add patch series

1 files changed, 188 insertions, 0 deletions

diff --git a/debian/patches/random-fixes0010-libtrivfs-optimize-the-object-lookup-code.patch b/debian/patches/random-fixes0010-libtrivfs-optimize-the-object-lookup-code.patch
new file mode 100644
index 00000000..f19746f6
--- /dev/null
+++ b/debian/patches/random-fixes0010-libtrivfs-optimize-the-object-lookup-code.patch
@@ -0,0 +1,188 @@
+From 9fe7adc2907afdd2039a67d27328ba82a884561e Mon Sep 17 00:00:00 2001
+From: Justus Winter <4winter@informatik.uni-hamburg.de>
+Date: Sun, 27 Sep 2015 18:55:39 +0200
+Subject: [PATCH hurd 10/11] libtrivfs: optimize the object lookup code
+
+* libtrivfs/mig-decls.h: Remove the specialized cases, they really
+blow up these functions that are supposed to be inlined.  Also, look
+into the dynamically allocated vectors first, because this is the
+preferred way of using libtrivfs since 1997.
+---
+ libtrivfs/mig-decls.h | 136 +++++++++++++++++++-------------------------------
+ 1 file changed, 52 insertions(+), 84 deletions(-)
+
+diff --git a/libtrivfs/mig-decls.h b/libtrivfs/mig-decls.h
+index 13a9eb7..1909199 100644
+--- a/libtrivfs/mig-decls.h
++++ b/libtrivfs/mig-decls.h
+@@ -37,57 +37,41 @@ extern size_t trivfs_num_dynamic_port_buckets;
+ static inline struct trivfs_protid * __attribute__ ((unused))
+ trivfs_begin_using_protid (mach_port_t port)
+ {
+-  if (trivfs_protid_nportclasses + trivfs_num_dynamic_protid_port_classes > 1)
++  struct port_info *pi = ports_lookup_port (0, port, 0);
++
++  if (pi)
+     {
+-      struct port_info *pi = ports_lookup_port (0, port, 0);
+-      int i;
+-
+-      if (pi)
+-	{
+-	  for (i = 0; i < trivfs_protid_nportclasses; i++)
+-	    if (pi->class == trivfs_protid_portclasses[i])
+-	      return (struct trivfs_protid *) pi;
+-	  for (i = 0; i < trivfs_num_dynamic_protid_port_classes; i++)
+-	    if (pi->class == trivfs_dynamic_protid_port_classes[i])
+-	      return (struct trivfs_protid *) pi;
+-	  ports_port_deref (pi);
+-	}
+-
+-      return 0;
++      size_t i;
++      for (i = 0; i < trivfs_num_dynamic_protid_port_classes; i++)
++	if (pi->class == trivfs_dynamic_protid_port_classes[i])
++	  return (struct trivfs_protid *) pi;
++      for (i = 0; i < trivfs_protid_nportclasses; i++)
++	if (pi->class == trivfs_protid_portclasses[i])
++	  return (struct trivfs_protid *) pi;
++      ports_port_deref (pi);
+     }
+-  else if (trivfs_protid_nportclasses == 1)
+-    return ports_lookup_port (0, port, trivfs_protid_portclasses[0]);
+-  else
+-    return ports_lookup_port (0, port, trivfs_dynamic_protid_port_classes[0]);
++
++  return NULL;
+ }
+ 
+ static inline struct trivfs_protid * __attribute__ ((unused))
+ trivfs_begin_using_protid_payload (unsigned long payload)
+ {
+-  if (trivfs_protid_nportclasses + trivfs_num_dynamic_protid_port_classes > 1)
++  struct port_info *pi = ports_lookup_payload (NULL, payload, NULL);
++
++  if (pi)
+     {
+-      struct port_info *pi = ports_lookup_payload (NULL, payload, NULL);
+-      int i;
+-
+-      if (pi)
+-	{
+-	  for (i = 0; i < trivfs_protid_nportclasses; i++)
+-	    if (pi->class == trivfs_protid_portclasses[i])
+-	      return (struct trivfs_protid *) pi;
+-	  for (i = 0; i < trivfs_num_dynamic_protid_port_classes; i++)
+-	    if (pi->class == trivfs_dynamic_protid_port_classes[i])
+-	      return (struct trivfs_protid *) pi;
+-	  ports_port_deref (pi);
+-	}
+-
+-      return NULL;
++      size_t i;
++      for (i = 0; i < trivfs_num_dynamic_protid_port_classes; i++)
