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2009-12-16Merge branch 'for-2.6.33' of git://linux-nfs.org/~bfields/linuxLinus Torvalds11-15/+30
* 'for-2.6.33' of git://linux-nfs.org/~bfields/linux: (42 commits) nfsd: remove pointless paths in file headers nfsd: move most of nfsfh.h to fs/nfsd nfsd: remove unused field rq_reffh nfsd: enable V4ROOT exports nfsd: make V4ROOT exports read-only nfsd: restrict filehandles accepted in V4ROOT case nfsd: allow exports of symlinks nfsd: filter readdir results in V4ROOT case nfsd: filter lookup results in V4ROOT case nfsd4: don't continue "under" mounts in V4ROOT case nfsd: introduce export flag for v4 pseudoroot nfsd: let "insecure" flag vary by pseudoflavor nfsd: new interface to advertise export features nfsd: Move private headers to source directory vfs: nfsctl.c un-used nfsd #includes lockd: Remove un-used nfsd headers #includes s390: remove un-used nfsd #includes sparc: remove un-used nfsd #includes parsic: remove un-used nfsd #includes compat.c: Remove dependence on nfsd private headers ...
2009-12-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds1-0/+2
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (26 commits) net: sh_eth alignment fix for sh7724 using NET_IP_ALIGN V2 ixgbe: allow tx of pre-formatted vlan tagged packets ixgbe: Fix 82598 premature copper PHY link indicatation ixgbe: Fix tx_restart_queue/non_eop_desc statistics counters bcm63xx_enet: fix compilation failure after get_stats_count removal packet: dont call sleeping functions while holding rcu_read_lock() tcp: Revert per-route SACK/DSACK/TIMESTAMP changes. ipvs: zero usvc and udest netfilter: fix crashes in bridge netfilter caused by fragment jumps ipv6: reassembly: use seperate reassembly queues for conntrack and local delivery sky2: leave PCI config space writeable sky2: print Optima chip name x25: Update maintainer. ipvs: fix synchronization on connection close netfilter: xtables: document minimal required version drivers/net/bonding/: : use pr_fmt can: CAN_MCP251X should depend on HAS_DMA drivers/net/usb: Correct code taking the size of a pointer drivers/net/cpmac.c: Correct code taking the size of a pointer drivers/net/sfc: Correct code taking the size of a pointer ...
2009-12-16Merge branch 'for-linus' of ↵Linus Torvalds1-5/+5
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (45 commits) RDMA/cxgb3: Fix error paths in post_send and post_recv RDMA/nes: Fix stale ARP issue RDMA/nes: FIN during MPA startup causes timeout RDMA/nes: Free kmap() resources RDMA/nes: Check for zero STag RDMA/nes: Fix Xansation test crash on cm_node ref_count RDMA/nes: Abnormal listener exit causes loopback node crash RDMA/nes: Fix crash in nes_accept() RDMA/nes: Resource not freed for REJECTed connections RDMA/nes: MPA request/response error checking RDMA/nes: Fix query of ORD values RDMA/nes: Fix MAX_CM_BUFFER define RDMA/nes: Pass correct size to ioremap_nocache() RDMA/nes: Update copyright and branding string RDMA/nes: Add max_cqe check to nes_create_cq() RDMA/nes: Clean up struct nes_qp RDMA/nes: Implement IB_SIGNAL_ALL_WR as an iWARP extension RDMA/nes: Add additional SFP+ PHY uC status check and PHY reset RDMA/nes: Correct fast memory registration implementation IB/ehca: Fix error paths in post_send and post_recv ...
