Merge branch 'master' into next

Conflicts:
	fs/namei.c

Manually merged per:

diff --cc fs/namei.c
index 734f2b5,bbc15c2..0000000
--- a/fs/namei.c
+++ b/fs/namei.c
@@@ -860,9 -848,8 +849,10 @@@ static int __link_path_walk(const char
  		nd->flags |= LOOKUP_CONTINUE;
  		err = exec_permission_lite(inode);
  		if (err == -EAGAIN)
- 			err = vfs_permission(nd, MAY_EXEC);
+ 			err = inode_permission(nd->path.dentry->d_inode,
+ 					       MAY_EXEC);
 +		if (!err)
 +			err = ima_path_check(&nd->path, MAY_EXEC);
   		if (err)
  			break;

@@@ -1525,14 -1506,9 +1509,14 @@@ int may_open(struct path *path, int acc
  		flag &= ~O_TRUNC;
  	}

- 	error = vfs_permission(nd, acc_mode);
+ 	error = inode_permission(inode, acc_mode);
  	if (error)
  		return error;
 +
- 	error = ima_path_check(&nd->path,
++	error = ima_path_check(path,
 +			       acc_mode & (MAY_READ | MAY_WRITE | MAY_EXEC));
 +	if (error)
 +		return error;
  	/*
  	 * An append-only file must be opened in append mode for writing.
  	 */

Signed-off-by: James Morris <jmorris@namei.org>

3 files changed, 118 insertions, 83 deletions

diff --git a/Documentation/ABI/testing/sysfs-class-regulator b/Documentation/ABI/testing/sysfs-class-regulator
index 3731f6f29bc..873ef1fc156 100644
--- a/Documentation/ABI/testing/sysfs-class-regulator
+++ b/Documentation/ABI/testing/sysfs-class-regulator
@@ -3,8 +3,9 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
-		state. This holds the regulator output state.
+		Some regulator directories will contain a field called
+		state. This reports the regulator enable status, for
+		regulators which can report that value.
 
 		This will be one of the following strings:
 
@@ -18,7 +19,8 @@ Description:
 		'disabled' means the regulator output is OFF and is not
 		supplying power to the system..
 
-		'unknown' means software cannot determine the state.
+		'unknown' means software cannot determine the state, or
+		the reported state is invalid.
 
 		NOTE: this field can be used in conjunction with microvolts
 		and microamps to determine regulator output levels.
@@ -53,9 +55,10 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		microvolts. This holds the regulator output voltage setting
-		measured in microvolts (i.e. E-6 Volts).
+		measured in microvolts (i.e. E-6 Volts), for regulators
+		which can report that voltage.
 
 		NOTE: This value should not be used to determine the regulator
 		output voltage level as this value is the same regardless of
@@ -67,9 +70,10 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		microamps. This holds the regulator output current limit
-		setting measured in microamps (i.e. E-6 Amps).
+		setting measured in microamps (i.e. E-6 Amps), for regulators
+		which can report that current.
 
 		NOTE: This value should not be used to determine the regulator
 		output current level as this value is the same regardless of
@@ -81,8 +85,9 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
-		opmode. This holds the regulator operating mode setting.
+		Some regulator directories will contain a field called
+		opmode. This holds the current regulator operating mode,
+		for regulators which can report it.
 
 		The opmode value can be one of the following strings:
 
@@ -92,7 +97,7 @@ Description:
 		'standby'
 		'unknown'
 
-		The modes are described in include/linux/regulator/regulator.h
+		The modes are described in include/linux/regulator/consumer.h
 
 		NOTE: This value should not be used to determine the regulator
 		output operating mode as this value is the same regardless of
@@ -104,9 +109,10 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		min_microvolts. This holds the minimum safe working regulator
-		output voltage setting for this domain measured in microvolts.
+		output voltage setting for this domain measured in microvolts,
+		for regulators which support voltage constraints.
 
 		NOTE: this will return the string 'constraint not defined' if
 		the power domain has no min microvolts constraint defined by
@@ -118,9 +124,10 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		max_microvolts. This holds the maximum safe working regulator
-		output voltage setting for this domain measured in microvolts.
+		output voltage setting for this domain measured in microvolts,
+		for regulators which support voltage constraints.
 
 		NOTE: this will return the string 'constraint not defined' if
 		the power domain has no max microvolts constraint defined by
@@ -132,10 +139,10 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		min_microamps. This holds the minimum safe working regulator
 		output current limit setting for this domain measured in
-		microamps.
+		microamps, for regulators which support current constraints.
 