++	if (pi->class == trivfs_dynamic_protid_port_classes[i])
++	  return (struct trivfs_protid *) pi;
++      for (i = 0; i < trivfs_protid_nportclasses; i++)
++	if (pi->class == trivfs_protid_portclasses[i])
++	  return (struct trivfs_protid *) pi;
++      ports_port_deref (pi);
+     }
+-  else if (trivfs_protid_nportclasses == 1)
+-    return ports_lookup_payload (NULL, payload,
+-				 trivfs_protid_portclasses[0]);
+-  else
+-    return ports_lookup_payload (NULL, payload,
+-				 trivfs_dynamic_protid_port_classes[0]);
++
++  return NULL;
+ }
+ 
+ static inline void __attribute__ ((unused))
+@@ -100,57 +84,41 @@ trivfs_end_using_protid (struct trivfs_protid *cred)
+ static inline struct trivfs_control * __attribute__ ((unused))
+ trivfs_begin_using_control (mach_port_t port)
+ {
+-  if (trivfs_cntl_nportclasses + trivfs_num_dynamic_control_port_classes > 1)
++  struct port_info *pi = ports_lookup_port (0, port, 0);
++
++  if (pi)
+     {
+-      struct port_info *pi = ports_lookup_port (0, port, 0);
+-      int i;
+-
+-      if (pi)
+-	{
+-	  for (i = 0; i < trivfs_cntl_nportclasses; i++)
+-	    if (pi->class == trivfs_cntl_portclasses[i])
+-	      return (struct trivfs_control *) pi;
+-	  for (i = 0; i < trivfs_num_dynamic_control_port_classes; i++)
+-	    if (pi->class == trivfs_dynamic_control_port_classes[i])
+-	      return (struct trivfs_control *) pi;
+-	  ports_port_deref (pi);
+-	}
+-
+-      return 0;
++      size_t i;
++      for (i = 0; i < trivfs_num_dynamic_control_port_classes; i++)
++	if (pi->class == trivfs_dynamic_control_port_classes[i])
++	  return (struct trivfs_control *) pi;
++      for (i = 0; i < trivfs_cntl_nportclasses; i++)
++	if (pi->class == trivfs_cntl_portclasses[i])
++	  return (struct trivfs_control *) pi;
++      ports_port_deref (pi);
+     }
+-  else if (trivfs_cntl_nportclasses == 1)
+-    return ports_lookup_port (0, port, trivfs_cntl_portclasses[0]);
+-  else
+-    return ports_lookup_port (0, port, trivfs_dynamic_control_port_classes[0]);
++
++  return NULL;
+ }
+ 
+ static inline struct trivfs_control * __attribute__ ((unused))
+ trivfs_begin_using_control_payload (unsigned long payload)
+ {
+-  if (trivfs_cntl_nportclasses + trivfs_num_dynamic_control_port_classes > 1)
++  struct port_info *pi = ports_lookup_payload (NULL, payload, NULL);
++
++  if (pi)
+     {
+-      struct port_info *pi = ports_lookup_payload (NULL, payload, NULL);
+-      int i;
+-
+-      if (pi)
+-	{
+-	  for (i = 0; i < trivfs_cntl_nportclasses; i++)
+-	    if (pi->class == trivfs_cntl_portclasses[i])
+-	      return (struct trivfs_control *) pi;
+-	  for (i = 0; i < trivfs_num_dynamic_control_port_classes; i++)
+-	    if (pi->class == trivfs_dynamic_control_port_classes[i])
+-	      return (struct trivfs_control *) pi;
+-	  ports_port_deref (pi);
+-	}
+-
+-      return NULL;
++      size_t i;
++      for (i = 0; i < trivfs_num_dynamic_control_port_classes; i++)
++	if (pi->class == trivfs_dynamic_control_port_classes[i])
++	  return (struct trivfs_control *) pi;
++      for (i = 0; i < trivfs_cntl_nportclasses; i++)
++	if (pi->class == trivfs_cntl_portclasses[i])
++	  return (struct trivfs_control *) pi;
++      ports_port_deref (pi);
+     }
+-  else if (trivfs_cntl_nportclasses == 1)
+-    return ports_lookup_payload (NULL, payload,
+-				 trivfs_cntl_portclasses[0]);
+-  else
+-    return ports_lookup_payload (NULL, payload,
+-				 trivfs_dynamic_control_port_classes[0]);
++
++  return NULL;
+ }
+ 
+ static inline void __attribute__ ((unused))
+-- 
+2.1.4
+