_ihash_set_cleanup (hurd_ihash_t ht, hurd_ihash_cleanup_t cleanup,
- }
- 
- 
--/* Set the maximum load factor in percent to MAX_LOAD, which should be
--   between 1 and 100.  The default is HURD_IHASH_MAX_LOAD_DEFAULT.
--   New elements are only added to the hash table while the number of
--   hashed elements is that much percent of the total size of the hash
--   table.  If more elements are added, the hash table is first
--   expanded and reorganized.  A MAX_LOAD of 100 will always fill the
--   whole table before enlarging it, but note that this will increase
--   the cost of operations significantly when the table is almost full.
-+/* Set the maximum load factor in binary percent to MAX_LOAD, which
-+   should be between 64 and 128.  The default is
-+   HURD_IHASH_MAX_LOAD_DEFAULT.  New elements are only added to the
-+   hash table while the number of hashed elements is that much percent
-+   of the total size of the hash table.  If more elements are added,
-+   the hash table is first expanded and reorganized.  A MAX_LOAD of
-+   128 will always fill the whole table before enlarging it, but note
-+   that this will increase the cost of operations significantly when
-+   the table is almost full.
- 
-    If the value is set to a smaller value than the current load
-    factor, the next reorganization will happen when a new item is
-@@ -272,8 +273,24 @@ hurd_ihash_add (hurd_ihash_t ht, hurd_ihash_key_t key, hurd_ihash_value_t item)
- 
-   if (ht->size)
-     {
--      /* Only fill the hash table up to its maximum load factor.  */
--      if ((ht->nr_items * 100) >> __builtin_ctz (ht->size) <= ht->max_load)
-+      /* Only fill the hash table up to its maximum load factor given
-+         as "binary percent", where 128b% corresponds to 100%.  As the
-+         size is always a power of two, and 128 is also, the quotient
-+         of both is also a power of two.  Therefore, we can use bit
-+         shifts to scale the number of items.
-+
-+         load = nr_items * 128 / size
-+              = nr_items^{log2 (128) - log2 (size)}
-+              = nr_items >> (log2 (size) - log2 (128))
-+                                -- if size >= 128
-+              = nr_items << (log2 (128) - log2 (size))
-+                                -- otherwise
-+      */
-+      int d = __builtin_ctz (ht->size) - 7;
-+      unsigned int load = d >= 0
-+        ? ht->nr_items >> d
-+        : ht->nr_items << -d;
-+      if (load <= ht->max_load)
- 	if (add_one (ht, key, item))
- 	  return 0;
-     }
-diff --git a/libihash/ihash.h b/libihash/ihash.h
-index 8829e51..e245db4 100644
---- a/libihash/ihash.h
-+++ b/libihash/ihash.h
-@@ -97,8 +97,9 @@ typedef struct hurd_ihash *hurd_ihash_t;
-    be a power of two.  */
- #define HURD_IHASH_MIN_SIZE	32
- 
--/* The default value for the maximum load factor in percent.  */
--#define HURD_IHASH_MAX_LOAD_DEFAULT 75
-+/* The default value for the maximum load factor in binary percent.
-+   96b% is equivalent to 75%, 128b% to 100%.  */
-+#define HURD_IHASH_MAX_LOAD_DEFAULT 96
- 
- /* The LOCP_OFFS to use if no location pointer is available.  */
- #define HURD_IHASH_NO_LOCP	INTPTR_MIN
-@@ -143,14 +144,15 @@ void hurd_ihash_free (hurd_ihash_t ht);
- void hurd_ihash_set_cleanup (hurd_ihash_t ht, hurd_ihash_cleanup_t cleanup,
- 			     void *cleanup_data);
- 
--/* Set the maximum load factor in percent to MAX_LOAD, which should be
--   between 50 and 100.  The default is HURD_IHASH_MAX_LOAD_DEFAULT.
--   New elements are only added to the hash table while the number of
--   hashed elements is that much percent of the total size of the hash
--   table.  If more elements are added, the hash table is first
--   expanded and reorganized.  A MAX_LOAD of 100 will always fill the
--   whole table before enlarging it, but note that this will increase
--   the cost of operations significantly when the table is almost full.
-+/* Set the maximum load factor in binary percent to MAX_LOAD, which
-+   should be between 64 and 128.  The default is
-+   HURD_IHASH_MAX_LOAD_DEFAULT.  New elements are only added to the
-+   hash table while the number of hashed elements is that much percent
-+   of the total size of the hash table.  If more elements are added,
-+   the hash table is first expanded and reorganized.  A MAX_LOAD of
-+   128 will always fill the whole table before enlarging it, but note
-+   that this will increase the cost of operations significantly when
-+   the table is almost full.
- 
-    If the value is set to a smaller value than the current load
-    factor, the next reorganization will happen when a new item is
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0005-include-add-lock-less-reference-counting-primitives.patch b/debian/patches/0005-include-add-lock-less-reference-counting-primitives.patch
deleted file mode 100644
index 4a4dd9dc..00000000
--- a/debian/patches/0005-include-add-lock-less-reference-counting-primitives.patch
+++ /dev/null
@@ -1,213 +0,0 @@
-From f6ed9ea2b93816dff52e33b71d69ed6787a57841 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 6 May 2014 19:52:04 +0200
-Subject: [PATCH 05/15] include: add lock-less reference counting primitives
-
-* include/refcount.h: New file.
----
- include/refcount.h | 193 +++++++++++++++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 193 insertions(+)
- create mode 100644 include/refcount.h
-
-diff --git a/include/refcount.h b/include/refcount.h
-new file mode 100644
-index 0000000..0816220
---- /dev/null
-+++ b/include/refcount.h
-@@ -0,0 +1,193 @@
-+/* Lock-less reference counting primitives
-+
-+   Copyright (C) 2014 Free Software Foundation, Inc.
-+
-+   Written by Justus Winter <4winter@informatik.uni-hamburg.de>
-+
-+   This file is part of the GNU Hurd.
-+
-+   The GNU Hurd is free software; you can redistribute it and/or
-+   modify it under the terms of the GNU General Public License as
-+   published by the Free Software Foundation; either version 2, or (at
-+   your option) any later version.
-+
-+   The GNU Hurd is distributed in the hope that it will be useful, but
-+   WITHOUT ANY WARRANTY; without even the implied warranty of
-+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-+   General Public License for more details.
