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2006-09-29[PATCH] cdev documentationJonathan Corbet
Add some documentation comments for the cdev interface. Signed-off-by: Jonathan Corbet <corbet@lwn.net> Cc: Rolf Eike Beer <eike-kernel@sf-tec.de> Acked-by: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29[PATCH] update Documentation/kernel-parameters.txtjens m. noedler
Signed-off-by: jens m. noedler <noedler@web.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29[PATCH] LSM: remove BSD secure level security moduleChris Wright
This code has suffered from broken core design and lack of developer attention. Broken security modules are too dangerous to leave around. It is time to remove this one. Signed-off-by: Chris Wright <chrisw@sous-sol.org> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Cc: Davi Arnaut <davi.arnaut@gmail.com> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Acked-by: James Morris <jmorris@namei.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29[PATCH] oom_adj/oom_score documentationJan-Frode Myklebust
I was looking for the a way around an OOM-problem, and found a couple of undocumented new features for tuning the OOM-score of individual processes. Here's a small documentation patch for /proc/<pid>/oom_adj and /proc/<pid>/oom_score. Signed-off-by: Jan-Frode Myklebust <mykleb@no.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29[PATCH] Include documentation for functions in drivers/base/class.cRolf Eike Beer
drivers/base/class.c is omitted by "make *docs". Add it to get documentation for class_create() and friends for free. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Martin Waitz <tali@admingilde.org> Cc: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29[PATCH] kernel-doc: move filesystems togetherRandy Dunlap
Move all VFS + filesystem docs together. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29[PATCH] kernel-doc for relay interfaceRandy Dunlap
Add relay interface support to DocBook/kernel-api.tmpl. Fix typos etc. in relay.c and relayfs.txt. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Acked-by: Tom Zanussi <zanussi@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-28[PKTGEN]: Documentation updateFrancesco Fondelli
Signed-off-by: Francesco Fondelli <francesco.fondelli@gmail.com> Signed-off-by: Robert Olsson <robert.olsson@its.uu.se> Signed-off-by: David S. Miller <davem@davemloft.net>
2006-09-28hwmon: Remove Yuan Mu's addressJean Delvare
hwmon: Remove Yuan Mu's address Yuan Mu no longer works at Winbond. I wish to publicly thank Yuan for his help with Winbond hardware monitoring chips support during the past 10 months. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-28vt1211: Document module parametersJuerg Haefliger
vt1211: Document module parameters Add a description of the module parameters to the documentation of the vt1211 driver. Signed-off-by: Juerg Haefliger <juergh@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-28vt1211: Add documentationJuerg Haefliger
vt1211: Add documentation Add documentation for the new vt1211 hardware monitoring driver. Signed-off-by: Juerg Haefliger <juergh@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-28w83791d: Documentation updateCharles Spirakis
w83791d: Documentation update The alarm bits and the beep enable bits are in different positions in the hardware. Document the problem and leave it to the user-space code to handle the situation. When this driver is updated to the standardized sysfs alarm/beep methodology, this won't be a problem. This is a documentation only change. Signed-off by: Charles Spirakis <bezaur@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-28k8temp: Add documentationRudolf Marek
k8temp: Add documentation Add promised documentation for the k8temp driver. Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-28it87: Copyright updateJean Delvare
it87: Copyright update I think my contributions to the it87 driver over the past two years qualify me as a co-author of this driver. Also drop old comments of dubious usefulness. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-28it87: Add support for the IT8718FJean Delvare
it87: Add support for the IT8718F The IT8718F is a Super-I/O chip with integrated hardware monitoring functions. It is very similar to the IT8716F, so adding support to the it87 driver was pretty straightforward. The most significant difference is that the IT8718F has up to 8 VID pins, instead of 6 for the older chips. For the IT8718F, the VID value can only be read from Super-I/O space. Userspace support is already in lm_sensors SVN (to be soon released as 2.10.1.) Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-28it87: Add support for the IT8716FJean Delvare
