summaryrefslogtreecommitdiffstats
path: root/Documentation
AgeCommit message (Collapse)Author
2008-07-29lguest: turn Waker into a thread, not a processRusty Russell
lguest uses a Waker process to break it out of the kernel (ie. actually running the guest) when file descriptor needs attention. Changing this from a process to a thread somewhat simplifies things: it can directly access the fd_set of things to watch. More importantly, it means that the Waker can see Guest memory correctly, so /dev/vring file descriptors will work as anticipated (the alternative is to actually mmap MAP_SHARED, but you can't do that with /dev/zero). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: Enlarge virtio ringsRusty Russell
With big packets, 128 entries is a little small. Guest -> Host 1GB TCP: Before: 8.43625 seconds xmit 95640 recv 198266 timeout 49771 usec 1252 After: 8.01099 seconds xmit 49200 recv 102263 timeout 26014 usec 2118 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: Use GSO/IFF_VNET_HDR extensions on tun/tapRusty Russell
Guest -> Host 1GB TCP: Before 20.1974 seconds xmit 214510 recv 5 timeout 214491 usec 278 After 8.43625 seconds xmit 95640 recv 198266 timeout 49771 usec 1252 Host -> Guest 1GB TCP: Before: Seconds 9.98854 xmit 172166 recv 5344 timeout 172157 usec 251 After: Seconds 5.72803 xmit 244322 recv 9919 timeout 244302 usec 156 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: Remove 'network: no dma buffer!' warningRusty Russell
This warning can happen a lot under load, and it should be warnx not warn anwyay. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: Adaptive timeoutRusty Russell
Since the correct timeout value varies, use a heuristic which adjusts the timeout depending on how many packets we've seen. This gives slightly worse results, but doesn't need tweaking when GSO is introduced. 500 usec 19.1887 xmit 561141 recv 1 timeout 559657 Dynamic (278) 20.1974 xmit 214510 recv 5 timeout 214491 usec 278 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: Tell Guest net not to notify us on every packet xmitRusty Russell
virtio_ring has the ability to suppress notifications. This prevents a guest exit for every packet, but we need to set a timer on packet receipt to re-check if there were any remaining packets. Here are the times for 1G TCP Guest->Host with different timeout settings (it matters because the TCP window doesn't grow big enough to fill the entire buffer): Timeout value Seconds Xmit/Recv/Timeout None (before) 25.3784 xmit 7750233 recv 1 2500 usec 62.5119 xmit 207020 recv 2 timeout 207020 1000 usec 34.5379 xmit 207003 recv 2 timeout 207003 750 usec 29.2305 xmit 207002 recv 1 timeout 207002 500 usec 19.1887 xmit 561141 recv 1 timeout 559657 250 usec 20.0465 xmit 214128 recv 2 timeout 214110 100 usec 19.2583 xmit 561621 recv 1 timeout 560153 (Note that these values are sensitive to the GSO patches which come later, and probably other traffic-related variables, so take with a large grain of salt). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: net block unneeded receive queue update notificationsRusty Russell
Number of exits transmitting 10GB Guest->Host before: network xmit 7858610 recv 118136 After: network xmit 7750233 recv 1 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: wrap last_avail accesses.Rusty Russell
To simplify the transition to when we publish indices in the ring (and make shuffling my patch queue easier), wrap them in a lg_last_avail() macro. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: virtio-rng supportRusty Russell
This is a simple patch to add support for the virtio "hardware random generator" to lguest. It gets about 1.2 MB/sec reading from /dev/hwrng in the guest. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: Support assigning a MAC addressMark McLoughlin
If you've got a nice DHCP configuration which maps MAC addresses to specific IP addresses, then you're going to want to start your guest with one of those MAC addresses. Also, in Fedora, we have persistent network interface naming based on the MAC address, so with randomly assigned addresses you're soon going to hit eth13. Who knows what will happen then! Allow assigning a MAC address to the network interface with e.g. --tunnet=bridge:eth0:00:FF:95:6B:DA:3D or: --tunnet=192.168.121.1:00:FF:95:6B:DA:3D which is pretty unintelligable, but ... (includes Rusty's minor rework) Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: Don't leak /dev/zero fdMark McLoughlin
Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-29lguest: fix verbose printing of device features.Rusty Russell
