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r: 104180
b: refs/heads/master
c: ea3e6c5
h: refs/heads/master
v: v3
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Harvey Harrison authored and Dmitry Torokhov committed May 16, 2008
1 parent ef9cb8c commit 27f4338
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2 changes: 1 addition & 1 deletion [refs]
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@@ -1,2 +1,2 @@
---
refs/heads/master: f8b71a3a92d69cb1c9c2162f9235d3dd550e4aa0
refs/heads/master: ea3e6c59266b783b103c0f42a8de5dbe565a43d4
13 changes: 3 additions & 10 deletions trunk/.gitignore
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Expand Up @@ -3,10 +3,6 @@
# subdirectories here. Add them in the ".gitignore" file
# in that subdirectory instead.
#
# NOTE! Please use 'git-ls-files -i --exclude-standard'
# command after changing this file, to see if there are
# any tracked files which get ignored after the change.
#
# Normal rules
#
.*
Expand All @@ -22,21 +18,18 @@
*.lst
*.symtypes
*.order
*.elf
*.bin
*.gz

#
# Top-level generic files
#
tags
TAGS
vmlinux
vmlinux*
!vmlinux.lds.S
System.map
Module.markers
Module.symvers
!.gitignore
!.mailmap

#
# Generated include files
Expand All @@ -59,8 +52,8 @@ series

# cscope files
cscope.*
ncscope.*

*.orig
*.rej
*~
\#*#
5 changes: 2 additions & 3 deletions trunk/CREDITS
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Expand Up @@ -2611,9 +2611,8 @@ S: Perth, Western Australia
S: Australia

N: Miguel Ojeda Sandonis
E: miguel.ojeda.sandonis@gmail.com
W: http://miguelojeda.es
W: http://jair.lab.fi.uva.es/~migojed/
E: maxextreme@gmail.com
W: http://maxextreme.googlepages.com/
D: Author of the ks0108, cfag12864b and cfag12864bfb auxiliary display drivers.
D: Maintainer of the auxiliary display drivers tree (drivers/auxdisplay/*)
S: C/ Mieses 20, 9-B
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34 changes: 0 additions & 34 deletions trunk/Documentation/ABI/testing/sysfs-block
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Expand Up @@ -26,37 +26,3 @@ Description:
I/O statistics of partition <part>. The format is the
same as the above-written /sys/block/<disk>/stat
format.


What: /sys/block/<disk>/integrity/format
Date: June 2008
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Metadata format for integrity capable block device.
E.g. T10-DIF-TYPE1-CRC.


What: /sys/block/<disk>/integrity/read_verify
Date: June 2008
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Indicates whether the block layer should verify the
integrity of read requests serviced by devices that
support sending integrity metadata.


What: /sys/block/<disk>/integrity/tag_size
Date: June 2008
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Number of bytes of integrity tag space available per
512 bytes of data.


What: /sys/block/<disk>/integrity/write_generate
Date: June 2008
Contact: Martin K. Petersen <martin.petersen@oracle.com>
Description:
Indicates whether the block layer should automatically
generate checksums for write requests bound for
devices that support receiving integrity metadata.
35 changes: 0 additions & 35 deletions trunk/Documentation/ABI/testing/sysfs-bus-css

This file was deleted.

4 changes: 0 additions & 4 deletions trunk/Documentation/ABI/testing/sysfs-class-bdi
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Expand Up @@ -14,10 +14,6 @@ MAJOR:MINOR
non-block filesystems which provide their own BDI, such as NFS
and FUSE.

MAJOR:MINOR-fuseblk

Value of st_dev on fuseblk filesystems.

default

The default backing dev, used for non-block device backed
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127 changes: 40 additions & 87 deletions trunk/Documentation/ABI/testing/sysfs-firmware-acpi
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Expand Up @@ -29,46 +29,46 @@ Description:

