---

yaml
---
r: 283621
b: refs/heads/master
c: d55c9a9
h: refs/heads/master
i:
  283619: c7acf53
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 04cf399640b7acfa9abe2eb7900cd934db8af697
+refs/heads/master: d55c9a97f80a7ad64f7c7eab5fb447a8d9a1532a

trunk/.mailmap

@@ -68,7 +68,6 @@ Juha Yrjola <juha.yrjola@solidboot.com>
 Kay Sievers <kay.sievers@vrfy.org>
 Kenneth W Chen <kenneth.w.chen@intel.com>
 Koushik <raghavendra.koushik@neterion.com>
-Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 Leonid I Ananiev <leonid.i.ananiev@intel.com>
 Linas Vepstas <linas@austin.ibm.com>
 Mark Brown <broonie@sirena.org.uk>
@@ -112,4 +111,3 @@ Uwe Kleine-König <ukl@pengutronix.de>
 Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
 Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
 Takashi YOSHII <takashi.yoshii.zj@renesas.com>
-Yusuke Goda <goda.yusuke@renesas.com>

trunk/CREDITS

@@ -688,13 +688,10 @@ S: Oxfordshire, UK.
 
 N: Kees Cook
 E: kees@outflux.net
-E: kees@ubuntu.com
-E: keescook@chromium.org
-W: http://outflux.net/blog/
-P: 4096R/DC6DC026 A5C3 F68F 229D D60F 723E  6E13 8972 F4DF DC6D C026
-D: Various security things, bug fixes, and documentation.
+W: http://outflux.net/
+P: 1024D/17063E6D 9FA3 C49C 23C9 D1BC 2E30  1975 1FFF 4BA9 1706 3E6D
+D: Minor updates to SCSI types, added /proc/pid/maps protection
 S: (ask for current address)
-S: Portland, Oregon
 S: USA
 
 N: Robin Cornelius

trunk/Documentation/ABI/testing/sysfs-block

@@ -206,3 +206,16 @@ Description:
 		when a discarded area is read the discard_zeroes_data
 		parameter will be set to one. Otherwise it will be 0 and
 		the result of reading a discarded area is undefined.
+What:		/sys/block/<disk>/alias
+Date:		Aug 2011
+Contact:	Nao Nishijima <nao.nishijima.xt@hitachi.com>
+Description:
+		A raw device name of a disk does not always point a same disk
+		each boot-up time. Therefore, users have to use persistent
+		device names, which udev creates when the kernel finds a disk,
+		instead of raw device name. However, kernel doesn't show those
+		persistent names on its messages (e.g. dmesg).
+		This file can store an alias of the disk and it would be
+		appeared in kernel messages if it is set. A disk can have an
+		alias which length is up to 255bytes. Users can use alphabets,
+		numbers, "-" and "_" in alias name. This file is writeonce.

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

@@ -57,6 +57,13 @@ create_snap
 
 	 $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_create
 
+rollback_snap
+
+	Rolls back data to the specified snapshot. This goes over the entire
+	list of rados blocks and sends a rollback command to each.
+
+	 $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_rollback
+
 snap_*
 
 	A directory per each snapshot

trunk/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff

@@ -1,7 +1,7 @@
 What:		/sys/module/hid_logitech/drivers/hid:logitech/<dev>/range.
 Date:		July 2011
 KernelVersion:	3.2
-Contact:	Michal Malý <madcatxster@gmail.com>
+Contact:	Michal Mal� <madcatxster@gmail.com>
 Description:	Display minimum, maximum and current range of the steering
 		wheel. Writing a value within min and max boundaries sets the
 		range of the wheel.

