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2010-02-23perf/scripts: Remove check-perf-trace from listed scriptsTom Zanussi
The check-perf-trace script only checks Perl functionality, and doesn't really need to be listed as as user script anyway. This only removes the '-report' shell script, so although it doesn't appear in the listing, the '-record' shell script and the check perf trace perl script itself is still available and can still be run manually as such: $ libexec/perf-core/scripts/perl/bin/check-perf-trace-record $ perf trace -s libexec/perf-core/scripts/perl/check-perf-trace.pl Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Keiichi KII <k-keiichi@bx.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1264580883-15324-6-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-23perf/scripts: Move Perl scripting files to scripting-engines dirTom Zanussi
Create a scripting-engines directory to contain scripting engine implementation code, in anticipation of the addition of new scripting support. Also removes trace-event-perl.h. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Keiichi KII <k-keiichi@bx.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1264580883-15324-5-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-23perf/scripts: Move common code out of Perl-specific filesTom Zanussi
This stuff is needed by all scripting engines; move it from the Perl engine source to a more common place. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Keiichi KII <k-keiichi@bx.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1264580883-15324-4-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-23perf/scripts: Fix bug in Util.pmTom Zanussi
Fix bogus calculation. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Keiichi KII <k-keiichi@bx.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1264580883-15324-3-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-23perf/scripts: Fix supported language listing optionTom Zanussi
'perf trace -s list' prints a list of the supported scripting languages. One problem with it is that it falls through and prints the trace as well. The use of 'list' for this also makes it easy to confuse with 'perf trace -l', used for listing available scripts. So change 'perf trace -s list' to 'perf trace -s lang' and fixes the fall-through problem. Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Keiichi KII <k-keiichi@bx.jp.nec.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> LKML-Reference: <1264580883-15324-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
2010-02-23parisc: Disable CONFIG_HAVE_ARCH_TRACEHOOKRoland McGrath
> FYI, this commit broke tip:master on PARISC (other architectures are fine): > > kernel/built-in.o: In function `ptrace_request': > (.text.ptrace_request+0x2cc): undefined reference to `task_user_regset_view' This means that parisc failed to meet the documented requirements for setting CONFIG_HAVE_ARCH_TRACEHOOK, but set it anyway. If arch folks don't follow the specs, it defeats the whole purpose of having clear statements of requirements for arch code. Until parisc finishes up its requirements, disable CONFIG_HAVE_ARCH_TRACEHOOK. Signed-off-by: H. Peter Anvin <hpa@zytor.com> LKML-Reference: <20100222183707.8749D64C@magilla.sf.frob.com> Cc: <linux-parisc@vger.kernel.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Helge Deller <deller@gmx.de> Cc: James E.J. Bottomley <jejb@parisc-linux.org>
2010-02-23x86/PCI: use host bridge _CRS info by default on 2008 and newer machinesBjorn Helgaas
The main benefit of using ACPI host bridge window information is that we can do better resource allocation in systems with multiple host bridges, e.g., http://bugzilla.kernel.org/show_bug.cgi?id=14183 Sometimes we need _CRS information even if we only have one host bridge, e.g., https://bugs.launchpad.net/ubuntu/+source/linux/+bug/341681 Most of these systems are relatively new, so this patch turns on "pci=use_crs" only on machines with a BIOS date of 2008 or newer. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: augment bus resource table with a listBjorn Helgaas
