Merge remote-tracking branch 'master' into queue

Merge reason: development work has dependency on kvm patches merged
upstream.

Conflicts:
	arch/powerpc/include/asm/Kbuild
	arch/powerpc/include/asm/kvm_para.h

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

.gitignore

@@ -84,3 +84,11 @@ GTAGS
 *.orig
 *~
 \#*#
+
+#
+# Leavings from module signing
+#
+extra_certificates
+signing_key.priv
+signing_key.x509
+x509.genkey

Documentation/00-INDEX

@@ -210,6 +210,8 @@ local_ops.txt
 	- semantics and behavior of local atomic operations.
 lockdep-design.txt
 	- documentation on the runtime locking correctness validator.
+lockup-watchdogs.txt
+	- info on soft and hard lockup detectors (aka nmi_watchdog).
 logo.gif
 	- full colour GIF image of Linux logo (penguin - Tux).
 logo.txt
@@ -240,8 +242,6 @@ netlabel/
 	- directory with information on the NetLabel subsystem.
 networking/
 	- directory with info on various aspects of networking with Linux.
-nmi_watchdog.txt
-	- info on NMI watchdog for SMP systems.
 nommu-mmap.txt
 	- documentation about no-mmu memory mapping support.
 numastat.txt
@@ -270,8 +270,6 @@ preempt-locking.txt
 	- info on locking under a preemptive kernel.
 printk-formats.txt
 	- how to get printk format specifiers right
-prio_tree.txt
-	- info on radix-priority-search-tree use for indexing vmas.
 ramoops.txt
 	- documentation of the ramoops oops/panic logging module.
 rbtree.txt

Documentation/ABI/testing/sysfs-block

@@ -206,3 +206,17 @@ 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>/queue/write_same_max_bytes
+Date:		January 2012
+Contact:	Martin K. Petersen <martin.petersen@oracle.com>
+Description:
+		Some devices support a write same operation in which a
+		single data block can be written to a range of several
+		contiguous blocks on storage. This can be used to wipe
+		areas on disk or to initialize drives in a RAID
+		configuration. write_same_max_bytes indicates how many
+		bytes can be written in a single write same command. If
+		write_same_max_bytes is 0, write same is not supported
+		by the device.
+

Documentation/ABI/testing/sysfs-bus-fcoe

@@ -9,19 +9,19 @@ Attributes:
 			  this value will change the dev_loss_tmo for all
 			  FCFs discovered by this controller.
 
-	lesb_link_fail:   Link Error Status Block (LESB) link failure count.
+	lesb/link_fail:   Link Error Status Block (LESB) link failure count.
 
-	lesb_vlink_fail:  Link Error Status Block (LESB) virtual link
+	lesb/vlink_fail:  Link Error Status Block (LESB) virtual link
 			  failure count.
 
-	lesb_miss_fka:    Link Error Status Block (LESB) missed FCoE
+	lesb/miss_fka:    Link Error Status Block (LESB) missed FCoE
 			  Initialization Protocol (FIP) Keep-Alives (FKA).
 
-	lesb_symb_err:    Link Error Status Block (LESB) symbolic error count.
+	lesb/symb_err:    Link Error Status Block (LESB) symbolic error count.
 
-	lesb_err_block:   Link Error Status Block (LESB) block error count.
+	lesb/err_block:   Link Error Status Block (LESB) block error count.
 
-	lesb_fcs_error:   Link Error Status Block (LESB) Fibre Channel
+	lesb/fcs_error:   Link Error Status Block (LESB) Fibre Channel
 			  Serivces error count.
 
 Notes: ctlr_X (global increment starting at 0)

Documentation/ABI/testing/sysfs-bus-rbd

@@ -25,6 +25,10 @@ client_id
 
 	The ceph unique client id that was assigned for this specific session.
 
+features
+
+	A hexadecimal encoding of the feature bits for this image.
+
 major
 
 	The block device major number.
@@ -33,6 +37,11 @@ name
 
 	The name of the rbd image.
 