trunk/Documentation/DocBook/debugobjects.tmpl

@@ -96,7 +96,6 @@
 	<listitem><para>debug_object_deactivate</para></listitem>
 	<listitem><para>debug_object_destroy</para></listitem>
 	<listitem><para>debug_object_free</para></listitem>
-	<listitem><para>debug_object_assert_init</para></listitem>
       </itemizedlist>
       Each of these functions takes the address of the real object and
       a pointer to the object type specific debug description
@@ -274,26 +273,6 @@
 	debug checks.
       </para>
     </sect1>
-
-    <sect1 id="debug_object_assert_init">
-      <title>debug_object_assert_init</title>
-      <para>
-	This function is called to assert that an object has been
-	initialized.
-      </para>
-      <para>
-	When the real object is not tracked by debugobjects, it calls
-	fixup_assert_init of the object type description structure
-	provided by the caller, with the hardcoded object state
-	ODEBUG_NOT_AVAILABLE. The fixup function can correct the problem
-	by calling debug_object_init and other specific initializing
-	functions.
-      </para>
-      <para>
-	When the real object is already tracked by debugobjects it is
-	ignored.
-      </para>
-    </sect1>
   </chapter>
   <chapter id="fixupfunctions">
     <title>Fixup functions</title>
@@ -402,35 +381,6 @@
 	statistics.
       </para>
     </sect1>
-    <sect1 id="fixup_assert_init">
-      <title>fixup_assert_init</title>
-      <para>
-	This function is called from the debug code whenever a problem
-	in debug_object_assert_init is detected.
-      </para>
-      <para>
-	Called from debug_object_assert_init() with a hardcoded state
-	ODEBUG_STATE_NOTAVAILABLE when the object is not found in the
-	debug bucket.
-      </para>
-      <para>
-	The function returns 1 when the fixup was successful,
-	otherwise 0. The return value is used to update the
-	statistics.
-      </para>
-      <para>
-	Note, this function should make sure debug_object_init() is
-	called before returning.
-      </para>
-      <para>
-	The handling of statically initialized objects is a special
-	case. The fixup function should check if this is a legitimate
-	case of a statically initialized object or not. In this case only
-	debug_object_init() should be called to make the object known to
-	the tracker. Then the function should return 0 because this is not
-	a real fixup.
-      </para>
-    </sect1>
   </chapter>
   <chapter id="bugs">
     <title>Known Bugs And Assumptions</title>

trunk/Documentation/DocBook/uio-howto.tmpl

@@ -520,11 +520,6 @@ Here's a description of the fields of <varname>struct uio_mem</varname>:
 </para>
 
 <itemizedlist>
-<listitem><para>
-<varname>const char *name</varname>: Optional. Set this to help identify
-the memory region, it will show up in the corresponding sysfs node.
-</para></listitem>
-
 <listitem><para>
 <varname>int memtype</varname>: Required if the mapping is used. Set this to
 <varname>UIO_MEM_PHYS</varname> if you you have physical memory on your
@@ -558,7 +553,7 @@ instead to remember such an address.
 </itemizedlist>
 
 <para>
-Please do not touch the <varname>map</varname> element of
+Please do not touch the <varname>kobj</varname> element of
 <varname>struct uio_mem</varname>! It is used by the UIO framework
 to set up sysfs files for this mapping. Simply leave it alone.
 </para>

trunk/Documentation/HOWTO

@@ -275,8 +275,8 @@ versions.
 If no 2.6.x.y kernel is available, then the highest numbered 2.6.x
 kernel is the current stable kernel.
 
-2.6.x.y are maintained by the "stable" team <stable@vger.kernel.org>, and
-are released as needs dictate.  The normal release period is approximately
+2.6.x.y are maintained by the "stable" team <stable@kernel.org>, and are
+released as needs dictate.  The normal release period is approximately 
 two weeks, but it can be longer if there are no pressing problems.  A
 security-related problem, instead, can cause a release to happen almost
 instantly.

trunk/Documentation/RCU/checklist.txt

@@ -328,12 +328,6 @@ over a rather long period of time, but improvements are always welcome!
 	RCU rather than SRCU, because RCU is almost always faster and
 	easier to use than is SRCU.
 
