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r: 335483
b: refs/heads/master
c: df0cfd6
h: refs/heads/master
i:
  335481: 6522e9c
  335479: 35e0d07
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Jiri Kosina committed Nov 1, 2012
1 parent 5f94cd7 commit 7c38178
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: ce6d841e9c0e177a594615dc0e69dd04972a696c
refs/heads/master: df0cfd6990347c20ae031f3f34137cba274f1972
8 changes: 0 additions & 8 deletions trunk/.gitignore
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Expand Up @@ -84,11 +84,3 @@ GTAGS
*.orig
*~
\#*#

#
# Leavings from module signing
#
extra_certificates
signing_key.priv
signing_key.x509
x509.genkey
6 changes: 4 additions & 2 deletions trunk/Documentation/00-INDEX
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Expand Up @@ -210,8 +210,6 @@ 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
Expand Down Expand Up @@ -242,6 +240,8 @@ 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
Expand Down Expand Up @@ -270,6 +270,8 @@ 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
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22 changes: 22 additions & 0 deletions trunk/Documentation/ABI/obsolete/proc-pid-oom_adj
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What: /proc/<pid>/oom_adj
When: August 2012
Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's
badness heuristic used to determine which task to kill when the kernel
is out of memory.

The badness heuristic has since been rewritten since the introduction of
this tunable such that its meaning is deprecated. The value was
implemented as a bitshift on a score generated by the badness()
function that did not have any precise units of measure. With the
rewrite, the score is given as a proportion of available memory to the
task allocating pages, so using a bitshift which grows the score
exponentially is, thus, impossible to tune with fine granularity.

A much more powerful interface, /proc/<pid>/oom_score_adj, was
introduced with the oom killer rewrite that allows users to increase or
decrease the badness score linearly. This interface will replace
/proc/<pid>/oom_adj.

A warning will be emitted to the kernel log if an application uses this
deprecated interface. After it is printed once, future warnings will be
suppressed until the kernel is rebooted.
25 changes: 4 additions & 21 deletions trunk/Documentation/ABI/testing/ima_policy
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Expand Up @@ -12,65 +12,48 @@ Description:
then closing the file. The new policy takes effect after
the file ima/policy is closed.

IMA appraisal, if configured, uses these file measurements
for local measurement appraisal.

rule format: action [condition ...]

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

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

default policy:
# PROC_SUPER_MAGIC
dont_measure fsmagic=0x9fa0
dont_appraise fsmagic=0x9fa0
# SYSFS_MAGIC
dont_measure fsmagic=0x62656572
dont_appraise fsmagic=0x62656572
# DEBUGFS_MAGIC
dont_measure fsmagic=0x64626720
dont_appraise fsmagic=0x64626720
# TMPFS_MAGIC
dont_measure fsmagic=0x01021994
dont_appraise fsmagic=0x01021994
# RAMFS_MAGIC
dont_measure fsmagic=0x858458f6
dont_appraise fsmagic=0x858458f6
# SECURITYFS_MAGIC
dont_measure fsmagic=0x73636673
dont_appraise fsmagic=0x73636673

measure func=BPRM_CHECK
measure func=FILE_MMAP mask=MAY_EXEC
measure func=FILE_CHECK mask=MAY_READ uid=0
appraise fowner=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 do_filp_open. The default appraisal
policy appraises all files owned by root.
open for read by root in do_filp_open.

Examples of LSM specific definitions:

SELinux:
# SELINUX_MAGIC
dont_measure fsmagic=0xf97cff8c
dont_appraise fsmagic=0xf97cff8c
dont_measure fsmagic=0xF97CFF8C

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

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14 changes: 0 additions & 14 deletions trunk/Documentation/ABI/testing/sysfs-block
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Expand Up @@ -206,17 +206,3 @@ 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.

12 changes: 6 additions & 6 deletions trunk/Documentation/ABI/testing/sysfs-bus-fcoe
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Expand Up @@ -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)
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18 changes: 6 additions & 12 deletions trunk/Documentation/ABI/testing/sysfs-bus-rbd
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Expand Up @@ -25,10 +25,6 @@ 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.
Expand All @@ -37,11 +33,6 @@ 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.
Expand All @@ -66,6 +57,12 @@ 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
Expand All @@ -82,7 +79,4 @@ snap_size

The size of the image when this snapshot was taken.

snap_features

A hexadecimal encoding of the feature bits for this snapshot.

7 changes: 0 additions & 7 deletions trunk/Documentation/ABI/testing/sysfs-bus-usb
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Expand Up @@ -220,10 +220,3 @@ Description:
If the device doesn't support LTM, the file will read "no".
The file will be present for all speeds of USB devices, and will
always read "no" for USB 1.1 and USB 2.0 devices.

What: /sys/bus/usb/devices/.../(hub interface)/portX
Date: August 2012
Contact: Lan Tianyu <tianyu.lan@intel.com>
Description:
The /sys/bus/usb/devices/.../(hub interface)/portX
is usb port device's sysfs directory.
17 changes: 0 additions & 17 deletions trunk/Documentation/ABI/testing/sysfs-devices-firmware_node
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11 changes: 0 additions & 11 deletions trunk/Documentation/ABI/testing/sysfs-devices-system-cpu
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Expand Up @@ -176,14 +176,3 @@ Description: Disable L3 cache indices
All AMD processors with L3 caches provide this functionality.
For details, see BKDGs at
http://developer.amd.com/documentation/guides/Pages/default.aspx


What: /sys/devices/system/cpu/cpufreq/boost
Date: August 2012
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Processor frequency boosting control

This switch controls the boost setting for the whole system.
Boosting allows the CPU and the firmware to run at a frequency
beyound it's nominal limit.
More details can be found in Documentation/cpu-freq/boost.txt
70 changes: 0 additions & 70 deletions trunk/Documentation/ABI/testing/sysfs-driver-ppi
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13 changes: 0 additions & 13 deletions trunk/Documentation/ABI/testing/sysfs-fs-ext4
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Expand Up @@ -96,16 +96,3 @@ 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).
6 changes: 1 addition & 5 deletions trunk/Documentation/ABI/testing/sysfs-ptp
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Expand Up @@ -19,11 +19,7 @@ Date: September 2010
Contact: Richard Cochran <richardcochran@gmail.com>
Description:
This file contains the name of the PTP hardware clock
as a human readable string. The purpose of this
attribute is to provide the user with a "friendly
name" and to help distinguish PHY based devices from
MAC based ones. The string does not necessarily have
to be any kind of unique id.
as a human readable string.

What: /sys/class/ptp/ptpN/max_adjustment
Date: September 2010
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9 changes: 0 additions & 9 deletions trunk/Documentation/ABI/testing/sysfs-tty
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Expand Up @@ -17,12 +17,3 @@ Description:
device, like 'tty1'.
The file supports poll() to detect virtual
console switches.

What: /sys/class/tty/ttyS0/uartclk
Date: Sep 2012
Contact: Tomas Hlavacek <tmshlvck@gmail.com>
Description:
Shows the current uartclk value associated with the
UART port in serial_core, that is bound to TTY like ttyS0.
uartclk = 16 * baud_base

10 changes: 0 additions & 10 deletions trunk/Documentation/CodingStyle
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Expand Up @@ -454,16 +454,6 @@ 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
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