-+
-+   You should have received a copy of the GNU General Public License
-+   along with the GNU Hurd.  If not, see <http://www.gnu.org/licenses/>.  */
-+
-+#ifndef _HURD_REFCOUNT_H_
-+#define _HURD_REFCOUNT_H_
-+
-+#include <assert.h>
-+#include <stdint.h>
-+
-+/* Simple reference counting.  */
-+
-+/* An opaque type.  You must not access these values directly.  */
-+typedef unsigned int refcount_t;
-+
-+/* Initialize REF with REFERENCES.  */
-+static inline void
-+refcount_init (refcount_t *ref, unsigned int references)
-+{
-+  *ref = references;
-+}
-+
-+/* Increment REF.  Return the result of the operation.  This function
-+   uses atomic operations.  It is not required to serialize calls to
-+   this function.  */
-+static inline unsigned int
-+refcount_ref (refcount_t *ref)
-+{
-+  unsigned int r;
-+  r = __atomic_add_fetch (ref, 1, __ATOMIC_RELAXED);
-+  assert (r != UINT_MAX);
-+  return r;
-+}
-+
-+/* Decrement REF.  Return the result of the operation.  This function
-+   uses atomic operations.  It is not required to serialize calls to
-+   this function.  */
-+static inline unsigned int
-+refcount_deref (refcount_t *ref)
-+{
-+  unsigned int r;
-+  r = __atomic_sub_fetch (ref, 1, __ATOMIC_RELAXED);
-+  assert (r != UINT_MAX);
-+  return r;
-+}
-+
-+/* Return REF.  This function uses atomic operations.  It is not
-+   required to serialize calls to this function.  */
-+static inline unsigned int
-+refcount_references (refcount_t *ref)
-+{
-+  return __atomic_load_n (ref, __ATOMIC_RELAXED);
-+}
-+
-+/* Reference counting with weak references.  */
-+
-+/* An opaque type.  You must not access these values directly.  */
-+typedef union _references refcounts_t;
-+
-+/* Instead, the functions manipulating refcounts_t values write the
-+   results into this kind of objects.  */
-+struct references {
-+  uint32_t hard;
-+  uint32_t weak;
-+};
-+
-+/* We use a union to convert struct reference values to uint64_t which
-+   we can manipulate atomically.  While this behavior is not
-+   guaranteed by the C standard, it is supported by all major
-+   compilers.  */
-+union _references {
-+  struct references references;
-+  uint64_t value;
-+};
-+
-+/* Initialize REF with HARD and WEAK references.  */
-+static inline void
-+refcounts_init (refcounts_t *ref, uint32_t hard, uint32_t weak)
-+{
-+  ref->references = (struct references) { .hard = hard, .weak = weak };
-+}
-+
-+/* Increment the hard reference count of REF.  If RESULT is not NULL,
-+   the result of the operation is written there.  This function uses
-+   atomic operations.  It is not required to serialize calls to this
-+   function.  */
-+static inline void
-+refcounts_ref (refcounts_t *ref, struct references *result)
-+{
-+  const union _references op = { .references = { .hard = 1 } };
-+  union _references r;
-+  r.value = __atomic_add_fetch (&ref->value, op.value, __ATOMIC_RELAXED);
-+  assert (r.references.hard != UINT32_MAX);
-+  if (result)
-+    *result = r.references;
-+}
-+
-+/* Decrement the hard reference count of REF.  If RESULT is not NULL,
-+   the result of the operation is written there.  This function uses
-+   atomic operations.  It is not required to serialize calls to this
-+   function.  */
-+static inline void
-+refcounts_deref (refcounts_t *ref, struct references *result)
-+{
-+  const union _references op = { .references = { .hard = 1 } };
-+  union _references r;
-+  r.value = __atomic_sub_fetch (&ref->value, op.value, __ATOMIC_RELAXED);
-+  assert (r.references.hard != UINT32_MAX);
-+  if (result)
-+    *result = r.references;
-+}
-+
-+/* Increment the weak reference count of REF.  If RESULT is not NULL,
-+   the result of the operation is written there.  This function uses
-+   atomic operations.  It is not required to serialize calls to this
-+   function.  */
-+static inline void
-+refcounts_ref_weak (refcounts_t *ref, struct references *result)
-+{
-+  const union _references op = { .references = { .weak = 1 } };
-+  union _references r;
-+  r.value = __atomic_add_fetch (&ref->value, op.value, __ATOMIC_RELAXED);
-+  assert (r.references.weak != UINT32_MAX);
-+  if (result)
-+    *result = r.references;
-+}
-+
-+/* Decrement the weak reference count of REF.  If RESULT is not NULL,
-+   the result of the operation is written there.  This function uses
-+   atomic operations.  It is not required to serialize calls to this
-+   function.  */
-+static inline void
-+refcounts_deref_weak (refcounts_t *ref, struct references *result)
-+{
-+  const union _references op = { .references = { .weak = 1 } };
-+  union _references r;
-+  r.value = __atomic_sub_fetch (&ref->value, op.value, __ATOMIC_RELAXED);
-+  assert (r.references.weak != UINT32_MAX);
-+  if (result)
-+    *result = r.references;
-+}
-+
-+/* Store the current reference counts of REF in RESULT.  This function
-+   uses atomic operations.  It is not required to serialize calls to
-+   this function.  */
-+static inline void
-+refcounts_references (refcounts_t *ref, struct references *result)
-+{
-+  union _references r;
-+  r.value =__atomic_load_n (&ref->value, __ATOMIC_RELAXED);
-+  *result = r.references;
-+}
-+
-+/* Return the hard reference count of REF.  This function uses atomic
-+   operations.  It is not required to serialize calls to this
-+   function.  */
-+static inline uint32_t
-+refcounts_hard_references (refcounts_t *ref)
-+{
-+  struct references result;
-+  refcounts_references (ref, &result);
-+  return result.hard;
-+}
-+
-+/* Return the weak reference count of REF.  This function uses atomic
-+   operations.  It is not required to serialize calls to this
-+   function.  */
-+static inline uint32_t
-+refcounts_weak_references (refcounts_t *ref)
-+{
-+  struct references result;
-+  refcounts_references (ref, &result);
-+  return result.weak;
-+}
-+
-+#endif /* _HURD_REFCOUNT_H_ */
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0006-libdiskfs-lock-less-reference-counting-for-peropen-o.patch b/debian/patches/0006-libdiskfs-lock-less-reference-counting-for-peropen-o.patch
deleted file mode 100644
index d688b3e5..00000000
--- a/debian/patches/0006-libdiskfs-lock-less-reference-counting-for-peropen-o.patch
+++ /dev/null
@@ -1,143 +0,0 @@
-From 78fbd3e318474ea61bc31783bc471809910b9244 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 6 May 2014 18:58:10 +0200
-Subject: [PATCH 06/15] libdiskfs: lock-less reference counting for peropen
- objects
-
-* libdiskfs/diskfs.h (struct peropen): Use refcount_t for field refcnt.
-* libdiskfs/peropen-make.c (diskfs_make_peropen): Initialize refcnt.
-* libdiskfs/peropen-rele.c (diskfs_release_peropen): Adjust accordingly.
-* libdiskfs/protid-make.c (diskfs_start_protid): Likewise.  Also, the
-node must no longer be locked, adjust comment accordingly.
-(diskfs_create_protid): Likewise.