-	If you need to enter your read-side critical section in a
-	hardirq or exception handler, and then exit that same read-side
-	critical section in the task that was interrupted, then you need
-	to srcu_read_lock_raw() and srcu_read_unlock_raw(), which avoid
-	the lockdep checking that would otherwise this practice illegal.
-
 	Also unlike other forms of RCU, explicit initialization
 	and cleanup is required via init_srcu_struct() and
 	cleanup_srcu_struct().	These are passed a "struct srcu_struct"

trunk/Documentation/RCU/rcu.txt

@@ -38,11 +38,11 @@ o	How can the updater tell when a grace period has completed
 
 	Preemptible variants of RCU (CONFIG_TREE_PREEMPT_RCU) get the
 	same effect, but require that the readers manipulate CPU-local
-	counters.  These counters allow limited types of blocking within
-	RCU read-side critical sections.  SRCU also uses CPU-local
-	counters, and permits general blocking within RCU read-side
-	critical sections.  These variants of RCU detect grace periods
-	by sampling these counters.
+	counters.  These counters allow limited types of blocking
+	within RCU read-side critical sections.  SRCU also uses
+	CPU-local counters, and permits general blocking within
+	RCU read-side critical sections.  These two variants of
+	RCU detect grace periods by sampling these counters.
 
 o	If I am running on a uniprocessor kernel, which can only do one
 	thing at a time, why should I wait for a grace period?

trunk/Documentation/RCU/stallwarn.txt

@@ -101,11 +101,6 @@ o	A CPU-bound real-time task in a CONFIG_PREEMPT_RT kernel that
 	CONFIG_TREE_PREEMPT_RCU case, you might see stall-warning
 	messages.
 
-o	A hardware or software issue shuts off the scheduler-clock
-	interrupt on a CPU that is not in dyntick-idle mode.  This
-	problem really has happened, and seems to be most likely to
-	result in RCU CPU stall warnings for CONFIG_NO_HZ=n kernels.
-
 o	A bug in the RCU implementation.
 
 o	A hardware failure.  This is quite unlikely, but has occurred
@@ -114,11 +109,12 @@ o	A hardware failure.  This is quite unlikely, but has occurred
 	This resulted in a series of RCU CPU stall warnings, eventually
 	leading the realization that the CPU had failed.
 
-The RCU, RCU-sched, and RCU-bh implementations have CPU stall warning.
-SRCU does not have its own CPU stall warnings, but its calls to
-synchronize_sched() will result in RCU-sched detecting RCU-sched-related
-CPU stalls.  Please note that RCU only detects CPU stalls when there is
-a grace period in progress.  No grace period, no CPU stall warnings.
+The RCU, RCU-sched, and RCU-bh implementations have CPU stall
+warning.  SRCU does not have its own CPU stall warnings, but its
+calls to synchronize_sched() will result in RCU-sched detecting
+RCU-sched-related CPU stalls.  Please note that RCU only detects
+CPU stalls when there is a grace period in progress.  No grace period,
+no CPU stall warnings.
 
 To diagnose the cause of the stall, inspect the stack traces.
 The offending function will usually be near the top of the stack.

trunk/Documentation/RCU/torture.txt

@@ -61,24 +61,11 @@ nreaders	This is the number of RCU reading threads supported.
 		To properly exercise RCU implementations with preemptible
 		read-side critical sections.
 
-onoff_interval
-		The number of seconds between each attempt to execute a
-		randomly selected CPU-hotplug operation.  Defaults to
-		zero, which disables CPU hotplugging.  In HOTPLUG_CPU=n
-		kernels, rcutorture will silently refuse to do any
-		CPU-hotplug operations regardless of what value is
-		specified for onoff_interval.
-
 shuffle_interval
 		The number of seconds to keep the test threads affinitied
 		to a particular subset of the CPUs, defaults to 3 seconds.
 		Used in conjunction with test_no_idle_hz.
 
