---

yaml
---
r: 84094
b: refs/heads/master
c: a7f9b1f
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8f859016ea49cd8d7c743533bd1ab3db9a813ffa
+refs/heads/master: a7f9b1f24974da287771e2d70b30d9ca7bd66684

trunk/.gitignore

@@ -17,7 +17,6 @@
 *.i
 *.lst
 *.symtypes
-*.order
 
 #
 # Top-level generic files

trunk/CREDITS

@@ -508,8 +508,12 @@ D: REINER SCT cyberJack pinpad/e-com USB chipcard reader driver
 S: Germany
 
 N: Adrian Bunk
+E: bunk@stusta.de
 P: 1024D/4F12B400  B29C E71E FE19 6755 5C8A  84D4 99FC EA98 4F12 B400
 D: misc kernel hacking and testing
+S: Grasmeierstrasse 11
+S: 80805 Muenchen
+S: Germany
 
 N: Ray Burr
 E: ryb@nightmare.com
@@ -1120,9 +1124,6 @@ S: 1150 Ringwood Court
 S: San Jose, California 95131
 S: USA
 
-N: Adam Fritzler
-E: mid@zigamorph.net
-
 N: Fernando Fuganti
 E: fuganti@conectiva.com.br
 E: fuganti@netbank.com.br
@@ -1352,14 +1353,6 @@ S: Gen Stedmanstraat 212
 S: 5623 HZ Eindhoven
 S: The Netherlands
 
-N: Oliver Hartkopp
-E: oliver.hartkopp@volkswagen.de
-W: http://www.volkswagen.de
-D: Controller Area Network (network layer core)
-S: Brieffach 1776
-S: 38436 Wolfsburg
-S: Germany
-
 N: Andrew Haylett
 E: ajh@primag.co.uk
 D: Selection mechanism
@@ -3313,14 +3306,6 @@ S: Universit=E9 de Rennes I
 S: F-35042 Rennes Cedex
 S: France
 
-N: Urs Thuermann
-E: urs.thuermann@volkswagen.de
-W: http://www.volkswagen.de
-D: Controller Area Network (network layer core)
-S: Brieffach 1776
-S: 38436 Wolfsburg
-S: Germany
-
 N: Jon Tombs
 E: jon@gte.esi.us.es
 W: http://www.esi.us.es/~jon

trunk/Documentation/00-INDEX

@@ -154,7 +154,7 @@ firmware_class/
 	- request_firmware() hotplug interface info.
 floppy.txt
 	- notes and driver options for the floppy disk driver.
-frv/
+fujitsu/
 	- Fujitsu FR-V Linux documentation.
 gpio.txt
 	- overview of GPIO (General Purpose Input/Output) access conventions.
@@ -262,8 +262,6 @@ mtrr.txt
 	- how to use PPro Memory Type Range Registers to increase performance.
 mutex-design.txt
 	- info on the generic mutex subsystem.
-namespaces/
-	- directory with various information about namespaces
 nbd.txt
 	- info on a TCP implementation of a network block device.
 netlabel/
@@ -364,6 +362,8 @@ sharedsubtree.txt
 	- a description of shared subtrees for namespaces.
 smart-config.txt
 	- description of the Smart Config makefile feature.
+smp.txt
+	- a few notes on symmetric multi-processing.
 sony-laptop.txt
 	- Sony Notebook Control Driver (SNC) Readme.
 sonypi.txt

trunk/Documentation/ABI/testing/sysfs-bus-usb

@@ -52,36 +52,3 @@ Description:
 		facility is inherently dangerous, it is disabled by default
 		for all devices except hubs.  For more information, see
 		Documentation/usb/persist.txt.
-
-What:		/sys/bus/usb/device/.../power/connected_duration
-Date:		January 2008
-KernelVersion:	2.6.25
-Contact:	Sarah Sharp <sarah.a.sharp@intel.com>
-Description:
-		If CONFIG_PM and CONFIG_USB_SUSPEND are enabled, then this file
-		is present.  When read, it returns the total time (in msec)
-		that the USB device has been connected to the machine.  This
-		file is read-only.
-Users:
-		PowerTOP <power@bughost.org>
-		http://www.lesswatts.org/projects/powertop/
-
-What:		/sys/bus/usb/device/.../power/active_duration
-Date:		January 2008
-KernelVersion:	2.6.25
-Contact:	Sarah Sharp <sarah.a.sharp@intel.com>
-Description:
-		If CONFIG_PM and CONFIG_USB_SUSPEND are enabled, then this file
-		is present.  When read, it returns the total time (in msec)
-		that the USB device has been active, i.e. not in a suspended
-		state.  This file is read-only.
-
-		Tools can use this file and the connected_duration file to
-		compute the percentage of time that a device has been active.
-		For example,
-		echo $((100 * `cat active_duration` / `cat connected_duration`))
-		will give an integer percentage.  Note that this does not
-		account for counter wrap.
-Users:
-		PowerTOP <power@bughost.org>
-		http://www.lesswatts.org/projects/powertop/

trunk/Documentation/BUG-HUNTING

@@ -53,7 +53,7 @@ Finding it the old way
 
 [Sat Mar  2 10:32:33 PST 1996 KERNEL_BUG-HOWTO lm@sgi.com (Larry McVoy)]
 
-This is how to track down a bug if you know nothing about kernel hacking.
+This is how to track down a bug if you know nothing about kernel hacking.  
 It's a brute force approach but it works pretty well.
 
