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2010-06-09tracing: Remove kmemtrace ftrace pluginLi Zefan2-197/+0
We have been resisting new ftrace plugins and removing existing ones, and kmemtrace has been superseded by kmem trace events and perf-kmem, so we remove it. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Acked-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> [ remove kmemtrace from the makefile, handle slob too ] Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-05-27Merge branch 'hwmon-for-linus' of ↵Linus Torvalds5-16/+85
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: (23 commits) hwmon: (lm75) Add support for the Texas Instruments TMP105 hwmon: (ltc4245) Read only one GPIO pin hwmon: (dme1737) Add SCH5127 support hwmon: (tmp102) Don't always stop chip at exit hwmon: (tmp102) Fix suspend and resume functions hwmon: (tmp102) Various fixes hwmon: Driver for TI TMP102 temperature sensor hwmon: EMC1403 thermal sensor support hwmon: (applesmc) Add temperature sensor labels to sysfs interface hwmon: (applesmc) Add generic support for MacBook Pro 7 hwmon: (applesmc) Add generic support for MacBook Pro 6 hwmon: (applesmc) Add support for MacBook Pro 5,3 and 5,4 hwmon: (tmp401) Reorganize code to get rid of static forward declarations hwmon: (tmp401) Use constants for sysfs file permissions hwmon: (adm1031) Allow setting update rate hwmon: Add description of the update_rate sysfs attribute hwmon: (lm90) Use programmed update rate hwmon: (f71882fg) Acquire I/O regions while we're working with them hwmon: (f71882fg) Code cleanup hwmon: (f71882fg) Use strict_stro(l|ul) instead of simple_strto$1 ...
2010-05-27hwmon: (ltc4245) Read only one GPIO pinIra W. Snyder1-3/+1
Read only one of the GPIO pins as an analog voltage. The ADC can be switched to a different GPIO pin at runtime, but this is not supported. Previously, this driver would report the analog voltage of the currently selected GPIO pin as all three GPIO voltages: in9_input, in10_input and in11_input. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: stable@kernel.org
2010-05-27hwmon: (dme1737) Add SCH5127 supportJuerg Haefliger1-10/+41
Add support for the hardware monitoring capabilities of the SCH5127 chip to the dme1737 driver. Signed-off-by: Juerg Haefliger <juergh@gmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Jeff Rickman <jrickman@myamigos.us>
2010-05-27hwmon: (tmp102) Various fixesJean Delvare1-5/+4
Fixes from my driver review: http://lists.lm-sensors.org/pipermail/lm-sensors/2010-March/028051.html Only the small changes are in there, more important changes will come later separately as time permits. * Drop the remnants of the now gone detect function * The TMP102 has no known compatible chip * Include the right header files * Clarify why byte swapping of register values is needed * Strip resolution info bit from temperature register value * Set cache lifetime to 1/3 second * Don't arbitrarily reject limit values; clamp as needed * Make limit writing unconditional * Don't check for transaction types the driver doesn't use * Properly check for error when setting configuration * Report error on failed probe * Make the driver load automatically where needed * Various other minor fixes Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Steven King <sfking@fdwdc.com>
2010-05-27hwmon: Driver for TI TMP102 temperature sensorSteven King1-0/+27
Driver for the TI TMP102. The TI TMP102 is similar to the LM75. It differs from the LM75 by having a 16-bit conf register and the temp registers have a minimum resolution of 12 bits; the extended conf register can select 13-bit resolution (which this driver does) and also change the update rate (which this driver currently doesn't use). [JD: Fix tmp102_exit tag, must be __exit, not __init.] Signed-off-by: Steven King <sfking@fdwdc.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-05-27hwmon: Add description of the update_rate sysfs attributeIra W. Snyder1-3/+10
The update_rate attribute can be used by drivers to let userspace choose the update rate of the chip, if it is configurable. Signed-off-by: Ira W. Snyder <iws@ovro.caltech.edu> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-05-27hwmon: (lm63) Add basic support for LM64Matthew Garrett1-0/+7
The LM64 appears to be an LM63 with added GPIO lines. Add support for the hwmon functionality - GPIO can be added at some later stage if someone has a need for them. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Jean Delvare <khali@linux-fr.org>
2010-05-27Merge branch 'sfi-release' of ↵Linus Torvalds1-0/+15