2009-12-16Merge branch 'next' of ↵Linus Torvalds1-0/+93
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: ppc440spe-adma: adds updated ppc440spe adma driver iop-adma.c: use resource_size() dmaengine: clarify the meaning of the DMA_CTRL_ACK flag sh: stylistic improvements for the DMA driver dmaengine: fix dmatest to verify minimum transfer length and test buffer size sh: DMA driver has to specify its alignment requirements Add COH 901 318 DMA block driver v5
2009-12-16Merge branch 'for_linus' of ↵Linus Torvalds18-28/+1157
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (116 commits) V4L/DVB (13698): pms: replace asm/uaccess.h to linux/uaccess.h V4L/DVB (13690): radio/si470x: #include <sched.h> V4L/DVB (13688): au8522: modify the attributes of local filter coefficients V4L/DVB (13687): cx231xx: use NULL when pointer is needed V4L/DVB: Davinci VPFE Capture: remove unused #include <linux/version.h> V4L/DVB (13685): Correct code taking the size of a pointer V4L/DVB (13684): Fix some cut-and-paste noise in dib0090.h V4L/DVB (13683): sanio-ms: clean up init, exit and id_table V4L/DVB (13682): dib8000: make some constant static V4L/DVB: lgs8gxx: Use shifts rather than multiply/divide when possible V4L/DVB (13680b): DocBook/media: create links for included sources V4L/DVB (13680a): DocBook/media: copy images after building HTML V4L/DVB (13678): Add support for yet another DvbWorld, TeVii and Prof USB devices V4L/DVB (13676): configurable IRQ mode on NetUP Dual DVB-S2 CI; IRQ from CAM processing (CI interface works faster) V4L/DVB (13674): stv090x: Add DiSEqC envelope mode V4L/DVB (13673): lnbp21: Implement 22 kHz tone control V4L/DVB (13671): sh_mobile_ceu_camera: Remove frame size page alignment V4L/DVB (13670): soc-camera: Add mt9t112 camera driver V4L/DVB (13669): tw9910: Add sync polarity support V4L/DVB (13668): tw9910: remove cropping ...
2009-12-16seq_file: use proc_create() in documentationAlexey Dobriyan1-3/+1
Using create_proc_entry() + ->proc_fops assignment is racy because ->proc_fops will be NULL for some time, use proc_create() to avoid race. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16proc: remove docbook and exampleAlexey Dobriyan3-841/+3
Example is outdated, it still uses old ->read_proc interfaces and "fb" example is plain racy. There are better examples all over the tree. Docbook itself says almost nothing about /proc and contain quite a number of simply wrong facts, e.g. device nodes support. What it does is describing at great length interface which are going to be removed. There are Documentation/filesystems/seq_file.txt in exchange. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Erik Mouw <mouw@nl.linux.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16doc: SubmitChecklist, add ioctls, remove OSDL referenceRandy Dunlap1-1/+4
If a patch adds ioctls, then Documentation/ioctl/ioctl-number.txt should also be updated. Remove reference to the OSDL PLM build farm. Signed-off-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>
2009-12-16viafb: documentation updateHarald Welte1-11/+1
We now support the VX855, and the VX800 is no longer unaccellerated. viafb_video_dev was removed as it was useless. Signed-off-by: Harald Welte <HaraldWelte@viatech.com> Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de> Cc: Joseph Chan <JosephChan@via.com.tw> Cc: Scott Fang <ScottFang@viatech.com.cn> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16gpiolib: add support for changing value polarity in sysfsJani Nikula1-0/+15
Drivers may use gpiolib sysfs as part of their public user space interface. The GPIO number and polarity might change from board to board. The gpio_export_link() call can be used to hide the GPIO number from user space. Add support for also hiding the GPIO line polarity changes from user space. Signed-off-by: Jani Nikula <ext-jani.1.nikula@nokia.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16vt: make the default cursor shape configurableClemens Ladisch1-0/+5