 		NOTE: this will return the string 'constraint not defined' if
 		the power domain has no min microamps constraint defined by
@@ -147,10 +154,10 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		max_microamps. This holds the maximum safe working regulator
 		output current limit setting for this domain measured in
-		microamps.
+		microamps, for regulators which support current constraints.
 
 		NOTE: this will return the string 'constraint not defined' if
 		the power domain has no max microamps constraint defined by
@@ -185,7 +192,7 @@ Date:		April 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		requested_microamps. This holds the total requested load
 		current in microamps for this regulator from all its consumer
 		devices.
@@ -204,125 +211,102 @@ Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_mem_microvolts. This holds the regulator output
 		voltage setting for this domain measured in microvolts when
-		the system is suspended to memory.
-
-		NOTE: this will return the string 'not defined' if
-		the power domain has no suspend to memory voltage defined by
-		platform code.
+		the system is suspended to memory, for voltage regulators
+		implementing suspend voltage configuration constraints.
 
 What:		/sys/class/regulator/.../suspend_disk_microvolts
 Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_disk_microvolts. This holds the regulator output
 		voltage setting for this domain measured in microvolts when
-		the system is suspended to disk.
-
-		NOTE: this will return the string 'not defined' if
-		the power domain has no suspend to disk voltage defined by
-		platform code.
+		the system is suspended to disk, for voltage regulators
+		implementing suspend voltage configuration constraints.
 
 What:		/sys/class/regulator/.../suspend_standby_microvolts
 Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_standby_microvolts. This holds the regulator output
 		voltage setting for this domain measured in microvolts when
-		the system is suspended to standby.
-
-		NOTE: this will return the string 'not defined' if
-		the power domain has no suspend to standby voltage defined by
-		platform code.
+		the system is suspended to standby, for voltage regulators
+		implementing suspend voltage configuration constraints.
 
 What:		/sys/class/regulator/.../suspend_mem_mode
 Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_mem_mode. This holds the regulator operating mode
 		setting for this domain when the system is suspended to
-		memory.
-
-		NOTE: this will return the string 'not defined' if
-		the power domain has no suspend to memory mode defined by
-		platform code.
+		memory, for regulators implementing suspend mode
+		configuration constraints.
 
 What:		/sys/class/regulator/.../suspend_disk_mode
 Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_disk_mode. This holds the regulator operating mode
-		setting for this domain when the system is suspended to disk.
-
-		NOTE: this will return the string 'not defined' if
-		the power domain has no suspend to disk mode defined by
-		platform code.
+		setting for this domain when the system is suspended to disk,
+		for regulators implementing suspend mode configuration
+		constraints.
 
 What:		/sys/class/regulator/.../suspend_standby_mode
 Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_standby_mode. This holds the regulator operating mode
 		setting for this domain when the system is suspended to
-		standby.
-
-		NOTE: this will return the string 'not defined' if
-		the power domain has no suspend to standby mode defined by
-		platform code.
+		standby, for regulators implementing suspend mode
+		configuration constraints.
 
 What:		/sys/class/regulator/.../suspend_mem_state
 Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_mem_state. This holds the regulator operating state
-		when suspended to memory.
-
-		This will be one of the following strings:
+		when suspended to memory, for regulators implementing suspend
+		configuration constraints.
 
-		'enabled'
-		'disabled'
-		'not defined'
+		This will be one of the same strings reported by
+		the "state" attribute.
 
 What:		/sys/class/regulator/.../suspend_disk_state
 Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_disk_state. This holds the regulator operating state
-		when suspended to disk.
-
-		This will be one of the following strings:
+		when suspended to disk, for regulators implementing
+		suspend configuration constraints.
 
-		'enabled'
-		'disabled'
-		'not defined'
+		This will be one of the same strings reported by
+		the "state" attribute.
 
 What:		/sys/class/regulator/.../suspend_standby_state
 Date:		May 2008
 KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
-		Each regulator directory will contain a field called
+		Some regulator directories will contain a field called
 		suspend_standby_state. This holds the regulator operating
-		state when suspended to standby.
-
-		This will be one of the following strings:
+		state when suspended to standby, for regulators implementing
+		suspend configuration constraints.
 