%02x is more appropriate for bytes than %08x. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-07-28Merge git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvbLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (98 commits) V4L/DVB (8549): mxl5007: Fix an error at include file V4L/DVB (8548): pwc: Fix compilation V4L/DVB (8546): add tuner-3036 and dpc7146 drivers to feature-removal-schedule.txt V4L/DVB (8546): saa7146: fix read from uninitialized memory V4L/DVB (8544): gspca: probe/open race. V4L/DVB (8543): em28xx: Rename #define for Compro VideoMate ForYou/Stereo V4L/DVB (8542): em28xx: AMD ATI TV Wonder HD 600 entry at cards struct is duplicated V4L/DVB (8541): em28xx: HVR-950 entry is duplicated. V4L/DVB (8540): em28xx-cards: Add Compro VideoMate ForYou/Stereo model V4L/DVB (8539): em28xx-cards: New supported IDs for analog models V4L/DVB (8538): em28xx-cards: Add GrabBeeX+ USB2800 model V4L/DVB (8534): remove select's of FW_LOADER V4L/DVB (8522): videodev2: Fix merge conflict V4L/DVB (8532): mxl5007t: remove excessive locks V4L/DVB (8531): mxl5007t: move i2c gate handling outside of mutex protected code blocks V4L/DVB (8530): au0828: add support for new revision of HVR950Q V4L/DVB (8529): mxl5007t: enable _init and _sleep power management functionality V4L/DVB (8528): add support for MaxLinear MxL5007T silicon tuner V4L/DVB (8526): saa7146: fix VIDIOC_ENUM_FMT V4L/DVB (8525): fix a few assorted spelling mistakes. ...
2008-07-28SubmittingPatches: add git pull & diffstat format infoRandy Dunlap
Add git pull command info and diffstat summary info so that we don't have to search email archives for it repeatedly. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-28i2c: Documentation: upgrading clients HOWTOBen Dooks
Add a document describing how i2c clients on Linux 2.6 can be moved from the old to the new driver model. Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2008-07-27Merge ../linux-2.6Mauro Carvalho Chehab
2008-07-27Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Fix shared mmap when more than two maps of the same file exist [ARM] fix VIPT/VIVT macro optimisations, add comments [ARM] 5179/1: Replace obsolete IRQT_* and __IRQT_* values with IRQ_TYPE_* [ARM] update defconfig for eseries. [ARM] PXA: squash warning in pxafb [ARM] pxa: PXA25x UDC - Fix warning during build [ARM] fix nwflash.c: 6ee8928d94841aa764aeaf645ad16daff811dc26 [ARM] fix IOP32x, IOP33x, MXC and Samsung builds [ARM] pci: provide dummy pci_get_legacy_ide_irq() [ARM] fix fls() for 64-bit arguments [ARM] fix mode for board-yl-9200.c [ARM] 5176/1: arm/Makefile: fix: ARM946T -> ARM946E
2008-07-27V4L/DVB (8546): add tuner-3036 and dpc7146 drivers to ↵Hans Verkuil
feature-removal-schedule.txt Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-27Merge ../linux-2.6Mauro Carvalho Chehab
2008-07-27V4L/DVB (8541): em28xx: HVR-950 entry is duplicated.Mauro Carvalho Chehab
Thanks to "Devin Heitmueller" <devin.heitmueller@gmail.com> for pointing this issue. Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-27V4L/DVB (8540): em28xx-cards: Add Compro VideoMate ForYou/Stereo modelVitaly Wool
Added Compro VideoMate ForYou/Stereo model (analog only) Signed-off-by: Vitaly Wool <vital@embeddedalley.com> [dougsland@gmail.com: Solved conflicts with v4l-dvb devel tree] Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com> [mchehab@infradead.org: Need to fix some merge conflicts] Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-27V4L/DVB (8539): em28xx-cards: New supported IDs for analog modelsDouglas Schilling Landgraf
- New supported IDs for analog models (Based on Markus Rechberger <mrechberger@gmail.com> version of em28xx driver) - Validation field for new em28xx boards. Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com> [mchehab@infradead.org: Need to fix some merge conflicts] Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-27V4L/DVB (8538): em28xx-cards: Add GrabBeeX+ USB2800 modelAron Szabo
Added GrabBeeX+ USB2800 model (analog only) [mchehab@infradead.org: Need to fix some merge conflicts] Signed-off-by: Aron Szabo <aron@aron.ws> Signed-off-by: Douglas Schilling Landgraf <dougsland@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-nextLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-next: (25 commits) setlocalversion: do not describe if there is nothing to describe kconfig: fix typos: "Suport" -> "Support" kconfig: make defconfig is no longer chatty kconfig: make oldconfig is now less chatty kconfig: speed up all*config + randconfig kconfig: set all new symbols automatically kconfig: add diffconfig utility kbuild: remove Module.markers during mrproper kbuild: sparse needs CF not CHECKFLAGS kernel-doc: handle/strip __init vmlinux.lds: move __attribute__((__cold__)) functions back into final .text section init: fix URL of "The GNU Accounting Utilities" kbuild: add arch/$ARCH/include to search path kbuild: asm symlink support for arch/$ARCH/include kbuild: support arch/$ARCH/include for tags, cscope kbuild: prepare headers_* for arch/$ARCH/include kbuild: install all headers when arch is changed kbuild: make clean removes *.o.* as well kbuild: optimize headers_* targets kbuild: only one call for include/ in make headers_* ...
