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2007-10-10[SHAPER]: Mark for removal.Stephen Hemminger
This driver has been marked obsolete for a long time and is superseded by traffic schedulers. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET] netconsole: Support dynamic reconfiguration using configfsSatyam Sharma
Based upon initial work by Keiichi Kii <k-keiichi@bx.jp.nec.com>. This patch introduces support for dynamic reconfiguration (adding, removing and/or modifying parameters of netconsole targets at runtime) using a userspace interface exported via configfs. Documentation is also updated accordingly. Issues and brief design overview: (1) Kernel-initiated creation / destruction of kernel objects is not possible with configfs -- the lifetimes of the "config items" is managed exclusively from userspace. But netconsole must support boot/module params too, and these are parsed in kernel and hence netpolls must be setup from the kernel. Joel Becker suggested to separately manage the lifetimes of the two kinds of netconsole_target objects -- those created via configfs mkdir(2) from userspace and those specified from the boot/module option string. This adds complexity and some redundancy here and also means that boot/module param-created targets are not exposed through the configfs namespace (and hence cannot be updated / destroyed dynamically). However, this saves us from locking / refcounting complexities that would need to be introduced in configfs to support kernel-initiated item creation / destroy there. (2) In configfs, item creation takes place in the call chain of the mkdir(2) syscall in the driver subsystem. If we used an ioctl(2) to create / destroy objects from userspace, the special userspace program is able to fill out the structure to be passed into the ioctl and hence specify attributes such as local interface that are required at the time we set up the netpoll. For configfs, this information is not available at the time of mkdir(2). So, we keep all newly-created targets (via configfs) disabled by default. The user is expected to set various attributes appropriately (including the local network interface if required) and then write(2) "1" to the "enabled" attribute. Thus, netpoll_setup() is then called on the set parameters in the context of _this_ write(2) on the "enabled" attribute itself. This design enables the user to reconfigure existing netconsole targets at runtime to be attached to newly-come-up interfaces that may not have existed when netconsole was loaded or when the targets were actually created. All this effectively enables us to get rid of custom ioctls. (3) Ultra-paranoid configfs attribute show() and store() operations, with sanity and input range checking, using only safe string primitives, and compliant with the recommendations in Documentation/filesystems/sysfs.txt. (4) A new function netpoll_print_options() is created in the netpoll API, that just prints out the configured parameters for a netpoll structure. netpoll_parse_options() is modified to use that and it is also exported to be used from netconsole. Signed-off-by: Satyam Sharma <satyam@infradead.org> Acked-by: Keiichi Kii <k-keiichi@bx.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET] netconsole: Support multiple logging targetsSatyam Sharma
Based upon initial work by Keiichi Kii <k-keiichi@bx.jp.nec.com>. This patch introduces support for multiple targets, independent of CONFIG_NETCONSOLE_DYNAMIC -- this is useful even in the default case and (including the infrastructure introduced in previous patches) doesn't really add too many bytes to module text. All the complexity (and size) comes with the dynamic reconfigurability / userspace interface patch, and so it's plausible users may want to keep this enabled but that disabled (say to avoid a dependency on CONFIG_CONFIGFS_FS too). Also update documentation to mention the use of ";" separator to specify multiple logging targets in the boot/module option string. Brief overview: We maintain a target_list (and corresponding lock). Get rid of the static "default_target" and introduce allocation and release functions for our netconsole_target objects (but keeping sure to preserve previous behaviour such as default values). During init_netconsole(), ";" is used as the separator to identify multiple target specifications in the boot/module option string. The target specifications are parsed and netpolls setup. During exit, the target_list is torn down and all items released. Signed-off-by: Satyam Sharma <satyam@infradead.org> Signed-off-by: Keiichi Kii <k-keiichi@bx.jp.nec.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET] netconsole: Add some useful tips to documentationSatyam Sharma