----
- libdiskfs/diskfs.h       |  7 ++++---
- libdiskfs/peropen-make.c |  2 +-
- libdiskfs/peropen-rele.c | 21 ++++++++++-----------
- libdiskfs/protid-make.c  |  8 ++++----
- 4 files changed, 19 insertions(+), 19 deletions(-)
-
-diff --git a/libdiskfs/diskfs.h b/libdiskfs/diskfs.h
-index 8151ddc..ae1a150 100644
---- a/libdiskfs/diskfs.h
-+++ b/libdiskfs/diskfs.h
-@@ -28,6 +28,7 @@
- #include <hurd/iohelp.h>
- #include <idvec.h>
- #include <features.h>
-+#include <refcount.h>
- 
- #ifdef DISKFS_DEFINE_EXTERN_INLINE
- #define DISKFS_EXTERN_INLINE
-@@ -57,7 +58,7 @@ struct peropen
- {
-   int filepointer;
-   int lock_status;
--  int refcnt;
-+  refcount_t refcnt;
-   int openstat;
- 
-   struct node *np;
-@@ -792,12 +793,12 @@ diskfs_create_node (struct node *dir, const char *name, mode_t mode,
- 		    struct dirstat *ds);
- 
- /* Create and return a protid for an existing peropen PO in CRED,
--   referring to user USER.  The node PO->np must be locked. */
-+   referring to user USER.  */
- error_t diskfs_create_protid (struct peropen *po, struct iouser *user,
- 			      struct protid **cred);
- 
- /* Build and return in CRED a protid which has no user identification, for
--   peropen PO.  The node PO->np must be locked.  */
-+   peropen PO.  */
- error_t diskfs_start_protid (struct peropen *po, struct protid **cred);
- 
- /* Finish building protid CRED started with diskfs_start_protid;
-diff --git a/libdiskfs/peropen-make.c b/libdiskfs/peropen-make.c
-index eba037f..6d5ca01 100644
---- a/libdiskfs/peropen-make.c
-+++ b/libdiskfs/peropen-make.c
-@@ -31,7 +31,7 @@ diskfs_make_peropen (struct node *np, int flags, struct peropen *context,
- 
-   po->filepointer = 0;
-   po->lock_status = LOCK_UN;
--  po->refcnt = 0;
-+  refcount_init (&po->refcnt, 0);
-   po->openstat = flags;
-   po->np = np;
-   po->path = NULL;
-diff --git a/libdiskfs/peropen-rele.c b/libdiskfs/peropen-rele.c
-index d3f7492..877137b 100644
---- a/libdiskfs/peropen-rele.c
-+++ b/libdiskfs/peropen-rele.c
-@@ -22,13 +22,8 @@
- void
- diskfs_release_peropen (struct peropen *po)
- {
--  pthread_mutex_lock (&po->np->lock);
--
--  if (--po->refcnt)
--    {
--      pthread_mutex_unlock (&po->np->lock);
--      return;
--    }
-+  if (refcount_deref (&po->refcnt) > 0)
-+    return;
- 
-   if (po->root_parent)
-     mach_port_deallocate (mach_task_self (), po->root_parent);
-@@ -40,10 +35,14 @@ diskfs_release_peropen (struct peropen *po)
-     mach_port_deallocate (mach_task_self (), po->shadow_root_parent);
- 
-   if (po->lock_status != LOCK_UN)
--    fshelp_acquire_lock (&po->np->userlock, &po->lock_status,
--			 &po->np->lock, LOCK_UN);
--
--  diskfs_nput (po->np);
-+    {
-+      pthread_mutex_lock (&po->np->lock);
-+      fshelp_acquire_lock (&po->np->userlock, &po->lock_status,
-+                           &po->np->lock, LOCK_UN);
-+      diskfs_nput (po->np);
-+    }
-+  else
-+    diskfs_nrele (po->np);
- 
-   free (po->path);
-   free (po);
-diff --git a/libdiskfs/protid-make.c b/libdiskfs/protid-make.c
-index b39b92a..22aaa2e 100644
---- a/libdiskfs/protid-make.c
-+++ b/libdiskfs/protid-make.c
-@@ -20,7 +20,7 @@
- #include <assert.h>
- 
- /* Build and return in CRED a protid which has no user identification, for
--   peropen PO.  The node PO->np must be locked.  */
-+   peropen PO.  */
- error_t
- diskfs_start_protid (struct peropen *po, struct protid **cred)
- {
-@@ -29,7 +29,7 @@ diskfs_start_protid (struct peropen *po, struct protid **cred)
- 				 sizeof (struct protid), cred);
-   if (! err)
-     {
--      po->refcnt++;
-+      refcount_ref (&po->refcnt);
-       (*cred)->po = po;
-       (*cred)->shared_object = MACH_PORT_NULL;
-       (*cred)->mapped = 0;
-@@ -55,8 +55,8 @@ diskfs_finish_protid (struct protid *cred, struct iouser *user)
-   assert_perror (err);
- }
- 
--/* Create and return a protid for an existing peropen PO in CRED for USER.
--   The node PO->np must be locked. */
-+/* Create and return a protid for an existing peropen PO in CRED for
-+   USER.  */
- error_t
- diskfs_create_protid (struct peropen *po, struct iouser *user,
- 		      struct protid **cred)
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0007-libtrivfs-lock-less-reference-counting-for-trivfs_pe.patch b/debian/patches/0007-libtrivfs-lock-less-reference-counting-for-trivfs_pe.patch
deleted file mode 100644
index 7e3bf100..00000000
--- a/debian/patches/0007-libtrivfs-lock-less-reference-counting-for-trivfs_pe.patch
+++ /dev/null
@@ -1,172 +0,0 @@
-From c4bd59b5b1bda56338215fd509e9414ec8c7f052 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Tue, 6 May 2014 19:07:13 +0200
-Subject: [PATCH 07/15] libtrivfs: lock-less reference counting for
- trivfs_peropen objects
-
-* libtrivfs/trivfs.h (struct trivfs_peropen): Use refcount_t for field
-refcnt.
-(struct trivfs_control): Remove unused field lock.
-* libtrivfs/cntl-create.c (trivfs_create_control): Drop the mutex
-initialization.
-* libtrivfs/io-reauthenticate.c (trivfs_S_io_reauthenticate): Adjust
-accordingly.
-* libtrivfs/io-restrict-auth.c (trivfs_S_io_restrict_auth): Likewise.
-* libtrivfs/open.c (trivfs_open): Initialize refcnt.
-* libtrivfs/protid-clean.c (trivfs_clean_protid): Likewise.
-* libtrivfs/protid-dup.c (trivfs_protid_dup): Likewise.
----
- libtrivfs/cntl-create.c       |  1 -
- libtrivfs/io-reauthenticate.c |  5 +----
- libtrivfs/io-restrict-auth.c  |  4 +---
- libtrivfs/open.c              |  2 +-
- libtrivfs/protid-clean.c      | 26 +++++++++++++++-----------
- libtrivfs/protid-dup.c        |  5 +----
- libtrivfs/trivfs.h            |  4 ++--
- 7 files changed, 21 insertions(+), 26 deletions(-)
-
-diff --git a/libtrivfs/cntl-create.c b/libtrivfs/cntl-create.c
-index 910daf3..eb9a834 100644
---- a/libtrivfs/cntl-create.c
-+++ b/libtrivfs/cntl-create.c
-@@ -85,7 +85,6 @@ trivfs_create_control (mach_port_t underlying,
- 	}
- 
-       (*control)->hook = 0;
--      pthread_mutex_init (&(*control)->lock, NULL);
-     }
- 
- out:
-diff --git a/libtrivfs/io-reauthenticate.c b/libtrivfs/io-reauthenticate.c
-index 7677697..df0ed2e 100644
---- a/libtrivfs/io-reauthenticate.c
-+++ b/libtrivfs/io-reauthenticate.c
-@@ -62,11 +62,8 @@ trivfs_S_io_reauthenticate (struct trivfs_protid *cred,
-     newcred->isroot = 1;
- 
-   newcred->hook = cred->hook;
--
--  pthread_mutex_lock (&cred->po->cntl->lock);
-   newcred->po = cred->po;
--  newcred->po->refcnt++;
--  pthread_mutex_unlock (&cred->po->cntl->lock);
-+  refcount_ref (&newcred->po->refcnt);
- 
-   do
-     err = io_restrict_auth (newcred->po->cntl->underlying, &newcred->realnode,
-diff --git a/libtrivfs/io-restrict-auth.c b/libtrivfs/io-restrict-auth.c
-index 65b4fd6..39670fe 100644
---- a/libtrivfs/io-restrict-auth.c
-+++ b/libtrivfs/io-restrict-auth.c
-@@ -110,10 +110,8 @@ trivfs_S_io_restrict_auth (struct trivfs_protid *cred,
-     }
- 
-   newcred->isroot = 0;
--  pthread_mutex_lock (&cred->po->cntl->lock);
-   newcred->po = cred->po;
--  newcred->po->refcnt++;
--  pthread_mutex_unlock (&cred->po->cntl->lock);
-+  refcount_ref (&newcred->po->refcnt);
-   if (cred->isroot && idvec_contains (user->uids, 0))
-     newcred->isroot = 1;
-   newcred->user = user;
-diff --git a/libtrivfs/open.c b/libtrivfs/open.c
-index f64d2ff..97e70a1 100644
---- a/libtrivfs/open.c
-+++ b/libtrivfs/open.c
-@@ -40,7 +40,7 @@ trivfs_open (struct trivfs_control *cntl,
- 
-   ports_port_ref (cntl);
- 
--  po->refcnt = 1;
-+  refcount_init (&po->refcnt, 1);
-   po->cntl = cntl;
-   po->openmodes = flags;
-   po->hook = 0;
-diff --git a/libtrivfs/protid-clean.c b/libtrivfs/protid-clean.c
-index f98da6a..cce736d 100644
---- a/libtrivfs/protid-clean.c
-+++ b/libtrivfs/protid-clean.c
-@@ -31,19 +31,23 @@ trivfs_clean_protid (void *arg)
-     (*trivfs_protid_destroy_hook) (cred);
- 
-   /* If we hold the only reference to the peropen, try to get rid of it. */
--  pthread_mutex_lock (&cntl->lock);
--  if (cred->po->refcnt == 1 && trivfs_peropen_destroy_hook)
-+  if (refcount_deref (&cred->po->refcnt) == 0)
-     {
--      pthread_mutex_unlock (&cntl->lock);
--      (*trivfs_peropen_destroy_hook) (cred->po);
--      pthread_mutex_lock (&cntl->lock);
