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Update documentation for the hw_random support to be current:
- Documentation/hw_random.txt has been updated to reflect the
current code: it's a framework now, a "core" with a small
sysfs interface, that hardware-specific drivers plug in to.
Text specific to Intel hardware is now at the end.
- Kconfig now references the Documentation/hw_random.txt file
and better explains what this really does.
Both chunks of documentation now higlight the fact that the kernel entropy
pool is maintained by "rngd", and this driver has nothing directly to do with
that important task.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Provide example for memmap exclude option (it is slightly strange and
non-trivial) and provide nice small HOWTO for people with bad memory.
Signed-off-by: Jan-Simon Moeller <dl9pf@gmx.de>
Signed-off-by: Pavel Machek <pavel@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This reverts commit d48567dd43868b3d2e1fcc33ee76dc2d38a1ddeb.
Borislav is working on ide-tape "light" version instead.
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Mark "hdx=remap" and "hdx=remap63" kernel parameters as obsoleted
(they are layering violation and should be dealt with in the same
way as done by libata - device-mapper should be used instead).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Mark "hdx=[driver_name]" and "hdx=scsi" kernel parameters as obsoleted
(nowadays device-driver binding can be changed at runtime through sysfs
and it can also be dealt with using per device driver parameters).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* "hdx=cyls,heads,sects,wpcom,irq" should be "hdx=cyls,heads,sects".
* "hdx=" is for "x" from 'a' to 'u', "idex=" is for "x" from '0' to '9'.
* "idex=noautotune" is long gone.
* Obsoleted "ide0=" parameters were already removed from the documentation.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Implement support for the E-Ink Metronome controller. It provides an mmapable
interface to the controller using defio support. It was tested with a gumstix
pxa255 with Vizplex media using Xfbdev and various X clients such as xeyes,
xpdf, xloadimage.
This patch also fixes the following bug: Defio would cause a hang on write
access to the framebuffer as the page fault would be called ad-infinitum. It
fixes fb_defio by setting the mapping to be used by page_mkclean.
Signed-off-by: Jaya Kumar <jayakumar.lkml@gmail.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
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/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: ALPS - fix forward/back buttons reversed on Acer 5520-5290
Input: ALPS - put secondary device in proper place in sysfs
Input: wacom - add support for Bamboo1, BambooFun, and Cintiq 12WX
Input: document i8042.noloop
Input: add keyboard notifier documentation
Input: ads7846 - fix uninitialized var warning
Input: i8042 - add SNI RM support
Input: i8042 - add Lenovo 3000 N100 to nomux blacklist
Input: i8042 - fix warning on non-x86 builds
Input: cobalt_btns - assorted fixes
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no longer working for some time.
A driver that had been marked as BROKEN for such a long time seems to be
unlikely to be revived in the forseeable future.
But if anyone wants to ever revive this driver, the code is still present in
the older kernel releases.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Alan Cox <alan@redhat.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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This essentially reverts commit 71fc47a9adf8ee89e5c96a47222915c5485ac437
("ACPI: basic initramfs DSDT override support"), because the code simply
isn't ready.
It did ugly things to the init sequence to populate the rootfs image
early, but that just ended up showing other problems with the whole
approach. The fact is, the VFS layer simply isn't initialized this
early, and the relevant ACPI code should either run much later, or this
shouldn't be done at all.
For 2.6.25, we'll just pick the latter option. We can revisit this
concept later if necessary.
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: Tilman Schmidt <tilman@imap.cc>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Eric Piel <eric.piel@tremplin-utc.net>
Cc: Len Brown <len.brown@intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Markus Gaugusch <dsdt@gaugusch.at>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Document 'noloop' kernel parameter of i8042 controller driver.
Pointed out in #10236.
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
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Document the keyboard notifier.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
SIgned-off-by: Dmitry Torokhov <dtor@mail.ru>
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Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Move 00-INDEX entries to power/00-INDEX (and add entry for
pm_qos_interface.txt).
Update references to moved filenames.
Fix some trailing whitespace.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
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Move laptop-mode.txt into the laptops/ sub-directory to consolidate
laptop doc files there.
Update references to the file's location.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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The mail LED name for acer-wmi currently hardcodes in the colour as green.
This is wrong, since many of the newer laptops now come with an orange
LED, and we have no way of telling what colour is used on a given system.
Also, rename the mail LED to be inline with the current recommendations of
the LED class documentation.
Signed-off-by: Carlos Corbacho <carlos@strangeworlds.co.uk>
Signed-off-by: Len Brown <len.brown@intel.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB:Update mailing list information in documentation
USB: fix ehci unlink regressions
USB: new ftdi_sio device id
USB: Remove __KERNEL__ check from non-exported gadget.h.
USB: g_printer.h does not need to be "unifdef"ed.
USB: fsl_usb2_udc: fix broken Kconfig
USB: option: add novatel device ids
USB: usbaudio: handle kcalloc failure
USB: cypress_m8: add UPS Powercom (0d9f:0002)
USB: drivers/usb/storage/sddr55.c: fix uninitialized var warnings
USB: fix usb-serial generic recursive lock
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* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest: Do not append space to guests kernel command line
lguest: Revert 1ce70c4fac3c3954bd48c035f448793867592bc0, fix real problem.
lguest: Sanitize the lguest clock.
lguest: fix __get_vm_area usage.
lguest: make sure cpu is initialized before accessing it
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I have found a very small typo in Documentation/scheduler/sched-stats.txt.