Based upon initial work by Keiichi Kii <k-keiichi@bx.jp.nec.com>. Add some useful general-purpose tips. Also suggest solution for the frequent problem of console loglevel set too low numerically (i.e. for high priority messages only) on the sender. Signed-off-by: Satyam Sharma <satyam@infradead.org> Acked-by: Keiichi Kii <k-keiichi@bx.jp.nec.com> Acked-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10[NET]: Make NAPI polling independent of struct net_device objects.Stephen Hemminger
Several devices have multiple independant RX queues per net device, and some have a single interrupt doorbell for several queues. In either case, it's easier to support layouts like that if the structure representing the poll is independant from the net device itself. The signature of the ->poll() call back goes from: int foo_poll(struct net_device *dev, int *budget) to int foo_poll(struct napi_struct *napi, int budget) The caller is returned the number of RX packets processed (or the number of "NAPI credits" consumed if you want to get abstract). The callee no longer messes around bumping dev->quota, *budget, etc. because that is all handled in the caller upon return. The napi_struct is to be embedded in the device driver private data structures. Furthermore, it is the driver's responsibility to disable all NAPI instances in it's ->stop() device close handler. Since the napi_struct is privatized into the driver's private data structures, only the driver knows how to get at all of the napi_struct instances it may have per-device. With lots of help and suggestions from Rusty Russell, Roland Dreier, Michael Chan, Jeff Garzik, and Jamal Hadi Salim. Bug fixes from Thomas Graf, Roland Dreier, Peter Zijlstra, Joseph Fannin, Scott Wood, Hans J. Koch, and Michael Chan. [ Ported to current tree and all drivers converted. Integrated Stephen's follow-on kerneldoc additions, and restored poll_list handling to the old style to fix mutual exclusion issues. -DaveM ] Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-07sysrq docs: document sequence that actually worksPavel Machek
Document sequence of keypresses that actually works. Yes, this changed year-or-so ago. 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>
2007-10-07lockstat: documentationPeter Zijlstra
Provide some documentation for CONFIG_LOCK_STAT. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-01Add /dev/oldmem to devices.txt documentationDave Jones
Signed-off-by: Dave Jones <davej@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: <device@lanana.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-26lguest example launcher truncates block device file to 0 length on problemsChris Malley
The function should also use ftruncate64() rather than ftruncate() to prevent files over 4GB (not uncommon for a root filesystem) being zeroed. Signed-off-by: Chris Malley <mail@chrismalley.co.uk> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-24async_tx: usage documentation and developer notes (v2)Dan Williams
Changes in v2: * cleanups from Randy and Shannon Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Reviewed-by: Shannon Nelson <shannon.nelson@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2007-09-20Fix CRLF line endings in Documentation/input/iforce-protocol.txtLinus Torvalds
Emil Medve points out that this documentation file uses CRLF line endings, which means that if you use [core] autocrlf=input (which makes sense if you ever develop under Windows, for example, or if you use other broken tools) in your git config, git will always complain about the file being dirty. This removes the bogus DOS line endings, and removes whitespace at the end of line. Cc: Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-17V4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" ↵Robert P. J. Day
boot-time option Since this boot-time option was removed in commit 9ab7e323af9f9efad3e20a14faa4d947adfac381, delete the reference to it. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-17Revert "V4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" ↵Mauro Carvalho Chehab
boot-time option" This reverts commit 4730d3af625b532e3df5f091b5c8edb08f512fbf. Unfortunately, patch got mangled by a whitespace removal script. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-17Pull thinkpad into release branchLen Brown
2007-09-17ACPI: thinkpad-acpi: bump up version to 0.16Henrique de Moraes Holschuh
Name it thinkpad-acpi version 0.16 to avoid any confusion with some 0.15 thinkpad-acpi development snapshots and backports that had input layer support, but no hotkey_report_mode support. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-17ACPI: thinkpad-acpi: revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED optionHenrique de Moraes Holschuh