-+      if (trivfs_peropen_destroy_hook)
-+        {
-+          /* Reaquire a reference while we call the hook.  */
-+          refcount_ref (&cred->po->refcnt);
-+          (*trivfs_peropen_destroy_hook) (cred->po);
-+          if (refcount_deref (&cred->po->refcnt) == 0)
-+            goto free_po;
-+        }
-+      else
-+        {
-+        free_po:
-+          ports_port_deref (cntl);
-+          free (cred->po);
-+        }
-     }
--  if (--cred->po->refcnt == 0)
--    {
--      ports_port_deref (cntl);
--      free (cred->po);
--    }
--  pthread_mutex_unlock (&cntl->lock);
- 
-   iohelp_free_iouser (cred->user);
- 
-diff --git a/libtrivfs/protid-dup.c b/libtrivfs/protid-dup.c
-index 6169603..75f3ca8 100644
---- a/libtrivfs/protid-dup.c
-+++ b/libtrivfs/protid-dup.c
-@@ -35,11 +35,8 @@ trivfs_protid_dup (struct trivfs_protid *cred, struct trivfs_protid **dup)
- 
-   if (! err)
-     {
--      pthread_mutex_lock (&cred->po->cntl->lock);
-       new->po = cred->po;
--      new->po->refcnt++;
--      pthread_mutex_unlock (&cred->po->cntl->lock);
--
-+      refcount_ref (&new->po->refcnt);
-       new->isroot = cred->isroot;
- 
-       err = iohelp_dup_iouser (&new->user, cred->user);
-diff --git a/libtrivfs/trivfs.h b/libtrivfs/trivfs.h
-index bb456ff..8902338 100644
---- a/libtrivfs/trivfs.h
-+++ b/libtrivfs/trivfs.h
-@@ -24,6 +24,7 @@
- #include <mach/mach.h>
- #include <hurd/ports.h>
- #include <hurd/iohelp.h>
-+#include <refcount.h>
- 
- struct trivfs_protid
- {
-@@ -41,14 +42,13 @@ struct trivfs_peropen
- {
-   void *hook;			/* for user use */
-   int openmodes;
--  int refcnt;
-+  refcount_t refcnt;
-   struct trivfs_control *cntl;
- };
- 
- struct trivfs_control
- {
-   struct port_info pi;
--  pthread_mutex_t lock;
-   struct port_class *protid_class;
-   struct port_bucket *protid_bucket;
-   mach_port_t filesys_id;
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0008-libports-use-a-single-hash-table.patch b/debian/patches/0008-libports-use-a-single-hash-table.patch
deleted file mode 100644
index b76029cd..00000000
--- a/debian/patches/0008-libports-use-a-single-hash-table.patch
+++ /dev/null
@@ -1,619 +0,0 @@
-From 5d9f77f93862d2f404704071ccb79efdd506e2a7 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 08/15] libports: use a single hash table
-
-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 single hash table instead.  Furthermore, serialize access to it
-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 to treat
-the bucket argument the same way as the class argument.
-* libports/class-iterate.c (ports_class_iterate): Just call the
-generalized _ports_bucket_class_iterate with NULL as class.
-* 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           | 21 +++++++++++++++------
- libports/claim-right.c              |  6 ++++--
- libports/class-iterate.c            | 10 +---------
- libports/complete-deallocate.c      |  8 +++-----
- libports/create-bucket.c            |  7 -------
- libports/create-class.c             |  1 -
- libports/create-internal.c          |  9 +++------
- libports/destroy-right.c            |  6 +++---
- libports/import-port.c              |  9 +++------
- libports/inhibit-all-rpcs.c         | 27 +++++++++++++--------------
- libports/inhibit-bucket-rpcs.c      |  7 +++++--
- libports/inhibit-class-rpcs.c       | 27 ++++++++++++++++++---------
- libports/init.c                     |  7 ++++++-
- libports/lookup-port.c              | 21 ++++++++-------------
- libports/ports.h                    | 11 ++++++-----
- libports/reallocate-from-external.c | 16 ++++++++++------
- libports/reallocate-port.c          | 10 +++++++---
- libports/transfer-right.c           | 20 +++++++++++++-------
- 18 files changed, 118 insertions(+), 105 deletions(-)
-
-diff --git a/libports/bucket-iterate.c b/libports/bucket-iterate.c
-index babc204..d5f590e 100644
---- a/libports/bucket-iterate.c
-+++ b/libports/bucket-iterate.c
-@@ -36,35 +36,44 @@ _ports_bucket_class_iterate (struct port_bucket *bucket,
-   error_t err;
- 
-   pthread_mutex_lock (&_ports_lock);
-+  pthread_mutex_lock (&_ports_htable_lock);
- 
--  if (bucket->htable.nr_items == 0)
-+  if (_ports_htable.nr_items == 0)
-     {
--      pthread_mutex_unlock (&_ports_lock);
-+      pthread_mutex_unlock (&_ports_htable_lock);
-       return 0;
-     }
- 
--  nr_items = bucket->htable.nr_items;
-+  nr_items = _ports_htable.nr_items;
-   p = malloc (nr_items * sizeof *p);
-   if (p == NULL)
-     {
--      pthread_mutex_unlock (&_ports_lock);
-+      pthread_mutex_unlock (&_ports_htable_lock);
-       return ENOMEM;
-     }
- 
-   n = 0;
--  HURD_IHASH_ITERATE (&bucket->htable, arg)
-+  HURD_IHASH_ITERATE (&_ports_htable, arg)
-     {
-       struct port_info *const pi = arg;
- 
--      if (class == 0 || pi->class == class)
-+      if ((bucket == NULL || pi->bucket == bucket)
-+          && (class == NULL || pi->class == class))
- 	{
- 	  pi->refcnt++;
- 	  p[n] = pi;
- 	  n++;
- 	}
-     }
-+  pthread_mutex_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.  */
-diff --git a/libports/claim-right.c b/libports/claim-right.c
-index 4851ea3..f453a82 100644
---- a/libports/claim-right.c
-+++ b/libports/claim-right.c
-@@ -34,10 +34,12 @@ ports_claim_right (void *portstruct)
-   if (ret == MACH_PORT_NULL)
-     return ret;
- 
--  pthread_mutex_lock (&_ports_lock);
--  hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-+  pthread_mutex_lock (&_ports_htable_lock);
-+  hurd_ihash_locp_remove (&_ports_htable, pi->hentry);
-+  pthread_mutex_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..5cfcfc8 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 (NULL, class, fun);
- }
-diff --git a/libports/complete-deallocate.c b/libports/complete-deallocate.c
-index 8ce095b..1371d92 100644
---- a/libports/complete-deallocate.c
-+++ b/libports/complete-deallocate.c
-@@ -29,16 +29,14 @@ _ports_complete_deallocate (struct port_info *pi)
- 
-   if (pi->port_right)
-     {
--      hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-+      pthread_mutex_lock (&_ports_htable_lock);
-+      hurd_ihash_locp_remove (&_ports_htable, pi->hentry);
-+      pthread_mutex_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..9f6821d 100644
---- a/libports/create-bucket.c
-+++ b/libports/create-bucket.c
-@@ -46,13 +46,6 @@ ports_create_bucket ()
-       return NULL;
-     }
- 
--  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..e773dd6 100644
---- a/libports/create-internal.c
-+++ b/libports/create-internal.c
-@@ -81,15 +81,12 @@ _ports_create_port_internal (struct port_class *class,
-       goto loop;
-     }
- 
--  err = hurd_ihash_add (&bucket->htable, port, pi);
-+  pthread_mutex_lock (&_ports_htable_lock);
-+  err = hurd_ihash_add (&_ports_htable, port, pi);
-+  pthread_mutex_unlock (&_ports_htable_lock);
-   if (err)
-     goto lose;
- 
--  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..6ba7302 100644
---- a/libports/destroy-right.c
-+++ b/libports/destroy-right.c
-@@ -30,12 +30,12 @@ ports_destroy_right (void *portstruct)
- 
-   if (pi->port_right != MACH_PORT_NULL)
-     {
--      pthread_mutex_lock (&_ports_lock);
--      hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-+      pthread_mutex_lock (&_ports_htable_lock);
-+      hurd_ihash_locp_remove (&_ports_htable, pi->hentry);
-+      pthread_mutex_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..d0b2ea4 100644
---- a/libports/import-port.c
-+++ b/libports/import-port.c
-@@ -75,15 +75,12 @@ ports_import_port (struct port_class *class, struct port_bucket *bucket,
-       goto loop;
-     }
- 
--  err = hurd_ihash_add (&bucket->htable, port, pi);
-+  pthread_mutex_lock (&_ports_htable_lock);
-+  err = hurd_ihash_add (&_ports_htable, port, pi);
-+  pthread_mutex_unlock (&_ports_htable_lock);
-   if (err)
-     goto lose;
- 
--  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..83c291f 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_mutex_lock (&_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_mutex_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..ed3e29d 100644
---- a/libports/inhibit-bucket-rpcs.c
-+++ b/libports/inhibit-bucket-rpcs.c