+image_id
+
+	The unique id for the rbd image.  (For rbd image format 1
+	this is empty.)
+
 pool
 
 	The name of the storage pool where this rbd image resides.
@@ -57,12 +66,6 @@ current_snap
 
 	The current snapshot for which the device is mapped.
 
-create_snap
-
-	Create a snapshot:
-
-	 $ echo <snap-name> > /sys/bus/rbd/devices/<dev-id>/snap_create
-
 snap_*
 
 	A directory per each snapshot
@@ -79,4 +82,7 @@ snap_size
 
 	The size of the image when this snapshot was taken.
 
+snap_features
+
+	A hexadecimal encoding of the feature bits for this snapshot.
 

Documentation/ABI/testing/sysfs-devices-firmware_node

@@ -0,0 +1,17 @@
+What:		/sys/devices/.../firmware_node/
+Date:		September 2012
+Contact:	<>
+Description:
+		The /sys/devices/.../firmware_node directory contains attributes
+		allowing the user space to check and modify some firmware
+		related properties of given device.
+
+What:		/sys/devices/.../firmware_node/description
+Date:		September 2012
+Contact:	Lance Ortiz <lance.ortiz@hp.com>
+Description:
+		The /sys/devices/.../firmware/description attribute contains a string
+		that describes the device as provided by the _STR method in the ACPI
+		namespace.  This attribute is read-only.  If the device does not have
+		an _STR method associated with it in the ACPI namespace, this
+		attribute is not present.

Documentation/ABI/testing/sysfs-fs-ext4

@@ -96,3 +96,16 @@ Contact:	"Theodore Ts'o" <tytso@mit.edu>
 Description:
 		The maximum number of megabytes the writeback code will
 		try to write out before move on to another inode.
+
+What:		/sys/fs/ext4/<disk>/extent_max_zeroout_kb
+Date:		August 2012
+Contact:	"Theodore Ts'o" <tytso@mit.edu>
+Description:
+		The maximum number of kilobytes which will be zeroed
+		out in preference to creating a new uninitialized
+		extent when manipulating an inode's extent tree.  Note
+		that using a larger value will increase the
+		variability of time necessary to complete a random
+		write operation (since a 4k random write might turn
+		into a much larger write due to the zeroout
+		operation).

Documentation/CodingStyle

@@ -454,6 +454,16 @@ The preferred style for long (multi-line) comments is:
 	 * with beginning and ending almost-blank lines.
 	 */
 
+For files in net/ and drivers/net/ the preferred style for long (multi-line)
+comments is a little different.
+
+	/* The preferred comment style for files in net/ and drivers/net
+	 * looks like this.
+	 *
+	 * It is nearly the same as the generally preferred comment style,
+	 * but there is no initial almost-blank line.
+	 */
+
 It's also important to comment data, whether they are basic types or derived
 types.  To this end, use just one data declaration per line (no commas for
 multiple data declarations).  This leaves you room for a small comment on each

Documentation/DocBook/media/Makefile

@@ -56,15 +56,15 @@ FUNCS = \
 	write \
 
 IOCTLS = \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/videodev2.h) \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/audio.h) \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/ca.h) \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/dmx.h) \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/frontend.h) \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([A-Z][^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/net.h) \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/video.h) \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/media.h) \
-	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/v4l2-subdev.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/videodev2.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/audio.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/ca.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/dmx.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/frontend.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([A-Z][^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/net.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/dvb/video.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/media.h) \
+	$(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \
 	VIDIOC_SUBDEV_G_FRAME_INTERVAL \
 	VIDIOC_SUBDEV_S_FRAME_INTERVAL \
 	VIDIOC_SUBDEV_ENUM_MBUS_CODE \
@@ -74,32 +74,32 @@ IOCTLS = \
 	VIDIOC_SUBDEV_S_SELECTION \
 