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-sfi-2.6 * 'sfi-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-sfi-2.6: SFI: add sysfs interface for SFI tables. SFI: add support for v0.81 spec
2010-05-27Merge branch 'for-linus' of ↵Linus Torvalds1-0/+10
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: schedule for removal firewire: core: use separate timeout for each transaction firewire: core: Fix tlabel exhaustion problem firewire: core: make transaction label allocation more robust firewire: core: clean up config ROM related defined constants ieee1394: mark char device files as not seekable firewire: cdev: mark char device files as not seekable firewire: ohci: cleanups and fix for nonstandard build without debug facility firewire: ohci: wait for PHY register accesses to complete firewire: ohci: fix up configuration of TI chips firewire: ohci: enable 1394a enhancements firewire: ohci: do not clear PHY interrupt status inadvertently firewire: ohci: add a function for reading PHY registers Trivial conflicts in Documentation/feature-removal-schedule.txt
2010-05-27SFI: add sysfs interface for SFI tables.Feng Tang1-0/+15
Analogous to ACPI's /sys/firmware/acpi/tables/... create /sys/firmware/sfi/tables/ The tables are primariy for the kernel, but sometimes it is useful for user-space to be able to read them. Signed-off-by: Feng Tang <feng.tang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2010-05-27numa: update Documentation/vm/numa, add memoryless node infoLee Schermerhorn1-39/+147
Kamezawa Hiroyuki requested documentation for the numa_mem_id() and slab related changes. He suggested Documentation/vm/numa for this documentation. Looking at this file, it seems to me to be hopelessly out of date relative to current Linux NUMA support. At the risk of going down a rathole, I have made an attempt to rewrite the doc at a slightly higher level [I think] and provide pointers to other in-tree documents and out-of-tree man pages that cover the details. Let the games begin. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Tejun Heo <tj@kernel.org> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: Nick Piggin <npiggin@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Eric Whitney <eric.whitney@hp.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27Documentation/filesystems/Locking: update documentation on llseek() wrt BKLJan Blunck1-2/+3
The inode's i_size is not protected by the big kernel lock. Therefore it does not make sense to recommend taking the BKL in filesystems llseek operations. Instead it should use the inode's mutex or use just use i_size_read() instead. Add a note that this is not protecting file->f_pos. Signed-off-by: Jan Blunck <jblunck@suse.de> Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Christoph Hellwig <hch@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: John Kacur <jkacur@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27Documentation/DMA-API-HOWTO: add ARCH_KMALLOC_MINALIGN descriptionFUJITA Tomonori1-1/+14
Add ARCH_KMALLOC_MINALIGN description in "Platform Issues" section. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: "David S. Miller" <davem@davemloft.net> Cc: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27Documentation: move the error handling to the better place in DMA-API-HOWTOFUJITA Tomonori1-30/+30
Handing DMA mapping errors is essential. Let's put it in the more appropriate place rather than the end of the doc. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27Documentation: update scatterlist struct description in DMA-API-HOWTOFUJITA Tomonori1-13/+4
Now we have <asm-generic/scatterlist.h>. Architectures should use it instead of inventing the own scatterlist struct. Let's update the description. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27Documentation: add SCSI drivers' mapping error handling to DMA-API-HOWTOFUJITA Tomonori1-0/+4
Add the concrete DMA mapping error handling for SCSI drivers on the queuecommand path. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: James Bottomley <James.Bottomley@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27Documentation: add networking driver's mapping error handling to DMA-API-HOWTOFUJITA Tomonori1-0/+5
Adds the concrete DMA mapping error handling for Networking drivers on the transmit path. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27memcg: update documentationKAMEZAWA Hiroyuki1-93/+198
Some information are old, and I think current document doesn't work as "a guide for users". We need summary of all of our controls, at least. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27memcg: move charge of file pagesDaisuke Nishimura1-6/+12