it87: Add support for the IT8716F The IT8716F is a Super-I/O chip with integrated hardware monitoring functions. It is very similar to the IT8712F, so adding support to the it87 driver was pretty straightforward. The most significant change here is that the IT8716F has 16-bit fan speed counters, so the user no more needs to tweak the fan clock dividers to get the best readings. Userspace support is already in lm_sensors SVN (to be soon released as 2.10.1.) Thanks to Stian Oksavik, Olivier Nicolas, Prakash Punnoor and Juergen Kilb for testing the early versions of this patch. Thanks also to ITE for providing datasheets and answering my questions. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-28hwmon: Documentation update for w83627ehfRudolf Marek
Add documentation for the w83627ehf hardware monitoring driver. Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27Merge 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: (48 commits) [PATCH] bonding: update version number [PATCH] git-netdev-all: pc300_tty build fix [PATCH] Make PC300 WAN driver compile again [PATCH] Modularize generic HDLC [PATCH] more s2io __iomem annotations [PATCH] restore __iomem annotations in e1000 [PATCH] 64bit bugs in s2io [PATCH] bonding: Fix primary selection error at enslavement time [PATCH] bonding: Don't mangle LACPDUs [PATCH] bonding: Validate probe replies in ARP monitor [PATCH] bonding: Don't release slaves when master is admin down [PATCH] bonding: Add priv_flag to avoid event mishandling [PATCH] bonding: Handle large hard_header_len [PATCH] bonding: Remove unneeded NULL test [PATCH] bonding: Format fix in seq_printf call [PATCH] bonding: Convert delay value from s16 to int [PATCH] bonding: Allow bonding to enslave a 10 Gig adapter Delete unused drivers/net/gt64240eth.h [PATCH] skge: fiber support [PATCH] fix possible NULL ptr deref in forcedeth ...
2006-09-27USB: Dealias -110 code (more complete)Pete Zaitcev
The purpose of this patch is to split off the case when a device does not reply on the lower level (which is reported by HC hardware), and a case when the device accepted the request, but does not reply at upper level. This redefinition allows to diagnose issues easier, without asking the user if the -110 happened "immediately". The usbmon splits such cases already thanks to its timestamp, but it's not always available. I adjusted all drivers which I found affected (by searching for "urb"). Out of tree drivers may suffer a little bit, but I do not expect much breakage. At worst they may print a few messages. Signed-off-by: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27USB: Add ADU support for Ontrak ADU devicesSteven Haigh
This patch adds support for Ontrak ADU USB devices. Fixed for printk issues by Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Steven Haigh <netwiz@crc.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27Add AIRcable USB Bluetooth Dongle DriverManuel Francisco Naranjo
Add driver for AIRcable USB Bluetooth dongle. Signed-off-by: Naranjo, Manuel Francisco <naranjo.manuel@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27USB doc patch 2Sam Bishop
A little more detail on how and when to poll() /proc/bus/usb/devices. Signed-off-by: Sam Bishop <sam@bishop.dhs.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27USB: doc patch 1Sam Bishop
Grammar, spelling, and stylistic edits. Signed-off-by: Sam Bishop <sam@bishop.dhs.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-27Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (108 commits) sh: Fix occasional flush_cache_4096() stack corruption. sh: Calculate shm alignment at runtime. sh: dma-mapping compile fixes. sh: Initial vsyscall page support. sh: Clean up PAGE_SIZE definition for assembly use. sh: Selective flush_cache_mm() flushing. sh: More intelligent entry_mask/way_size calculation. sh: Support for L2 cache on newer SH-4A CPUs. sh: Update kexec support for API changes. sh: Optimized readsl()/writesl() support. sh: Report movli.l/movco.l capabilities. sh: CPU flags in AT_HWCAP in ELF auxvt. sh: Add support for 4K stacks. sh: Enable /proc/kcore support. sh: stack debugging support. sh: select CONFIG_EMBEDDED. sh: machvec rework. sh: Solution Engine SH7343 board support. sh: SH7710VoIPGW board support. sh: Enable verbose BUG() support. ...
