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2008-02-05Smack: Simplified Mandatory Access Control KernelCasey Schaufler1-0/+493
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>
2008-02-05Document lowmem_reserve_ratioYasunori Goto1-17/+63
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>
2008-02-05mm/page-writeback: highmem_is_dirtyable optionBron Gondwana2-3/+19
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>
2008-02-05deprecate obsolete pca9539 drivereric miao1-0/+3
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>
2008-02-05gpiolib: update Documentation/gpio.txtDavid Brownell1-12/+121
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>
2008-02-05pcmcia: replace kio_addr_t with unsigned int everywhereOlof Johansson1-2/+2
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>
2008-02-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/x86/linux-2.6-x86Linus Torvalds1-0/+16
* 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 ...
2008-02-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linusLinus Torvalds1-77/+154
* 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 ...
2008-02-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds24-72/+38
* 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 ...
2008-02-04documentation: add Documentation/x86-64/00-INDEXRob Landley1-0/+16
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>
2008-02-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2-3/+82
* 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.
2008-02-04virtio: reset functionRusty Russell1-10/+52
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>
2008-02-04virtio: clarify NO_NOTIFY flag usageRusty Russell1-4/+5
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>
2008-02-04virtio: simplify config mechanism.Rusty Russell1-71/+105
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>
2008-02-03Documentation: mention email-clients.txt in SubmittingPatchesMichael Opdenacker1-14/+2
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>
2008-02-03Documentation/filesystems/porting fixesOliver Pinter1-3/+3
typo fix and whitespace cleanup Signed-off-by: Oliver Pinter <oliver.pntr@gmail.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03doc: use correct debugfs mountpointRandy Dunlap1-1/+1
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>
2008-02-03Documentation/BUG-HUNTING whitespace cleanupClemens Koller1-11/+11
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>
2008-02-03Documentation: missing proc/$PID/stat fieldLeonardo Chiquitto1-0/+1
There's a missing field in the /proc/$PID/stat output documented in Documentation/filesystems/proc.txt. Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03correct missing a double quote in configfs.txtMasatake YAMATO1-1/+1
Signed-off-by: Masatake YAMATO <jet@gyve.org> Acked-by: Joel Becker <Joel.Becker@oracle.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03move frv docs one level upAdrian Bunk11-2/+2
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>
2008-02-03remove Documentation/smp.txtAdrian Bunk2-24/+0
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>
2008-02-03Documentation: Clarify when module debugging actually works.Robert P. J. Day1-0/+4
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03Documentation: Remove references to dead "st0x" and "tmc8xx" parms.Robert P. J. Day1-6/+0
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03Documentation: Update to refer to correct "rcupdate" module nameRobert P. J. Day1-5/+8
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03Documentation: "decnet=" should read "decnet.addr=".Robert P. J. Day2-2/+2
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03fix typo 'the same the\>'Uwe Kleine-König1-1/+1
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-03use the newc archive format as requested by initramfsUwe Kleine-König1-1/+1
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>
2008-02-03Documentation: fix type errorDenis Cheng1-1/+1
Signed-off-by: Denis Cheng <crquan@gmail.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-02-02Driver core: Update some prototypes in platform.txtStephen Rothwell1-3/+3
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>
2008-02-02Add ja_JP translation of stable_kernel_rules.txtTsugikazu Shibata1-0/+79
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>
2008-02-02ide-tape: move historical changelog to ↵Borislav Petkov2-0/+403
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>
2008-02-02Merge git://git.infradead.org/battery-2.6Linus Torvalds1-2/+4
* 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.
2008-02-02Merge branch 'suspend' of ↵Linus Torvalds6-174/+216
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 ...
2008-02-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds1-36/+1
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/pci-2.6: (64 commits) PCI: make pci_bus a struct device PCI: fix codingstyle issues in include/linux/pci.h PCI: fix codingstyle issues in drivers/pci/pci.h PCI: PCIE ASPM support PCI: Fix fakephp deadlock PCI: modify SB700 SATA MSI quirk PCI: Run ACPI _OSC method on root bridges only PCI ACPI: AER driver should only register PCIe devices with _OSC PCI ACPI: Added a function to register _OSC with only PCIe devices. PCI: constify function pointer tables PCI: Convert drivers/pci/proc.c to use unlocked_ioctl pciehp: block new requests from the device before power off pciehp: workaround against Bad DLLP during power off pciehp: wait for 1000ms before LED operation after power off PCI: Remove pci_enable_device_bars() from documentation PCI: Remove pci_enable_device_bars() PCI: Remove users of pci_enable_device_bars() PCI: Add pci_enable_device_{io,mem} intefaces PCI: avoid save the same type of cap multiple times PCI: correctly initialize a structure for pcie_save_pcix_state() ...
