| Commit message (Collapse) | Author | Age | Files | Lines |
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git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
[IA64] make pfm_get_task work with virtual pids
[IA64] honor notify_die() returning NOTIFY_STOP
[IA64] remove dead code: __cpu_{down,die} from !HOTPLUG_CPU
[IA64] Appoint kvm/ia64 Maintainers
[IA64] ia64_set_psr should use srlz.i
[IA64] Export three symbols for module use
[IA64] mca style cleanup
[IA64] sn_hwperf semaphore to mutex
[IA64] generalize attribute of fsyscall_gtod_data
[IA64] efi.c Add /* never reached */ annotation
[IA64] efi.c Spelling/punctuation fixes
[IA64] Make efi.c mostly fit in 80 columns
[IA64] aliasing-test: fix gcc warnings on non-ia64
[IA64] Slim-down __clear_bit_unlock
[IA64] Fix the order of atomic operations in restore_previous_kprobes on ia64
[IA64] constify function pointer tables
[IA64] fix userspace compile error in gcc_intrin.h
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Eliminate all build warnings. OK, these build warnings are from
a build on x86_64. When I build on ia64, I don't see warnings.
Now builds cleanly on ia64 and x86_64.
Documentation/ia64/aliasing-test.c: In function 'map_mem':
Documentation/ia64/aliasing-test.c:39: warning: implicit declaration of function 'ioctl'
Documentation/ia64/aliasing-test.c: In function 'scan_rom':
Documentation/ia64/aliasing-test.c:183: warning: format '%ld' expects type 'long int', but argument 4 has type 'int'
Documentation/ia64/aliasing-test.c: At top level:
Documentation/ia64/aliasing-test.c:208: warning: function declaration isn't a prototype
Documentation/ia64/aliasing-test.c: In function 'main':
Documentation/ia64/aliasing-test.c:259: warning: control reaches end of non-void function
Documentation/ia64/aliasing-test.c: In function 'scan_rom':
Documentation/ia64/aliasing-test.c:152: warning: 'rc' may be used uninitialized in this function
Documentation/ia64/aliasing-test.c: In function 'scan_tree':
Documentation/ia64/aliasing-test.c:68: warning: 'rc' may be used uninitialized in this function
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
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* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6:
[S390] dcss: Initialize workqueue before using it.
[S390] Remove BUILD_BUG_ON() in vmem code.
[S390] sclp_tty/sclp_vt220: Fix scheduling while atomic
[S390] dasd: fix panic caused by alias device offline
[S390] dasd: add ifcc handling
[S390] latencytop s390 support.
[S390] Implement ext2_find_next_bit.
[S390] Cleanup & optimize bitops.
[S390] Define GENERIC_LOCKBREAK.
[S390] console: allow vt220 console to be the only console
[S390] Fix couple of section mismatches.
[S390] Fix smp_call_function_mask semantics.
[S390] Fix linker script.
[S390] DEBUG_PAGEALLOC support for s390.
[S390] cio: Add shutdown callback for ccwgroup.
[S390] cio: Update documentation.
[S390] cio: Clean up chsc response code handling.
[S390] cio: make sense id procedure work with partial hardware response
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Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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The following patch is a generalization of the latency.c implementation done
by Arjan last year. It provides infrastructure for more than one parameter,
and exposes a user mode interface for processes to register pm_qos
expectations of processes.
This interface provides a kernel and user mode interface for registering
performance expectations by drivers, subsystems and user space applications on
one of the parameters.
Currently we have {cpu_dma_latency, network_latency, network_throughput} as
the initial set of pm_qos parameters.
The infrastructure exposes multiple misc device nodes one per implemented
parameter. The set of parameters implement is defined by pm_qos_power_init()
and pm_qos_params.h. This is done because having the available parameters
being runtime configurable or changeable from a driver was seen as too easy to
abuse.
For each parameter a list of performance requirements is maintained along with
an aggregated target value. The aggregated target value is updated with
changes to the requirement list or elements of the list. Typically the
aggregated target value is simply the max or min of the requirement values
held in the parameter list elements.
>From kernel mode the use of this interface is simple:
pm_qos_add_requirement(param_id, name, target_value):
Will insert a named element in the list for that identified PM_QOS
parameter with the target value. Upon change to this list the new target is
recomputed and any registered notifiers are called only if the target value
is now different.
pm_qos_update_requirement(param_id, name, new_target_value):
Will search the list identified by the param_id for the named list element
and then update its target value, calling the notification tree if the
aggregated target is changed. with that name is already registered.
pm_qos_remove_requirement(param_id, name):
Will search the identified list for the named element and remove it, after
removal it will update the aggregate target and call the notification tree
if the target was changed as a result of removing the named requirement.