2006-09-27[PATCH] sysctl: Document that sys_sysctl will be removedEric W. Biederman
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27[PATCH] kdump: introduce "reset_devices" command line optionVivek Goyal
Resetting the devices during driver initialization can be a costly operation in terms of time (especially scsi devices). This option can be used by drivers to know that user forcibly wants the devices to be reset during initialization. This option can be useful while kernel is booting in unreliable environment. For ex. during kdump boot where devices are in unknown random state and BIOS execution has been skipped. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27[PATCH] NOMMU: Make futexes work under NOMMU conditionsDavid Howells
Make futexes work under NOMMU conditions. This can be tested by running this in one shell: #define SYSERROR(X, Y) \ do { if ((long)(X) == -1L) { perror(Y); exit(1); }} while(0) int main() { int shmid, tmp, *f, n; shmid = shmget(23, 4, IPC_CREAT|0666); SYSERROR(shmid, "shmget"); f = shmat(shmid, NULL, 0); SYSERROR(f, "shmat"); n = *f; printf("WAIT: %p{%x}\n", f, n); tmp = futex(f, FUTEX_WAIT, n, NULL, NULL, 0); SYSERROR(tmp, "futex"); printf("WAITED: %d\n", tmp); tmp = shmdt(f); SYSERROR(tmp, "shmdt"); exit(0); } And then this in the other shell: #define SYSERROR(X, Y) \ do { if ((long)(X) == -1L) { perror(Y); exit(1); }} while(0) int main() { int shmid, tmp, *f; shmid = shmget(23, 4, IPC_CREAT|0666); SYSERROR(shmid, "shmget"); f = shmat(shmid, NULL, 0); SYSERROR(f, "shmat"); (*f)++; printf("WAKE: %p{%x}\n", f, *f); tmp = futex(f, FUTEX_WAKE, 1, NULL, NULL, 0); SYSERROR(tmp, "futex"); printf("WOKE: %d\n", tmp); tmp = shmdt(f); SYSERROR(tmp, "shmdt"); exit(0); } The first program will set up a SYSV IPC SHM segment and wait on a futex in it for the number at the start to change. The program will increment that number and wake the first program up. This leads to output of the form: SHELL 1 SHELL 2 ======================= ======================= # /dowait WAIT: 0xc32ac000{0} # /dowake WAKE: 0xc32ac000{1} WAITED: 0 WOKE: 1 Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27[PATCH] NOMMU: Add docs about shared memoryDavid Howells
Add documentation about using shared memory in NOMMU mode. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27[PATCH] NOMMU: Make mremap() partially work for NOMMU kernelsDavid Howells
Make mremap() partially work for NOMMU kernels. It may resize a VMA provided that it doesn't exceed the size of the slab object in which the storage is allocated that the VMA refers to. Shareable VMAs may not be resized. Moving VMAs (as permitted by MREMAP_MAYMOVE) is not currently supported. This patch also makes use of the fact that the VMA list is now ordered to cut it short when possible. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27[PATCH] NOMMU: Implement /proc/pid/maps for NOMMUDavid Howells
Implement /proc/pid/maps for NOMMU by reading the vm_area_list attached to current->mm->context.vmlist. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/gregkh/i2c-2.6: (30 commits) i2c: Drop unimplemented slave functions i2c: Constify i2c_algorithm declarations, part 2 i2c: Constify i2c_algorithm declarations, part 1 i2c: Let drivers constify i2c_algorithm data i2c-isa: Restore driver owner i2c-viapro: Add support for the VT8237A and VT8251 i2c: Warn on i2c client creation failure i2c-core: Drop useless bitmaskings i2c-algo-pcf: Discard the mdelay data struct member i2c-algo-bit: Cleanups i2c-isa: Fail adding driver on attach_adapter error i2c: __must_check fixes (chip drivers) i2c-dev: attach/detach_adapter cleanups i2c-stub: Chip address as a module parameter i2c: Plan i2c-isa for removal i2c: New bus driver for TI OMAP boards i2c-algo-bit: Discard the mdelay data struct member i2c-matroxfb: Struct init conversion i2c: Fix copy-n-paste in subsystem Kconfig i2c-au1550: Add I2C support for Au1200 ...
