---

yaml
---
r: 235179
b: refs/heads/master
c: c06b3a0
h: refs/heads/master
i:
  235177: 6c14224
  235175: 63fd30e
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1fd06bb1571e2618ae392e2484925bf0dadd7857
+refs/heads/master: c06b3a068223cb885d85ac4f6c31e870ca2b5aac

trunk/Documentation/00-INDEX

@@ -328,6 +328,8 @@ sysrq.txt
 	- info on the magic SysRq key.
 telephony/
 	- directory with info on telephony (e.g. voice over IP) support.
+time_interpolators.txt
+	- info on time interpolators.
 uml/
 	- directory with information about User Mode Linux.
 unicode.txt
@@ -344,6 +346,8 @@ vm/
 	- directory with info on the Linux vm code.
 volatile-considered-harmful.txt
 	- Why the "volatile" type class should not be used
+voyager.txt
+	- guide to running Linux on the Voyager architecture.
 w1/
 	- directory with documents regarding the 1-wire (w1) subsystem.
 watchdog/

trunk/Documentation/ABI/testing/sysfs-devices-power

@@ -29,8 +29,9 @@ Description:
 		"disabled" to it.
 
 		For the devices that are not capable of generating system wakeup
-		events this file is not present.  In that case the device cannot
-		be enabled to wake up the system from sleep states.
+		events this file contains "\n".  In that cases the user space
+		cannot modify the contents of this file and the device cannot be
+		enabled to wake up the system.
 
 What:		/sys/devices/.../power/control
 Date:		January 2009
@@ -84,7 +85,7 @@ Description:
 		The /sys/devices/.../wakeup_count attribute contains the number
 		of signaled wakeup events associated with the device.  This
 		attribute is read-only.  If the device is not enabled to wake up
-		the system from sleep states, this attribute is not present.
+		the system from sleep states, this attribute is empty.
 
 What:		/sys/devices/.../power/wakeup_active_count
 Date:		September 2010
@@ -94,7 +95,7 @@ Description:
 		number of times the processing of wakeup events associated with
 		the device was completed (at the kernel level).  This attribute
 		is read-only.  If the device is not enabled to wake up the
-		system from sleep states, this attribute is not present.
+		system from sleep states, this attribute is empty.
 
 What:		/sys/devices/.../power/wakeup_hit_count
 Date:		September 2010
@@ -104,8 +105,7 @@ Description:
 		number of times the processing of a wakeup event associated with
 		the device might prevent the system from entering a sleep state.
 		This attribute is read-only.  If the device is not enabled to
-		wake up the system from sleep states, this attribute is not
-		present.
+		wake up the system from sleep states, this attribute is empty.
 
 What:		/sys/devices/.../power/wakeup_active
 Date:		September 2010
@@ -115,7 +115,7 @@ Description:
 		or 0, depending on whether or not a wakeup event associated with
 		the device is being processed (1).  This attribute is read-only.
 		If the device is not enabled to wake up the system from sleep
-		states, this attribute is not present.
+		states, this attribute is empty.
 
 What:		/sys/devices/.../power/wakeup_total_time_ms
 Date:		September 2010
@@ -125,7 +125,7 @@ Description:
 		the total time of processing wakeup events associated with the
 		device, in milliseconds.  This attribute is read-only.  If the
 		device is not enabled to wake up the system from sleep states,
-		this attribute is not present.
+		this attribute is empty.
 
 What:		/sys/devices/.../power/wakeup_max_time_ms
 Date:		September 2010
@@ -135,7 +135,7 @@ Description:
 		the maximum time of processing a single wakeup event associated
 		with the device, in milliseconds.  This attribute is read-only.
 		If the device is not enabled to wake up the system from sleep
-		states, this attribute is not present.
+		states, this attribute is empty.
 
