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| * | sony-laptop: Small update to the Kconfig help to make people believe this ↵Mattia Dongili2007-02-13
| | | | | | | | | | | | | | | | | | | | | driver is useful. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Len Brown <len.brown@intel.com>
| * | sony-laptop: Remove /proc/acpi/sony interface and implement platform_device.Mattia Dongili2007-02-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | Rework method names list to allow an easier management of multiple values. Add myself as author/maintainer and bump the version number. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Len Brown <len.brown@intel.com>
| * | sony-laptop: create from sony_acpiMattia Dongili2007-02-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move drivers/acpi/sony_acpi.c to drivers/misc/sony-laptop.c with all the necessary configuration. The SONY_LAPTOP config option substitutes the old ACPI_SONY and is 'default n' now. Signed-off-by: Mattia Dongili <malattia@linux.it> Signed-off-by: Len Brown <len.brown@intel.com>
* | | [PATCH] Scheduled removal of SA_xxx interrupt flags fixupsThomas Gleixner2007-02-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The obsolete SA_xxx interrupt flags have been used despite the scheduled removal. Fixup the remaining users. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: Wim Van Sebroeck <wim@iguana.be> Cc: Roland Dreier <rolandd@cisco.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Greg KH <greg@kroah.com> Cc: Dave Airlie <airlied@linux.ie> Cc: James Simmons <jsimmons@infradead.org> 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>
* | | [PATCH] mark struct file_operations const 5Arjan van de Ven2007-02-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] proc: remove useless (and buggy) ->nlink settingsAlexey Dobriyan2007-02-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Bug: pnx8550 code creates directory but resets ->nlink to 1. create_proc_entry() et al will correctly set ->nlink for you. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Corey Minyard <minyard@acm.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Greg KH <greg@kroah.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] IOC3/IOC4: PCI mem space resourcesBrent Casavant2007-02-11
| |/ |/| | | | | | | | | | | | | | | | | | | | | | | The SGI IOC3 and IOC4 PCI devices implement memory space apertures, not I/O space apertures. Use the appropriate region management functions. Signed-off-by: Brent Casavant <bcasavan@sgi.com> Cc: Pat Gefre <pfg@sgi.com> Cc: Stanislaw Skowronek <skylark@linux-mips.org> Cc: Brent Casavant <bcasavan@sgi.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] TIFM should depend on PCI - TIFM_CORE leads to use of pci primitivesAl Viro2007-02-09
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] assigning enum constant to char * is vile, even if it happens to be 0Al Viro2007-02-09
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'release' of ↵Linus Torvalds2007-02-07
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (140 commits) ACPICA: reduce table header messages to fit within 80 columns asus-laptop: merge with ACPICA table update ACPI: bay: Convert ACPI Bay driver to be compatible with sysfs update. ACPI: bay: new driver is EXPERIMENTAL ACPI: bay: make drive_bays static ACPI: bay: make bay a platform driver ACPI: bay: remove prototype procfs code ACPI: bay: delete unused variable ACPI: bay: new driver adding removable drive bay support ACPI: dock: check if parent is on dock ACPICA: fix gcc build warnings Altix: Add ACPI SSDT PCI device support (hotplug) Altix: ACPI SSDT PCI device support ACPICA: reduce conflicts with Altix patch series ACPI_NUMA: fix HP IA64 simulator issue with extended memory domain ACPI: fix HP RX2600 IA64 boot ACPI: build fix for IBM x440 - CONFIG_X86_SUMMIT ACPICA: Update version to 20070126 ACPICA: Fix for incorrect parameter passed to AcpiTbDeleteTable during table load. ACPICA: Update copyright to 2007. ...