2006-09-27Merge 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: (28 commits) pciehp - fix wrong return value IA64: PCI: dont disable irq which is not enabled acpiphp: add support for ioapic hot-remove PCI: assign ioapic resource at hotplug acpiphp: disable bridges acpiphp: stop bus device before acpi_bus_trim PCI: add pci_stop_bus_device acpiphp: do not initialize existing ioapics acpiphp: initialize ioapics before starting devices acpiphp: set hpp values before starting devices PCI Hotplug: cleanup pcihp skeleton code. PCI: Restore PCI Express capability registers after PM event PCI: drivers/pci/hotplug/acpiphp_glue.c: make a function static PCI: Multiprobe sanitizer PCI: fix __must_check warnings PCI Hotplug: fix __must_check warnings SHPCHP: fix __must_check warnings PCI-Express AER implemetation: pcie_portdrv error handler PCI-Express AER implemetation: AER core and aerdriver PCI-Express AER implemetation: export pcie_port_bus_type ...
2006-09-27[MIPS] Remove EV96100 as previously announced.Ralf Baechle
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-09-27sh: Update new-machine.txt so it's more accurate.Paul Mundt
This fell behind a bit, get it updated so the documentation has something in common with reality. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Cleanup and document register bank usage.Paul Mundt
Initial register bank cleanup. Make SR.RB configurable, and add some preliminary documentation on register bank usage within the kernel. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-26PCI-Express AER implemetation: aer howto documentZhang, Yanmin
PCI-Express AER (Advanced Error Reporting) provides more robust error reporting. The series of patches enable kernel support to AER. The initial patches were written by Tom Long Nguyen. I ported them to the kernel 2.6.18-rc3. Many thanks to Rajesh Shah and Narayanan Chandramouli for their great review comments and testing help. Patch 1 consists of the pciaer-howto.txt document. Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-26i2c-viapro: Add support for the VT8237A and VT8251Rudolf Marek
i2c-viapro: Add support for the VT8237A and VT8251 Documentation update included. Compile tested. Signed-off-by: Rudolf Marek <r.marek@sh.cvut.cz> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-26i2c-stub: Chip address as a module parameterJean Delvare
i2c-stub: Chip address as a module parameter Add a mandatory chip_addr parameter to i2c-stub. This parameter defines to which chip address the driver will respond, instead of reponding to all addresses as before. The idea is to prevent the users from loading i2c-stub at random and being then confused by the results of sensors-detect or other user-space tools. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-26i2c: Plan i2c-isa for removalJean Delvare
i2c: Plan i2c-isa for removal i2c-isa doesn't make much sense in the device driver model. Drivers relying on it are better implemented as platform drivers. We must wait for recent versions of libsensors (2.10.0 or later) to be widely deployed beforehand, though. This move should also make it easier to convert i2c-core to the device driver model. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-09-26Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits) [PATCH] Don't set calgary iommu as default y [PATCH] i386/x86-64: New Intel feature flags [PATCH] x86: Add a cumulative thermal throttle event counter. [PATCH] i386: Make the jiffies compares use the 64bit safe macros. [PATCH] x86: Refactor thermal throttle processing [PATCH] Add 64bit jiffies compares (for use with get_jiffies_64) [PATCH] Fix unwinder warning in traps.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 [PATCH] x86: Move direct PCI scanning functions out of line [PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI [PATCH] Don't leak NT bit into next task [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder [PATCH] Fix some broken white space in ia32_signal.c [PATCH] Initialize argument registers for 32bit signal handlers. [PATCH] Remove all traces of signal number conversion [PATCH] Don't synchronize time reading on single core AMD systems [PATCH] Remove outdated comment in x86-64 mmconfig code [PATCH] Use string instructions for Core2 copy/clear [PATCH] x86: - restore i8259A eoi status on resume [PATCH] i386: Split multi-line printk in oops output. ...
2006-09-26Merge 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: (47 commits) Driver core: Don't call put methods while holding a spinlock Driver core: Remove unneeded routines from driver core Driver core: Fix potential deadlock in driver core PCI: enable driver multi-threaded probe Driver Core: add ability for drivers to do a threaded probe sysfs: add proper sysfs_init() prototype drivers/base: check errors drivers/base: Platform notify needs to occur before drivers attach to the device v4l-dev2: handle __must_check add CONFIG_ENABLE_MUST_CHECK add __must_check to device management code Driver core: fixed add_bind_files() definition Driver core: fix comments in drivers/base/power/resume.c sysfs_remove_bin_file: no return value, dump_stack on error kobject: must_check fixes Driver core: add ability for devices to create and remove bin files Class: add support for class interfaces for devices Driver core: create devices/virtual/ tree Driver core: add device_rename function Driver core: add ability for classes to handle devices properly ...