For embedded systems, the blinking cursor at startup time can be annoying and unintended. Add a new kernel parameter to change the default cursor shape. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Cc: Daniel Mack <daniel@caiaq.de> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: David Newall <davidn@davidnewall.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16V4L/DVB (13680b): DocBook/media: create links for included sourcesBen Hutchings1-2/+11
If docs are being built in a separate directory, xmlto and xsltproc can't find included sources. Make links back to the source directory. I would much prefer to have xmlto and xsltproc look in the source directory for included entities but couldn't see how to do that. This needs to be solved in some way for 2.6.32, even if this patch isn't the right way to do it. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13680a): DocBook/media: copy images after building HTMLBen Hutchings1-5/+5
The rule for %.html removes the output directory, so there is no point in copying images before building HTML. Documentation/DocBook/Makefile | 10 +++++----- Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13651): sh_mobile_ceu_camera: document the scaling and cropping ↵Guennadi Liakhovetski1-0/+157
algorithm The sh_mobile_ceu_camera driver implements an advanced algorithm, combining scaling and cropping on the client and on the host. Due to its complexity the algorithm deserves separate documentation. create mode 100644 Documentation/video4linux/sh_mobile_ceu_camera.txt Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-15Merge branch 'master' of ↵David S. Miller1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/kaber/nf-2.6
2009-12-16V4L/DVB (13619): v4l2-spec: Adds EBUSY error code for S_STD and QUERYSTD ioctlsMuralidharan Karicheri2-0/+12
During review of Video Timing API documentation, Hans Verkuil had a comment on adding EBUSY error code for VIDIOC_S_STD and VIDIOC_QUERYSTD ioctls. This patch updates the document for this. Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13573): v4l2-spec: updated revision history, updated version to 2.6.33.Hans Verkuil2-6/+32
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13572): v4l2-spec: Digital Video Timings API documentationMuralidharan Karicheri11-4/+903
This patch updates the v4l2-dvb documentation for the new video timings API added. Also updated the document based on comments from Hans Verkuil. Signed-off-by: Muralidharan Karicheri <m-karicheri2@ti.com> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13562): gspca - doc: Update webcam list.Jean-Francois Moine1-10/+24
Signed-off-by: Jean-Francois Moine <moinejf@free.fr> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-16V4L/DVB (13549): v4l: Add video_device_node_name functionLaurent Pinchart1-2/+14
Many drivers access the device number (video_device::v4l2_devnode::num) in order to print the video device node name. Add and use a helper function to retrieve the video_device node name. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-12-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dmLinus Torvalds1-5/+55
* git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm: (80 commits) dm snapshot: use merge origin if snapshot invalid dm snapshot: report merge failure in status dm snapshot: merge consecutive chunks together dm snapshot: trigger exceptions in remaining snapshots during merge dm snapshot: delay merging a chunk until writes to it complete dm snapshot: queue writes to chunks being merged dm snapshot: add merging dm snapshot: permit only one merge at once dm snapshot: support barriers in snapshot merge target dm snapshot: avoid allocating exceptions in merge dm snapshot: rework writing to origin dm snapshot: add merge target dm exception store: add merge specific methods dm snapshot: create function for chunk_is_tracked wait dm snapshot: make bio optional in __origin_write dm mpath: reject messages when device is suspended dm: export suspended state to targets dm: rename dm_suspended to dm_suspended_md dm: swap target postsuspend call and setting suspended flag dm crypt: add plain64 iv ...