Previously we used a table of size PCI_BUS_NUM_RESOURCES (16) for resources forwarded to a bus by its upstream bridge. We've increased this size several times when the table overflowed. But there's no good limit on the number of resources because host bridges and subtractive decode bridges can forward any number of ranges to their secondary buses. This patch reduces the table to only PCI_BRIDGE_RESOURCE_NUM (4) entries, which corresponds to the number of windows a PCI-to-PCI (3) or CardBus (4) bridge can positively decode. Any additional resources, e.g., PCI host bridge windows or subtractively-decoded regions, are kept in a list. I'd prefer a single list rather than this split table/list approach, but that requires simultaneous changes to every architecture. This approach only requires immediate changes where we set up (a) host bridges with more than four windows and (b) subtractive-decode P2P bridges, and we can incrementally change other architectures to use the list. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: add pci_bus_for_each_resource(), remove direct bus->resource[] refsBjorn Helgaas
No functional change; this converts loops that iterate from 0 to PCI_BUS_NUM_RESOURCES through pci_bus resource[] table to use the pci_bus_for_each_resource() iterator instead. This doesn't change the way resources are stored; it merely removes dependencies on the fact that they're in a table. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: read bridge windows before filling in subtractive decode resourcesBjorn Helgaas
No functional change; this fills in the bus subtractive decode resources after reading the bridge window information rather than before. Also, print out the subtractive decode resources as we already do for the positive decode windows. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23PCI: split up pci_read_bridge_bases()Bjorn Helgaas
No functional change; this breaks up pci_read_bridge_bases() into separate pieces for the I/O, memory, and prefetchable memory windows, similar to how Yinghai recently split up pci_setup_bridge() in 68e84ff3bdc. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-02-23usb/gadget/{f_audio,gmidi}.c: follow recent changes in audio.hDaniel Mack
Some structs in linux/usb/audio.h have got new names to mark them as part of version 1.0 of the USB audio standard. Follow these changes in the gadget drivers. Note that this header and the ALSA USB driver will undergo some refactoring soon, so there might be another update to the gadgets as well. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23ASoC: fsi: Modify over/under run error settlementKuninori Morimoto
In current FSI driver, playback function cares only overrun, and capture function cares only underrun. But playback function should had cared about underrun, and capture function should had cared about overrun too. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-02-23ASoC: OMAP4: Add McPDM platform driverMisael Lopez Cruz
McPDM platform driver is configured to use sDMA in order to transfer to/from memory. Support for interfacing with ABE will be added later. McPDM dai currently supports up to 4 downlink channels and 2 uplink channels simultaneously, as well as 88.2 and 96 KHz, and a sample size of 32 bits. Signed-off-by: Misael Lopez Cruz <x0052729@ti.com> Signed-off-by: Margarita Olaya <x0080101@ti.com> Signed-off-by: Jorge Eduardo Candelaria <jorge.candelaria@ti.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-02-23ASoC: OMAP4: Add support for McPDMCandelaria Villareal, Jorge
McPDM is the interface between Phoenix audio codec and the OMAP4430 processor. It enables data to be transfered to/from Phoenix at sample rates of 88.4 or 96 KHz. Signed-off-by: Jorge Eduardo Candelaria <jorge.candelaria@ti.com> Signed-off-by: Margarita Olaya <x0080101@ti.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-02-23ASoC: OMAP: data_type and sync_mode configurable in audio dmaMisael Lopez Cruz
Allow client drivers to set the data_type (16, 32) and the sync_mode (element, packet, etc) of the audio dma transferences. McBSP dai driver configures it for a data type of 16 bits and element sync mode. Signed-off-by: Misael Lopez Cruz <x0052729@ti.com> Signed-off-by: Jorge Eduardo Candelaria <jorge.candelaria@ti.com> Acked-by: Liam Girdwood <lrg@slimlogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-02-23ALSA: hda - Add missing description in HD-Audio-Models.txtTakashi Iwai
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23ALSA: add support for Macbook Air 2,1 internal speakerReimundo Heluani
Add support for Macbook Air 2,1 (late 2008) internal speaker and headphones. Create a "mba21" model for snd-hda-intel. Signed-off-by: Reimundo Heluani <rheluani@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23Merge branch 'master' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6