$ cd /sys/firmware/acpi/interrupts
$ grep . *
error: 0
ff_gbl_lock: 0 enable
ff_pmtimer: 0 invalid
ff_pwr_btn: 0 enable
ff_rt_clk: 2 disable
ff_slp_btn: 0 invalid
gpe00: 0 invalid
gpe01: 0 enable
gpe02: 108 enable
gpe03: 0 invalid
gpe04: 0 invalid
gpe05: 0 invalid
gpe06: 0 enable
gpe07: 0 enable
gpe08: 0 invalid
gpe09: 0 invalid
gpe0A: 0 invalid
gpe0B: 0 invalid
gpe0C: 0 invalid
gpe0D: 0 invalid
gpe0E: 0 invalid
gpe0F: 0 invalid
gpe10: 0 invalid
gpe11: 0 invalid
gpe12: 0 invalid
gpe13: 0 invalid
gpe14: 0 invalid
gpe15: 0 invalid
gpe16: 0 invalid
gpe17: 1084 enable
gpe18: 0 enable
gpe19: 0 invalid
gpe1A: 0 invalid
gpe1B: 0 invalid
gpe1C: 0 invalid
gpe1D: 0 invalid
gpe1E: 0 invalid
gpe1F: 0 invalid
gpe_all: 1192
sci: 1194
error:0
ff_gbl_lock:0
ff_pmtimer:0
ff_pwr_btn:0
ff_rt_clk:0
ff_slp_btn:0
gpe00:0
gpe01:0
gpe02:0
gpe03:0
gpe04:0
gpe05:0
gpe06:0
gpe07:0
gpe08:0
gpe09:174
gpe0A:0
gpe0B:0
gpe0C:0
gpe0D:0
gpe0E:0
gpe0F:0
gpe10:0
gpe11:60
gpe12:0
gpe13:0
gpe14:0
gpe15:0
gpe16:0
gpe17:0
gpe18:0
gpe19:7
gpe1A:0
gpe1B:0
gpe1C:0
gpe1D:0
gpe1E:0
gpe1F:0
gpe_all:241
sci:241

sci - The total number of times the ACPI SCI
has claimed an interrupt.
Expand All @@ -89,13 +89,6 @@ Description:

error - an interrupt that can't be accounted for above.

invalid: it's either a wakeup GPE or a GPE/Fixed Event that
doesn't have an event handler.

disable: the GPE/Fixed Event is valid but disabled.

enable: the GPE/Fixed Event is valid and enabled.

Root has permission to clear any of these counters. Eg.
# echo 0 > gpe11

Expand All @@ -104,43 +97,3 @@ Description:

None of these counters has an effect on the function
of the system, they are simply statistics.

Besides this, user can also write specific strings to these files
to enable/disable/clear ACPI interrupts in user space, which can be
used to debug some ACPI interrupt storm issues.

Note that only writting to VALID GPE/Fixed Event is allowed,
i.e. user can only change the status of runtime GPE and
Fixed Event with event handler installed.

Let's take power button fixed event for example, please kill acpid
and other user space applications so that the machine won't shutdown
when pressing the power button.
# cat ff_pwr_btn
0
# press the power button for 3 times;
# cat ff_pwr_btn
3
# echo disable > ff_pwr_btn
# cat ff_pwr_btn
disable
# press the power button for 3 times;
# cat ff_pwr_btn
disable
# echo enable > ff_pwr_btn
# cat ff_pwr_btn
4
/*
* this is because the status bit is set even if the enable bit is cleared,
* and it triggers an ACPI fixed event when the enable bit is set again
*/
# press the power button for 3 times;
# cat ff_pwr_btn
7
# echo disable > ff_pwr_btn
# press the power button for 3 times;
# echo clear > ff_pwr_btn /* clear the status bit */
# echo disable > ff_pwr_btn
# cat ff_pwr_btn
7

71 changes: 0 additions & 71 deletions trunk/Documentation/ABI/testing/sysfs-firmware-memmap

This file was deleted.

25 changes: 0 additions & 25 deletions trunk/Documentation/DocBook/kernel-locking.tmpl
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Expand Up @@ -703,31 +703,6 @@
</sect1>
</chapter>

<chapter id="trylock-functions">
<title>The trylock Functions</title>
<para>
There are functions that try to acquire a lock only once and immediately
return a value telling about success or failure to acquire the lock.
They can be used if you need no access to the data protected with the lock
when some other thread is holding the lock. You should acquire the lock
later if you then need access to the data protected with the lock.
</para>

<para>
<function>spin_trylock()</function> does not spin but returns non-zero if
it acquires the spinlock on the first try or 0 if not. This function can
be used in all contexts like <function>spin_lock</function>: you must have
disabled the contexts that might interrupt you and acquire the spin lock.
</para>

<para>
<function>mutex_trylock()</function> does not suspend your task
but returns non-zero if it could lock the mutex on the first try
or 0 if not. This function cannot be safely used in hardware or software
interrupt contexts despite not sleeping.
</para>
</chapter>

<chapter id="Examples">
<title>Common Examples</title>
<para>
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