| * | asus-laptop: merge with ACPICA table updateLen Brown2007-02-03
| | | | | | | | | | | | | | | | | | | | | No longer need a buffer for a copy of the DSDT, just a pointer to the mapped table. Signed-off-by: Len Brown <len.brown@intel.com>
| * | asus-laptop: LindentLen Brown2007-01-30
| | | | | | | | | | | | Signed-off-by: Len Brown <len.brown@intel.com>
| * | asus-laptop: add light sensor supportCorentin Chary2007-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | /proc/acpi/asus/lslvl is now /sys/.../asus-laptop/ls_level /proc/acpi/asus/lssw is now /sys/.../asus-laptop/ls_switch nothing else .. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
| * | asus-laptop: add ledd supportCorentin Chary2007-01-30
| | | | | | | | | | | | | | | | | | | | | | | | Ledd is a special led ... /sys/.../asus-laptop/ledd works like /proc/acpi/asus/ledd Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
| * | asus-laptop: add display switching supportCorentin Chary2007-01-30
| | | | | | | | | | | | | | | | | | | | | | | | /sys/.../asus-laptop/display can now be used to switch displays like the old /proc/acpi/asus/disp does Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
| * | asus-laptop: add backlight supportCorentin Chary2007-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Adds backlight support using backlight class. We now change the brightness *and toggle the backlight !* via /sys/class/backlight/asus-laptop/. If the user switchs the backlight using the keyboard, asus_hotk_notify looks for ATKD_LCD_OFF and ATKD_LCD_ON events, and stores the right state into hotk->status and bd->props->power . Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
| * | asus-laptop: add bluetooth and wlan supportCorentin Chary2007-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WLED and BLED are not handled like other leds (MLED, etc ..), because sometime they also control the wlan/bluetooth device. If the method for wireless_status is found, it's used to get the status, otherwise hotk->status is used. We also use the HWRS method, which tell if the bluetooth/wlan device is present or not. This patch show why we need a ASUS_SET_DEVICE_ATTR macro : if there is a bluetooth device, /sys/dev.../asus-laptop/bluetooth is usable, else it's not but it's clean. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
| * | asus-laptop: add led supportCorentin Chary2007-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add led support, using generic led class. Thomas Tuttle's patch <http://lkml.org/lkml/2006/7/6/247> was very usefull. We use hotk->status to store led status because it's very hard to find acpi method to get the right status... To reduce the code, I use a lot of macro (ASUS_LED, ASUS_LED_REGISTER, etc ...), because the code is the same for all leds ... Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
| * | asus-laptop: add base driverCorentin Chary2007-01-30
| |/ | | | | | | | | | | | | | | | | | | | | | | Adds the new driver and make ASUS_LAPTOP and ACPI_ASUS incompatible. It may be strange to use ASUS_CREATE_DEVICE_ATTR and ASUS_SET_DEVICE_ATTR now, but these macro will be very usefull in next patchs. ASUS_HANDLE and ASUS_HANDLE_INIT comes from IBM_HANDLE and IBM_HANDLE_INIT, with some modification, and will also be used in next patchs. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Len Brown <len.brown@intel.com>
* | tifm_core: add suspend/resume infrastructure for tifm devicesAlex Dubov2007-02-04
| | | | | | | | | | Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | tifm_7xx1: prettifyAlex Dubov2007-02-04
| | | | | | | | | | | | | | Fix some spaces and tabs. No semantic changes are introduced. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | tifm_7xx1: recognize device 0xac8f as supportedAlex Dubov2007-02-04
| | | | | | | | | | | | | | This patch also adds symbolic defines for supported pci ids. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | tifm_7xx1: switch from workqueue to kthreadAlex Dubov2007-02-04
| | | | | | | | | | | | | | | | | | | | As there's only one work item (media_switcher) to handle and it's effectively serialized with itself, I found it more convenient to use kthread instead of workqueue. This also allows for a working implementation of suspend/resume, which were totally broken in the past version. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | tifm_7xx1: Merge media insert and media remove functionsAlex Dubov2007-02-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hardware does not say whether card was inserted or removed when reporting socket events. Moreover, during suspend, media can be removed or switched to some other card type without notification. Therefore, for each socket in the change set the following is performed: 1. If there's active device in the socket it's unregistered 2. Media detection is performed 3. If detection recognizes supportable media, new device is registered This patch also alters some macros and variable names to enhance clarity. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | tifm_7xx1: simplify eject functionAlex Dubov2007-02-04
| | | | | | | | | | | | | | | | Eject function can take advantage of the socket_id field instead of explicit pointer comparison. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | Add dummy_signal_irq function to save check in ISRAlex Dubov2007-02-04
| | | | | | | | | | Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | Remove unused return value from signal_irq callbackAlex Dubov2007-02-04
| | | | | | | | | | Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* | tifm_sd: restructure initialization, removal and command handlingAlex Dubov2007-02-04