 What:		/sys/devices/.../power/wakeup_last_time_ms
 Date:		September 2010
@@ -146,7 +146,7 @@ Description:
 		signaling the last wakeup event associated with the device, in
 		milliseconds.  This attribute is read-only.  If the device is
 		not enabled to wake up the system from sleep states, this
-		attribute is not present.
+		attribute is empty.
 
 What:		/sys/devices/.../power/autosuspend_delay_ms
 Date:		September 2010

trunk/Documentation/CodingStyle

@@ -659,7 +659,7 @@ There are a number of driver model diagnostic macros in <linux/device.h>
 which you should use to make sure messages are matched to the right device
 and driver, and are tagged with the right level:  dev_err(), dev_warn(),
 dev_info(), and so forth.  For messages that aren't associated with a
-particular device, <linux/printk.h> defines pr_debug() and pr_info().
+particular device, <linux/kernel.h> defines pr_debug() and pr_info().
 
 Coming up with good debugging messages can be quite a challenge; and once
 you have them, they can be a huge help for remote troubleshooting.  Such
@@ -819,3 +819,6 @@ language C, URL: http://www.open-std.org/JTC1/SC22/WG14/
 Kernel CodingStyle, by greg@kroah.com at OLS 2002:
 http://www.kroah.com/linux/talks/ols_2002_kernel_codingstyle_talk/html/
 
+--
+Last updated on 2007-July-13.
+

trunk/Documentation/RCU/whatisRCU.txt

@@ -849,37 +849,6 @@ All:  lockdep-checked RCU-protected pointer access
 See the comment headers in the source code (or the docbook generated
 from them) for more information.
 
-However, given that there are no fewer than four families of RCU APIs
-in the Linux kernel, how do you choose which one to use?  The following
-list can be helpful:
-
-a.	Will readers need to block?  If so, you need SRCU.
-
-b.	What about the -rt patchset?  If readers would need to block
-	in an non-rt kernel, you need SRCU.  If readers would block
-	in a -rt kernel, but not in a non-rt kernel, SRCU is not
-	necessary.
-
-c.	Do you need to treat NMI handlers, hardirq handlers,
-	and code segments with preemption disabled (whether
-	via preempt_disable(), local_irq_save(), local_bh_disable(),
-	or some other mechanism) as if they were explicit RCU readers?
-	If so, you need RCU-sched.
-
-d.	Do you need RCU grace periods to complete even in the face
-	of softirq monopolization of one or more of the CPUs?  For
-	example, is your code subject to network-based denial-of-service
-	attacks?  If so, you need RCU-bh.
-
-e.	Is your workload too update-intensive for normal use of
-	RCU, but inappropriate for other synchronization mechanisms?
-	If so, consider SLAB_DESTROY_BY_RCU.  But please be careful!
-
-f.	Otherwise, use RCU.
-
-Of course, this all assumes that you have determined that RCU is in fact
-the right tool for your job.
-
 
 8.  ANSWERS TO QUICK QUIZZES
 

trunk/Documentation/cgroups/cgroups.txt

@@ -349,10 +349,6 @@ To mount a cgroup hierarchy with all available subsystems, type:
 The "xxx" is not interpreted by the cgroup code, but will appear in
 /proc/mounts so may be any useful identifying string that you like.
 
-Note: Some subsystems do not work without some user input first.  For instance,
-if cpusets are enabled the user will have to populate the cpus and mems files
-for each new cgroup created before that group can be used.
-
 To mount a cgroup hierarchy with just the cpuset and memory
 subsystems, type:
 # mount -t cgroup -o cpuset,memory hier1 /dev/cgroup
@@ -430,14 +426,6 @@ You can attach the current shell task by echoing 0:
 
 # echo 0 > tasks
 
-Note: Since every task is always a member of exactly one cgroup in each
-mounted hierarchy, to remove a task from its current cgroup you must
-move it into a new cgroup (possibly the root cgroup) by writing to the
-new cgroup's tasks file.
-
-Note: If the ns cgroup is active, moving a process to another cgroup can
-fail.
-
 2.3 Mounting hierarchies by name
 --------------------------------