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Commit 9efe21cb authored by Ingo Molnar's avatar Ingo Molnar
Browse files

Merge branch 'linus' into irq/threaded

Conflicts:
	include/linux/irq.h
	kernel/irq/handle.c
parents de18836e 0221c81b
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+17 −2
Original line number Original line Diff line number Diff line
@@ -495,6 +495,11 @@ S: Kopmansg 2
S: 411 13  Goteborg
S: 411 13  Goteborg
S: Sweden
S: Sweden


N: Paul Bristow
E: paul@paulbristow.net
W: http://paulbristow.net/linux/idefloppy.html
D: Maintainer of IDE/ATAPI floppy driver

N: Dominik Brodowski
N: Dominik Brodowski
E: linux@brodo.de
E: linux@brodo.de
W: http://www.brodo.de/
W: http://www.brodo.de/
@@ -1407,8 +1412,8 @@ P: 1024D/77D4FC9B F5C5 1C20 1DFC DEC3 3107 54A4 2332 ADFC 77D4 FC9B
D: National Language Support
D: National Language Support
D: Linux Internationalization Project
D: Linux Internationalization Project
D: German Localization for Linux and GNU software
D: German Localization for Linux and GNU software
S: Kriemhildring 12a
S: Auf der Fittel 18
S: 65795 Hattersheim am Main
S: 53347 Alfter
S: Germany
S: Germany


N: Christoph Hellwig
N: Christoph Hellwig
@@ -2642,6 +2647,10 @@ S: C/ Mieses 20, 9-B
S: Valladolid 47009
S: Valladolid 47009
S: Spain
S: Spain


N: Gadi Oxman
E: gadio@netvision.net.il
D: Original author and maintainer of IDE/ATAPI floppy/tape drivers

N: Greg Page
N: Greg Page
E: gpage@sovereign.org
E: gpage@sovereign.org
D: IPX development and support
D: IPX development and support
@@ -3571,6 +3580,12 @@ N: Dirk Verworner
D: Co-author of German book ``Linux-Kernel-Programmierung''
D: Co-author of German book ``Linux-Kernel-Programmierung''
D: Co-founder of Berlin Linux User Group
D: Co-founder of Berlin Linux User Group


N: Riku Voipio
E: riku.voipio@iki.fi
D: Author of PCA9532 LED and Fintek f75375s hwmon driver
D: Some random ARM board patches
S: Finland

N: Patrick Volkerding
N: Patrick Volkerding
E: volkerdi@ftp.cdrom.com
E: volkerdi@ftp.cdrom.com
D: Produced the Slackware distribution, updated the SVGAlib
D: Produced the Slackware distribution, updated the SVGAlib
+2 −2
Original line number Original line Diff line number Diff line
@@ -86,6 +86,8 @@ cachetlb.txt
	- describes the cache/TLB flushing interfaces Linux uses.
	- describes the cache/TLB flushing interfaces Linux uses.
cdrom/
cdrom/
	- directory with information on the CD-ROM drivers that Linux has.
	- directory with information on the CD-ROM drivers that Linux has.
cgroups/
	- cgroups features, including cpusets and memory controller.
connector/
connector/
	- docs on the netlink based userspace<->kernel space communication mod.
	- docs on the netlink based userspace<->kernel space communication mod.
console/
console/
@@ -98,8 +100,6 @@ cpu-load.txt
	- document describing how CPU load statistics are collected.
	- document describing how CPU load statistics are collected.
cpuidle/
cpuidle/
	- info on CPU_IDLE, CPU idle state management subsystem.
	- info on CPU_IDLE, CPU idle state management subsystem.
cpusets.txt
	- documents the cpusets feature; assign CPUs and Mem to a set of tasks.
cputopology.txt
cputopology.txt
	- documentation on how CPU topology info is exported via sysfs.
	- documentation on how CPU topology info is exported via sysfs.
cris/
cris/
+71 −0
Original line number Original line Diff line number Diff line
What:		/sys/kernel/debug/kmemtrace/
Date:		July 2008
Contact:	Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Description:

In kmemtrace-enabled kernels, the following files are created:

/sys/kernel/debug/kmemtrace/
	cpu<n>		(0400)	Per-CPU tracing data, see below. (binary)
	total_overruns	(0400)	Total number of bytes which were dropped from
				cpu<n> files because of full buffer condition,
				non-binary. (text)
	abi_version	(0400)	Kernel's kmemtrace ABI version. (text)