2009-12-15lis3: update documentation to match latest changesSamu Onkalo1-7/+24
[akpm@linux-foundation.org: s/q/g/ (Randy)] Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Acked-by: Éric Piel <Eric.Piel@tremplin-utc.net> Cc: Pavel Machek <pavel@ucw.cz> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15lis3: update documentation and commentsÉric Piel1-10/+14
Most of the documentation and comments were written when the driver was only supporting one type of chip, only via ACPI/HP. Update the info to the much clearer understanding that we have now. Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net> Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com> Cc: Pavel Machek <pavel@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15hwmon: w83627ehf updatesDaniel J Blueman1-2/+8
Add control of fan minimum turn-on output levels, decoupling it from the fan turn-off output level. Add control of rate of change of fan output level. These in turn allow lower turn-off rotor speed and smoother transitions for better thermal and acoustic control authority. Add support for constant fan speed and proportional-response operations modes. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Daniel J Blueman <daniel.blueman@gmail.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: David Hubbard <david.c.hubbard@gmail.com> Cc: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15kallsyms: remove deprecated print_fn_descriptor_symbol()Amerigo Wang1-9/+0
According to feature-removal-schedule.txt, it is the time to remove print_fn_descriptor_symbol(). And a quick grep shows that it no longer has any callers. Signed-off-by: WANG Cong <amwang@redhat.com> Cc: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15ad525x_dpot: new driver for AD525x digital potentiometersMichael Hennerich1-0/+57
This driver supports the non-volatile digital potentiometers via I2C: AD5258, AD5259, AD5251, AD5252, AD5253, AD5254, and AD5255 It provides a sysfs interface to each device for reading/writing which is documented in Documentation/misc-devices/ad525x_dpot.txt. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Chris Verges <chrisv@cyberswitching.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15procfs: allow threads to rename siblings via /proc/pid/tasks/tid/commjohn stultz1-0/+9
Setting a thread's comm to be something unique is a very useful ability and is helpful for debugging complicated threaded applications. However currently the only way to set a thread name is for the thread to name itself via the PR_SET_NAME prctl. However, there may be situations where it would be advantageous for a thread dispatcher to be naming the threads its managing, rather then having the threads self-describe themselves. This sort of behavior is available on other systems via the pthread_setname_np() interface. This patch exports a task's comm via proc/pid/comm and proc/pid/task/tid/comm interfaces, and allows thread siblings to write to these values. [akpm@linux-foundation.org: cleanups] Signed-off-by: John Stultz <johnstul@us.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Arjan van de Ven <arjan@infradead.org> Cc: Mike Fulton <fultonm@ca.ibm.com> Cc: Sean Foley <Sean_Foley@ca.ibm.com> Cc: Darren Hart <dvhltc@us.ibm.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15nommu: fix malloc performance by adding uninitialized flagJie Zhang1-0/+26
The NOMMU code currently clears all anonymous mmapped memory. While this is what we want in the default case, all memory allocation from userspace under NOMMU has to go through this interface, including malloc() which is allowed to return uninitialized memory. This can easily be a significant performance penalty. So for constrained embedded systems were security is irrelevant, allow people to avoid clearing memory unnecessarily. This also alters the ELF-FDPIC binfmt such that it obtains uninitialised memory for the brk and stack region. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Greg Ungerer <gerg@snapgear.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15ksm: remove unswappable max_kernel_pagesHugh Dickins1-15/+7
Now that ksm pages are swappable, and the known holes plugged, remove mention of unswappable kernel pages from KSM documentation and comments. Remove the totalram_pages/4 initialization of max_kernel_pages. In fact, remove max_kernel_pages altogether - we can reinstate it if removal turns out to break someone's script; but if we later want to limit KSM's memory usage, limiting the stable nodes would not be an effective approach. Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: Izik Eidus <ieidus@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Chris Wright <chrisw@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15Documentation: ABI: /sys/devices/system/cpu/cpu#/nodeAlex Chiang1-0/+14