 TYPES = \
-	$(shell perl -ne 'print "$$1 " if /^typedef\s+[^\s]+\s+([^\s]+)\;/' $(srctree)/include/linux/videodev2.h) \
-	$(shell perl -ne 'print "$$1 " if /^}\s+([a-z0-9_]+_t)/' $(srctree)/include/linux/dvb/frontend.h)
+	$(shell perl -ne 'print "$$1 " if /^typedef\s+[^\s]+\s+([^\s]+)\;/' $(srctree)/include/uapi/linux/videodev2.h) \
+	$(shell perl -ne 'print "$$1 " if /^}\s+([a-z0-9_]+_t)/' $(srctree)/include/uapi/linux/dvb/frontend.h)
 
 ENUMS = \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/videodev2.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/audio.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/ca.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/dmx.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/frontend.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/net.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/video.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/media.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-mediabus.h) \
-	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-subdev.h)
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/videodev2.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/audio.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/ca.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/dmx.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/frontend.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/net.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/dvb/video.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/media.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-mediabus.h) \
+	$(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-subdev.h)
 
 STRUCTS = \
-	$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/videodev2.h) \
-	$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s\{]+)\s*/)' $(srctree)/include/linux/dvb/audio.h) \
-	$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/ca.h) \
-	$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/dmx.h) \
-	$(shell perl -ne 'print "$$1 " if (!/dtv\_cmds\_h/ && /^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/frontend.h) \
-	$(shell perl -ne 'print "$$1 " if (/^struct\s+([A-Z][^\s]+)\s+/)' $(srctree)/include/linux/dvb/net.h) \
-	$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/video.h) \
-	$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/media.h) \
-	$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-subdev.h) \
-	$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-mediabus.h)
+	$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/videodev2.h) \
+	$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s\{]+)\s*/)' $(srctree)/include/uapi/linux/dvb/audio.h) \
+	$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/ca.h) \
+	$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/dmx.h) \
+	$(shell perl -ne 'print "$$1 " if (!/dtv\_cmds\_h/ && /^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/frontend.h) \
+	$(shell perl -ne 'print "$$1 " if (/^struct\s+([A-Z][^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/net.h) \
+	$(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/uapi/linux/dvb/video.h) \
+	$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/media.h) \
+	$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-subdev.h) \
+	$(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/uapi/linux/v4l2-mediabus.h)
 
 ERRORS = \
 	E2BIG \
@@ -205,7 +205,7 @@ $(MEDIA_OBJ_DIR)/v4l2.xml: $(OBJIMGFILES)
 	@(ln -sf $(MEDIA_SRC_DIR)/v4l/*xml $(MEDIA_OBJ_DIR)/)
 	@(ln -sf $(MEDIA_SRC_DIR)/dvb/*xml $(MEDIA_OBJ_DIR)/)
 
-$(MEDIA_OBJ_DIR)/videodev2.h.xml: $(srctree)/include/linux/videodev2.h $(MEDIA_OBJ_DIR)/v4l2.xml
+$(MEDIA_OBJ_DIR)/videodev2.h.xml: $(srctree)/include/uapi/linux/videodev2.h $(MEDIA_OBJ_DIR)/v4l2.xml
 	@$($(quiet)gen_xml)
 	@(					\
 	echo "<programlisting>") > $@
@@ -216,7 +216,7 @@ $(MEDIA_OBJ_DIR)/videodev2.h.xml: $(srctree)/include/linux/videodev2.h $(MEDIA_O
 	@(					\
 	echo "</programlisting>") >> $@
 
-$(MEDIA_OBJ_DIR)/audio.h.xml: $(srctree)/include/linux/dvb/audio.h $(MEDIA_OBJ_DIR)/v4l2.xml
+$(MEDIA_OBJ_DIR)/audio.h.xml: $(srctree)/include/uapi/linux/dvb/audio.h $(MEDIA_OBJ_DIR)/v4l2.xml
 	@$($(quiet)gen_xml)
 	@(					\
 	echo "<programlisting>") > $@
@@ -227,7 +227,7 @@ $(MEDIA_OBJ_DIR)/audio.h.xml: $(srctree)/include/linux/dvb/audio.h $(MEDIA_OBJ_D
 	@(					\
 	echo "</programlisting>") >> $@
 