2010-02-23tc35815: Remove a wrong netif_wake_queue() call which triggers BUG_ONAtsushi Nemoto
The netif_wake_queue() is called correctly (i.e. only on !txfull condition) from txdone routine. So Unconditional call to the netif_wake_queue() here is wrong. This might cause calling of start_xmit routine on txfull state and trigger BUG_ON. This bug does not happen when NAPI disabled. After txdone there must be at least one free tx slot. But with NAPI, this is not true anymore and the BUG_ON can hits on heavy load. In this driver NAPI was enabled on 2.6.33-rc1 so this is regression from 2.6.32 kernel. Reported-by: Ralf Roesch <ralf.roesch@rw-gmbh.de> Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23cdc_ether: new PID for Ericsson C3607w to the whitelist (resubmit)Torgny Johansson
This patch adds a new vid/pid to the cdc_ether whitelist. Device added: - Ericsson Mobile Broadband variant C3607w Signed-off-by: Torgny Johansson <torgny.johansson@gmail.com> -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23IPv6: better document max_addresses parameterBrian Haley
Andrew Morton wrote: >> >From ip-sysctl.txt file in kernel documentation I can see following description >> for max_addresses: >> max_addresses - INTEGER >> Number of maximum addresses per interface. 0 disables limitation. >> It is recommended not set too large value (or 0) because it would >> be too easy way to crash kernel to allow to create too much of >> autoconfigured addresses. ^^^^^^^^^^^^^^ >> If this parameter applies only for auto-configured IP addressed, please state >> it more clearly in docs or rename the parameter to show that it refers to >> auto-configuration. It did mention autoconfigured in the text, but the below makes it more obvious. More clearly document IPv6 max_addresses parameter. Signed-off-by: Brian Haley <brian.haley@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23MAINTAINERS: update mv643xx_eth maintenance statusLennert Buytenhek
I am no longer with Marvell. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23e1000: Fix DMA mapping error handling on RXAnton Blanchard
Check for error return from pci_map_single/pci_map_page and clean up. With this and the previous patch the driver was able to handle a significant percentage of errors (I set the fault injection rate to 10% and could still download large files at a reasonable speed). Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-02-23blk-core: use BIO list management functionsAkinobu Mita
Now that the bio list management stuff is generic, convert generic_make_request to use bio lists instead of its own private bio list implementation. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-02-23ALSA: usbaudio: consolidate header filesDaniel Mack
Use the definitions from linux/usb/audio.h all over the ALSA USB audio driver and add some missing definitions there as well. Use the endpoint attribute macros from linux/usb/ch9 and remove the own things from sound/usb/usbaudio.h. Now things are also nicely prefixed which makes understanding the code easier. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23Revert "block: improve queue_should_plug() by looking at IO depths"Jens Axboe
This reverts commit fb1e75389bd06fd5987e9cda1b4e0305c782f854. "Benjamin S." <sbenni@gmx.de> reports that the patch in question causes a big drop in sequential throughput for him, dropping from 200MB/sec down to only 70MB/sec. Needs to be investigated more fully, for now lets just revert the offending commit. Conflicts: include/linux/blkdev.h Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-02-23ALSA: usbmixer: bail out early when parsing audio class v2 descriptorsDaniel Mack
This is just a quick hack that needs to be removed once the new units defined by the audio class v2.0 standard are supported. However, it allows using these devices for now, without mixer support. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23ALSA: usbaudio: implement basic set of class v2.0 parserDaniel Mack
This adds a number of parsers for audio class v2.0. In particular, the following internals are different and now handled by the code: * the number of streaming interfaces is now reported by an interface association descriptor. The old approach using a proprietary descriptor is deprecated. * The number of channels per interface is now stored in the AS_GENERAL descriptor (used to be part of the FORMAT_TYPE descriptor). * The list of supported sample rates is no longer stored in a variable length appendix of the format_type descriptor but is retrieved from the device using a class specific GET_RANGE command. * Supported sample formats are now reported as 32bit bitmap rather than a fixed value. For now, this is worked around by choosing just one of them. * A devices needs to have at least one CLOCK_SOURCE descriptor which denotes a clockID that is needed im the class request command. * Many descriptors (format_type, ...) have changed their layout. Handle this by casting the descriptors to the appropriate structs. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23ALSA: usbaudio: introduce new types for audio class v2Daniel Mack