Describe NUMA node symlink created for CPUs when CONFIG_NUMA is set. Signed-off-by: Alex Chiang <achiang@hp.com> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Gary Hade <garyhade@us.ibm.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: David Rientjes <rientjes@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15mm: add numa node symlink for memory section in sysfsAlex Chiang2-5/+20
Commit c04fc586c (mm: show node to memory section relationship with symlinks in sysfs) created symlinks from nodes to memory sections, e.g. /sys/devices/system/node/node1/memory135 -> ../../memory/memory135 If you're examining the memory section though and are wondering what node it might belong to, you can find it by grovelling around in sysfs, but it's a little cumbersome. Add a reverse symlink for each memory section that points back to the node to which it belongs. Signed-off-by: Alex Chiang <achiang@hp.com> Cc: Gary Hade <garyhade@us.ibm.com> Cc: Badari Pulavarty <pbadari@us.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: David Rientjes <rientjes@google.com> Cc: Greg KH <greg@kroah.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: David Rientjes <rientjes@google.com> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15hugetlb: handle memory hot-plug eventsLee Schermerhorn1-1/+2
Register per node hstate attributes only for nodes with memory. As suggested by David Rientjes. With Memory Hotplug, memory can be added to a memoryless node and a node with memory can become memoryless. Therefore, add a memory on/off-line notifier callback to [un]register a node's attributes on transition to/from memoryless state. N.B., Only tested build, boot, libhugetlbfs regression. i.e., no memory hotplug testing. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Reviewed-by: Andi Kleen <andi@firstfloor.org> Acked-by: David Rientjes <rientjes@google.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Nishanth Aravamudan <nacc@us.ibm.com> Cc: Adam Litke <agl@us.ibm.com> Cc: Andy Whitcroft <apw@canonical.com> Cc: Eric Whitney <eric.whitney@hp.com> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15hugetlb: use only nodes with memory for huge pagesLee Schermerhorn1-6/+6
Register per node hstate sysfs attributes only for nodes with memory. Global replacement of 'all online nodes" with "all nodes with memory" in mm/hugetlb.c. Suggested by David Rientjes. A subsequent patch will handle adding/removing of per node hstate sysfs attributes when nodes transition to/from memoryless state via memory hotplug. NOTE: this patch has not been tested with memoryless nodes. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Reviewed-by: Andi Kleen <andi@firstfloor.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Nishanth Aravamudan <nacc@us.ibm.com> Acked-by: David Rientjes <rientjes@google.com> Cc: Adam Litke <agl@us.ibm.com> Cc: Andy Whitcroft <apw@canonical.com> Cc: Eric Whitney <eric.whitney@hp.com> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15hugetlb: update hugetlb documentation for NUMA controlsLee Schermerhorn1-85/+176
Update the kernel huge tlb documentation to describe the numa memory policy based huge page management. Additionaly, the patch includes a fair amount of rework to improve consistency, eliminate duplication and set the context for documenting the memory policy interaction. Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Mel Gorman <mel@csn.ul.ie> Reviewed-by: Andi Kleen <andi@firstfloor.org> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Nishanth Aravamudan <nacc@us.ibm.com> Cc: Adam Litke <agl@us.ibm.com> Cc: Andy Whitcroft <apw@canonical.com> Cc: Eric Whitney <eric.whitney@hp.com> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15page-types: exit early when invoked with -d|--describeAlex Chiang1-2/+1
On a system with large amount of memory (256GB), invoking page-types can take quite a long time, which is unreasonable considering the user only wants a description of the flags: # time ./page-types -d 0x10 0x0000000000000010 ____D_____________________________ dirty real 0m34.285s user 0m1.966s sys 0m32.313s This is because we still walk the entire address range. Exiting early seems like a reasonble solution: # time ./page-types -d 0x10 0x0000000000000010 ____D_____________________________ dirty real 0m0.007s user 0m0.001s sys 0m0.005s Signed-off-by: Alex Chiang <achiang@hp.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Haicheng Li <haicheng.li@intel.com> Acked-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15page-types: whitespace alignmentAlex Chiang1-23/+23