|/ | | | | | | | | | | | | | | | | | | In order to support correct suspend and resume several changes were needed: 1. Switch from work_struct to tasklet for command handling. When device suspend is called workqueues are already frozen and can not be used. 2. Separate host initialization code from driver's probe and don't rely on interrupts for host initialization. This, in turn, addresses two problems: a) Resume needs to re-initialize the host, but can not assume that device interrupts were already re-armed. b) Previously, probe will return successfully before really knowing the state of the host, as host interrupts were not armed in time. Now it uses polling to determine the real host state before returning. 3. Separate termination code from driver's remove. Termination may be caused by resume, if media changed type or became unavailable during suspend. Signed-off-by: Alex Dubov <oakad@yahoo.com> Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
* Pull platform-drivers into test branchLen Brown2006-12-20
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| * ACPI: video: Add dev argument for backlight_device_registerYu Luming2006-12-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch set adds generic abstract layer support for acpi video driver to have generic user interface to control backlight and output switch control by leveraging the existing backlight sysfs class driver, and by adding a new video output sysfs class driver. This patch: Add dev argument for backlight_device_register to link the class device to real device object. The platform specific driver should find a way to get the real device object for their video device. [akpm@osdl.org: build fix] [akpm@osdl.org: fix msi-laptop.c] Signed-off-by: Luming Yu <Luming.yu@intel.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
* | [PATCH] tifm: fix NULL ptr and styleRandy Dunlap2006-12-07
| | | | | | | | | | | | | | | | | | | | | | Fix sparse NULL warning; drivers/misc/tifm_core.c:223:17: warning: Using plain integer as NULL pointer Fix style while there. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | WorkStruct: make allyesconfigDavid Howells2006-11-22
| | | | | | | | | | | | Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
* | [PATCH] Fix for LKDTM MEM_SWAPOUT crashpointAnkita Garg2006-11-06
| | | | | | | | | | | | | | | | | | | | | | The MEM_SWAPOUT crashpoint in LKDTM could be broken as some compilers inline the call to shrink_page_list() and symbol lookup for this function name fails. Replacing it with the function shrink_inactive_list(), which is the only function calling shrink_page_list(). Signed-off-by: Ankita Garg <ankita@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] lkdtm: cleanup headers and module_param/MODULE_PARM_DESCRandy Dunlap2006-11-03
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix module_param/sysfs file permission typo. Clean up MODULE_PARM_DESC strings to avoid fancy (and incorrect) formatting. Fix header includes for lkdtm; add some needed ones, remove unused ones; and fix this gcc warning: drivers/misc/lkdtm.c:150: warning: 'struct buffer_head' declared inside parameter list drivers/misc/lkdtm.c:150: warning: its scope is only this definition or declaration, which is probably not what you want Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Ankita Garg <ankita@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] ioc4: fix printk format warningRandy Dunlap2006-10-28
| | | | | | | | | | | | | | | | | | | | Fix printk format warning: drivers/misc/ioc4.c:213: warning: long long int format, u64 arg (arg 3) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Brent Casavant <bcasavan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] missing includes of io.hAl Viro2006-10-25
| | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] IOC4 should depend on PCIAl Viro2006-10-25
|/ | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] ioc4: Enable build on non-SN2Brent Casavant2006-10-17
| | | | | | | | | | | | | | | | | | | | The SGI PCI-RT card, based on the SGI IOC4 chip, will be made available on Altix XE (x86_64) platforms in the near future. As such it is now a misnomer for the IOC4 base device driver to live under drivers/sn, and would complicate builds for non-SN2. This patch moves the IOC4 base driver code from drivers/sn to drivers/misc, and updates the associated Makefiles and Kconfig files to allow building on non-SN2 configs. Due to the resulting change in link order, it is now necessary to use late_initcall() for IOC4 subdriver initialization. [akpm@osdl.org: __udivdi3 fix] [akpm@osdl.org: fix default in Kconfig] Acked-by: Pat Gefre <pfg@sgi.com> Acked-by: Jeremy Higdon <jeremy@sgi.com> Signed-off-by: Brent Casavant <bcasavan@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* MSI S270 Laptop support: backlight, wlan, bluetooth statesLennart Poettering2006-10-14
| | | | | | | | | | | | | | Create a driver to support the platform-specific features of MSI S270 laptops (and maybe other MSI laptops). This driver implements a backlight device for controlling LCD brightness (/sys/class/backlight/msi-laptop-bl/). In addition it allows access to the WLAN and Bluetooth states through a platform driver (/sys/devices/platform/msi-laptop-pf/). Signed-off-by: Lennart Poettering <mzxreary@0pointer.de> Cc: Dmitry Torokhov <dtor@mail.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Len Brown <len.brown@intel.com>
* [PATCH] tifm __iomem annotations, NULL noise removalAl Viro2006-10-09
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
* [PATCH] mmc: driver for TI FlashMedia card reader - Kconfig/MakefileAlex Dubov2006-10-04
| | | | | | | | | Signed-off-by: Alex Dubov <oakad@yahoo.com> Cc: Daniel Qarras <dqarras@yahoo.com> Acked-by: Pierre Ossman <drzeus@drzeus.cx> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] mmc: driver for TI FlashMedia card reader - sourceAlex Dubov2006-10-04
| | | | | | | | | | | | | Driver for TI Flash Media card reader. At present, only MMC/SD cards are supported. [akpm@osdl.org: cleanups, build fixes] Signed-off-by: Alex Dubov <oakad@yahoo.com> Cc: Daniel Qarras <dqarras@yahoo.com> Acked-by: Pierre Ossman <drzeus@drzeus.cx> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Linux Kernel Dump Test ModuleAnkita Garg2006-10-02