See the end of this mail.
Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This macro is used to define tables, not to declare them.
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The lguest launcher appends a space to the kernel command line (if kernel
arguments are specified on its command line). This space is unneeded. More
importantly, this appended space will make Red Hat's nash script interpreter
(used in a Fedora style initramfs) add an empty argument to init's command
line. This empty argument will make kernel arguments like "init=/bin/bash"
fail (because the shell will try to execute a script with an empty name).
This could be considered a bug in nash, but is easily fixed in the lguest
launcher too.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm
* 'slab-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm:
slub: fix typo in Documentation/vm/slub.txt
slab: NUMA slab allocator migration bugfix
slub: Do not cross cacheline boundaries for very small objects
slab - use angle brackets for include of kmalloc_sizes.h
slab numa fallback logic: Do not pass unfiltered flags to page allocator
slub statistics: Fix check for DEACTIVATE_REMOTE_FREES
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Fix all references to Documentation/ide/ide.txt.
Add/update ide/00-INDEX file.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Cleanup some of Documentation directory:
Move Documentation/ide.txt to the ide/ sub-directory.
Fix trailing whitespace while there.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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slub_debug=,dentry is correct, not dentry_cache.
Signed-off-by: Itaru Kitayama <i-kitayama@ap.jp.nec.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: (27 commits)
[SCSI] mpt fusion: don't oops if NumPhys==0
[SCSI] iscsi class: regression - fix races with state manipulation and blocking/unblocking
[SCSI] qla4xxx: regression - add start scan callout
[SCSI] qla4xxx: fix host reset dpc race
[SCSI] tgt: fix build errors when dprintk is defined
[SCSI] tgt: set the data length properly
[SCSI] tgt: stop zero'ing scsi_cmnd
[SCSI] ibmvstgt: set up scsi_host properly before __scsi_alloc_queue
[SCSI] docbook: fix fusion source files
[SCSI] docbook: fix scsi source file
[SCSI] qla2xxx: Update version number to 8.02.00-k9.
[SCSI] qla2xxx: Correct usage of inconsistent timeout values while issuing ELS commands.
[SCSI] qla2xxx: Correct discrepancies during OVERRUN handling on FWI2-capable cards.
[SCSI] qla2xxx: Correct needless clean-up resets during shutdown.
[SCSI] arcmsr: update version and changelog
[SCSI] ps3rom: disable clustering
[SCSI] ps3rom: fix wrong resid calculation bug
[SCSI] mvsas: fix phy sas address
[SCSI] gdth: fix to internal commands execution
[SCSI] gdth: bugfix for the at-exit problems
...
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* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6:
pci: hotplug: pciehp: fix error code path in hpc_power_off_slot
PCI: Add DECLARE_PCI_DEVICE_TABLE macro
PCI: fix up error messages for pci_bus registering
PCI: fix section mismatch warning in pci_scan_child_bus
PCI: consolidate duplicated MSI enable functions
PCI: use dev_printk in quirk messages
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Rename Memory Controller to Memory Resource Controller. Reflect the same
changes in the CONFIG definition for the Memory Resource Controller. Group
together the config options for Resource Counters and Memory Resource
Controller.
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Move kprobes examples from Documentation/kprobes.txt to under samples/.
Patch originally by Randy Dunlap.
o Updated the patch to apply on 2.6.25-rc3
o Modified examples code to build on multiple architectures. Currently,
the kprobe and jprobe examples code works for x86 and powerpc
o Cleaned up unneeded #includes
o Cleaned up Kconfig per Sam Ravnborg's suggestions to fix build break
on archs that don't have kretprobes
o Implemented suggestions by Mathieu Desnoyers on CONFIG_KRETPROBES
o Included Andrew Morton's cleanup based on x86-git
o Modified kretprobe_example to act as a arch-agnostic module to
determine routine execution times:
Use 'modprobe kretprobe_example func=<func_name>' to determine
execution time of func_name in nanoseconds.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add a <linux/gpio.h> defining fail/warn stubs for GPIO calls on platforms that
don't support the GPIO programming interface. That includes the arch-specific
implementation glue otherwise.
This facilitates a new model for GPIO usage: drivers that can use GPIOs if
they're available, but don't require them. One example of such a driver is
NAND driver for various FreeScale chips. On platforms update with GPIO
support, they can be used instead of a worst-case delay to verify that the
BUSY signal is off.
(Also includes a couple minor unrelated doc updates.)
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The memory controller has a requirement that while writing values, we need
to use echo -n. This patch fixes the problem and makes the UI more consistent.
Signed-off-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The definitions of struct pci_device_id arrays should generally follow
the same pattern across the entire kernel. This macro defines this
array as const and puts it into the __devinitconst section.