Revert new 2.6.23 CONFIG_THINKPAD_ACPI_INPUT_ENABLED Kconfig option because it would create a legacy we don't want to support. CONFIG_THINKPAD_ACPI_INPUT_ENABLED was added to try to fix an issue that is now moot with the addition of the netlink ACPI event report interface to the ACPI core. Now that ACPI core can send events over netlink, we can use a different strategy to keep backwards compatibility with older userspace, without the need for the CONFIG_THINKPAD_ACPI_INPUT_ENABLED games. And it arrived before CONFIG_THINKPAD_ACPI_INPUT_ENABLED made it to a stable mainline kernel, even, which is Good. This patch is in sync with some changes to thinkpad-acpi backports, that will keep things sane for userspace across different combinations of kernel versions, thinkpad-acpi backports (or the lack thereof), and userspace capabilities: Unless a module parameter is used, thinkpad-acpi will now behave in such a way that it will work well (by default) with userspace that still uses only the old ACPI procfs event interface and doesn't care for thinkpad-acpi input devices. It will also always work well with userspace that has been updated to use both the thinkpad-acpi input devices, and ACPI core netlink event interface, regardless of any module parameter. The module parameter was added to allow thinkpad-acpi to work with userspace that has been partially updated to use thinkpad-acpi input devices, but not the new ACPI core netlink event interface. To use this mode of hot key reporting, one has to specify the hotkey_report_mode=2 module parameter. The thinkpad-acpi driver exports the value of hotkey_report_mode through sysfs, as well. thinkpad-acpi backports to older kernels, that do not support the new ACPI core netlink interface, have code to allow userspace to switch hotkey_report_mode at runtime through sysfs. This capability will not be provided in mainline thinkpad-acpi as it is not needed there. Signed-off-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br> Cc: Michael S. Tsirkin <mst@dev.mellanox.co.il> Cc: Hugh Dickins <hugh@veritas.com> Cc: Richard Hughes <hughsient@gmail.com> Signed-off-by: Len Brown <len.brown@intel.com>
2007-09-15Merge branch 'upstream-linus' of ↵Linus Torvalds
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: drivers/net/pcmcia/3c589_cs: fix port configuration switcheroo sk98lin: resurrect driver ucc_geth: fix compilation mv643xx_eth: Fix tx_bytes stats calculation As struct iw_point is bi-directional payload, we should copy back the content [PATCH] bcm43xx: Fix cancellation of work queue crashes spidernet: fix interrupt reason recognition ehea: fix last_rx update ehea: propagate physical port state Fix a lock problem in generic phy code sky2: restore multicast list on resume and other ops atl1: disable broken 64-bit DMA
2007-09-15sk98lin: resurrect driverStephen Hemminger
This reverts commit e1abecc48938fbe1966ea6e78267fc673fa59295. The driver works on some hardware that skge doesn't handle yet. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-09-14V4L/DVB (6173a): Documentation: Remove reference to dead "cpia_pp=" ↵Robert P. J. Day
boot-time option Since this boot-time option was removed in commit 9ab7e323af9f9efad3e20a14faa4d947adfac381, delete the reference to it. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-14V4L/DVB (6095): ivtv: fix VIDIOC_G_ENC_INDEX flag handlingHans Verkuil
Due to a documentation bug (the type mask is 3 bits long, not 2) the wrong frame types were filled in: the B and P frame types were swapped. This bug also hid a second bug: when a capture is stopped a last entry is written into the pgm index buffer with internal type 0, denoting the end of the program. This entry wasn't ignored, instead it was accidentally returned to the caller as a P frame. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-09-13Fix this Paul Simon song's nameJean Delvare
Signed-off-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2: Fix calculation of i_blocks during truncate [PATCH] ocfs2: Fix a wrong cluster calculation. [PATCH] ocfs2: fix mount option parsing ocfs2: update docs for new features
2007-09-11fix typo in Documentation/SubmittingPatchesAndre Haupt
Signed-off-by: Andre Haupt <andre@finow14.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11Documentation/00-INDEX: notice ecryptfs.txt movedRob Landley
ecryptfs.txt moved into filesystems, make 00-INDEX follow. Signed-off-by: Rob Landley <rob@landley.net> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11ocfs2: update docs for new featuresMark Fasheh