-@@ -35,10 +35,13 @@ ports_inhibit_bucket_rpcs (struct port_bucket *bucket)
-     {
-       int this_one = 0;
- 
--      HURD_IHASH_ITERATE (&bucket->htable, portstruct)
-+      pthread_mutex_lock (&_ports_htable_lock);
-+      HURD_IHASH_ITERATE (&_ports_htable, portstruct)
- 	{
- 	  struct rpc_info *rpc;
- 	  struct port_info *pi = portstruct;
-+	  if (pi->bucket != bucket)
-+	    continue;
- 
- 	  for (rpc = pi->current_rpcs; rpc; rpc = rpc->next)
- 	    {
-@@ -49,7 +52,7 @@ ports_inhibit_bucket_rpcs (struct port_bucket *bucket)
- 		hurd_thread_cancel (rpc->thread);
- 	    }
- 	}
--
-+      pthread_mutex_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..1580bdb 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_mutex_lock (&_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_mutex_unlock (&_ports_htable_lock);
- 
-       while (class->rpcs > this_one)
- 	{
-diff --git a/libports/init.c b/libports/init.c
-index 3ef5388..8fbc7e8 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, hentry));
-+pthread_mutex_t _ports_htable_lock = PTHREAD_MUTEX_INITIALIZER;
-+
- int _ports_total_rpcs;
- int _ports_flags;
-diff --git a/libports/lookup-port.c b/libports/lookup-port.c
-index f79f6f0..fbb13ef 100644
---- a/libports/lookup-port.c
-+++ b/libports/lookup-port.c
-@@ -26,26 +26,21 @@ 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_mutex_lock (&_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_mutex_unlock (&_ports_htable_lock);
-   pthread_mutex_unlock (&_ports_lock);
-   
-   return pi;
-diff --git a/libports/ports.h b/libports/ports.h
-index 7f13124..9c5f14d 100644
---- a/libports/ports.h
-+++ b/libports/ports.h
-@@ -48,7 +48,6 @@ 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 */
- };
- typedef struct port_info *port_info_t;
- 
-@@ -61,11 +60,9 @@ typedef struct port_info *port_info_t;
- struct port_bucket
- {
-   mach_port_t portset;
--  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 +75,6 @@ struct port_class
- {
-   int flags;
-   int rpcs;
--  struct port_info *ports;
-   int count;
-   void (*clean_routine) (void *);
-   void (*dropweak_routine) (void *);
-@@ -402,7 +398,12 @@ 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 hash table mapping port names to port_info objects.  */
-+extern struct hurd_ihash _ports_htable;
-+/* Access to the hash table is protected by this lock.  */
-+extern pthread_mutex_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..bbcf9ba 100644
---- a/libports/reallocate-from-external.c
-+++ b/libports/reallocate-from-external.c
-@@ -43,8 +43,10 @@ ports_reallocate_from_external (void *portstruct, mach_port_t receive)
- 			    MACH_PORT_RIGHT_RECEIVE, -1);
-   assert_perror (err);
- 
--  hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
--  
-+  pthread_mutex_lock (&_ports_htable_lock);
-+  hurd_ihash_locp_remove (&_ports_htable, pi->hentry);
-+  pthread_mutex_unlock (&_ports_htable_lock);
-+
-   if ((pi->flags & PORT_HAS_SENDRIGHTS) && !stat.mps_srights)
-     {
-       dropref = 1;
-@@ -59,11 +61,13 @@ 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);
--  assert_perror (err);
-+
-+  pthread_mutex_lock (&_ports_htable_lock);
-+  err = hurd_ihash_add (&_ports_htable, receive, pi);
-+  pthread_mutex_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..99c4041 100644
---- a/libports/reallocate-port.c
-+++ b/libports/reallocate-port.c
-@@ -36,7 +36,9 @@ ports_reallocate_port (void *portstruct)
- 			    MACH_PORT_RIGHT_RECEIVE, -1);
-   assert_perror (err);
- 
--  hurd_ihash_locp_remove (&pi->bucket->htable, pi->hentry);
-+  pthread_mutex_lock (&_ports_htable_lock);
-+  hurd_ihash_locp_remove (&_ports_htable, pi->hentry);
-+  pthread_mutex_unlock (&_ports_htable_lock);
- 
-   err = mach_port_allocate (mach_task_self (), MACH_PORT_RIGHT_RECEIVE,
- 			    &pi->port_right);
-@@ -48,9 +50,11 @@ ports_reallocate_port (void *portstruct)
-     }
-   pi->cancel_threshold = 0;
-   pi->mscount = 0;
--  err = hurd_ihash_add (&pi->bucket->htable, pi->port_right, pi);
--  assert_perror (err);
-+  pthread_mutex_lock (&_ports_htable_lock);
-+  err = hurd_ihash_add (&_ports_htable, pi->port_right, pi);
-+  pthread_mutex_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..5a7653d 100644
---- a/libports/transfer-right.c
-+++ b/libports/transfer-right.c
-@@ -41,7 +41,9 @@ ports_transfer_right (void *tostruct,
-   port = frompi->port_right;
-   if (port != MACH_PORT_NULL)
-     {
--      hurd_ihash_locp_remove (&frompi->bucket->htable, frompi->hentry);
-+      pthread_mutex_lock (&_ports_htable_lock);
-+      hurd_ihash_locp_remove (&_ports_htable, frompi->hentry);
-+      pthread_mutex_unlock (&_ports_htable_lock);
-       frompi->port_right = MACH_PORT_NULL;
-       if (frompi->flags & PORT_HAS_SENDRIGHTS)
- 	{
-@@ -54,7 +56,9 @@ ports_transfer_right (void *tostruct,
-   /* Destroy the existing right in TOPI. */
-   if (topi->port_right != MACH_PORT_NULL)
-     {
--      hurd_ihash_locp_remove (&topi->bucket->htable, topi->hentry);
-+      pthread_mutex_lock (&_ports_htable_lock);
-+      hurd_ihash_locp_remove (&_ports_htable, topi->hentry);
-+      pthread_mutex_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 +78,14 @@ 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)
-     {
--      err = hurd_ihash_add (&topi->bucket->htable, port, topi);
-+      pthread_mutex_lock (&_ports_htable_lock);
-+      err = hurd_ihash_add (&_ports_htable, port, topi);
-+      pthread_mutex_unlock (&_ports_htable_lock);
-       assert_perror (err);
-       if (topi->bucket != frompi->bucket)
-         {
-@@ -86,9 +94,7 @@ 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.rc0
-
diff --git a/debian/patches/0009-libports-lock-less-reference-counting-for-port_info-.patch b/debian/patches/0009-libports-lock-less-reference-counting-for-port_info-.patch
deleted file mode 100644
index 6c0f4eeb..00000000
--- a/debian/patches/0009-libports-lock-less-reference-counting-for-port_info-.patch
+++ /dev/null
@@ -1,345 +0,0 @@
-From 6f5ee0a47ed6bade01f30ceda2be793bcfbb8661 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 09/15] 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      | 15 +++++++++++++++
- libports/create-internal.c          |  3 +--
- libports/get-right.c                |  2 +-
- libports/import-port.c              |  3 +--
- libports/lookup-port.c              |  6 ++----
- 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, 58 insertions(+), 53 deletions(-)
-
-diff --git a/libports/bucket-iterate.c b/libports/bucket-iterate.c
-index d5f590e..2a2b2b6 100644
---- a/libports/bucket-iterate.c
-+++ b/libports/bucket-iterate.c
-@@ -35,7 +35,6 @@ _ports_bucket_class_iterate (struct port_bucket *bucket,
-   size_t i, n, nr_items;
-   error_t err;
- 
--  pthread_mutex_lock (&_ports_lock);
-   pthread_mutex_lock (&_ports_htable_lock);
- 
-   if (_ports_htable.nr_items == 0)
-@@ -60,13 +59,12 @@ _ports_bucket_class_iterate (struct port_bucket *bucket,
-       if ((bucket == NULL || pi->bucket == bucket)
-           && (class == NULL || pi->class == class))
- 	{
--	  pi->refcnt++;
-+	  refcounts_ref (&pi->refcounts, NULL);
- 	  p[n] = pi;
- 	  n++;
- 	}
-     }
-   pthread_mutex_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 1371d92..6c9074a 100644
---- a/libports/complete-deallocate.c
-+++ b/libports/complete-deallocate.c
-@@ -29,14 +29,29 @@ _ports_complete_deallocate (struct port_info *pi)
- 
-   if (pi->port_right)
-     {
-+      struct references result;
-+
-       pthread_mutex_lock (&_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->hentry);
-       pthread_mutex_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 e773dd6..9e3824d 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 d0b2ea4..e250b0e 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 fbb13ef..1bf012f 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_mutex_lock (&_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_mutex_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..dd38f55 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 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 before we release our hard reference.