There are currently many definitions scattered about the kernel that
omit the __devinitdata modifier despite the documentation stating that
it should always be there. These definitions really also should have
been const, which wasn't possible before but has become so with the
addition of the __devinitconst attribute.
Furthermore, there are definitions that use "const" and __devinitdata,
which is explicitly wrong but the compiler doesn't catch section
mismatches if there's only one such one case in the module (which is
often the case).
Adding the __devinitconst modifier where there was nothing before buys
us memory. Adding the const modifier gives the compiler a chance to do
its thing. Changing __devinitdata to __devinitconst where it was wrong
actually fixes some compiler errors in older (mid-release) kernels that
were patched over by "removing" the section attribute altogether (which
wastes memory).
This macro makes it pretty difficult to get this definition wrong in
the future...
Signed-off-by: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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kernel-doc for block/:
- add missing parameters
- fix one function's parameter list (remove blank line)
- add 2 source files to docbook for non-exported kernel-doc functions
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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The fix up from Daniel Drake for replacing GFP_DMA with something
more sensible has gone in here:
commit 69e562c234440fb7410877b5b24f4b29ef8521d1
Author: Daniel Drake <dsd@gentoo.org>
Date: Wed Feb 20 13:29:05 2008 +0000
[SCSI] arcmsr: fix message allocation
add a change log and update the version for this.
Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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delay the removal of this symbol export by one more kernel release,
giving external modules such as VirtualBox a chance to stop using it.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6:
ide: remove stale comments from ide-dma.c (take 2)
ide: remove ide-tape documentation from Documentation/ide.txt
qd65xx: remove commented out code
ide-tape: schedule driver for removal after 6 months
ide-disk: add missing printk() KERN_* levels
ide: fix sparse warning about shadowing 'flags' symbol
ide-cd: fix CD/DVD burning
ide-cd: fix 'ireason' handling for REQ_TYPE_ATA_PC requests
qd65xx: fix setup of QD6580 Control register
ide: skip probing port if "hdx=noprobe" was used for both devices on it
ide: remove redundant comment from ide_unregister()
hpt366: fix section mismatch warnings
ide-cd: Enable audio play quirk for Optiarc DVD RW AD-5200A drive
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More complete documentation is available in Documentation/ide/ide-tape.txt.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Skip probing port if "hdx=noprobe" parameter was used for both devices on it.
* Obsolete "idex=noprobe" parameter - it only works for ide_generic, cmd640
and PCI hosts in Compatibility mode (on alpha/x86/ia64/m32r/mips/ppc32).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
firewire: fix NULL pointer deref. and resource leak
Documentation: correction to debugging-via-ohci1394
ieee1394: sbp2: fix rescan-scsi-bus
firewire: fw-sbp2: fix NULL pointer deref. in scsi_remove_device
firewire: fw-sbp2: fix NULL pointer deref. in slave_alloc
firewire: fw-sbp2: (try to) avoid I/O errors during reconnect
firewire: fw-sbp2: enforce a retry of __scsi_add_device if bus generation changed
firewire: fw-sbp2: sort includes
firewire: fw-sbp2: logout and login after failed reconnect
firewire: fw-sbp2: don't add scsi_device twice
firewire: fw-sbp2: log bus_id at management request failures
firewire: fw-sbp2: wait for completion of fetch agent reset
ieee1394: sbp2: add INQUIRY delay workaround
firewire: fw-sbp2: add INQUIRY delay workaround
firewire: log GUID of new devices
firewire: fw-sbp2: don't retry login or reconnect after unplug
firewire: fix "kobject_add failed for fw* with -EEXIST"
firewire: fw-sbp2: fix logout before login retry
firewire: fw-sbp2: unsigned int vs. unsigned
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Add the Intel ICH10 SMBus Controller DeviceID's and updates
Tolapai support.
Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
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(sorry for being offtpoic, but while experts are here...)
A "typical" implementation of atomic_add_unless() can return 0 immediately
after the first atomic_read() (before doing cmpxchg). In that case it doesn't
provide any barrier semantics. See include/asm-ia64/atomic.h as an example.
We should either change the implementation, or fix the docs.
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- remove trailing " Bytes"s in the demonstration
- remove section 4.4 (feature control_type has been removed)
- fix reference section
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Misc fixes and updates, make the doc consistent with current cgroup
implementation.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Current implementation of cpuset track N_HIGH_MEMORY instead N_MEMORY.
(N_MEMORY doesn't exist in current implementation)
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Paul Jackson <pj@sgi.com>
Cc: Christoph Lameter <clameter@sgi.com>
Cc: Paul Menage <menage@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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During the last step of hibernation in the "platform" mode (with the
help of ACPI) we use the suspend code, including the devices'
->suspend() methods, to prepare the system for entering the ACPI S4
system sleep state.
But at least for some devices the operations performed by the
->suspend() callback in that case must be different from its operations
during regular suspend.
For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and
pass it to the device drivers' ->suspend() methods during the last phase
of hibernation, so that they can distinguish this case and handle it as
appropriate. Modify the drivers that handle PM_EVENT_SUSPEND in a
special way and need to handle PM_EVENT_HIBERNATE in the same way.
These changes are necessary to fix a hibernation regression related
to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488).
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Acked-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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