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Commit 860cf889 authored by Ingo Molnar's avatar Ingo Molnar
Browse files

Merge branches 'irq/sparseirq', 'irq/genirq' and 'irq/urgent'; commit 'v2.6.28' into irq/core

parents e262a7ba 973656fe f2b662da 4a6908a3

Documentation/DMA-API.txt

+3 −5
Original line number Diff line number Diff line
@@ -316,12 +316,10 @@ reduce current DMA mapping usage or delay and try again later). 
	pci_map_sg(struct pci_dev *hwdev, struct scatterlist *sg,

		int nents, int direction)



Maps a scatter gather list from the block layer.



Returns: the number of physical segments mapped (this may be shorter

than <nents> passed in if the block layer determines that some

elements of the scatter/gather list are physically adjacent and thus

may be mapped with a single entry).

than <nents> passed in if some elements of the scatter/gather list are

physically or virtually adjacent and an IOMMU maps them with a single

entry).



Please note that the sg cannot be mapped again if it has been mapped once.

The mapping process is allowed to destroy information in the sg.

Documentation/arm/mem_alignment

+1 −1
Original line number Diff line number Diff line
@@ -24,7 +24,7 @@ real bad - it changes the behaviour of all unaligned instructions in user 
space, and might cause programs to fail unexpectedly.



To change the alignment trap behavior, simply echo a number into

/proc/sys/debug/alignment.  The number is made up from various bits:

/proc/cpu/alignment.  The number is made up from various bits:



bit		behavior when set

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

Documentation/cpu-freq/user-guide.txt

+12 −0
Original line number Diff line number Diff line
@@ -23,6 +23,7 @@ Contents: 
1.3 sparc64

1.4 ppc

1.5 SuperH

1.6 Blackfin



2. "Policy" / "Governor"?

2.1 Policy
@@ -97,6 +98,17 @@ The following SuperH processors are supported by cpufreq: 
SH-3

SH-4



1.6 Blackfin

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



The following Blackfin processors are supported by cpufreq:



BF522, BF523, BF524, BF525, BF526, BF527, Rev 0.1 or higher

BF531, BF532, BF533, Rev 0.3 or higher

BF534, BF536, BF537, Rev 0.2 or higher

BF561, Rev 0.3 or higher

BF542, BF544, BF547, BF548, BF549, Rev 0.1 or higher





2. "Policy" / "Governor" ?

==========================

Documentation/filesystems/ocfs2.txt

+0 −3
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@@ -28,10 +28,7 @@ Manish Singh <manish.singh@oracle.com> 
Caveats

=======

Features which OCFS2 does not support yet:

	- extended attributes

	- quotas

	- cluster aware flock

	- cluster aware lockf

	- Directory change notification (F_NOTIFY)

	- Distributed Caching (F_SETLEASE/F_GETLEASE/break_lease)

	- POSIX ACLs

Documentation/filesystems/proc.txt

+27 −0
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@@ -44,6 +44,7 @@ Table of Contents 
  2.14	/proc/<pid>/io - Display the IO accounting fields

  2.15	/proc/<pid>/coredump_filter - Core dump filtering settings

  2.16	/proc/<pid>/mountinfo - Information about mounts

  2.17	/proc/sys/fs/epoll - Configuration options for the epoll interface



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

Preface
@@ -2483,4 +2484,30 @@ For more information on mount propagation see: 


  Documentation/filesystems/sharedsubtree.txt



2.17	/proc/sys/fs/epoll - Configuration options for the epoll interface

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



This directory contains configuration options for the epoll(7) interface.



max_user_instances

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



This is the maximum number of epoll file descriptors that a single user can

have open at a given time. The default value is 128, and should be enough

for normal users.



max_user_watches

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



Every epoll file descriptor can store a number of files to be monitored

for event readiness. Each one of these monitored files constitutes a "watch".

This configuration option sets the maximum number of "watches" that are

allowed for each user.

Each "watch" costs roughly 90 bytes on a 32bit kernel, and roughly 160 bytes

on a 64bit one.

The current default value for  max_user_watches  is the 1/32 of the available

low memory, divided for the "watch" cost in bytes.





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