Update documentation listing ocfs2 features to reflect the current state of the file system. Add missing descriptions for some mount options which ocfs2 supports. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2007-09-11[NET] DOC: Update networking/multiqueue.txt with correct information.Peter P Waskiewicz Jr
Updated the multiqueue.txt document to call out the correct kernel options to select to enable multiqueue. Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2007-08-31i2c-piix4: Fix SB700 PCI device IDShane Huang
We find that SB700 and SB800 use the same SMBus device ID as SB600, which is 0x4385, instead of the already submitted 0x4395. Besides removing the wrong SB700 device ID, add SB800 support to kernel, by renaming the PCI_DEVICE_ID_ATI_IXP600_SMBUS into PCI_DEVICE_ID_ATI_SBX00_SMBUS. Signed-off-by: Shane Huang <shane.huang@amd.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-25Pull events into release branchLen Brown
Conflicts: drivers/acpi/video.c Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-24Pull thermal into release branchLen Brown
2007-08-24Pull bugzilla-1641 into release branchLen Brown
2007-08-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: fix bad error path in conversion routines 9p: remove deprecated v9fs_fid_lookup_remove() 9p: update maintainers and documentation 9p: fix use after free
2007-08-23Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: PCI: Run k8t_sound_hostbridge quirk only when needed PCI: disable MSI on RX790 PCI: disable MSI on RD580 PCI: disable MSI on RS690 PCI: make pcie_get_readrq visible in pci.h PCI: lets kill the 'PCI hidden behind bridge' message pci/hotplug/cpqphp_ctrl.c: remove stale BKL use PCI: Document pci_iomap() PCI: quirk_e100_interrupt() called too early PCI: Move prototypes for pci_bus_find_capability to include/linux/pci.h
2007-08-23Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: sysfs: don't warn on removal of a nonexistent binary file HOWTO: latest lxr url address changed HOWTO: korean translation of Documentation/HOWTO Fix Off-by-one in /sys/module/*/refcnt sysfs: fix locking in sysfs_lookup() and sysfs_rename_dir()
2007-08-23ACPI: Schedule /proc/acpi/event for removalLen Brown
Schedule /proc/acpi/event for removal in 6 months. Re-name acpi_bus_generate_event() to acpi_bus_generate_proc_event() to make sure there is no confusion that it is for /proc/acpi/event only. Add CONFIG_ACPI_PROC_EVENT to allow removal of /proc/acpi/event. There is no functional change if CONFIG_ACPI_PROC_EVENT=y Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-239p: update maintainers and documentationEric Van Hensbergen
Updates to the MAINTAINERS file and documentation for 9p to point to the swik wiki versus the outdated sf.net page. Also updated some email addresses and added pointers to papers which better describe the implementation and application of the Linux 9p client. Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2007-08-22Documentation: fix getdelays.c printf bugMichael Neuling
Commit b663a79c191508f27cd885224b592a878c0ba0f6 ("taskstats: add context-switch counters") incorrectly removed a comma from a printf statement. This causes corruption in the output printing or a seg fault. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-22Document Linux Memory PolicyLee Schermerhorn
I couldn't find any memory policy documentation in the Documentation directory, so here is my attempt to document it. There's lots more that could be written about the internal design--including data structures, functions, etc. However, if you agree that this is better that the nothing that exists now, perhaps it could be merged. This will provide a baseline for updates to document the many policy patches that are currently being worked. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Christoph Lameter <clameter@sgi.com> Cc: Andi Kleen <ak@suse.de> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Acked-by: Rob Landley <rob@landley.net> Acked-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-22PCI: Document pci_iomap()Rolf Eike Beer
This useful interface is hardly mentioned anywhere in the in-tree documentation. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Tejun Heo <htejun@gmail.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22HOWTO: latest lxr url address changedQi Yong
Hello, I've noticed that in Document/HOWTO the url address: http://sosdg.org/~coywolf/lxr/ has changed to http://users.sosdg.org/~qiyong/lxr/ from the website. -- qiyong Signed-off-by: Qi Yong <qiyong@fc-cn.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22HOWTO: korean translation of Documentation/HOWTOMinchan Kim
