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r: 167910
b: refs/heads/master
c: 06c3aa5
h: refs/heads/master
v: v3
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Eli Cohen authored and Roland Dreier committed Oct 14, 2009
1 parent 0e0c805 commit 18e4ba1
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 61aa1620be20ddad75dde7882509bfe00148b8aa
refs/heads/master: 06c3aa5ef1c9491f4c94483ca52afc420bc58c5a
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What: /sys/class/uwb_rc/uwbN/wusbhc/wusb_chid
What: /sys/class/usb_host/usb_hostN/wusb_chid
Date: July 2008
KernelVersion: 2.6.27
Contact: David Vrabel <david.vrabel@csr.com>
Expand All @@ -9,7 +9,7 @@ Description:

Set an all zero CHID to stop the host controller.

What: /sys/class/uwb_rc/uwbN/wusbhc/wusb_trust_timeout
What: /sys/class/usb_host/usb_hostN/wusb_trust_timeout
Date: July 2008
KernelVersion: 2.6.27
Contact: David Vrabel <david.vrabel@csr.com>
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8 changes: 4 additions & 4 deletions trunk/Documentation/debugging-via-ohci1394.txt
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Expand Up @@ -64,14 +64,14 @@ be used to view the printk buffer of a remote machine, even with live update.

Bernhard Kaindl enhanced firescope to support accessing 64-bit machines
from 32-bit firescope and vice versa:
- http://halobates.de/firewire/firescope-0.2.2.tar.bz2
- ftp://ftp.suse.de/private/bk/firewire/tools/firescope-0.2.2.tar.bz2

and he implemented fast system dump (alpha version - read README.txt):
- http://halobates.de/firewire/firedump-0.1.tar.bz2
- ftp://ftp.suse.de/private/bk/firewire/tools/firedump-0.1.tar.bz2

There is also a gdb proxy for firewire which allows to use gdb to access
data which can be referenced from symbols found by gdb in vmlinux:
- http://halobates.de/firewire/fireproxy-0.33.tar.bz2
- ftp://ftp.suse.de/private/bk/firewire/tools/fireproxy-0.33.tar.bz2

The latest version of this gdb proxy (fireproxy-0.34) can communicate (not
yet stable) with kgdb over an memory-based communication module (kgdbom).
Expand Down Expand Up @@ -178,7 +178,7 @@ Step-by-step instructions for using firescope with early OHCI initialization:

Notes
-----
Documentation and specifications: http://halobates.de/firewire/
Documentation and specifications: ftp://ftp.suse.de/private/bk/firewire/docs

FireWire is a trademark of Apple Inc. - for more information please refer to:
http://en.wikipedia.org/wiki/FireWire
38 changes: 0 additions & 38 deletions trunk/Documentation/feature-removal-schedule.txt
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Expand Up @@ -418,14 +418,6 @@ When: 2.6.33
Why: Should be implemented in userspace, policy daemon.
Who: Johannes Berg <johannes@sipsolutions.net>

---------------------------

What: CONFIG_INOTIFY
When: 2.6.33
Why: last user (audit) will be converted to the newer more generic
and more easily maintained fsnotify subsystem
Who: Eric Paris <eparis@redhat.com>

----------------------------

What: lock_policy_rwsem_* and unlock_policy_rwsem_* will not be
Expand Down Expand Up @@ -459,33 +451,3 @@ Why: OSS sound_core grabs all legacy minors (0-255) of SOUND_MAJOR
will also allow making ALSA OSS emulation independent of
sound_core. The dependency will be broken then too.
Who: Tejun Heo <tj@kernel.org>

----------------------------

What: Support for VMware's guest paravirtuliazation technique [VMI] will be
dropped.
When: 2.6.37 or earlier.
Why: With the recent innovations in CPU hardware acceleration technologies
from Intel and AMD, VMware ran a few experiments to compare these
techniques to guest paravirtualization technique on VMware's platform.
These hardware assisted virtualization techniques have outperformed the
performance benefits provided by VMI in most of the workloads. VMware
expects that these hardware features will be ubiquitous in a couple of
years, as a result, VMware has started a phased retirement of this
feature from the hypervisor. We will be removing this feature from the
Kernel too. Right now we are targeting 2.6.37 but can retire earlier if
technical reasons (read opportunity to remove major chunk of pvops)
arise.

Please note that VMI has always been an optimization and non-VMI kernels
still work fine on VMware's platform.
Latest versions of VMware's product which support VMI are,
Workstation 7.0 and VSphere 4.0 on ESX side, future maintainence
releases for these products will continue supporting VMI.

For more details about VMI retirement take a look at this,
http://blogs.vmware.com/guestosguide/2009/09/vmi-retirement.html

Who: Alok N Kataria <akataria@vmware.com>

----------------------------
43 changes: 11 additions & 32 deletions trunk/Documentation/flexible-arrays.txt
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@@ -1,5 +1,5 @@
Using flexible arrays in the kernel
Last updated for 2.6.32
Last updated for 2.6.31
Jonathan Corbet <corbet@lwn.net>

Large contiguous memory allocations can be unreliable in the Linux kernel.
Expand Down Expand Up @@ -40,13 +40,6 @@ argument is passed directly to the internal memory allocation calls. With
the current code, using flags to ask for high memory is likely to lead to
notably unpleasant side effects.