2008-07-27Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: Allow to force model to intel-mac-v3 in snd_hda_intel (sigmatel). ALSA: cs4232: fix crash during chip PNP detection ALSA: hda - Add automatic model setting for the Acer Aspire 5920G laptop ALSA: make snd_ac97_add_vmaster() static ALSA: sound/pci/azt3328.h: no variables for enums ALSA: soc - wm9712 mono mixer ALSA: hda - Add support of ASUS Eeepc P90* ALSA: opti9xx: no isapnp param for !CONFIG_PNP ALSA: opti93x - Fix NULL dereference ALSA: hda - Added support for Asus V1Sn ALSA: ASoC: Factor PGA DAPM handling into main ALSA: ASoC: Refactor DAPM event handler ALSA: ALSA: ens1370: communicate PCI device to AC97 ALSA: ens1370: SRC stands for Sample Rate Converter ALSA: hda - Align BDL position adjustment parameter ALSA: Au1xpsc: psc not disabled when TX is idle ALSA: add TriTech 28023 AC97 codec ID and Wolfson 9701 name.
2008-07-27Merge ../linux-2.6Mauro Carvalho Chehab
2008-07-27V4L/DVB (8530): au0828: add support for new revision of HVR950QMichael Krufky
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-27[ARM] 5179/1: Replace obsolete IRQT_* and __IRQT_* values with IRQ_TYPE_*Dmitry Baryshkov
IRQT_* and __IRQT_* were obsoleted long ago by patch [3692/1]. Remove them completely. Sed script for the reference: s/__IRQT_RISEDGE/IRQ_TYPE_EDGE_RISING/g s/__IRQT_FALEDGE/IRQ_TYPE_EDGE_FALLING/g s/__IRQT_LOWLVL/IRQ_TYPE_LEVEL_LOW/g s/__IRQT_HIGHLVL/IRQ_TYPE_LEVEL_HIGH/g s/IRQT_RISING/IRQ_TYPE_EDGE_RISING/g s/IRQT_FALLING/IRQ_TYPE_EDGE_FALLING/g s/IRQT_BOTHEDGE/IRQ_TYPE_EDGE_BOTH/g s/IRQT_LOW/IRQ_TYPE_LEVEL_LOW/g s/IRQT_HIGH/IRQ_TYPE_LEVEL_HIGH/g s/IRQT_PROBE/IRQ_TYPE_PROBE/g s/IRQT_NOEDGE/IRQ_TYPE_NONE/g Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2008-07-27ALSA: Allow to force model to intel-mac-v3 in snd_hda_intel (sigmatel).Nicolas Boichat
Currently, even if you pass model=intel-mac-v3 as a module parameter to snd_hda_intel, the function patch_stac922x (patch_sigmatel.c) will still try to auto-detect the model type. This is a problem on my MacBook Pro 1st generation, which needs intel-mac-v3, but sometimes incorrectly reports 0x00000100 as subsystem id, which causes the switch in patch_stac922x to select intel-mac-v4. To fix this, I added a new model called intel-mac-auto, so in case no module parameter is passed, and an Intel Mac board is detected, the model will be automatically detected, while no detection will be done if the model is forced to intel-mac-v3. This problem has been around for quite a while, and I used to fix it by moving the case statement for 0x00000100 in patch_stac922x so that intel-mac-v3 is chosen. Another way to fix the problem would be to check if a module parameter was set directly in patch_stac922x, using something like this: if (spec->board_config == STAC_INTEL_MAC_V3 && !codec->bus->modelname) { But I think it is less elegant (if you prefer that way, I can prepare a patch). Signed-off-by: Nicolas Boichat <nicolas@boichat.ch> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2008-07-27Add mISDN driverKarsten Keil
mISDN is a new modular ISDN driver, in the long term it should replace the old I4L driver architecture for passiv ISDN cards. Signed-off-by: Karsten Keil <kkeil@suse.de>
2008-07-26Documentation cleanup: trivial misspelling, punctuation, and grammar ↵Matt LaPlante
corrections. 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>
2008-07-26omfs: add filesystem documentationBob Copeland
These patches add the Optimized MPEG Filesystem, a proprietary filesystem used by the embedded devices Rio Karma and ReplayTV, which are no longer manufactured. This filesystem module enables people to access files on these devices. This patch: OMFS is a proprietary filesystem created for the ReplayTV and also used by the Rio Karma. It uses hash tables with unordered, unbounded lists in each bucket for directories, extents for data blocks, 64-bit addressing for blocks, with up to 8K blocks (only 2K of a given block is ever used for metadata, so the FS still works with 4K pages). Document the filesystem usage and structures. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-26relay: add buffer-only channels; useful for early loggingEduard - Gabriel Munteanu