Each per-CPU file should be read according to the relay interface. That is,
the reader should set affinity to that specific CPU and, as currently done by
the userspace application (though there are other methods), use poll() with
an infinite timeout before every read(). Otherwise, erroneous data may be
read. The binary data has the following _core_ format:

	Event ID	(1 byte)	Unsigned integer, one of:
		0 - represents an allocation (KMEMTRACE_EVENT_ALLOC)
		1 - represents a freeing of previously allocated memory
		    (KMEMTRACE_EVENT_FREE)
	Type ID		(1 byte)	Unsigned integer, one of:
		0 - this is a kmalloc() / kfree()
		1 - this is a kmem_cache_alloc() / kmem_cache_free()
		2 - this is a __get_free_pages() et al.
	Event size	(2 bytes)	Unsigned integer representing the
					size of this event. Used to extend
					kmemtrace. Discard the bytes you
					don't know about.
	Sequence number	(4 bytes)	Signed integer used to reorder data
					logged on SMP machines. Wraparound
					must be taken into account, although
					it is unlikely.
	Caller address	(8 bytes)	Return address to the caller.
	Pointer to mem	(8 bytes)	Pointer to target memory area. Can be
					NULL, but not all such calls might be
					recorded.

In case of KMEMTRACE_EVENT_ALLOC events, the next fields follow:

	Requested bytes	(8 bytes)	Total number of requested bytes,
					unsigned, must not be zero.
	Allocated bytes (8 bytes)	Total number of actually allocated
					bytes, unsigned, must not be lower
					than requested bytes.
	Requested flags	(4 bytes)	GFP flags supplied by the caller.
	Target CPU	(4 bytes)	Signed integer, valid for event id 1.
					If equal to -1, target CPU is the same
					as origin CPU, but the reverse might
					not be true.

The data is made available in the same endianness the machine has.

Other event ids and type ids may be defined and added. Other fields may be
added by increasing event size, but see below for details.
Every modification to the ABI, including new id definitions, are followed
by bumping the ABI version by one.

Adding new data to the packet (features) is done at the end of the mandatory
data:
	Feature size	(2 byte)
	Feature ID	(1 byte)
	Feature data	(Feature size - 3 bytes)


Users:
	kmemtrace-user - git://repo.or.cz/kmemtrace-user.git
+61 −0
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What:		security/ima/policy
Date:		May 2008
Contact:	Mimi Zohar <zohar@us.ibm.com>
Description:
		The Trusted Computing Group(TCG) runtime Integrity
		Measurement Architecture(IMA) maintains a list of hash
		values of executables and other sensitive system files
		loaded into the run-time of this system.  At runtime,
		the policy can be constrained based on LSM specific data.
		Policies are loaded into the securityfs file ima/policy
		by opening the file, writing the rules one at a time and
		then closing the file.  The new policy takes effect after
		the file ima/policy is closed.

		rule format: action [condition ...]

		action: measure | dont_measure
		condition:= base | lsm
			base:	[[func=] [mask=] [fsmagic=] [uid=]]
			lsm:	[[subj_user=] [subj_role=] [subj_type=]
				 [obj_user=] [obj_role=] [obj_type=]]

		base: 	func:= [BPRM_CHECK][FILE_MMAP][INODE_PERMISSION]
			mask:= [MAY_READ] [MAY_WRITE] [MAY_APPEND] [MAY_EXEC]
			fsmagic:= hex value
			uid:= decimal value
		lsm:  	are LSM specific

		default policy:
			# PROC_SUPER_MAGIC
			dont_measure fsmagic=0x9fa0
			# SYSFS_MAGIC
			dont_measure fsmagic=0x62656572
			# DEBUGFS_MAGIC
			dont_measure fsmagic=0x64626720
			# TMPFS_MAGIC
			dont_measure fsmagic=0x01021994
			# SECURITYFS_MAGIC
			dont_measure fsmagic=0x73636673

			measure func=BPRM_CHECK
			measure func=FILE_MMAP mask=MAY_EXEC
			measure func=INODE_PERM mask=MAY_READ uid=0

		The default policy measures all executables in bprm_check,
		all files mmapped executable in file_mmap, and all files
		open for read by root in inode_permission.

