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r: 177559
b: refs/heads/master
c: 8fa79e0
h: refs/heads/master
i:
  177557: f53b2c8
  177555: cedf19e
  177551: cc5b3e1
v: v3
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Len Brown committed Dec 16, 2009
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: d81c45e1c9369855901420f79114852eba2ea16a
refs/heads/master: 8fa79e08f50f4ec1fd8903eca6fd6f36c36dd4c4
1 change: 1 addition & 0 deletions trunk/.gitignore
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Expand Up @@ -25,6 +25,7 @@
*.elf
*.bin
*.gz
*.bz2
*.lzma
*.patch
*.gcno
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8 changes: 8 additions & 0 deletions trunk/Documentation/ABI/stable/sysfs-driver-qla2xxx
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What: /sys/bus/pci/drivers/qla2xxx/.../devices/*
Date: September 2009
Contact: QLogic Linux Driver <linux-driver@qlogic.com>
Description: qla2xxx-udev.sh currently looks for uevent CHANGE events to
signal a firmware-dump has been generated by the driver and is
ready for retrieval.
Users: qla2xxx-udev.sh. Proposed changes should be mailed to
linux-driver@qlogic.com
2 changes: 1 addition & 1 deletion trunk/Documentation/ABI/testing/procfs-diskstats
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Expand Up @@ -8,7 +8,7 @@ Description:
1 - major number
2 - minor mumber
3 - device name
4 - reads completed succesfully
4 - reads completed successfully
5 - reads merged
6 - sectors read
7 - time spent reading (ms)
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2 changes: 1 addition & 1 deletion trunk/Documentation/ABI/testing/sysfs-block
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Expand Up @@ -4,7 +4,7 @@ Contact: Jerome Marchand <jmarchan@redhat.com>
Description:
The /sys/block/<disk>/stat files displays the I/O
statistics of disk <disk>. They contain 11 fields:
1 - reads completed succesfully
1 - reads completed successfully
2 - reads merged
3 - sectors read
4 - time spent reading (ms)
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13 changes: 13 additions & 0 deletions trunk/Documentation/ABI/testing/sysfs-bus-usb
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Expand Up @@ -144,3 +144,16 @@ Description:

Write a 1 to force the device to disconnect
(equivalent to unplugging a wired USB device).

What: /sys/bus/usb/drivers/.../remove_id
Date: November 2009
Contact: CHENG Renquan <rqcheng@smu.edu.sg>
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:
idVendor idProduct. 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 "046d c315" > /sys/bus/usb/drivers/foo/remove_id
13 changes: 13 additions & 0 deletions trunk/Documentation/ABI/testing/sysfs-class-uwb_rc-wusbhc
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Expand Up @@ -23,3 +23,16 @@ Description:
Since this relates to security (specifically, the
lifetime of PTKs and GTKs) it should not be changed
from the default.

What: /sys/class/uwb_rc/uwbN/wusbhc/wusb_phy_rate
Date: August 2009
KernelVersion: 2.6.32
Contact: David Vrabel <david.vrabel@csr.com>
Description:
The maximum PHY rate to use for all connected devices.
This is only of limited use for testing and
development as the hardware's automatic rate
adaptation is better then this simple control.

Refer to [ECMA-368] section 10.3.1.1 for the value to
use.
14 changes: 13 additions & 1 deletion trunk/Documentation/ABI/testing/sysfs-devices-memory
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Expand Up @@ -60,6 +60,19 @@ Description:
Users: hotplug memory remove tools
https://w3.opensource.ibm.com/projects/powerpc-utils/


What: /sys/devices/system/memoryX/nodeY
Date: October 2009
Contact: Linux Memory Management list <linux-mm@kvack.org>
Description:
When CONFIG_NUMA is enabled, a symbolic link that
points to the corresponding NUMA node directory.