This patch adds support for moving charge of file pages, which include normal file, tmpfs file and swaps of tmpfs file. It's enabled by setting bit 1 of <target cgroup>/memory.move_charge_at_immigrate. Unlike the case of anonymous pages, file pages(and swaps) in the range mmapped by the task will be moved even if the task hasn't done page fault, i.e. they might not be the task's "RSS", but other task's "RSS" that maps the same file. And mapcount of the page is ignored(the page can be moved even if page_mapcount(page) > 1). So, conditions that the page/swap should be met to be moved is that it must be in the range mmapped by the target task and it must be charged to the old cgroup. [akpm@linux-foundation.org: coding-style fixes] [akpm@linux-foundation.org: fix warning] Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27memcg: oom kill disable and oom statusKAMEZAWA Hiroyuki1-0/+23
This adds a feature to disable oom-killer for memcg, if disabled, of course, tasks under memcg will stop. But now, we have oom-notifier for memcg. And the world around memcg is not under out-of-memory. memcg's out-of-memory just shows memcg hits limit. Then, administrator or management daemon can recover the situation by - kill some process - enlarge limit, add more swap. - migrate some tasks - remove file cache on tmps (difficult ?) Unlike oom-killer, you can take enough information before killing tasks. (by gcore, or, ps etc.) [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27memcg: oom notifierKAMEZAWA Hiroyuki1-1/+19
Considering containers or other resource management softwares in userland, event notification of OOM in memcg should be implemented. Now, memcg has "threshold" notifier which uses eventfd, we can make use of it for oom notification. This patch adds oom notification eventfd callback for memcg. The usage is very similar to threshold notifier, but control file is memory.oom_control and no arguments other than eventfd is required. % cgroup_event_notifier /cgroup/A/memory.oom_control dummy (About cgroup_event_notifier, see Documentation/cgroup/) Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Cc: David Rientjes <rientjes@google.com> Cc: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27Documentation/cgroups/cgroups.txt: fix reference to "numtasks"Trevor Woerner1-1/+1
Signed-off-by: Trevor Woerner <twoerner@gmail.com> Cc: Paul Menage <menage@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-27Documentation: SubmittingDrivers: ResourcesArce, Abraham1-0/+5
- Add additional location (Git) for the kernel master tree - Add reference to Git Project Signed-off-by: Abraham Arce <x0066660@ti.com> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-26Merge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linusLinus Torvalds1-5/+27
* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus: squashfs: update documentation to include description of xattr layout squashfs: fix name reading in squashfs_xattr_get squashfs: constify xattr handlers squashfs: xattr fix sparse warnings squashfs: xattr_lookup sparse fix squashfs: add xattr support configure option squashfs: add new extended inode types squashfs: add support for xattr reading squashfs: add xattr id support
2010-05-26squashfs: update documentation to include description of xattr layoutPhillip Lougher1-5/+27
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
2010-05-26driver core: add devname module aliases to allow module on-demand auto-loadingKay Sievers1-0/+2
This adds: alias: devname:<name> to some common kernel modules, which will allow the on-demand loading of the kernel module when the device node is accessed. Ideally all these modules would be compiled-in, but distros seems too much in love with their modularization that we need to cover the common cases with this new facility. It will allow us to remove a bunch of pretty useless init scripts and modprobes from init scripts. The static device node aliases will be carried in the module itself. The program depmod will extract this information to a file in the module directory: $ cat /lib/modules/2.6.34-00650-g537b60d-dirty/modules.devname # Device nodes to trigger on-demand module loading. microcode cpu/microcode c10:184 fuse fuse c10:229 ppp_generic ppp c108:0 tun net/tun c10:200 dm_mod mapper/control c10:235 Udev will pick up the depmod created file on startup and create all the static device nodes which the kernel modules specify, so that these modules get automatically loaded when the device node is accessed: $ /sbin/udevd --debug ... static_dev_create_from_modules: mknod '/dev/cpu/microcode' c10:184 static_dev_create_from_modules: mknod '/dev/fuse' c10:229 static_dev_create_from_modules: mknod '/dev/ppp' c108:0 static_dev_create_from_modules: mknod '/dev/net/tun' c10:200 static_dev_create_from_modules: mknod '/dev/mapper/control' c10:235 udev_rules_apply_static_dev_perms: chmod '/dev/net/tun' 0666 udev_rules_apply_static_dev_perms: chmod '/dev/fuse' 0666 A few device nodes are switched to statically allocated numbers, to allow the static nodes to work. This might also useful for systems which still run a plain static /dev, which is completely unsafe to use with any dynamic minor numbers. Note: The devname aliases must be limited to the *common* and *single*instance* device nodes, like the misc devices, and never be used for conceptually limited systems like the loop devices, which should rather get fixed properly and get a control node for losetup to talk to, instead of creating a random number of device nodes in advance, regardless if they are ever used. This facility is to hide the mess distros are creating with too modualized kernels, and just to hide that these modules are not compiled-in, and not to paper-over broken concepts. Thanks! :) Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: David S. Miller <davem@davemloft.net> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Chris Mason <chris.mason@oracle.com> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Cc: Ian Kent <raven@themaw.net> Signed-Off-By: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-05-25ieee1394: schedule for removalStefan Richter1-0/+10
All application domains that are supported by the old ieee1394 driver stack are supported by the newer firewire driver stack too. There is now good and extensive experience with the newer stack from deployment in Fedora since F7 as well as by enthusiast users of other distributions. The new drivers have consequently been recommended as the default ones since 2.6.33, in order to fix some severe usability problems of FireWire on Linux due to limitations of the old stack. It is now high time to announce when the obsolete drivers will be removed. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Jarod Wilson <jarod@redhat.com>
2010-05-25Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds2-2/+97
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: spi/xilinx: Fix compile error spi/davinci: Fix clock prescale factor computation spi: move bitbang txrx utility functions to private header spi/mpc5121: Add SPI master driver for MPC5121 PSC powerpc/mpc5121: move PSC FIFO memory init to platform code spi/ep93xx: implemented driver for Cirrus EP93xx SPI controller Documentation/spi/* compile warning fix spi/omap2_mcspi: Check params before dereference or use spi/omap2_mcspi: add turbo mode support spi/omap2_mcspi: change default DMA_MIN_BYTES value to 160 spi/pl022: fix stop queue procedure spi/pl022: add support for the PL023 derivate spi/pl022: fix up differences between ARM and ST versions spi/spi_mpc8xxx: Do not use map_tx_dma to unmap rx_dma spi/spi_mpc8xxx: Fix QE mode Litte Endian spi/spi_mpc8xxx: fix potential memory corruption.
2010-05-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdogLinus Torvalds4-15/+410
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog: watchdog: Driver for the watchdog timer on Freescale IMX2 (and later) processors. watchdog: s3c2410_wdt - Fix on handling of the request_mem_region fail watchdog: s3c2410_wdt - Add extra option to include watchdog for Samsung SoCs iTCO_wdt: fix TCO V1 timeout values and limits watchdog: twl4030_wdt: Disable watchdog during probing watchdog: update/improve/consolidate watchdog driver watchdog: booke_wdt: fix ioctl status flags watchdog: fix several MODULE_PARM_DESC strings watchdog: bfin: use new common Blackfin watchdog header
2010-05-25Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds1-0/+816
* 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: Ensure inode allocation buffers are fully replayed xfs: enable background pushing of the CIL xfs: forced unmounts need to push the CIL xfs: Introduce delayed logging core code xfs: Delayed logging design documentation xfs: Improve scalability of busy extent tracking xfs: make the log ticket ID available outside the log infrastructure xfs: clean up log ticket overrun debug output xfs: Clean up XFS_BLI_* flag namespace xfs: modify buffer item reference counting xfs: allow log ticket allocation to take allocation flags xfs: Don't reuse the same transaction ID for duplicated transactions.