Align the output when page-type -h is invoked. Signed-off-by: Alex Chiang <achiang@hp.com> Acked-by: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15page-types: learn to describe flags directly from command lineAlex Chiang1-1/+20
Teach page-types to describe page flags directly from the command line. Why is this useful? For instance, if you're using memory hotplug and see this in /var/log/messages: kernel: removing from LRU failed 3836dd0/1/1e00000000000010 It would be nice to decode those page flags without staring at the source. Example usage and output: # Documentation/vm/page-types -d 0x10 0x0000000000000010 ____D_____________________________ dirty # Documentation/vm/page-types -d anon 0x0000000000001000 ____________a_____________________ anonymous # Documentation/vm/page-types -d anon,0x10 0x0000000000001010 ____D_______a_____________________ dirty,anonymous [achiang@hp.com: documentation] Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Haicheng Li <haicheng.li@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15page-types: unsigned cannot be less than 0 in add_page()Roel Kluin1-1/+1
If not signed, testing of the read() return value in this function will not work. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Cc: Wu Fengguang <fengguang.wu@intel.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-15page-types: constify read only arraysTommi Rantala1-3/+3
Signed-off-by: Tommi Rantala <tt.rantala@gmail.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Wu Fengguang <fengguang.wu@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-14Merge branch 'i2c-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging * 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: i2c-core: i2c bus should support PM entries in struct dev_pm_ops i2c: Get rid of I2C_CLIENT_MODULE_PARM i2c: Drop I2C_CLIENT_INSMOD_2 to 8 i2c: Drop I2C_CLIENT_INSMOD_1 i2c: Get rid of struct i2c_client_address_data i2c: Drop the kind parameter from detect callbacks
2009-12-14Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds2-7/+31
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, mce: Clean up thermal init by introducing intel_thermal_supported() x86, mce: Thermal monitoring depends on APIC being enabled x86: Gart: fix breakage due to IOMMU initialization cleanup x86: Move swiotlb initialization before dma32_free_bootmem x86: Fix build warning in arch/x86/mm/mmio-mod.c x86: Remove usedac in feature-removal-schedule.txt x86: Fix duplicated UV BAU interrupt vector nvram: Fix write beyond end condition; prove to gcc copy is safe mm: Adjust do_pages_stat() so gcc can see copy_from_user() is safe x86: Limit the number of processor bootup messages x86: Remove enabling x2apic message for every CPU doc: Add documentation for bootloader_{type,version} x86, msr: Add support for non-contiguous cpumasks x86: Use find_e820() instead of hard coded trampoline address x86, AMD: Fix stale cpuid4_info shared_map data in shared_cpu_map cpumasks Trivial percpu-naming-introduced conflicts in arch/x86/kernel/cpu/intel_cacheinfo.c
2009-12-14i2c: Get rid of struct i2c_client_address_dataJean Delvare1-1/+1
Struct i2c_client_address_data only contains one field at this point, which makes its usefulness questionable. Get rid of it and pass simple address lists around instead. Signed-off-by: Jean Delvare <khali@linux-fr.org> Tested-by: Wolfram Sang <w.sang@pengutronix.de>
2009-12-14Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds1-4/+68
* 'for-linus' of git://neil.brown.name/md: (27 commits) md: add 'recovery_start' per-device sysfs attribute md: rcu_read_lock() walk of mddev->disks in md_do_sync() md: integrate spares into array at earliest opportunity. md: move compat_ioctl handling into md.c md: revise Kconfig help for MD_MULTIPATH md: add MODULE_DESCRIPTION for all md related modules. raid: improve MD/raid10 handling of correctable read errors. md/raid10: print more useful messages on device failure. md/bitmap: update dirty flag when bitmap bits are explicitly set. md: Support write-intent bitmaps with externally managed metadata. md/bitmap: move setting of daemon_lastrun out of bitmap_read_sb md: support updating bitmap parameters via sysfs. md: factor out parsing of fixed-point numbers md: support bitmap offset appropriate for external-metadata arrays. md: remove needless setting of thread->timeout in raid10_quiesce md: change daemon_sleep to be in 'jiffies' rather than 'seconds'. md: move offset, daemon_sleep and chunksize out of bitmap structure md: collect bitmap-specific fields into one structure. md/raid1: add takeover support for raid5->raid1 md: add honouring of suspend_{lo,hi} to raid1. ...