2008-02-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6Linus Torvalds4-16/+627
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (128 commits) USB: fix codingstyle issues in drivers/usb/core/*.c USB: fix codingstyle issues in drivers/usb/core/message.c USB: fix codingstyle issues in drivers/usb/core/hcd-pci.c USB: fix codingstyle issues in drivers/usb/core/devio.c USB: fix codingstyle issues in drivers/usb/core/devices.c USB: fix codingstyle issues in drivers/usb/core/*.h USB: fix codingstyle issues in include/linux/usb/ USB: fix codingstyle issues in include/linux/usb.h USB: mark USB drivers as being GPL only USB: use a real vendor and product id for root hubs USB: mount options: fix usbfs USB: Fix usb_serial_driver structure for Kobil cardreader driver. usb: ehci should use u16 for isochronous intervals usb: ehci, remove false clear-reset path USB: Use menuconfig objects usb: ohci-sm501 driver usb: dma bounce buffer support USB: last abuses of intfdata in close for usb-serial drivers USB: kl5kusb105 don't flush to logically disconnected devices USB: oti6858: cleanup ...
2008-02-02power_supply: add few more values and propsDmitry Baryshkov1-0/+4
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>
2008-02-02power: remove POWER_SUPPLY_PROP_CAPACITY_LEVELAndres Salomon1-2/+0
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>
2008-02-01PM: Remove obsolete /sys/devices/.../power/state docsDavid Brownell1-49/+0
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>
2008-02-01ACPI suspend: Call _PTS before suspending devicesRafael J. Wysocki1-0/+5
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>
2008-02-01PM: Suspend/hibernation debug documentation update (rev. 2)Rafael J. Wysocki2-72/+174
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>
2008-02-01Hibernation: Add PM_RESTORE_PREPARE and PM_POST_RESTORE notifiers (rev. 2)Alan Stern1-0/+8
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>
2008-02-01Hibernation: Introduce exportable suspend ioctls header (rev. 2)Rafael J. Wysocki1-5/+5
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>
2008-02-01Hibernation: Correct definitions of some ioctls (rev. 2)Rafael J. Wysocki1-13/+13
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>
2008-02-01Hibernation: Mark SNAPSHOT_SET_SWAP_FILE ioctl as deprecated (rev. 2)Rafael J. Wysocki1-12/+2
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>
2008-02-01Hibernation: Rework platform support ioctls (rev. 2)Rafael J. Wysocki1-18/+6
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>
2008-02-01Hibernation: Introduce SNAPSHOT_GET_IMAGE_SIZE ioctlRafael J. Wysocki1-7/+5
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>
2008-02-01PCI: Remove pci_enable_device_bars() from documentationGrant Grundler1-36/+1
Patch below removes pci_enable_device_bars() from Documentation/pci.txt . Signed-off-by: Grant Grundler <grundler@parisc-linux.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-02-02Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6Linus Torvalds2-0/+331
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (100 commits) ide: move hwif_register() call out of ide_probe_port() ide: factor out code for tuning devices from ide_probe_port() ide: move handling of I/O resources out of ide_probe_port() ide: make probe_hwif() return an error value ide: use ide_remove_port_from_hwgroup in init_irq() ide: prepare init_irq() for using ide_remove_port_from_hwgroup() ide: factor out code removing port from hwgroup from ide_unregister() ide: I/O resources are released too early in ide_unregister() ide: cleanup ide_system_bus_speed() ide: remove needless zeroing of hwgroup fields from init_irq() ide: remove unused ide_hwgroup_t fields ide_platform: remove struct hwif_prop ide: remove hwif->present manipulations from hwif_init() ide: move wait_hwif_ready() documentation in the right place ide: fix handling of busy I/O resources in probe_hwif() <linux/hdsmart.h> is not used by kernel code ide: don't include <linux/hdsmart.h> ide-floppy: cleanup header ide: update/add my Copyrights ide: delete filenames/versions from comments ...
2008-02-01USB: mark USB drivers as being GPL onlyGreg Kroah-Hartman1-16/+0
Over two years ago, the Linux USB developers stated that they believed there was no way to create a USB kernel driver that was not under the GPL. This patch moves the USB apis to enforce that decision. There are no known closed source USB drivers in the wild, so this patch should cause no problems. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>