2010-05-25mm: compaction: add a tunable that decides when memory should be compacted ↵Mel Gorman1-0/+15
and when it should be reclaimed The kernel applies some heuristics when deciding if memory should be compacted or reclaimed to satisfy a high-order allocation. One of these is based on the fragmentation. If the index is below 500, memory will not be compacted. This choice is arbitrary and not based on data. To help optimise the system and set a sensible default for this value, this patch adds a sysctl extfrag_threshold. The kernel will only compact memory if the fragmentation index is above the extfrag_threshold. [randy.dunlap@oracle.com: Fix build errors when proc fs is not configured] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Rik van Riel <riel@redhat.com> Cc: Minchan Kim <minchan.kim@gmail.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25mm: compaction: add /sys trigger for per-node memory compactionMel Gorman1-0/+7
Add a per-node sysfs file called compact. When the file is written to, each zone in that node is compacted. The intention that this would be used by something like a job scheduler in a batch system before a job starts so that the job can allocate the maximum number of hugepages without significant start-up cost. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Rik van Riel <riel@redhat.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25mm: compaction: add /proc trigger for memory compactionMel Gorman1-0/+10
Add a proc file /proc/sys/vm/compact_memory. When an arbitrary value is written to the file, all zones are compacted. The expected user of such a trigger is a job scheduler that prepares the system before the target application runs. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Rik van Riel <riel@redhat.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25mempolicy: document cpuset interaction with tmpfs mpol mount optionLee Schermerhorn1-1/+9
Update Documentation/filesystems/tmpfs.txt to describe the interaction of tmpfs mount option memory policy with tasks' cpuset mems_allowed. Note: the mount(8) man page [in the util-linux-ng package] requires similiar updates. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: Ravikiran Thirumalai <kiran@scalex86.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-25watchdog: update/improve/consolidate watchdog driverRandy Dunlap4-15/+410
Move the limited watchdog driver help from kernel-parameters.txt to Documentation/watchdog/watchdog-parameters.txt and add info to it for all watchdog drivers except the ones that have driver-specific files already. Correct minor comments and MODULE_PARM_DESC() text in 2 places. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2010-05-25Merge remote branch 'origin' into secretlab/next-spiGrant Likely162-1508/+7466
2010-05-25spi/ep93xx: implemented driver for Cirrus EP93xx SPI controllerMika Westerberg1-0/+95
This patch adds an SPI master driver for the Cirrus EP93xx SPI controller found in EP93xx chips. Signed-off-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Acked-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-25Documentation/spi/* compile warning fixPrarit Bhargava1-2/+2
Fix this warning: Documentation/spi/spidev_fdx.c: In function `do_msg': Documentation/spi/spidev_fdx.c:61: warning: cast from pointer to integer of different size Documentation/spi/spidev_fdx.c:64: warning: cast from pointer to integer of different size buf should be unsigned long to match native arch on 32-bit x86 compile. Signed-off-by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2010-05-24Merge branch 'delayed-logging-for-2.6.35' into for-linusAlex Elder1-0/+816
2010-05-24xfs: Delayed logging design documentationDave Chinner1-0/+816
Document the design of the delayed logging implementation. This includes assumptions made, dead ends followed, the reasoning behind the structuring of the code, the layout of various structures, how things fit together, traps and pit-falls avoided, etc. This is all too much to document in the code itself, so do it in a separate file. Signed-off-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Alex Elder <aelder@sgi.com>
2010-05-24Merge git://git.infradead.org/battery-2.6Linus Torvalds1-0/+20