| | | | | | | | | | | | | | | | | | | | A simple module to test Linux Kernel Dump mechanism. This module uses jprobes to install/activate pre-defined crash points. At different crash points, various types of crashing scenarios are created like a BUG(), panic(), exception, recursive loop and stack overflow. The user can activate a crash point with specific type by providing parameters at the time of module insertion. Please see the file header for usage information. The module is based on the Linux Kernel Dump Test Tool by Fernando <http://lkdtt.sourceforge.net>. This module could be merged with mainline. Jprobes is used here so that the context in which crash point is hit, could be maintained. This implements all the crash points as done by LKDTT except the one in the middle of tasklet_action(). Signed-off-by: Ankita Garg <ankita@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] inode-diet: Eliminate i_blksize from the inode structureTheodore Ts'o2006-09-27
| | | | | | | | | | | | | | | | This eliminates the i_blksize field from struct inode. Filesystems that want to provide a per-inode st_blksize can do so by providing their own getattr routine instead of using the generic_fillattr() function. Note that some filesystems were providing pretty much random (and incorrect) values for i_blksize. [bunk@stusta.de: cleanup] [akpm@osdl.org: generic_fillattr() fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_privateTheodore Ts'o2006-09-27
| | | | | | | | | | | | | | | | | | | | | | | | | The following patches reduce the size of the VFS inode structure by 28 bytes on a UP x86. (It would be more on an x86_64 system). This is a 10% reduction in the inode size on a UP kernel that is configured in a production mode (i.e., with no spinlock or other debugging functions enabled; if you want to save memory taken up by in-core inodes, the first thing you should do is disable the debugging options; they are responsible for a huge amount of bloat in the VFS inode structure). This patch: The filesystem or device-specific pointer in the inode is inside a union, which is pretty pointless given that all 30+ users of this field have been using the void pointer. Get rid of the union and rename it to i_private, with a comment to explain who is allowed to use the void pointer. This is just a cleanup, but it allows us to reuse the union 'u' for something something where the union will actually be used. [judith@osdl.org: powerpc build fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Judith Lebzelter <judith@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] irq-flags: misc drivers: Use the new IRQF_ constantsThomas Gleixner2006-07-02
| | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Remove obsolete #include <linux/config.h>Jörn Engel2006-06-30
| | | | | Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
* [PATCH] spin/rwlock init cleanupsIngo Molnar2006-06-27
| | | | | | | | | | | | | | | | | | | | | locking init cleanups: - convert " = SPIN_LOCK_UNLOCKED" to spin_lock_init() or DEFINE_SPINLOCK() - convert rwlocks in a similar manner this patch was generated automatically. Motivation: - cleanliness - lockdep needs control of lock initialization, which the open-coded variants do not give - it's also useful for -rt and for lock debugging in general Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] VFS: Permit filesystem to override root dentry on mountDavid Howells2006-06-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extend the get_sb() filesystem operation to take an extra argument that permits the VFS to pass in the target vfsmount that defines the mountpoint. The filesystem is then required to manually set the superblock and root dentry pointers. For most filesystems, this should be done with simple_set_mnt() which will set the superblock pointer and then set the root dentry to the superblock's s_root (as per the old default behaviour). The get_sb() op now returns an integer as there's now no need to return the superblock pointer. This patch permits a superblock to be implicitly shared amongst several mount points, such as can be done with NFS to avoid potential inode aliasing. In such a case, simple_set_mnt() would not be called, and instead the mnt_root and mnt_sb would be set directly. The patch also makes the following changes: (*) the get_sb_*() convenience functions in the core kernel now take a vfsmount pointer argument and return an integer, so most filesystems have to change very little. (*) If one of the convenience function is not used, then get_sb() should normally call simple_set_mnt() to instantiate the vfsmount. This will always return 0, and so can be tail-called from get_sb(). (*) generic_shutdown_super() now calls shrink_dcache_sb() to clean up the dcache upon superblock destruction rather than shrink_dcache_anon(). This is required because the superblock may now have multiple trees that aren't actually bound to s_root, but that still need to be cleaned up. The currently called functions assume that the whole tree is rooted at s_root, and that anonymous dentries are not the roots of trees which results in dentries being left unculled. However, with the way NFS superblock sharing are currently set to be implemented, these assumptions are violated: the root of the filesystem is simply a dummy dentry and inode (the real inode for '/' may well be inaccessible), and all the vfsmounts are rooted on anonymous[*] dentries with child trees. [*] Anonymous until discovered from another tree. (*) The documentation has been adjusted, including the additional bit of changing ext2_* into foo_* in the documentation. [akpm@osdl.org: convert ipath_fs, do other stuff] Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Nathan Scott <nathans@sgi.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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