For example, the following symbolic link is created for
memory section 9 on node0:
/sys/devices/system/memory/memory9/node0 -> ../../node/node0


What: /sys/devices/system/node/nodeX/memoryY
Date: September 2008
Contact: Gary Hade <garyhade@us.ibm.com>
Expand All @@ -70,4 +83,3 @@ Description:
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

47 changes: 47 additions & 0 deletions trunk/Documentation/ABI/testing/sysfs-devices-system-cpu
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Expand Up @@ -62,6 +62,35 @@ Description: CPU topology files that describe kernel limits related to
See Documentation/cputopology.txt for more information.


What: /sys/devices/system/cpu/probe
/sys/devices/system/cpu/release
Date: November 2009
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Dynamic addition and removal of CPU's. This is not hotplug
removal, this is meant complete removal/addition of the CPU
from the system.

probe: writes to this file will dynamically add a CPU to the
system. Information written to the file to add CPU's is
architecture specific.

release: writes to this file dynamically remove a CPU from
the system. Information writtento the file to remove CPU's
is architecture specific.

What: /sys/devices/system/cpu/cpu#/node
Date: October 2009
Contact: Linux memory management mailing list <linux-mm@kvack.org>
Description: Discover NUMA node a CPU belongs to

When CONFIG_NUMA is enabled, a symbolic link that points
to the corresponding NUMA node directory.

For example, the following symlink is created for cpu42
in NUMA node 2:

/sys/devices/system/cpu/cpu42/node2 -> ../../node/node2


What: /sys/devices/system/cpu/cpu#/node
Date: October 2009
Expand Down Expand Up @@ -136,6 +165,24 @@ Description: Discover cpuidle policy and mechanism
See files in Documentation/cpuidle/ for more information.


What: /sys/devices/system/cpu/cpu#/cpufreq/*
Date: pre-git history
Contact: cpufreq@vger.kernel.org
Description: Discover and change clock speed of CPUs

Clock scaling allows you to change the clock speed of the
CPUs on the fly. This is a nice method to save battery
power, because the lower the clock speed, the less power
the CPU consumes.

There are many knobs to tweak in this directory.

See files in Documentation/cpu-freq/ for more information.

In particular, read Documentation/cpu-freq/user-guide.txt
to learn how to control the knobs.