* git://git.infradead.org/battery-2.6: ds2760_battery: Document ABI change ds2760_battery: Make charge_now and charge_full writeable power_supply: Add support for writeable properties power_supply: Use attribute groups power_supply: Add test_power driver tosa_battery: Fix build error due to direct driver_data usage wm97xx_battery: Quieten sparse warning (bat_set_pdata not declared) ds2782_battery: Get rid of magic numbers in driver_data ds2782_battery: Add support for ds2786 battery gas gauge pda_power: Add function callbacks for suspend and resume wm831x_power: Use genirq Driver for Zipit Z2 battery chip ds2782_battery: Fix clientdata on removal
2010-05-24Documentation: update SubmitChecklist for O=objdir and kconfig testingRandy Dunlap1-0/+12
Add build testing using 'O=builddir'. Add build testing with various kconfig symbols disabled, listing common ones that are known to cause build problems. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Documentation/vm: use better value for MAP_HUGETLBCarlo Marcelo Arenas Belon1-1/+1
documentation: slightly more correct value for MAP_HUGETLB in map_hugetlb.c still not correct for alpha, mips, parisc or xtensa but working out of the box in the most common architectures without having to deal with complicated macros or including architecture specific headers. Signed-off-by: Carlo Marcelo Arenas Belon <carenas@sajinet.com.pe> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Documentation/timers/hpet_example: drop duplicate header filesAndrea Gelmini1-2/+0
Documentation/timers/hpet_example.c: fcntl.h is included more than once. Documentation/timers/hpet_example.c: signal.h is included more than once. Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Documentation/development-process: add staging & mmotm infoRandy Dunlap1-6/+8
Update explanation of mmotm. Add explanation of drivers/staging/. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24Documentation/development-process: add maintainers and git infoRandy Dunlap2-4/+13
Add info on maintainers and persistent posting. Update git home page. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-24docbook: make mtd nand module init staticH Hartley Sweeten1-1/+1
In the example the module_init function should be static. Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-05-22Merge branch 'linux-next' of ↵Linus Torvalds3-282/+1045
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (36 commits) PCI: hotplug: pciehp: Removed check for hotplug of display devices PCI: read memory ranges out of Broadcom CNB20LE host bridge PCI: Allow manual resource allocation for PCI hotplug bridges x86/PCI: make ACPI MCFG reserved error messages ACPI specific PCI hotplug: Use kmemdup PM/PCI: Update PCI power management documentation PCI: output FW warning in pci_read/write_vpd PCI: fix typos pci_device_dis/enable to pci_dis/enable_device in comments PCI quirks: disable msi on AMD rs4xx internal gfx bridges PCI: Disable MSI for MCP55 on P5N32-E SLI x86/PCI: irq and pci_ids patch for additional Intel Cougar Point DeviceIDs PCI: aerdrv: trivial cleanup for aerdrv_core.c PCI: aerdrv: trivial cleanup for aerdrv.c PCI: aerdrv: introduce default_downstream_reset_link PCI: aerdrv: rework find_aer_service PCI: aerdrv: remove is_downstream PCI: aerdrv: remove magical ROOT_ERR_STATUS_MASKS PCI: aerdrv: redefine PCI_ERR_ROOT_*_SRC PCI: aerdrv: rework do_recovery PCI: aerdrv: rework get_e_source() ...
2010-05-22Merge git://git.infradead.org/iommu-2.6Linus Torvalds1-0/+4
* git://git.infradead.org/iommu-2.6: intel-iommu: Set a more specific taint flag for invalid BIOS DMAR tables intel-iommu: Combine the BIOS DMAR table warning messages panic: Add taint flag TAINT_FIRMWARE_WORKAROUND ('I') panic: Allow warnings to set different taint flags intel-iommu: intel_iommu_map_range failed at very end of address space intel-iommu: errors with smaller iommu widths intel-iommu: Fix boot inside 64bit virtualbox with io-apic disabled intel-iommu: use physfn to search drhd for VF intel-iommu: Print out iommu seq_id intel-iommu: Don't complain that ACPI_DMAR_SCOPE_TYPE_IOAPIC is not supported intel-iommu: Avoid global flushes with caching mode. intel-iommu: Use correct domain ID when caching mode is enabled intel-iommu mistakenly uses offset_pfn when caching mode is enabled intel-iommu: use for_each_set_bit() intel-iommu: Fix section mismatch dmar_ir_support() uses dmar_tbl.
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