 You need:
@@ -66,12 +66,12 @@ You will then do:
 
         . Rebuild a revision that you believe works, install, and verify that.
         . Do a binary search over the kernels to figure out which one
-          introduced the bug.  I.e., suppose 1.3.28 didn't have the bug, but
+          introduced the bug.  I.e., suppose 1.3.28 didn't have the bug, but 
           you know that 1.3.69 does.  Pick a kernel in the middle and build
           that, like 1.3.50.  Build & test; if it works, pick the mid point
           between .50 and .69, else the mid point between .28 and .50.
         . You'll narrow it down to the kernel that introduced the bug.  You
-          can probably do better than this but it gets tricky.
+          can probably do better than this but it gets tricky.  
 
         . Narrow it down to a subdirectory
 
@@ -81,27 +81,27 @@ You will then do:
             directories:
 
                 Copy the non-working directory next to the working directory
-                as "dir.63".
+                as "dir.63".  
                 One directory at time, try moving the working directory to
-                "dir.62" and mv dir.63 dir"time, try
+                "dir.62" and mv dir.63 dir"time, try 
 
                         mv dir dir.62
                         mv dir.63 dir
                         find dir -name '*.[oa]' -print | xargs rm -f
 
                 And then rebuild and retest.  Assuming that all related
-                changes were contained in the sub directory, this should
-                isolate the change to a directory.
+                changes were contained in the sub directory, this should 
+                isolate the change to a directory.  
 
                 Problems: changes in header files may have occurred; I've
-                found in my case that they were self explanatory - you may
+                found in my case that they were self explanatory - you may 
                 or may not want to give up when that happens.
 
         . Narrow it down to a file
 
           - You can apply the same technique to each file in the directory,
-            hoping that the changes in that file are self contained.
-
+            hoping that the changes in that file are self contained.  
+            
         . Narrow it down to a routine
 
           - You can take the old file and the new file and manually create
@@ -130,7 +130,7 @@ You will then do:
             that makes the difference.
 
 Finally, you take all the info that you have, kernel revisions, bug
-description, the extent to which you have narrowed it down, and pass
+description, the extent to which you have narrowed it down, and pass 
 that off to whomever you believe is the maintainer of that section.
 A post to linux.dev.kernel isn't such a bad idea if you've done some
 work to narrow it down.
@@ -214,23 +214,6 @@ And recompile the kernel with CONFIG_DEBUG_INFO enabled:
   gdb vmlinux
   (gdb) p vt_ioctl
   (gdb) l *(0x<address of vt_ioctl> + 0xda8)
-or, as one command
-  (gdb) l *(vt_ioctl + 0xda8)
-
-If you have a call trace, such as :-
->Call Trace:
-> [<ffffffff8802c8e9>] :jbd:log_wait_commit+0xa3/0xf5
-> [<ffffffff810482d9>] autoremove_wake_function+0x0/0x2e
-> [<ffffffff8802770b>] :jbd:journal_stop+0x1be/0x1ee
-> ...
-this shows the problem in the :jbd: module. You can load that module in gdb
-and list the relevant code.
-  gdb fs/jbd/jbd.ko
-  (gdb) p log_wait_commit
-  (gdb) l *(0x<address> + 0xa3)
-or
-  (gdb) l *(log_wait_commit + 0xa3)
-
 
 Another very useful option of the Kernel Hacking section in menuconfig is
 Debug memory allocations. This will help you see whether data has been

trunk/Documentation/DocBook/Makefile

@@ -11,7 +11,7 @@ DOCBOOKS := wanbook.xml z8530book.xml mcabook.xml videobook.xml \
 	    procfs-guide.xml writing_usb_driver.xml \
 	    kernel-api.xml filesystems.xml lsm.xml usb.xml \
 	    gadget.xml libata.xml mtdnand.xml librs.xml rapidio.xml \
-	    genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml
+	    genericirq.xml s390-drivers.xml
 
 ###
 # The build process is as follows (targets):

trunk/Documentation/DocBook/kernel-api.tmpl

@@ -165,7 +165,6 @@ X!Ilib/string.c
 !Emm/vmalloc.c
 !Imm/page_alloc.c
 !Emm/mempool.c
-!Emm/dmapool.c
 !Emm/page-writeback.c
 !Emm/truncate.c
      </sect1>
@@ -372,6 +371,7 @@ X!Iinclude/linux/device.h
 !Edrivers/base/class.c
 !Edrivers/base/firmware_class.c
 !Edrivers/base/transport_class.c
+!Edrivers/base/dmapool.c
 <!-- Cannot be included, because
      attribute_container_add_class_device_adapter
  and attribute_container_classdev_to_container
@@ -419,13 +419,7 @@ X!Edrivers/pnp/system.c
 