-+     The order is important here to prevent a race.  */
-+  if (pi->class->dropweak_routine)
-+    refcounts_ref_weak (&pi->refcounts, NULL);
-+
-+  refcounts_deref (&pi->refcounts, &result);
-+
-+  if (pi->class->dropweak_routine)
-     {
--      pthread_mutex_unlock (&_ports_lock);
--      (*pi->class->dropweak_routine) (pi);
--      trieddroppingweakrefs = 1;
--      goto retry;
-+      if (result.hard == 0 && result.weak > 1)
-+        (*pi->class->dropweak_routine) (pi);
-+      refcounts_deref_weak (&pi->refcounts, &result);
-     }
--  
--  assert (pi->refcnt);
- 
--  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 9c5f14d..116e920 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 bbcf9ba..5ee579d 100644
---- a/libports/reallocate-from-external.c
-+++ b/libports/reallocate-from-external.c
-@@ -55,7 +55,7 @@ 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 5a7653d..d3ff0f4 100644
---- a/libports/transfer-right.c
-+++ b/libports/transfer-right.c
-@@ -70,7 +70,7 @@ 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.rc0
-
diff --git a/debian/patches/0010-ext2fs-improve-enable-disable-_caching.patch b/debian/patches/0010-ext2fs-improve-enable-disable-_caching.patch
deleted file mode 100644
index 8cf1fabe..00000000
--- a/debian/patches/0010-ext2fs-improve-enable-disable-_caching.patch
+++ /dev/null
@@ -1,38 +0,0 @@
-From 283c322efe55cf00f25cabaa22d48078b94c526e Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Fri, 9 May 2014 10:07:28 +0200
-Subject: [PATCH 10/15] ext2fs: improve {enable,disable}_caching
-
-* ext2fs/pager.c (enable_caching, disable_caching): Iterate over the
-pager class instead of over both pager buckets.
----
- ext2fs/pager.c | 6 ++----
- 1 file changed, 2 insertions(+), 4 deletions(-)
-
-diff --git a/ext2fs/pager.c b/ext2fs/pager.c
-index 017efcc..6328f3b 100644
---- a/ext2fs/pager.c
-+++ b/ext2fs/pager.c
-@@ -1409,8 +1409,7 @@ disable_caching ()
- 
-   /* Loop through the pagers and turn off caching one by one,
-      synchronously.  That should cause termination of each pager. */
--  ports_bucket_iterate (disk_pager_bucket, block_cache);
--  ports_bucket_iterate (file_pager_bucket, block_cache);
-+  ports_class_iterate (_pager_class, block_cache);
- }
- 
- static void
-@@ -1438,8 +1437,7 @@ enable_caching ()
-       return 0;
-     }
- 
--  ports_bucket_iterate (disk_pager_bucket, enable_cache);
--  ports_bucket_iterate (file_pager_bucket, enable_cache);
-+  ports_class_iterate (_pager_class, enable_cache);
- }
- 
- /* Tell diskfs if there are pagers exported, and if none, then
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0011-fatfs-improve-enable-disable-_caching.patch b/debian/patches/0011-fatfs-improve-enable-disable-_caching.patch
deleted file mode 100644
index 45b3f45a..00000000
--- a/debian/patches/0011-fatfs-improve-enable-disable-_caching.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From 555a58f92cfcf75c5650ef1d96080c512a511f64 Mon Sep 17 00:00:00 2001
-From: Justus Winter <4winter@informatik.uni-hamburg.de>
-Date: Fri, 9 May 2014 10:11:45 +0200
-Subject: [PATCH 11/15] fatfs: improve {enable,disable}_caching
-
-* fatfs/pager.c (enable_caching, disable_caching): Iterate over the
-pager class instead of over both pager buckets.