Allows one to create and use a channel with no associated files. Files can be initialized later. This is useful in scenarios such as logging in early code, before VFS is up. Therefore, such channels can be created and used as soon as kmem_cache_init() completed. This is needed by kmemtrace to do tracing in early kernel code. [kosaki.motohiro@jp.fujitsu.com: build fix] Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Cc: Tom Zanussi <tzanussi@gmail.com> Signed-off-by: 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>
2008-07-26dma-mapping: add the device argument to dma_mapping_error()FUJITA Tomonori
Add per-device dma_mapping_ops support for CONFIG_X86_64 as POWER architecture does: This enables us to cleanly fix the Calgary IOMMU issue that some devices are not behind the IOMMU (http://lkml.org/lkml/2008/5/8/423). I think that per-device dma_mapping_ops support would be also helpful for KVM people to support PCI passthrough but Andi thinks that this makes it difficult to support the PCI passthrough (see the above thread). So I CC'ed this to KVM camp. Comments are appreciated. A pointer to dma_mapping_ops to struct dev_archdata is added. If the pointer is non NULL, DMA operations in asm/dma-mapping.h use it. If it's NULL, the system-wide dma_ops pointer is used as before. If it's useful for KVM people, I plan to implement a mechanism to register a hook called when a new pci (or dma capable) device is created (it works with hot plugging). It enables IOMMUs to set up an appropriate dma_mapping_ops per device. The major obstacle is that dma_mapping_error doesn't take a pointer to the device unlike other DMA operations. So x86 can't have dma_mapping_ops per device. Note all the POWER IOMMUs use the same dma_mapping_error function so this is not a problem for POWER but x86 IOMMUs use different dma_mapping_error functions. The first patch adds the device argument to dma_mapping_error. The patch is trivial but large since it touches lots of drivers and dma-mapping.h in all the architecture. This patch: dma_mapping_error() doesn't take a pointer to the device unlike other DMA operations. So we can't have dma_mapping_ops per device. Note that POWER already has dma_mapping_ops per device but all the POWER IOMMUs use the same dma_mapping_error function. x86 IOMMUs use device argument. [akpm@linux-foundation.org: fix sge] [akpm@linux-foundation.org: fix svc_rdma] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix bnx2x] [akpm@linux-foundation.org: fix s2io] [akpm@linux-foundation.org: fix pasemi_mac] [akpm@linux-foundation.org: fix sdhci] [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: fix sparc] [akpm@linux-foundation.org: fix ibmvscsi] Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Muli Ben-Yehuda <muli@il.ibm.com> Cc: Andi Kleen <andi@firstfloor.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Avi Kivity <avi@qumranet.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-26V4L/DVB (8492): Add support for the ATI TV Wonder HD 600Devin Heitmueller
em28xx-cards.c em28xx-dvb.c em28xx.h - Add support for the ATI TV Wonder HD 600, based on a 94 email exchange and USB traces provided by Ronnie Bailey Thanks to Ronnie Bailey <purevw@wtxs.net> for testing the changes Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-07-25kbuild: sparse needs CF not CHECKFLAGSGeert Uytterhoeven