>From user mode:
Only processes can register a pm_qos requirement. To provide for
automatic cleanup for process the interface requires the process to register
its parameter requirements in the following way:
To register the default pm_qos target for the specific parameter, the
process must open one of /dev/[cpu_dma_latency, network_latency,
network_throughput]
As long as the device node is held open that process has a registered
requirement on the parameter. The name of the requirement is
"process_<PID>" derived from the current->pid from within the open system
call.
To change the requested target value the process needs to write a s32
value to the open device node. This translates to a
pm_qos_update_requirement call.
To remove the user mode request for a target value simply close the device
node.
[akpm@linux-foundation.org: fix warnings]
[akpm@linux-foundation.org: fix build]
[akpm@linux-foundation.org: fix build again]
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: mark gross <mgross@linux.intel.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Jaroslav Kysela <perex@suse.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Arjan van de Ven <arjan@infradead.org>
Cc: Venki Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Adam Belay <abelay@novell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Smack is the Simplified Mandatory Access Control Kernel.
Smack implements mandatory access control (MAC) using labels
attached to tasks and data containers, including files, SVIPC,
and other tasks. Smack is a kernel based scheme that requires
an absolute minimum of application support and a very small
amount of configuration data.
Smack uses extended attributes and
provides a set of general mount options, borrowing technics used
elsewhere. Smack uses netlabel for CIPSO labeling. Smack provides
a pseudo-filesystem smackfs that is used for manipulation of
system Smack attributes.
The patch, patches for ls and sshd, a README, a startup script,
and x86 binaries for ls and sshd are also available on
http://www.schaufler-ca.com
Development has been done using Fedora Core 7 in a virtual machine
environment and on an old Sony laptop.
Smack provides mandatory access controls based on the label attached
to a task and the label attached to the object it is attempting to
access. Smack labels are deliberately short (1-23 characters) text
strings. Single character labels using special characters are reserved
for system use. The only operation applied to Smack labels is equality
comparison. No wildcards or expressions, regular or otherwise, are
used. Smack labels are composed of printable characters and may not
include "/".
A file always gets the Smack label of the task that created it.
Smack defines and uses these labels:
"*" - pronounced "star"
"_" - pronounced "floor"
"^" - pronounced "hat"
"?" - pronounced "huh"
The access rules enforced by Smack are, in order:
1. Any access requested by a task labeled "*" is denied.
2. A read or execute access requested by a task labeled "^"
is permitted.
3. A read or execute access requested on an object labeled "_"
is permitted.
4. Any access requested on an object labeled "*" is permitted.
5. Any access requested by a task on an object with the same
label is permitted.
6. Any access requested that is explicitly defined in the loaded
rule set is permitted.
7. Any other access is denied.
Rules may be explicitly defined by writing subject,object,access
triples to /smack/load.
Smack rule sets can be easily defined that describe Bell&LaPadula
sensitivity, Biba integrity, and a variety of interesting
configurations. Smack rule sets can be modified on the fly to
accommodate changes in the operating environment or even the time
of day.
Some practical use cases:
Hierarchical levels. The less common of the two usual uses
for MLS systems is to define hierarchical levels, often
unclassified, confidential, secret, and so on. To set up smack
to support this, these rules could be defined:
C Unclass rx
S C rx
S Unclass rx
TS S rx
TS C rx
TS Unclass rx
A TS process can read S, C, and Unclass data, but cannot write it.
An S process can read C and Unclass. Note that specifying that
TS can read S and S can read C does not imply TS can read C, it
has to be explicitly stated.
Non-hierarchical categories. This is the more common of the
usual uses for an MLS system. Since the default rule is that a
subject cannot access an object with a different label no
access rules are required to implement compartmentalization.
A case that the Bell & LaPadula policy does not allow is demonstrated
with this Smack access rule:
A case that Bell&LaPadula does not allow that Smack does:
ESPN ABC r
ABC ESPN r
On my portable video device I have two applications, one that
shows ABC programming and the other ESPN programming. ESPN wants
to show me sport stories that show up as news, and ABC will
only provide minimal information about a sports story if ESPN
is covering it. Each side can look at the other's info, neither
can change the other. Neither can see what FOX is up to, which
is just as well all things considered.
Another case that I especially like:
SatData Guard w
Guard Publish w
A program running with the Guard label opens a UDP socket and
accepts messages sent by a program running with a SatData label.
The Guard program inspects the message to ensure it is wholesome
and if it is sends it to a program running with the Publish label.