This is a Documentation/HOWTO korean version of 2.6.23-rc1 The header is refered to a japanese's one. From: Minchan Kim <minchan.kim@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: [WATCHDOG] Add support for 1533 bridge to alim1535_wdt [WATCHDOG] Add a 00-INDEX file to Documentation/watchdog/ [WATCHDOG] Eurotechwdt.c - clean-up comments
2007-08-21ACPI: boot correctly with "nosmp" or "maxcpus=0"Len Brown
In MPS mode, "nosmp" and "maxcpus=0" boot a UP kernel with IOAPIC disabled. However, in ACPI mode, these parameters didn't completely disable the IO APIC initialization code and boot failed. init/main.c: Disable the IO_APIC if "nosmp" or "maxcpus=0" undefine disable_ioapic_setup() when it doesn't apply. i386: delete ioapic_setup(), it was a duplicate of parse_noapic() delete undefinition of disable_ioapic_setup() x86_64: rename disable_ioapic_setup() to parse_noapic() to match i386 define disable_ioapic_setup() in header to match i386 http://bugzilla.kernel.org/show_bug.cgi?id=1641 Acked-by: Andi Kleen <ak@suse.de> Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-20V4L/DVB (6016): get_dvb_firmware: update script for new location of tda10046 ↵Andreas Arens
firmware Update get_dvb_firmware script for the new location of the tda10046 firmware. The old location doesn't work anymore. Signed-off-by: Andreas Arens <ari@goron.de> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-08-16[WATCHDOG] Add a 00-INDEX file to Documentation/watchdog/Jesper Juhl
Add a 00-INDEX file to Documentation/watchdog/ Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2007-08-14ACPI: thermal: create "thermal.crt=C" bootparamLen Brown
Some hardware will malfunction at a temperature below the BIOS provided critical shutdown threshold. This hook allows moving the critical trip points down to a temperature which provokes a graceful shutdown before the hardware malfunction. http://bugzilla.kernel.org/show_bug.cgi?id=8884 WARNING: A trip-point override will not get noticed until the system delivers a temperature change event, or unless thermal zone polling is enabled. eg. "thermal.tzp=10" Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-12Pull bugzilla-8842 into release branchLen Brown
2007-08-12Pull bugzilla-3774 into release branchLen Brown
2007-08-12pull asus sony thinkpad into release branchLen Brown
2007-08-12ACPI: thermal: create "thermal.act=" to disable or override active trip pointLen Brown
thermal.act=-1 disables all active trip points in all ACPI thermal zones. thermal.act=C, where C > 0, overrides all lowest temperature active trip points in all thermal zones to C degrees Celsius. Raising this trip-point may allow you to keep your system silent up to a higher temperature. However, it will not allow you to raise the lowest temperature trip point above the next higher trip point (if there is one). Lowering this trip point may kick in the fan sooner. Note that overriding this trip-point will disable any BIOS attempts to implement hysteresis around the lowest temperature trip point. This may result in the fan starting and stopping frequently if temperature frequently crosses C. WARNING: raising trip points above the manufacturer's defaults may cause the system to run at higher temperature and shorten its life. Signed-off-by: Len Brown <len.brown@intel.com>
2007-08-12ACPI: thermal: create "thermal.nocrt" to disable critical actionsLen Brown
thermal.nocrt=1 disables actions on _CRT and _HOT ACPI thermal zone trip-points. They will be marked as <disabled> in /proc/acpi/thermal_zone/*/trip_points. There are two cases where this option is used: 1. Debugging a hot system crossing valid trip point. If your system fan is spinning at full speed, be sure that the vent is not clogged with dust. Many laptops have very fine thermal fins that are easily blocked. Check that the processor fan-sink is properly seated, has the proper thermal grease, and is really spinning. Check for fan related options in BIOS SETUP. Sometimes there is a performance vs quiet option. Defaults are generally the most conservative. If your fan is not spinning, yet /proc/acpi/fan/ has files in it, please file a Linux/ACPI bug. WARNING: you risk shortening the lifetime of your hardware if you use this parameter on a hot system. Note that this refers to all system components, including the disk drive. 2. Working around a cool system crossing critical trip point due to erroneous temperature reading. Try again with CONFIG_HWMON=n There is known potential for conflict between the the hwmon sub-system and the ACPI BIOS. If this fixes it, notify lm-sensors@lm-sensors.org and linux-acpi@vger.kernel.org Otherwise, file a Linux/ACPI bug, or notify just linux-acpi@vger.kernel.org. Signed-off-by: Len Brown <len.brown@intel.com>