What: /sys/devices/system/cpu/cpu*/cache/index*/cache_disable_X
Date: August 2008
KernelVersion: 2.6.27
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109 changes: 58 additions & 51 deletions trunk/Documentation/ABI/testing/sysfs-kernel-slab
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Expand Up @@ -45,8 +45,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The alloc_fastpath file is read-only and specifies how many
objects have been allocated using the fast path.
The alloc_fastpath file shows how many objects have been
allocated using the fast path. It can be written to clear the
current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/alloc_from_partial
Expand All @@ -55,9 +56,10 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The alloc_from_partial file is read-only and specifies how
many times a cpu slab has been full and it has been refilled
by using a slab from the list of partially used slabs.
The alloc_from_partial file shows how many times a cpu slab has
been full and it has been refilled by using a slab from the list
of partially used slabs. It can be written to clear the current
count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/alloc_refill
Expand All @@ -66,9 +68,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The alloc_refill file is read-only and specifies how many
times the per-cpu freelist was empty but there were objects
available as the result of remote cpu frees.
The alloc_refill file shows how many times the per-cpu freelist
was empty but there were objects available as the result of
remote cpu frees. It can be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/alloc_slab
Expand All @@ -77,8 +79,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The alloc_slab file is read-only and specifies how many times
a new slab had to be allocated from the page allocator.
The alloc_slab file is shows how many times a new slab had to
be allocated from the page allocator. It can be written to
clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/alloc_slowpath
Expand All @@ -87,9 +90,10 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The alloc_slowpath file is read-only and specifies how many
objects have been allocated using the slow path because of a
refill or allocation from a partial or new slab.
The alloc_slowpath file shows how many objects have been
allocated using the slow path because of a refill or
allocation from a partial or new slab. It can be written to
clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/cache_dma
Expand Down Expand Up @@ -117,10 +121,11 @@ KernelVersion: 2.6.31
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file cpuslab_flush is read-only and specifies how many
times a cache's cpu slabs have been flushed as the result of
destroying or shrinking a cache, a cpu going offline, or as
the result of forcing an allocation from a certain node.
The file cpuslab_flush shows how many times a cache's cpu slabs
have been flushed as the result of destroying or shrinking a
cache, a cpu going offline, or as the result of forcing an
allocation from a certain node. It can be written to clear the
current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/ctor
Expand All @@ -139,8 +144,8 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file deactivate_empty is read-only and specifies how many
times an empty cpu slab was deactivated.
The deactivate_empty file shows how many times an empty cpu slab
was deactivated. It can be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/deactivate_full
Expand All @@ -149,8 +154,8 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file deactivate_full is read-only and specifies how many
times a full cpu slab was deactivated.
The deactivate_full file shows how many times a full cpu slab
was deactivated. It can be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/deactivate_remote_frees
Expand All @@ -159,9 +164,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file deactivate_remote_frees is read-only and specifies how
many times a cpu slab has been deactivated and contained free
objects that were freed remotely.
The deactivate_remote_frees file shows how many times a cpu slab
has been deactivated and contained free objects that were freed
remotely. It can be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/deactivate_to_head
Expand All @@ -170,9 +175,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file deactivate_to_head is read-only and specifies how
many times a partial cpu slab was deactivated and added to the
head of its node's partial list.
The deactivate_to_head file shows how many times a partial cpu
slab was deactivated and added to the head of its node's partial
list. It can be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/deactivate_to_tail
Expand All @@ -181,9 +186,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file deactivate_to_tail is read-only and specifies how
many times a partial cpu slab was deactivated and added to the
tail of its node's partial list.
The deactivate_to_tail file shows how many times a partial cpu
slab was deactivated and added to the tail of its node's partial
list. It can be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/destroy_by_rcu
Expand All @@ -201,9 +206,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file free_add_partial is read-only and specifies how many
times an object has been freed in a full slab so that it had to
added to its node's partial list.
The free_add_partial file shows how many times an object has
been freed in a full slab so that it had to added to its node's
partial list. It can be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/free_calls
Expand All @@ -222,9 +227,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The free_fastpath file is read-only and specifies how many
objects have been freed using the fast path because it was an
object from the cpu slab.
The free_fastpath file shows how many objects have been freed
using the fast path because it was an object from the cpu slab.
It can be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/free_frozen
Expand All @@ -233,9 +238,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The free_frozen file is read-only and specifies how many
objects have been freed to a frozen slab (i.e. a remote cpu
slab).
The free_frozen file shows how many objects have been freed to
a frozen slab (i.e. a remote cpu slab). It can be written to
clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/free_remove_partial
Expand All @@ -244,9 +249,10 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file free_remove_partial is read-only and specifies how
many times an object has been freed to a now-empty slab so
that it had to be removed from its node's partial list.
The free_remove_partial file shows how many times an object has
been freed to a now-empty slab so that it had to be removed from
its node's partial list. It can be written to clear the current
count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/free_slab
Expand All @@ -255,8 +261,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The free_slab file is read-only and specifies how many times an
empty slab has been freed back to the page allocator.
The free_slab file shows how many times an empty slab has been
freed back to the page allocator. It can be written to clear
the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/free_slowpath
Expand All @@ -265,9 +272,9 @@ KernelVersion: 2.6.25
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The free_slowpath file is read-only and specifies how many
objects have been freed using the slow path (i.e. to a full or
partial slab).
The free_slowpath file shows how many objects have been freed
using the slow path (i.e. to a full or partial slab). It can
be written to clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/hwcache_align
Expand Down Expand Up @@ -346,10 +353,10 @@ KernelVersion: 2.6.26
Contact: Pekka Enberg <penberg@cs.helsinki.fi>,
Christoph Lameter <cl@linux-foundation.org>
Description:
The file order_fallback is read-only and specifies how many
times an allocation of a new slab has not been possible at the
cache's order and instead fallen back to its minimum possible
order.
The order_fallback file shows how many times an allocation of a
new slab has not been possible at the cache's order and instead
fallen back to its minimum possible order. It can be written to
clear the current count.
Available when CONFIG_SLUB_STATS is enabled.

What: /sys/kernel/slab/cache/partial
Expand Down
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