This program then puts the information passed in an appropriate
place. Note that the Guard program cannot write to a Publish
file system object because file system semanitic require read as
well as write.
The four cases (categories, levels, mutual read, guardbox) here
are all quite real, and problems I've been asked to solve over
the years. The first two are easy to do with traditonal MLS systems
while the last two you can't without invoking privilege, at least
for a while.
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Cc: Joshua Brindle <method@manicmethod.com>
Cc: Paul Moore <paul.moore@hp.com>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: James Morris <jmorris@namei.org>
Cc: "Ahmed S. Darwish" <darwish.07@gmail.com>
Cc: Andrew G. Morgan <morgan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Though the lower_zone_protection was changed to lowmem_reserve_ratio, the
document has been not changed. The lowmem_reserve_ratio seems quite hard
to estimate, but there is no guidance. This patch is to change document
for it.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andrea Arcangeli <andrea@cpushare.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add vm.highmem_is_dirtyable toggle
A 32 bit machine with HIGHMEM64 enabled running DCC has an MMAPed file of
approximately 2Gb size which contains a hash format that is written
randomly by the dbclean process. On 2.6.16 this process took a few
minutes. With lowmem only accounting of dirty ratios, this takes about 12
hours of 100% disk IO, all random writes.
Include a toggle in /proc/sys/vm/highmem_is_dirtyable which can be set to 1 to
add the highmem back to the total available memory count.
[akpm@linux-foundation.org: Fix the CONFIG_DETECT_SOFTLOCKUP=y build]
Signed-off-by: Bron Gondwana <brong@fastmail.fm>
Cc: Ethan Solomita <solo@google.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: WU Fengguang <wfg@mail.ustc.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Use drivers/gpio/pca9539.c instead.
Signed-off-by: eric miao <eric.miao@marvell.com>
Acked-by: Ben Gardner <bgardner@wabtec.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Update Documentation/gpio.txt, primarily to include the new "gpiolib"
infrastructure.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Eric Miao <eric.miao@marvell.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ben Gardner <bgardner@wabtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Remove kio_addr_t, and replace it with unsigned int. No known architecture
needs more than 32 bits for IO addresses and ports and having a separate type
for it is just messy.
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86: (78 commits)
x86: fix RTC lockdep warning: potential hardirq recursion
x86: cpa, micro-optimization
x86: cpa, clean up code flow
x86: cpa, eliminate CPA_ enum
x86: cpa, cleanups
x86: implement gbpages support in change_page_attr()
x86: support gbpages in pagetable dump
x86: add gbpages support to lookup_address
x86: add pgtable accessor functions for gbpages
x86: add PUD_PAGE_SIZE
x86: add feature macros for the gbpages cpuid bit
x86: switch direct mapping setup over to set_pte
x86: fix page-present check in cpa_flush_range
x86: remove cpa warning
x86: remove now unused clear_kernel_mapping
x86: switch pci-gart over to using set_memory_np() instead of clear_kernel_mapping()
x86: cpa selftest, skip non present entries
x86: CPA fix pagetable split
x86: rename LARGE_PAGE_SIZE to PMD_PAGE_SIZE
x86: cpa, fix lookup_address
...
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Signed-off-by: Rob Landley <rob@landley.net>
Cc: Vojtech Pavlik <vojtech@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus: (25 commits)
virtio: balloon driver
virtio: Use PCI revision field to indicate virtio PCI ABI version
virtio: PCI device
virtio_blk: implement naming for vda-vdz,vdaa-vdzz,vdaaa-vdzzz
virtio_blk: Dont waste major numbers
virtio_blk: provide getgeo
virtio_net: parametrize the napi_weight for virtio receive queue.
virtio: free transmit skbs when notified, not on next xmit.
virtio: flush buffers on open
virtnet: remove double ether_setup
virtio: Allow virtio to be modular and used by modules
virtio: Use the sg_phys convenience function.
virtio: Put the virtio under the virtualization menu
virtio: handle interrupts after callbacks turned off
virtio: reset function
virtio: populate network rings in the probe routine, not open
virtio: Tweak virtio_net defines
virtio: Net header needs hdr_len
virtio: remove unused id field from struct virtio_blk_outhdr
virtio: clarify NO_NOTIFY flag usage
...
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A reset function solves three problems:
1) It allows us to renegotiate features, eg. if we want to upgrade a
guest driver without rebooting the guest.
2) It gives us a clean way of shutting down virtqueues: after a reset,
we know that the buffers won't be used by the host, and
3) It helps the guest recover from messed-up drivers.
So we remove the ->shutdown hook, and the only way we now remove
feature bits is via reset.