-$(MEDIA_OBJ_DIR)/ca.h.xml: $(srctree)/include/linux/dvb/ca.h $(MEDIA_OBJ_DIR)/v4l2.xml
+$(MEDIA_OBJ_DIR)/ca.h.xml: $(srctree)/include/uapi/linux/dvb/ca.h $(MEDIA_OBJ_DIR)/v4l2.xml
 	@$($(quiet)gen_xml)
 	@(					\
 	echo "<programlisting>") > $@
@@ -238,7 +238,7 @@ $(MEDIA_OBJ_DIR)/ca.h.xml: $(srctree)/include/linux/dvb/ca.h $(MEDIA_OBJ_DIR)/v4
 	@(					\
 	echo "</programlisting>") >> $@
 
-$(MEDIA_OBJ_DIR)/dmx.h.xml: $(srctree)/include/linux/dvb/dmx.h $(MEDIA_OBJ_DIR)/v4l2.xml
+$(MEDIA_OBJ_DIR)/dmx.h.xml: $(srctree)/include/uapi/linux/dvb/dmx.h $(MEDIA_OBJ_DIR)/v4l2.xml
 	@$($(quiet)gen_xml)
 	@(					\
 	echo "<programlisting>") > $@
@@ -249,7 +249,7 @@ $(MEDIA_OBJ_DIR)/dmx.h.xml: $(srctree)/include/linux/dvb/dmx.h $(MEDIA_OBJ_DIR)/
 	@(					\
 	echo "</programlisting>") >> $@
 
-$(MEDIA_OBJ_DIR)/frontend.h.xml: $(srctree)/include/linux/dvb/frontend.h $(MEDIA_OBJ_DIR)/v4l2.xml
+$(MEDIA_OBJ_DIR)/frontend.h.xml: $(srctree)/include/uapi/linux/dvb/frontend.h $(MEDIA_OBJ_DIR)/v4l2.xml
 	@$($(quiet)gen_xml)
 	@(					\
 	echo "<programlisting>") > $@
@@ -260,7 +260,7 @@ $(MEDIA_OBJ_DIR)/frontend.h.xml: $(srctree)/include/linux/dvb/frontend.h $(MEDIA
 	@(					\
 	echo "</programlisting>") >> $@
 
-$(MEDIA_OBJ_DIR)/net.h.xml: $(srctree)/include/linux/dvb/net.h $(MEDIA_OBJ_DIR)/v4l2.xml
+$(MEDIA_OBJ_DIR)/net.h.xml: $(srctree)/include/uapi/linux/dvb/net.h $(MEDIA_OBJ_DIR)/v4l2.xml
 	@$($(quiet)gen_xml)
 	@(					\
 	echo "<programlisting>") > $@
@@ -271,7 +271,7 @@ $(MEDIA_OBJ_DIR)/net.h.xml: $(srctree)/include/linux/dvb/net.h $(MEDIA_OBJ_DIR)/
 	@(					\
 	echo "</programlisting>") >> $@
 
-$(MEDIA_OBJ_DIR)/video.h.xml: $(srctree)/include/linux/dvb/video.h $(MEDIA_OBJ_DIR)/v4l2.xml
+$(MEDIA_OBJ_DIR)/video.h.xml: $(srctree)/include/uapi/linux/dvb/video.h $(MEDIA_OBJ_DIR)/v4l2.xml
 	@$($(quiet)gen_xml)
 	@(					\
 	echo "<programlisting>") > $@
@@ -300,7 +300,7 @@ $(MEDIA_OBJ_DIR)/media-entities.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml
 	@(								\
 	for ident in $(IOCTLS) ; do					\
 	  entity=`echo $$ident | tr _ -` ;				\
-	  id=`grep "<refname>$$ident" $(MEDIA_OBJ_DIR)/vidioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \
+	  id=`grep "<refname>$$ident" $(MEDIA_OBJ_DIR)/vidioc-*.xml $(MEDIA_OBJ_DIR)/media-ioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \
 	  echo "<!ENTITY $$entity \"<link"				\
 	    "linkend='$$id'><constant>$$ident</constant></link>\">"	\
 	  >>$@ ;							\