-		'enabled'
-		'disabled'
-		'not defined'
+		This will be one of the same strings reported by
+		the "state" attribute.
diff --git a/Documentation/ABI/testing/sysfs-class-uwb_rc b/Documentation/ABI/testing/sysfs-class-uwb_rc
index a0d18dbeb7a..6a5fd072849 100644
--- a/Documentation/ABI/testing/sysfs-class-uwb_rc
+++ b/Documentation/ABI/testing/sysfs-class-uwb_rc
@@ -32,14 +32,16 @@ Contact:        linux-usb@vger.kernel.org
 Description:
                 Write:
 
-                <channel> [<bpst offset>]
+                <channel>
 
-                to start beaconing on a specific channel, or stop
-                beaconing if <channel> is -1.  Valid channels depends
-                on the radio controller's supported band groups.
+                to force a specific channel to be used when beaconing,
+                or, if <channel> is -1, to prohibit beaconing.  If
+                <channel> is 0, then the default channel selection
+                algorithm will be used.  Valid channels depends on the
+                radio controller's supported band groups.
 
-                <bpst offset> may be used to try and join a specific
-                beacon group if more than one was found during a scan.
+                Reading returns the currently active channel, or -1 if
+                the radio controller is not beaconing.
 
 What:           /sys/class/uwb_rc/uwbN/scan
 Date:           July 2008
diff --git a/Documentation/ABI/testing/sysfs-devices-memory b/Documentation/ABI/testing/sysfs-devices-memory
index 7a16fe1e227..9fe91c02ee4 100644
--- a/Documentation/ABI/testing/sysfs-devices-memory
+++ b/Documentation/ABI/testing/sysfs-devices-memory
@@ -6,7 +6,6 @@ Description:
 		internal state of the kernel memory blocks. Files could be
 		added or removed dynamically to represent hot-add/remove
 		operations.
-
 Users:		hotplug memory add/remove tools
 		https://w3.opensource.ibm.com/projects/powerpc-utils/
 
@@ -19,6 +18,56 @@ Description:
 		This is useful for a user-level agent to determine
 		identify removable sections of the memory before attempting
 		potentially expensive hot-remove memory operation
+Users:		hotplug memory remove tools
+		https://w3.opensource.ibm.com/projects/powerpc-utils/
+
+What:		/sys/devices/system/memory/memoryX/phys_device
+Date:		September 2008
+Contact:	Badari Pulavarty <pbadari@us.ibm.com>
+Description:
+		The file /sys/devices/system/memory/memoryX/phys_device
+		is read-only and is designed to show the name of physical
+		memory device.  Implementation is currently incomplete.
 
+What:		/sys/devices/system/memory/memoryX/phys_index
+Date:		September 2008
+Contact:	Badari Pulavarty <pbadari@us.ibm.com>
+Description:
+		The file /sys/devices/system/memory/memoryX/phys_index
+		is read-only and contains the section ID in hexadecimal
+		which is equivalent to decimal X contained in the
+		memory section directory name.
+
+What:		/sys/devices/system/memory/memoryX/state
+Date:		September 2008
+Contact:	Badari Pulavarty <pbadari@us.ibm.com>
+Description:
+		The file /sys/devices/system/memory/memoryX/state
+		is read-write.  When read, it's contents show the
+		online/offline state of the memory section.  When written,
+		root can toggle the the online/offline state of a removable
+		memory section (see removable file description above)
+		using the following commands.
+		# echo online > /sys/devices/system/memory/memoryX/state
+		# echo offline > /sys/devices/system/memory/memoryX/state
+
+		For example, if /sys/devices/system/memory/memory22/removable
+		contains a value of 1 and
+		/sys/devices/system/memory/memory22/state contains the
+		string "online" the following command can be executed by
+		by root to offline that section.
+		# echo offline > /sys/devices/system/memory/memory22/state
 Users:		hotplug memory remove tools
 		https://w3.opensource.ibm.com/projects/powerpc-utils/
+
+What:		/sys/devices/system/node/nodeX/memoryY
+Date:		September 2008
+Contact:	Gary Hade <garyhade@us.ibm.com>
+Description:
+		When CONFIG_NUMA is enabled
+		/sys/devices/system/node/nodeX/memoryY is a symbolic link that
+		points to the corresponding /sys/devices/system/memory/memoryY
+		memory section directory.  For example, the following symbolic
+		link is created for memory section 9 on node0.
+		/sys/devices/system/node/node0/memory9 -> ../../memory/memory9
+