-shutdown_secs	The number of seconds to run the test before terminating
-		the test and powering off the system.  The default is
-		zero, which disables test termination and system shutdown.
-		This capability is useful for automated testing.
-
 stat_interval	The number of seconds between output of torture
 		statistics (via printk()).  Regardless of the interval,
 		statistics are printed when the module is unloaded.

trunk/Documentation/RCU/trace.txt

@@ -105,10 +105,14 @@ o	"dt" is the current value of the dyntick counter that is incremented
 	or one greater than the interrupt-nesting depth otherwise.
 	The number after the second "/" is the NMI nesting depth.
 
+	This field is displayed only for CONFIG_NO_HZ kernels.
+
 o	"df" is the number of times that some other CPU has forced a
 	quiescent state on behalf of this CPU due to this CPU being in
 	dynticks-idle state.
 
+	This field is displayed only for CONFIG_NO_HZ kernels.
+
 o	"of" is the number of times that some other CPU has forced a
 	quiescent state on behalf of this CPU due to this CPU being
 	offline.  In a perfect world, this might never happen, but it

trunk/Documentation/RCU/whatisRCU.txt

@@ -4,7 +4,6 @@ to start learning about RCU:
 1.	What is RCU, Fundamentally?  http://lwn.net/Articles/262464/
 2.	What is RCU? Part 2: Usage   http://lwn.net/Articles/263130/
 3.	RCU part 3: the RCU API      http://lwn.net/Articles/264090/
-4.	The RCU API, 2010 Edition    http://lwn.net/Articles/418853/
 
 
 What is RCU?
@@ -835,8 +834,6 @@ SRCU:	Critical sections	Grace period		Barrier
 
 	srcu_read_lock		synchronize_srcu	N/A
 	srcu_read_unlock	synchronize_srcu_expedited
-	srcu_read_lock_raw
-	srcu_read_unlock_raw
 	srcu_dereference
 
 SRCU:	Initialization/cleanup
@@ -858,33 +855,27 @@ list can be helpful:
 
 a.	Will readers need to block?  If so, you need SRCU.
 
-b.	Is it necessary to start a read-side critical section in a
-	hardirq handler or exception handler, and then to complete
-	this read-side critical section in the task that was
-	interrupted?  If so, you need SRCU's srcu_read_lock_raw() and
-	srcu_read_unlock_raw() primitives.
-
-c.	What about the -rt patchset?  If readers would need to block
+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.
 
-d.	Do you need to treat NMI handlers, hardirq handlers,
+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.
 
-e.	Do you need RCU grace periods to complete even in the face
+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.
 
-f.	Is your workload too update-intensive for normal use of
+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!
 
-g.	Otherwise, use RCU.
+f.	Otherwise, use RCU.
 
 Of course, this all assumes that you have determined that RCU is in fact
 the right tool for your job.

trunk/Documentation/arm/memory.txt

@@ -51,14 +51,15 @@ ffc00000	ffefffff	DMA memory mapping region.  Memory returned
 ff000000	ffbfffff	Reserved for future expansion of DMA
 				mapping region.
 
+VMALLOC_END	feffffff	Free for platform use, recommended.
+				VMALLOC_END must be aligned to a 2MB
+				boundary.
+
 VMALLOC_START	VMALLOC_END-1	vmalloc() / ioremap() space.
 				Memory returned by vmalloc/ioremap will
 				be dynamically placed in this region.
-				Machine specific static mappings are also
-				located here through iotable_init().
-				VMALLOC_START is based upon the value
-				of the high_memory variable, and VMALLOC_END
-				is equal to 0xff000000.
+				VMALLOC_START may be based upon the value
+				of the high_memory variable.
 
 PAGE_OFFSET	high_memory-1	Kernel direct-mapped RAM region.
 				This maps the platforms RAM, and typically