This patch adds some definitions for audio class v2. Unfortunately, the UNIT types PROCESSING_UNIT and EXTENSION_UNIT have different numerical representations in both standards, so there is need for a _V1 add-on now. usbmixer.c is changed accordingly. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23ALSA: usbaudio: parse USB descriptors with structsDaniel Mack
In preparation of support for v2.0 audio class, use the structs from linux/usb/audio.h and add some new ones to describe the fields that are actually parsed by the descriptor decoders. Also, factor out code from usb_create_streams(). This makes it easier to adopt the new iteration logic needed for v2.0. Signed-off-by: Daniel Mack <daniel@caiaq.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23cciss: export linux/cciss_defs.h headerdann frazier
'make headers_check' began to fail after cciss_defs.h was introduced in: 429c42c9d246f5bda868495c09974312a0177328 usr/include/linux/cciss_ioctl.h:6: included file 'linux/cciss_defs.h' is not exported Fix this by exporting cciss_defs.h Signed-off-by: dann frazier <dannf@hp.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2010-02-23ALSA: hda - enable snoop for Intel Cougar PointSeth Heasley
This patch enables snoop, eliminating static during playback. This patch supersedes the previous Cougar Point audio patch. Signed-off-by: Seth Heasley <seth.heasley@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23ALSA: hda - Remove identical definitions for macmini3 modelTakashi Iwai
The channel mode definitions for macmini3 model are identical with mb5. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-23drm/vmwgfx: Fix queries if no dma buffer thrashing is occuring.Thomas Hellstrom
Intercept query commands and apply relocations to their guest pointers. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-02-23Merge remote branch 'nouveau/for-airlied' of ../drm-nouveau-next into drm-linusDave Airlie
* 'nouveau/for-airlied' of ../drm-nouveau-next: drm/nv50: fix vram ptes on IGPs to point at stolen system memory drm/nv50: fix instmem binding on IGPs to point at stolen system memory drm/nv50: improve vram page table construction drm/nv50: more efficient clearing of gpu page table entries drm/nv50: make nv50_mem_vm_{bind,unbind} operate only on vram drm/nouveau: Fix up pre-nv17 analog load detection.
2010-02-23Merge branch 'pcc' into releaseLen Brown
2010-02-23Merge branches 'bugzilla-14207' and 'idle' into releaseLen Brown
2010-02-23sh: wire up SET/GET_UNALIGN_CTL.Paul Mundt
This hooks up the SET/GET_UNALIGN_CTL knobs cribbing the bulk of it from the PPC and ia64 implementations. The thread flags happen to be the logical inverse of what the global fault mode is set to, so this works out pretty cleanly. By default the global fault mode is used, with tasks now being able to override their own settings via prctl(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-22Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: BCM47xx: Fix 128MB RAM support MIPS: Highmem: Fix build error
2010-02-22Merge branch 'parisc/tracehook' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland * 'parisc/tracehook' of git://git.kernel.org/pub/scm/linux/kernel/git/frob/linux-2.6-roland: Revert "parisc: HAVE_ARCH_TRACEHOOK"
2010-02-22fs/exec.c: fix initial stack reservationMichael Neuling
803bf5ec259941936262d10ecc84511b76a20921 ("fs/exec.c: restrict initial stack space expansion to rlimit") attempts to limit the initial stack to 20*PAGE_SIZE. Unfortunately, in attempting ensure the stack is not reduced in size, we ended up not changing the stack at all. This size reduction check is not necessary as the expand_stack call does this already. This caused a regression in UML resulting in most guest processes being killed. Signed-off-by: Michael Neuling <mikey@neuling.org> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Cc: Anton Blanchard <anton@samba.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: Serge Hallyn <serue@us.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jouni Malinen <j@w1.fi> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-22efifb: fix framebuffer handoffMarcin Slusarz