We leave it to the driver to do the reset before it deletes queues:
the balloon driver, for example, needs to chat to the host in its
remove function.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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The other side (host) can set the NO_NOTIFY flag as an optimization,
to say "no need to kick me when you add things". Make it clear that
this is advisory only; especially that we should always notify when
the ring is full.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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Previously we used a type/len pair within the config space, but this
seems overkill. We now simply define a structure which represents the
layout in the config space: the config space can now only be extended
at the end.
The main driver-visible changes:
1) We indicate what fields are present with an explicit feature bit.
2) Virtqueues are explicitly numbered, and not in the config space.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: (79 commits)
Jesper Juhl is the new trivial patches maintainer
Documentation: mention email-clients.txt in SubmittingPatches
fs/binfmt_elf.c: spello fix
do_invalidatepage() comment typo fix
Documentation/filesystems/porting fixes
typo fixes in net/core/net_namespace.c
typo fix in net/rfkill/rfkill.c
typo fixes in net/sctp/sm_statefuns.c
lib/: Spelling fixes
kernel/: Spelling fixes
include/scsi/: Spelling fixes
include/linux/: Spelling fixes
include/asm-m68knommu/: Spelling fixes
include/asm-frv/: Spelling fixes
fs/: Spelling fixes
drivers/watchdog/: Spelling fixes
drivers/video/: Spelling fixes
drivers/ssb/: Spelling fixes
drivers/serial/: Spelling fixes
drivers/scsi/: Spelling fixes
...
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I was struggling to get my email-client no to mangle my patch files,
and I didn't find enough information in the SubmittingPatches file.
By looking for more information on the web, I eventually found the
email-clients.txt file, and it answered all my needs
This patch adds a reference to email-clients.txt in SubmittingPatches,
and Mozilla related information which is no longer accurate
(as opposed to the details found in email-clients.txt).
This should be helpful for people sending their first patches,
or not sending patches on a frequent basis.
Signed-off-by: Michael Opdenacker <michael@free-electrons.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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typo fix and whitespace cleanup
Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Use the normal, expected mountpoint in the relay(fs) example
for debugfs.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Just a little whitespace cleanup patch for Documentation/BUG-HUNTING
Signed-off-by: Clemens Koller <clemens.koller@anagramm.de>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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There's a missing field in the /proc/$PID/stat output documented in
Documentation/filesystems/proc.txt.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Signed-off-by: Masatake YAMATO <jet@gyve.org>
Acked-by: Joel Becker <Joel.Becker@oracle.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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My first guess for "fujitsu" was it might be related to the
fujitsu-laptop.c driver...
Move the frv directory one level up since frv is the name of the
architecture in the Linux kernel.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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After seeing the filename I'd have expected something about the
implementation of SMP in the Linux kernel - not some notes on kernel
configuration and building trivialities noone would search at this
place.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Alan Cox <alan@redhat.com>
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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This is a documentation followup to 2e591bbc0d563e12f5a260fbbca0df7d5810910e
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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Signed-off-by: Denis Cheng <crquan@gmail.com>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
Driver core: Remove unneeded get_{device,driver}() calls.
Driver core: Update some prototypes in platform.txt
driver core: convert to use class_find_device api
PM: Export device_pm_schedule_removal
nozomi: finish constification
nozomi: constify driver
nozomi driver update
Add ja_JP translation of stable_kernel_rules.txt
kobject: kerneldoc comment fix
kobject: Always build in kernel/ksysfs.o.
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Just make these match the actual code.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Contents are reviewed by Japanese translation community called "JF".
Thanks a lot!
Singed-off-by: Tsugikazu Shibata <tshibata@ab.jp.nec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Documentation/ide/ChangeLog.ide-tape.1995-2002
Also, cleanup whitespace and update comments.
Bart:
- remove reference to drivers/block/ide.c
- move driver documentation to Documentation/ide/ide-tape.txt
Signed-off-by: Borislav Petkov <bbpetkov@yahoo.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* git://git.infradead.org/battery-2.6:
apm_power: check I.intval for zero value, we use it as the divisor
MAINTAINERS: remove kernel-discuss@handhelds.org list
pda_power: implement polling
pda_power: various cleanups
apm_power: support using VOLTAGE_* properties for apm calculations
pda_power: add suspend/resume support
power_supply: add few more values and props
pda_power: only register available psu
power: fix incorrect unregistration in power_supply_create_attrs error path
power: remove POWER_SUPPLY_PROP_CAPACITY_LEVEL
[BATTERY] power_supply_leds: use kasprintf
[BATTERY] Every file should include the headers containing the prototypes for its global functions.