----
- fatfs/pager.c | 9 +++++----
- 1 file changed, 5 insertions(+), 4 deletions(-)
-
-diff --git a/fatfs/pager.c b/fatfs/pager.c
-index f855ecf..7aa5c5e 100644
---- a/fatfs/pager.c
-+++ b/fatfs/pager.c
-@@ -23,6 +23,9 @@
- #include <hurd/store.h>
- #include "fatfs.h"
- 
-+/* XXX */
-+#include "../libpager/priv.h"
-+
- /* A ports bucket to hold disk pager ports.  */
- struct port_bucket *disk_pager_bucket;
- 
-@@ -963,8 +966,7 @@ disable_caching ()
- 
-   /* Loop through the pagers and turn off caching one by one,
-      synchronously.  That should cause termination of each pager.  */
--  ports_bucket_iterate (disk_pager_bucket, block_cache);
--  ports_bucket_iterate (file_pager_bucket, block_cache);
-+  ports_class_iterate (_pager_class, block_cache);
- }
- 	  
- static void
-@@ -992,8 +994,7 @@ enable_caching ()
-       return 0;
-     }
- 
--  ports_bucket_iterate (disk_pager_bucket, enable_cache);
--  ports_bucket_iterate (file_pager_bucket, enable_cache);
-+  ports_class_iterate (_pager_class, enable_cache);
- }
- 	    
- /* Tell diskfs if there are pagers exported, and if none, then
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0012-ext2fs-use-a-seperate-lock-to-protect-nodehash.patch b/debian/patches/0012-ext2fs-use-a-seperate-lock-to-protect-nodehash.patch
deleted file mode 100644
index 20e9d5f3..00000000
--- a/debian/patches/0012-ext2fs-use-a-seperate-lock-to-protect-nodehash.patch
+++ /dev/null
@@ -1,190 +0,0 @@
-From 72937c396cc7a51e5aff5f79ee60e092f54f135c 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 12/15] 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 (nodehash_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 | 68 ++++++++++++++++++++++++++++++++++++++++++----------------
- 1 file changed, 50 insertions(+), 18 deletions(-)
-
-diff --git a/ext2fs/inode.c b/ext2fs/inode.c
-index ed78265..aa070a2 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
-+   nodehash_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_mutex_t nodehash_lock = PTHREAD_MUTEX_INITIALIZER;
- 
- static error_t read_node (struct node *np);
- 
-@@ -71,12 +81,12 @@ diskfs_cached_lookup (ino_t inum, struct node **npp)
-   struct node *np;
-   struct disknode *dn;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_lock (&nodehash_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_mutex_unlock (&nodehash_lock);
- 	pthread_mutex_lock (&np->lock);
- 	*npp = np;
- 	return 0;
-@@ -86,7 +96,7 @@ diskfs_cached_lookup (ino_t inum, struct node **npp)
-   dn = malloc (sizeof (struct disknode));
-   if (! dn)
-     {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_mutex_unlock (&nodehash_lock);
-       return ENOMEM;
-     }
-   dn->dirents = 0;
-@@ -107,9 +117,10 @@ diskfs_cached_lookup (ino_t inum, struct node **npp)
-     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_mutex_unlock (&nodehash_lock);
- 
-   /* Get the contents of NP off disk.  */
-   err = read_node (np);
-@@ -140,14 +151,13 @@ ifind (ino_t inum)
- {
-   struct node *np;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_lock (&nodehash_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_mutex_unlock (&nodehash_lock);
-       return np;
-     }
-   assert (0);
-@@ -158,11 +168,6 @@ 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 +185,33 @@ diskfs_node_norefs (struct node *np)
- void
- diskfs_try_dropping_softrefs (struct node *np)
- {
-+  pthread_mutex_lock (&nodehash_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_mutex_unlock (&nodehash_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_mutex_unlock (&nodehash_lock);
-+
-   drop_pager_softrefs (np);
- }
- 
-@@ -556,12 +588,12 @@ 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_mutex_lock (&nodehash_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
-+     nodehash_lock, but we can't hold this while locking the
-      individual node locks).  */
-   num_nodes = nodehash_nr_items;
- 
-@@ -570,7 +602,7 @@ 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_mutex_unlock (&nodehash_lock);
-       ext2_debug ("unable to allocate temporary node table");
-       return ENOMEM;
-     }
-@@ -580,10 +612,10 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
-     for (node = nodehash[n]; node; node = node->dn->hnext)
-       {
- 	*p++ = node;
--	node->references++;
-+	diskfs_nref (node);
-       }
- 
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_unlock (&nodehash_lock);
- 
-   p = node_list;
-   while (num_nodes-- > 0)
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0013-fatfs-use-a-seperate-lock-to-protect-nodehash.patch b/debian/patches/0013-fatfs-use-a-seperate-lock-to-protect-nodehash.patch
deleted file mode 100644
index a7918b0c..00000000
--- a/debian/patches/0013-fatfs-use-a-seperate-lock-to-protect-nodehash.patch
+++ /dev/null
@@ -1,222 +0,0 @@
-From 664606b8d183455a6195ac954d78571af744362d 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 13/15] 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 (nodehash_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 | 81 +++++++++++++++++++++++++++++++++++++++++------------------
- 1 file changed, 57 insertions(+), 24 deletions(-)
-
-diff --git a/fatfs/inode.c b/fatfs/inode.c
-index ed6f3f0..8b3385b 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
-+   nodehash_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_mutex_t nodehash_lock = PTHREAD_MUTEX_INITIALIZER;
- 
- static error_t read_node (struct node *np, vm_address_t buf);
- 
-@@ -67,12 +77,12 @@ diskfs_cached_lookup (ino64_t inum, struct node **npp)
-   struct node *np;
-   struct disknode *dn;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_lock (&nodehash_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_mutex_unlock (&nodehash_lock);
-         pthread_mutex_lock (&np->lock);
-         *npp = np;
-         return 0;
-@@ -82,7 +92,7 @@ diskfs_cached_lookup (ino64_t inum, struct node **npp)
-   dn = malloc (sizeof (struct disknode));
-   if (! dn)
-     {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_mutex_unlock (&nodehash_lock);
-       return ENOMEM;
-     }
-   dn->pager = 0;
-@@ -107,10 +117,11 @@ diskfs_cached_lookup (ino64_t inum, struct node **npp)
-     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_mutex_unlock (&nodehash_lock);
-+
-   /* Get the contents of NP off disk.  */
-   err = read_node (np, 0);
- 
-@@ -133,12 +144,12 @@ 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_mutex_lock (&nodehash_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_mutex_unlock (&nodehash_lock);
-         pthread_mutex_lock (&np->lock);
-         *npp = np;
-         return 0;
-@@ -148,7 +159,7 @@ diskfs_cached_lookup_in_dirbuf (int inum, struct node **npp, vm_address_t buf)
-   dn = malloc (sizeof (struct disknode));
-   if (! dn)
-     {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_mutex_unlock (&nodehash_lock);
-       return ENOMEM;
-     }
-   dn->pager = 0;
-@@ -173,10 +184,11 @@ diskfs_cached_lookup_in_dirbuf (int inum, struct node **npp, vm_address_t buf)
-     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_mutex_unlock (&nodehash_lock);
-+
-   /* Get the contents of NP off disk.  */
-   err = read_node (np, buf);
- 
-@@ -196,14 +208,13 @@ ifind (ino_t inum)
- {
-   struct node *np;
- 
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_lock (&nodehash_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_mutex_unlock (&nodehash_lock);
-       return np;
-     }
-   assert (0);
-@@ -216,11 +227,6 @@ 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 +257,33 @@ diskfs_node_norefs (struct node *np)
- void
- diskfs_try_dropping_softrefs (struct node *np)
- {
-+  pthread_mutex_lock (&nodehash_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_mutex_unlock (&nodehash_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_mutex_unlock (&nodehash_lock);
-+
-   drop_pager_softrefs (np);
- }
- 
-@@ -554,12 +587,12 @@ 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_mutex_lock (&nodehash_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
-+     nodehash_lock, but we can't hold this while locking the
-      individual node locks).  */
- 
-   num_nodes = nodehash_nr_items;
-@@ -570,10 +603,10 @@ diskfs_node_iterate (error_t (*fun)(struct node *))
-     for (node = nodehash[n]; node; node = node->dn->hnext)
-       {
-         *p++ = node;
--        node->references++;
-+        diskfs_nref (node);
-       }
- 
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_unlock (&nodehash_lock);
- 
-   p = node_list;
-   while (num_nodes-- > 0)
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0014-isofs-use-a-seperate-lock-to-protect-node_cache.patch b/debian/patches/0014-isofs-use-a-seperate-lock-to-protect-node_cache.patch
deleted file mode 100644
index c6af3a4b..00000000
--- a/debian/patches/0014-isofs-use-a-seperate-lock-to-protect-node_cache.patch
+++ /dev/null
@@ -1,222 +0,0 @@
-From 57da36c3f7f68de55bd2c360b441879902dc14f8 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 14/15] 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 (node_cache_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 | 72 +++++++++++++++++++++++++++++++++++++++++++----------------
- 1 file changed, 53 insertions(+), 19 deletions(-)
-
-diff --git a/isofs/inode.c b/isofs/inode.c
-index cdc05ae..4f22086 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 node_cache_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_mutex_t node_cache_lock = PTHREAD_MUTEX_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. node_cache_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_mutex_unlock (&node_cache_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. node_cache_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_mutex_lock (&node_cache_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_mutex_unlock (&node_cache_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_mutex_unlock (&node_cache_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_mutex_unlock (&node_cache_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_mutex_unlock (&node_cache_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_mutex_lock (&node_cache_lock);
- 
-   /* First check the cache */
-   if (use_file_start_id (record, rr))
-@@ -325,7 +336,7 @@ load_inode (struct node **npp, struct dirrect *record,
- 
-   if (*npp)
-     {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_mutex_unlock (&node_cache_lock);
-       return 0;
-     }
- 
-@@ -333,7 +344,7 @@ load_inode (struct node **npp, struct dirrect *record,
-   dn = malloc (sizeof (struct disknode));
-   if (!dn)
-     {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_mutex_unlock (&node_cache_lock);
-       return ENOMEM;
-     }
-   dn->fileinfo = 0;
-@@ -344,14 +355,14 @@ load_inode (struct node **npp, struct dirrect *record,
-   if (!np)
-     {
-       free (dn);
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_mutex_unlock (&node_cache_lock);
-       return ENOMEM;
-     }
- 
-   pthread_mutex_lock (&np->lock);
- 
-   cache_inode (np, record, rr);
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_unlock (&node_cache_lock);
- 
-   err = read_disknode (np, record, rr);
-   *npp = np;
-@@ -505,9 +516,6 @@ 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 +529,32 @@ diskfs_node_norefs (struct node *np)
- void
- diskfs_try_dropping_softrefs (struct node *np)
- {
-+  pthread_mutex_lock (&node_cache_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_mutex_unlock (&node_cache_lock);
-+          return;
-+        }
-+
-+      node_cache[np->cache_id - 1].np = 0;
-+      np->cache_id = 0;
-+      diskfs_nrele_light (np);
-+    }
-+  pthread_mutex_unlock (&node_cache_lock);
-+
-   drop_pager_softrefs (np);
- }
- 
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/0015-tmpfs-use-a-seperate-lock-to-protect-all_nodes.patch b/debian/patches/0015-tmpfs-use-a-seperate-lock-to-protect-all_nodes.patch
deleted file mode 100644
index fafb113f..00000000
--- a/debian/patches/0015-tmpfs-use-a-seperate-lock-to-protect-all_nodes.patch
+++ /dev/null
@@ -1,263 +0,0 @@
-From 7d53b7e08efefe1d6d24bf3a80b3391a9502c6aa 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 15/15] 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 to the state related to
-memory consumption as this is updated during insertion and removal
-operations. 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/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.