2009-12-14Documentation: rw_lock lessons learnedWilliam Allen Simpson1-100/+84
In recent months, two different network projects erroneously strayed down the rw_lock path. Update the Documentation based upon comments by Eric Dumazet and Paul E. McKenney in those threads. Further updates await somebody else with more expertise. Changes: - Merged with extensive content by Stephen Hemminger. - Fix one of the comments by Linus Torvalds. Signed-off-by: William.Allen.Simpson@gmail.com Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-14netfilter: xtables: document minimal required versionJan Engelhardt1-0/+2
For both .33 and .32-stable. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> Cc: stable@kernel.org Signed-off-by: Patrick McHardy <kaber@trash.net>
2009-12-14x86: Remove usedac in feature-removal-schedule.txtFUJITA Tomonori1-7/+0
The reason of removal, "replaced by allowdac and no dac combination" is incorrect. There is no way to do the same thing with "allowdac" and "nodac" combination. The usedac option enables us to stop via_no_dac() setting forbid_dac to 1. That is, someone who uses VIA bridges can use DAC with this option even if some of VIA bridges seem to be broken about DAC. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: WANG Cong <amwang@redhat.com> Cc: gcosta@redhat.com LKML-Reference: <20091214104423X.fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-12-14md: add 'recovery_start' per-device sysfs attributeDan Williams1-4/+23
Enable external metadata arrays to manage rebuild checkpointing via a md/dev-XXX/recovery_start attribute which reflects rdev->recovery_offset Also update resync_start_store to allow 'none' to be written, for consistency. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: NeilBrown <neilb@suse.de>
2009-12-14md: Support write-intent bitmaps with externally managed metadata.NeilBrown1-0/+16
In this case, the metadata needs to not be in the same sector as the bitmap. md will not read/write any bitmap metadata. Config must be done via sysfs and when a recovery makes the array non-degraded again, writing 'true' to 'bitmap/can_clear' will allow bits in the bitmap to be cleared again. Signed-off-by: NeilBrown <neilb@suse.de>
2009-12-14md: support updating bitmap parameters via sysfs.NeilBrown1-0/+29
A new attribute directory 'bitmap' in 'md' is created which contains files for configuring the bitmap. 'location' identifies where the bitmap is, either 'none', or 'file' or 'sector offset from metadata'. Writing 'location' can create or remove a bitmap. Adding a 'file' bitmap this way is not yet supported. 'chunksize' and 'time_base' must be set before 'location' can be set. 'chunksize' can be set before creating a bitmap, but is currently always over-ridden by the bitmap superblock. 'time_base' and 'backlog' can be updated at any time. Signed-off-by: NeilBrown <neilb@suse.de> Reviewed-by: Andre Noll <maan@systemlinux.org>
2009-12-12Merge branch 'next' of ↵Linus Torvalds4-1/+41
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (151 commits) powerpc: Fix usage of 64-bit instruction in 32-bit altivec code MAINTAINERS: Add PowerPC patterns powerpc/pseries: Track previous CPPR values to correctly EOI interrupts powerpc/pseries: Correct pseries/dlpar.c build break without CONFIG_SMP powerpc: Make "intspec" pointers in irq_host->xlate() const powerpc/8xx: DTLB Miss cleanup powerpc/8xx: Remove DIRTY pte handling in DTLB Error. powerpc/8xx: Start using dcbX instructions in various copy routines powerpc/8xx: Restore _PAGE_WRITETHRU powerpc/8xx: Add missing Guarded setting in DTLB Error. powerpc/8xx: Fixup DAR from buggy dcbX instructions. powerpc/8xx: Tag DAR with 0x00f0 to catch buggy instructions. powerpc/8xx: Update TLB asm so it behaves as linux mm expects. powerpc/8xx: Invalidate non present TLBs powerpc/pseries: Serialize cpu hotplug operations during deactivate Vs deallocate pseries/pseries: Add code to online/offline CPUs of a DLPAR node powerpc: stop_this_cpu: remove the cpu from the online map. powerpc/pseries: Add kernel based CPU DLPAR handling sysfs/cpu: Add probe/release files powerpc/pseries: Kernel DLPAR Infrastructure ...
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