Commit 4410f3910947dcea8672280b3adecd53cec4e85e ("fbdev: add support for handoff from firmware to hw framebuffers") didn't add fb_destroy operation to efifb. Fix it and change aperture_size to match size passed to request_mem_region. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=15151 Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Reported-by: Alex Zhavnerchik <alex.vizor@gmail.com> Tested-by: Alex Zhavnerchik <alex.vizor@gmail.com> Acked-by: Peter Jones <pjones@redhat.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Dave Airlie <airlied@redhat.com> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-22geode-mfgpt: restore previous behavior for selecting IRQJens Rottmann
geode-mfgpt: restore previous behavior for selecting IRQ The MFGPT IRQ used to be, in order of decreasing priority, * IRQ supplied by the user as a boot-time parameter, * IRQ previously set by the BIOS or another driver, * default IRQ given at compile time. Return to this behavior, which got broken when splitting the MFGPT/clocksource driver for 2.6.33-rc1. Signed-off-by: Jens Rottmann <JRottmann@LiPPERTEmbedded.de> Acked-by: Andres Salomon <dilinger@collabora.co.uk> Cc: Jordan Crouse <jordan.crouse@amd.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-22idr: fix a critical misallocation bug, take#2Tejun Heo
This is retry of reverted 859ddf09743a8cc680af33f7259ccd0fd36bfe9d ("idr: fix a critical misallocation bug") which contained two bugs. * pa[idp->layers] should be cleared even if it's not used by sub_alloc() because it's used by mark idr_mark_full(). * The original condition check also assigned pa[l] to p which the new code didn't do thus leaving p pointing at the wrong layer. Both problems have been fixed and the idr code has received good amount testing using userland testing setup where simple bitmap allocator is run parallel to verify the result of idr allocation. The bug this patch fixes is caused by sub_alloc() optimization path bypassing out-of-room condition check and restarting allocation loop with starting value higher than maximum allowed value. For detailed description, please read commit message of 859ddf09. Signed-off-by: Tejun Heo <tj@kernel.org> Based-on-patch-from: Eric Paris <eparis@redhat.com> Reported-by: Eric Paris <eparis@redhat.com> Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Tested-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-22kernel/sys.c: fix missing rcu protection for sys_getpriority()Tetsuo Handa
find_task_by_vpid() is not safe without rcu_read_lock(). 2.6.33-rc7 got RCU protection for sys_setpriority() but missed it for sys_getpriority(). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-22memcg: fix oom killing a child process in an other cgroupKAMEZAWA Hiroyuki
Presently the oom-killer is memcg aware and it finds the worst process from processes under memcg(s) in oom. Then, it kills victim's child first. It may kill a child in another cgroup and may not be any help for recovery. And it will break the assumption users have. This patch fixes it. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Cc: Balbir Singh <balbir@linux.vnet.ibm.com> Reviewed-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp> Acked-by: David Rientjes <rientjes@google.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-23drm/nv50: fix vram ptes on IGPs to point at stolen system memoryBen Skeggs
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-02-23drm/nv50: fix instmem binding on IGPs to point at stolen system memoryBen Skeggs
This also modifies the unused PRAMIN PT entries to be all zeroes, can't really recall why I used 9/0 initially, just that it didn't work for some reason. It was likely masking a bug elsewhere that's since been fixed. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-02-23drm/nv50: improve vram page table constructionBen Skeggs
This commit changes nouveau to construct PTEs which look very much like the ones the binary driver creates. I presume that filling multiple PTEs identically with length flags and the physical address of the start of a block of VRAM is a hint to the memory controller that it need not perform additional page table lookups for that range of addresses. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
generated by cgit (git 2.34.1) at 2025-09-20 11:47:50 +0000