It is also possible to define flexible arrays at compile time with:

DEFINE_FLEX_ARRAY(name, element_size, total);

This macro will result in a definition of an array with the given name; the
element size and total will be checked for validity at compile time.

Storing data into a flexible array is accomplished with a call to:

int flex_array_put(struct flex_array *array, unsigned int element_nr,
Expand Down Expand Up @@ -83,30 +76,16 @@ particular element has never been allocated.
Note that it is possible to get back a valid pointer for an element which
has never been stored in the array. Memory for array elements is allocated
one page at a time; a single allocation could provide memory for several
adjacent elements. Flexible array elements are normally initialized to the
value FLEX_ARRAY_FREE (defined as 0x6c in <linux/poison.h>), so errors
involving that number probably result from use of unstored array entries.
Note that, if array elements are allocated with __GFP_ZERO, they will be
initialized to zero and this poisoning will not happen.

Individual elements in the array can be cleared with:

int flex_array_clear(struct flex_array *array, unsigned int element_nr);

This function will set the given element to FLEX_ARRAY_FREE and return
zero. If storage for the indicated element is not allocated for the array,
flex_array_clear() will return -EINVAL instead. Note that clearing an
element does not release the storage associated with it; to reduce the
allocated size of an array, call:

int flex_array_shrink(struct flex_array *array);

The return value will be the number of pages of memory actually freed.
This function works by scanning the array for pages containing nothing but
FLEX_ARRAY_FREE bytes, so (1) it can be expensive, and (2) it will not work
if the array's pages are allocated with __GFP_ZERO.

It is possible to remove all elements of an array with a call to:
adjacent elements. The flexible array code does not know if a specific
element has been written; it only knows if the associated memory is
present. So a flex_array_get() call on an element which was never stored
in the array has the potential to return a pointer to random data. If the
caller does not have a separate way to know which elements were actually
stored, it might be wise, at least, to add GFP_ZERO to the flags argument
to ensure that all elements are zeroed.

There is no way to remove a single element from the array. It is possible,
though, to remove all elements with a call to:

void flex_array_free_parts(struct flex_array *array);

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57 changes: 1 addition & 56 deletions trunk/Documentation/hwmon/sysfs-interface
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Expand Up @@ -353,20 +353,10 @@ power[1-*]_average Average power use
Unit: microWatt
RO

power[1-*]_average_interval Power use averaging interval. A poll
notification is sent to this file if the
hardware changes the averaging interval.
power[1-*]_average_interval Power use averaging interval
Unit: milliseconds
RW

power[1-*]_average_interval_max Maximum power use averaging interval
Unit: milliseconds
RO

power[1-*]_average_interval_min Minimum power use averaging interval
Unit: milliseconds
RO

power[1-*]_average_highest Historical average maximum power use
Unit: microWatt
RO
Expand All @@ -375,18 +365,6 @@ power[1-*]_average_lowest Historical average minimum power use
Unit: microWatt
RO

power[1-*]_average_max A poll notification is sent to
power[1-*]_average when power use
rises above this value.
Unit: microWatt
RW

power[1-*]_average_min A poll notification is sent to
power[1-*]_average when power use
sinks below this value.
Unit: microWatt
RW

power[1-*]_input Instantaneous power use
Unit: microWatt
RO
Expand All @@ -403,39 +381,6 @@ power[1-*]_reset_history Reset input_highest, input_lowest,
average_highest and average_lowest.
WO

power[1-*]_accuracy Accuracy of the power meter.
Unit: Percent
RO

power[1-*]_alarm 1 if the system is drawing more power than the
cap allows; 0 otherwise. A poll notification is
sent to this file when the power use exceeds the
cap. This file only appears if the cap is known
to be enforced by hardware.
RO

power[1-*]_cap If power use rises above this limit, the
system should take action to reduce power use.
A poll notification is sent to this file if the
cap is changed by the hardware. The *_cap
files only appear if the cap is known to be
enforced by hardware.
Unit: microWatt
RW

power[1-*]_cap_hyst Margin of hysteresis built around capping and
notification.
Unit: microWatt
RW

power[1-*]_cap_max Maximum cap that can be set.
Unit: microWatt
RO

power[1-*]_cap_min Minimum cap that can be set.
Unit: microWatt
RO

**********
* Energy *
**********
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1 change: 1 addition & 0 deletions trunk/Documentation/lguest/lguest.c
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Expand Up @@ -42,6 +42,7 @@
#include <signal.h>
#include "linux/lguest_launcher.h"
#include "linux/virtio_config.h"
#include <linux/virtio_ids.h>
#include "linux/virtio_net.h"
#include "linux/virtio_blk.h"
#include "linux/virtio_console.h"
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136 changes: 0 additions & 136 deletions trunk/Documentation/vm/hwpoison.txt

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