		Examples of LSM specific definitions:

		SELinux:
			# SELINUX_MAGIC
			dont_measure fsmagic=0xF97CFF8C

			dont_measure obj_type=var_log_t
			dont_measure obj_type=auditd_log_t
			measure subj_user=system_u func=INODE_PERM mask=MAY_READ
			measure subj_role=system_r func=INODE_PERM mask=MAY_READ

		Smack:
			measure subj_user=_ func=INODE_PERM mask=MAY_READ
+70 −0
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@@ -41,6 +41,49 @@ Description:
		for the device and attempt to bind to it.  For example:
		for the device and attempt to bind to it.  For example:
		# echo "8086 10f5" > /sys/bus/pci/drivers/foo/new_id
		# echo "8086 10f5" > /sys/bus/pci/drivers/foo/new_id


What:		/sys/bus/pci/drivers/.../remove_id
Date:		February 2009
Contact:	Chris Wright <chrisw@sous-sol.org>
Description:
		Writing a device ID to this file will remove an ID
		that was dynamically added via the new_id sysfs entry.
		The format for the device ID is:
		VVVV DDDD SVVV SDDD CCCC MMMM.	That is Vendor ID, Device
		ID, Subsystem Vendor ID, Subsystem Device ID, Class,
		and Class Mask.  The Vendor ID and Device ID fields are
		required, the rest are optional.  After successfully
		removing an ID, the driver will no longer support the
		device.  This is useful to ensure auto probing won't
		match the driver to the device.  For example:
		# echo "8086 10f5" > /sys/bus/pci/drivers/foo/remove_id

What:		/sys/bus/pci/rescan
Date:		January 2009
Contact:	Linux PCI developers <linux-pci@vger.kernel.org>
Description:
		Writing a non-zero value to this attribute will
		force a rescan of all PCI buses in the system, and
		re-discover previously removed devices.
		Depends on CONFIG_HOTPLUG.

What:		/sys/bus/pci/devices/.../remove
Date:		January 2009
Contact:	Linux PCI developers <linux-pci@vger.kernel.org>
Description:
		Writing a non-zero value to this attribute will
		hot-remove the PCI device and any of its children.
		Depends on CONFIG_HOTPLUG.

What:		/sys/bus/pci/devices/.../rescan
Date:		January 2009
Contact:	Linux PCI developers <linux-pci@vger.kernel.org>
Description:
		Writing a non-zero value to this attribute will
		force a rescan of the device's parent bus and all
		child buses, and re-discover devices removed earlier
		from this part of the device tree.
		Depends on CONFIG_HOTPLUG.

What:		/sys/bus/pci/devices/.../vpd
What:		/sys/bus/pci/devices/.../vpd
Date:		February 2008
Date:		February 2008
Contact:	Ben Hutchings <bhutchings@solarflare.com>
Contact:	Ben Hutchings <bhutchings@solarflare.com>
@@ -52,3 +95,30 @@ Description:
		that some devices may have malformatted data.  If the
		that some devices may have malformatted data.  If the
		underlying VPD has a writable section then the
		underlying VPD has a writable section then the
		corresponding section of this file will be writable.
		corresponding section of this file will be writable.

What:		/sys/bus/pci/devices/.../virtfnN
Date:		March 2009
Contact:	Yu Zhao <yu.zhao@intel.com>
Description:
		This symbolic link appears when hardware supports the SR-IOV
		capability and the Physical Function driver has enabled it.
		The symbolic link points to the PCI device sysfs entry of the
		Virtual Function whose index is N (0...MaxVFs-1).

What:		/sys/bus/pci/devices/.../dep_link
Date:		March 2009
Contact:	Yu Zhao <yu.zhao@intel.com>
Description:
		This symbolic link appears when hardware supports the SR-IOV
		capability and the Physical Function driver has enabled it,
		and this device has vendor specific dependencies with others.
		The symbolic link points to the PCI device sysfs entry of
		Physical Function this device depends on.

What:		/sys/bus/pci/devices/.../physfn
Date:		March 2009
Contact:	Yu Zhao <yu.zhao@intel.com>
Description:
		This symbolic link appears when a device is a Virtual Function.
		The symbolic link points to the PCI device sysfs entry of the
		Physical Function this device associates with.
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