   <chapter id="blkdev">
      <title>Block Devices</title>
-!Eblock/blk-core.c
-!Eblock/blk-map.c
-!Iblock/blk-sysfs.c
-!Eblock/blk-settings.c
-!Eblock/blk-exec.c
-!Eblock/blk-barrier.c
-!Eblock/blk-tag.c
+!Eblock/ll_rw_blk.c
   </chapter>
 
   <chapter id="chrdev">

trunk/Documentation/DocBook/kernel-locking.tmpl

@@ -717,15 +717,15 @@ used, and when it gets full, throws out the least used one.
     <para>
 For our first example, we assume that all operations are in user
 context (ie. from system calls), so we can sleep.  This means we can
-use a mutex to protect the cache and all the objects within
+use a semaphore to protect the cache and all the objects within
 it.  Here's the code:
     </para>
 
     <programlisting>
 #include &lt;linux/list.h&gt;
 #include &lt;linux/slab.h&gt;
 #include &lt;linux/string.h&gt;
-#include &lt;linux/mutex.h&gt;
+#include &lt;asm/semaphore.h&gt;
 #include &lt;asm/errno.h&gt;
 
 struct object
@@ -737,7 +737,7 @@ struct object
 };
 
 /* Protects the cache, cache_num, and the objects within it */
-static DEFINE_MUTEX(cache_lock);
+static DECLARE_MUTEX(cache_lock);
 static LIST_HEAD(cache);
 static unsigned int cache_num = 0;
 #define MAX_CACHE_SIZE 10
@@ -789,31 +789,31 @@ int cache_add(int id, const char *name)
         obj-&gt;id = id;
         obj-&gt;popularity = 0;
 
-        mutex_lock(&amp;cache_lock);
+        down(&amp;cache_lock);
         __cache_add(obj);
-        mutex_unlock(&amp;cache_lock);
+        up(&amp;cache_lock);
         return 0;
 }
 
 void cache_delete(int id)
 {
-        mutex_lock(&amp;cache_lock);
+        down(&amp;cache_lock);
         __cache_delete(__cache_find(id));
-        mutex_unlock(&amp;cache_lock);
+        up(&amp;cache_lock);
 }
 
 int cache_find(int id, char *name)
 {
         struct object *obj;
         int ret = -ENOENT;
 
-        mutex_lock(&amp;cache_lock);
+        down(&amp;cache_lock);
         obj = __cache_find(id);
         if (obj) {
                 ret = 0;
                 strcpy(name, obj-&gt;name);
         }
-        mutex_unlock(&amp;cache_lock);
+        up(&amp;cache_lock);
         return ret;
 }
 </programlisting>
@@ -853,7 +853,7 @@ The change is shown below, in standard patch format: the
          int popularity;
  };
 
--static DEFINE_MUTEX(cache_lock);
+-static DECLARE_MUTEX(cache_lock);
 +static spinlock_t cache_lock = SPIN_LOCK_UNLOCKED;
  static LIST_HEAD(cache);
  static unsigned int cache_num = 0;
@@ -870,22 +870,22 @@ The change is shown below, in standard patch format: the
          obj-&gt;id = id;
          obj-&gt;popularity = 0;
 
--        mutex_lock(&amp;cache_lock);
+-        down(&amp;cache_lock);
 +        spin_lock_irqsave(&amp;cache_lock, flags);
          __cache_add(obj);
--        mutex_unlock(&amp;cache_lock);
+-        up(&amp;cache_lock);
 +        spin_unlock_irqrestore(&amp;cache_lock, flags);
          return 0;
  }
 
  void cache_delete(int id)
  {
--        mutex_lock(&amp;cache_lock);
+-        down(&amp;cache_lock);
 +        unsigned long flags;
 +
 +        spin_lock_irqsave(&amp;cache_lock, flags);
          __cache_delete(__cache_find(id));
--        mutex_unlock(&amp;cache_lock);
+-        up(&amp;cache_lock);
 +        spin_unlock_irqrestore(&amp;cache_lock, flags);
  }
 
@@ -895,14 +895,14 @@ The change is shown below, in standard patch format: the
          int ret = -ENOENT;
 +        unsigned long flags;
 
--        mutex_lock(&amp;cache_lock);
+-        down(&amp;cache_lock);
 +        spin_lock_irqsave(&amp;cache_lock, flags);
          obj = __cache_find(id);
          if (obj) {
                  ret = 0;
                  strcpy(name, obj-&gt;name);
          }
--        mutex_unlock(&amp;cache_lock);
+-        up(&amp;cache_lock);
 +        spin_unlock_irqrestore(&amp;cache_lock, flags);
          return ret;
  }