-* tmpfs/tmpfs.c (diskfs_set_statfs): Use all_nodes_lock.
-* tmpfs/tmpfs.h (all_nodes_lock): New declaration.
-(adjust_used): Use all_nodes_lock.
----
- tmpfs/node.c  | 76 +++++++++++++++++++++++++++++++++++++++++++----------------
- tmpfs/tmpfs.c |  4 ++--
- tmpfs/tmpfs.h |  6 +++--
- 3 files changed, 62 insertions(+), 24 deletions(-)
-
-diff --git a/tmpfs/node.c b/tmpfs/node.c
-index acc029a..74971ec 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_mutex_t all_nodes_lock = PTHREAD_MUTEX_INITIALIZER;
- 
- error_t
- diskfs_alloc_node (struct node *dp, mode_t mode, struct node **npp)
-@@ -40,18 +50,18 @@ 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);
-+  pthread_mutex_lock (&all_nodes_lock);
-   if (round_page (tmpfs_space_used + sizeof *dn) / vm_page_size
-       > tmpfs_page_limit)
-     {
--      pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+      pthread_mutex_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);
-+  pthread_mutex_unlock (&all_nodes_lock);
- 
-   dn->type = IFTODT (mode & S_IFMT);
-   return diskfs_cached_lookup ((ino_t) (uintptr_t) dn, npp);
-@@ -75,15 +85,18 @@ diskfs_free_node (struct node *np, mode_t mode)
-       free (np->dn->u.lnk);
-       break;
-     }
-+
-+  pthread_mutex_lock (&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;
--  free (np->dn);
--  np->dn = 0;
--
-   --num_files;
-   tmpfs_space_used -= sizeof *np->dn;
-+  pthread_mutex_unlock (&all_nodes_lock);
-+
-+  free (np->dn);
-+  np->dn = 0;
- }
- 
- 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);
-@@ -167,11 +172,14 @@ diskfs_cached_lookup (ino_t inum, struct node **npp)
- 
-   assert (npp);
- 
-+  pthread_mutex_lock (&all_nodes_lock);
-+
-   if (dn->hprevp != 0)		/* There is already a node.  */
-     {
-       np = *dn->hprevp;
-       assert (np->dn == dn);
-       assert (*dn->hprevp == np);
-+      pthread_mutex_unlock (&all_nodes_lock);
- 
-       diskfs_nref (np);
-     }
-@@ -183,14 +191,14 @@ diskfs_cached_lookup (ino_t inum, struct node **npp)
-       np = diskfs_make_node (dn);
-       np->cache_id = (ino_t) (uintptr_t) dn;
- 
--      pthread_spin_lock (&diskfs_node_refcnt_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_mutex_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_mutex_lock (&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 (node);
-     }
- 
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_unlock (&all_nodes_lock);
- 
-   p = node_list;
-   while (num_nodes-- > 0)
-@@ -272,6 +280,34 @@ diskfs_node_iterate (error_t (*fun) (struct node *))
- void
- diskfs_try_dropping_softrefs (struct node *np)
- {
-+  pthread_mutex_lock (&all_nodes_lock);
-+  if (np->dn->hnext != NULL)
-+    {
-+      /* Check if someone reacquired a reference through the
-+         all_nodes.  */
-+      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_mutex_unlock (&all_nodes_lock);
-+          return;
-+        }
-+
-+      /* 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 = NULL;
-+      np->dn->hprevp = NULL;
-+      diskfs_nrele_light (np);
-+    }
-+  pthread_mutex_unlock (&all_nodes_lock);
- }
- 
- /* The user must define this funcction.  Node NP has some light
-diff --git a/tmpfs/tmpfs.c b/tmpfs/tmpfs.c
-index a45d343..024b818 100644
---- a/tmpfs/tmpfs.c
-+++ b/tmpfs/tmpfs.c
-@@ -67,10 +67,10 @@ 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);
-+  pthread_mutex_lock (&all_nodes_lock);
-   st->f_files = num_files;
-   pages = round_page (tmpfs_space_used) / vm_page_size;
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_unlock (&all_nodes_lock);
- 
-   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..187249e 100644
---- a/tmpfs/tmpfs.h
-+++ b/tmpfs/tmpfs.h
-@@ -24,6 +24,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
- #include <sys/types.h>
- #include <dirent.h>
- #include <stdint.h>
-+#include <pthread.h>
- 
- struct disknode
- {
-@@ -71,15 +72,16 @@ struct tmpfs_dirent
- 
- extern unsigned int num_files;
- extern off_t tmpfs_page_limit, tmpfs_space_used;
-+extern pthread_mutex_t all_nodes_lock;
- 
- extern mach_port_t default_pager;
- 
- static inline void
- adjust_used (off_t change)
- {
--  pthread_spin_lock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_lock (&all_nodes_lock);
-   tmpfs_space_used += change;
--  pthread_spin_unlock (&diskfs_node_refcnt_lock);
-+  pthread_mutex_unlock (&all_nodes_lock);
- }
- 
- #endif
--- 
-2.0.0.rc0
-
diff --git a/debian/patches/series b/debian/patches/series
index 5bce22f8..c08b0f99 100644
--- a/debian/patches/series
+++ b/debian/patches/series
@@ -40,18 +40,3 @@ xkb-compat.patch
 
 mach-defpager-protected-payload.patch
 
-0001-libihash-fix-type-of-max_load.patch
-0002-libihash-use-an-integer-hash-function-on-the-keys.patch
-0003-libihash-use-linear-probing-and-fast-modulo-operatio.patch
-0004-libihash-use-fast-binary-scaling-to-determine-the-lo.patch
-0005-include-add-lock-less-reference-counting-primitives.patch
-0006-libdiskfs-lock-less-reference-counting-for-peropen-o.patch
-0007-libtrivfs-lock-less-reference-counting-for-trivfs_pe.patch
-0008-libports-use-a-single-hash-table.patch
-0009-libports-lock-less-reference-counting-for-port_info-.patch
-0010-ext2fs-improve-enable-disable-_caching.patch
-0011-fatfs-improve-enable-disable-_caching.patch
-0012-ext2fs-use-a-seperate-lock-to-protect-nodehash.patch
-0013-fatfs-use-a-seperate-lock-to-protect-nodehash.patch
-0014-isofs-use-a-seperate-lock-to-protect-node_cache.patch
-0015-tmpfs-use-a-seperate-lock-to-protect-all_nodes.patch