2006-09-26Merge branch 'master' into upstreamJeff Garzik
2006-09-26[PATCH] PM: Add pm_trace switchRafael J. Wysocki
Add the pm_trace attribute in /sys/power which has to be explicitly set to one to really enable the "PM tracing" code compiled in when CONFIG_PM_TRACE is set (which modifies the machine's CMOS clock in unpredictable ways). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-26[PATCH] x86: add a bootparameter to reserve high linear address spaceZachary Amsden
Add a boot parameter to reserve high linear address space for hypervisors. This is necessary to allow dynamically loaded hypervisor modules, which might not happen until userspace is already running, and also provides a useful tool to benchmark the performance impact of reduced lowmem address space. Signed-off-by: Zachary Amsden <zach@vmware.com> Signed-off-by: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-26[PATCH] zone_reclaim: dynamic slab reclaimChristoph Lameter
Currently one can enable slab reclaim by setting an explicit option in /proc/sys/vm/zone_reclaim_mode. Slab reclaim is then used as a final option if the freeing of unmapped file backed pages is not enough to free enough pages to allow a local allocation. However, that means that the slab can grow excessively and that most memory of a node may be used by slabs. We have had a case where a machine with 46GB of memory was using 40-42GB for slab. Zone reclaim was effective in dealing with pagecache pages. However, slab reclaim was only done during global reclaim (which is a bit rare on NUMA systems). This patch implements slab reclaim during zone reclaim. Zone reclaim occurs if there is a danger of an off node allocation. At that point we 1. Shrink the per node page cache if the number of pagecache pages is more than min_unmapped_ratio percent of pages in a zone. 2. Shrink the slab cache if the number of the nodes reclaimable slab pages (patch depends on earlier one that implements that counter) are more than min_slab_ratio (a new /proc/sys/vm tunable). The shrinking of the slab cache is a bit problematic since it is not node specific. So we simply calculate what point in the slab we want to reach (current per node slab use minus the number of pages that neeed to be allocated) and then repeately run the global reclaim until that is unsuccessful or we have reached the limit. I hope we will have zone based slab reclaim at some point which will make that easier. The default for the min_slab_ratio is 5% Also remove the slab option from /proc/sys/vm/zone_reclaim_mode. [akpm@osdl.org: cleanups] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-26[PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing ↵Andi Kleen
conf1 Some buggy systems can machine check when config space accesses happen for some non existent devices. i386/x86-64 do some early device scans that might trigger this. Allow pci=noearly to disable this. Also when type 1 is disabling also don't do any early accesses which are always type1. This moves the pci= configuration parsing to be a early parameter. I don't think this can break anything because it only changes a single global that is only used by PCI. Cc: gregkh@suse.de Cc: Trammell Hudson <hudson@osresearch.net> Signed-off-by: Andi Kleen <ak@suse.de>
2006-09-26[PATCH] Document my tree in Documentation/HOWTOAndi Kleen
Signed-off-by: Andi Kleen <ak@suse.de>
2006-09-26[PATCH] Add stack documentation document from Keith OwensAndi Kleen
Describes the stack organization on x86-64. I changed it a bit and removed some obsolete information and the questions. Cc: kaos@sgi.com Signed-off-by: Andi Kleen <ak@suse.de>
2006-09-26[PATCH] x86: Detect CFI support in the assembler at runtimeAndi Kleen
... instead of using a CONFIG option. The config option still controls if the resulting executable actually has unwind information. This is useful to prevent compilation errors when users select CONFIG_STACK_UNWIND on old binutils and also allows to use CFI in the future for non kernel debugging applications. Cc: jbeulich@novell.com Cc: sam@ravnborg.org Signed-off-by: Andi Kleen <ak@suse.de>
2006-09-26[PATCH] Document backtracer selection optionsAndi Kleen
Signed-off-by: Andi Kleen <ak@suse.de>