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Add LiMn (one of the most common for small non-rechargable batteries)
battery technology and voltage_min/_max properties support.
Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Anton Vorontsov <cbou@mail.ru>
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The CAPACITY_LEVEL stuff defines various levels of charge; however, what
is the difference between them? What differentiates between HIGH and NORMAL,
LOW and CRITICAL, etc?
As it appears that these are fairly arbitrary, we end up making such policy
decisions in the kernel (or in hardware). This is the sort of decision that
should be made in userspace, not in the kernel.
If the hardware does not support _CAPACITY and it cannot be easily calculated,
then perhaps the driver should register a custom CAPACITY_LEVEL attribute;
however, userspace should not become accustomed to looking for such a thing,
and we should certainly not encourage drivers to provide CAPACITY_LEVEL
stubs.
The following removes support for POWER_SUPPLY_PROP_CAPACITY_LEVEL. The
OLPC battery driver is the only driver making use of this, so it's
removed from there as well.
Signed-off-by: Andres Salomon <dilinger@debian.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'suspend' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (38 commits)
suspend: cleanup reference to swsusp_pg_dir[]
PM: Remove obsolete /sys/devices/.../power/state docs
Hibernation: Invoke suspend notifications after console switch
Suspend: Invoke suspend notifications after console switch
Suspend: Clean up suspend_64.c
Suspend: Add config option to disable the freezer if architecture wants that
ACPI: Print message before calling _PTS
ACPI hibernation: Call _PTS before suspending devices
Hibernation: Introduce begin() and end() callbacks
ACPI suspend: Call _PTS before suspending devices
ACPI: Separate disabling of GPEs from _PTS
ACPI: Separate invocations of _GTS and _BFS from _PTS and _WAK
Suspend: Introduce begin() and end() callbacks
suspend: fix ia64 allmodconfig build
ACPI: clear GPE earily in resume to avoid warning
Suspend: Clean up Kconfig (V2)
Hibernation: Clean up Kconfig (V2)
Hibernation: Update messages
Suspend: Use common prefix in messages
Hibernation: Remove unnecessary variable declaration
...
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The /sys/devices/.../power/state files have been gone for a while
now, but I just noticed some documentation that still refers to
them. (Fortunately described as DEPRECATED and WILL REMOVE).
Time to remove that obsolete documentation too ...
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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The ACPI 1.0 specification wants us to put devices into low power
states after executing the _PTS global control method, while ACPI
2.0 and later want us to do that in the reverse order. The current
suspend code follows ACPI 2.0 in that respect which causes some
ACPI 1.0x systems to hang during suspend (ref.
http://bugzilla.kernel.org/show_bug.cgi?id=9528).
Make the suspend code execute _PTS before putting devices into low
power states (ie. in accordance with ACPI 1.0x) and provide a command
line option to override the default if need be.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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Update the suspend/hibernation debugging and testing documentation to describe
the newly introduced testing facilities.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
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Add PM_RESTORE_PREPARE and PM_POST_RESTORE notifiers to the PM core, to be used
in analogy with the existing PM_HIBERNATION_PREPARE and PM_POST_HIBERNATION
notifiers.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Len Brown <len.brown@intel.com>
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Move the definitions of hibernation ioctls to a separate header file in
include/linux, which can be exported to the user space.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
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Three ioctl numbers belonging to the hibernation userland interface,
SNAPSHOT_ATOMIC_SNAPSHOT, SNAPSHOT_AVAIL_SWAP, SNAPSHOT_GET_SWAP_PAGE,
are defined in a wrong way (eg. not portable). Provide new ioctl numbers for
these ioctls and mark the existing ones as deprecated.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
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Mark the SNAPSHOT_SET_SWAP_FILE ioctl belonging to the hibernation userland
interface as deprecated.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
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Modify the hibernation userland interface by adding two new ioctls to it,
SNAPSHOT_PLATFORM_SUPPORT and SNAPSHOT_POWER_OFF, that can be used,
respectively, to switch the hibernation platform support on/off and to make the
kernel transition the system to the hibernation state (eg. ACPI S4) using the
platform (eg. ACPI) driver.
These ioctls are intended to replace the misdesigned SNAPSHOT_PMOPS ioctl,
which from now is regarded as obsolete and will be removed in the future.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
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Add a new ioctl, SNAPSHOT_GET_IMAGE_SIZE, returning the size of the (just
created) hibernation image, to the hibernation userland interface.
This ioctl is necessary so that the userland utilities using the interface need
not access the hibernation image header, owned by the kernel, in order to obtain
the size of the image.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Len Brown <len.brown@intel.com>
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