Documentation/sparse.txt tells to use: make C=2 CHECKFLAGS="-D__CHECK_ENDIAN__" However, this still doesn't enable endian checks. The correct syntax is: make C=2 CF="-D__CHECK_ENDIAN__" This documentation bug was introduced by the following commit: commit 1c7bafe7206d928eaccbcbd08d868733e0fb7054 Author: Robert P. J. Day <rpjday@mindspring.com> Date: Wed Sep 13 07:57:50 2006 -0400 kbuild: clarify "make C=" build option Clarify the use of "make C=" in the top-level Makefile, and fix a typo in the Documentation file. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> This `typo' was not a typo, as `CF' had been introduced much earlier, by: commit 7b49bb9aff8b14d15da58111d8908c877c0a525e Author: viro@ZenIV.linux.org.uk <viro@ZenIV.linux.org.uk> Date: Fri Sep 9 21:14:35 2005 +0100 [PATCH] kbuild: CF=<arguments> passes arguments to sparse Allows to add to sparse arguments without mutilating makefiles - just pass CF=<arguments> and they will be added to CHECKFLAGS. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2008-07-25Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (34 commits) powerpc: Wireup new syscalls Move update_mmu_cache() declaration from tlbflush.h to pgtable.h powerpc/pseries: Remove kmalloc call in handling writes to lparcfg powerpc/pseries: Update arch vector to indicate support for CMO ibmvfc: Add support for collaborative memory overcommit ibmvscsi: driver enablement for CMO ibmveth: enable driver for CMO ibmveth: Automatically enable larger rx buffer pools for larger mtu powerpc/pseries: Verify CMO memory entitlement updates with virtual I/O powerpc/pseries: vio bus support for CMO powerpc/pseries: iommu enablement for CMO powerpc/pseries: Add CMO paging statistics powerpc/pseries: Add collaborative memory manager powerpc/pseries: Utilities to set firmware page state powerpc/pseries: Enable CMO feature during platform setup powerpc/pseries: Split retrieval of processor entitlement data into a helper routine powerpc/pseries: Add memory entitlement capabilities to /proc/ppc64/lparcfg powerpc/pseries: Split processor entitlement retrieval and gathering to helper routines powerpc/pseries: Remove extraneous error reporting for hcall failures in lparcfg powerpc: Fix compile error with binutils 2.15 ... Fixed up conflict in arch/powerpc/platforms/52xx/Kconfig manually.
2008-07-25edac: core fix redundant sysfs controls to parametersArthur Jones
/sys/devices/system/edac/mc has a few files which are duplicated in /sys/module/edac_core/parameters. Now that all the functionality is duplicated between these two locations, we remove the former kobject attributes and update the documentation. Signed-off-by: Arthur Jones <ajones@riverbed.com> Signed-off-by: Doug Thompson <dougthompson@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25per-task-delay-accounting: update document and getdelays.c for memory reclaimKeika Kobayashi
Update document and make getdelays.c show delay accounting for memory reclaim. For making a distinction between "swapping in pages" and "memory reclaim" in getdelays.c, MEM is changed to SWAP. Signed-off-by: Keika Kobayashi <kobayashi.kk@ncos.nec.co.jp> Acked-by: Balbir Singh <balbir@linux.vnet.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>
2008-07-25per-task-delay-accounting: update taskstats for memory reclaim delayKeika Kobayashi
Add members for memory reclaim delay to taskstats, and accumulate them in __delayacct_add_tsk() . Signed-off-by: Keika Kobayashi <kobayashi.kk@ncos.nec.co.jp> Cc: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.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>
2008-07-25pidns: remove find_task_by_pid, unused for a long timePavel Emelyanov
It seems to me that it was a mistake marking this function as deprecated and scheduling it for removal, rather than resolutely removing it after the last caller's death. Anyway - better late, then never. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25Char: mxser, update documentationJiri Slaby
Update Documentation/moxa-smartio to the later document from the mxser package. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25memcg: limit change shrink usageKAMEZAWA Hiroyuki
Shrinking memory usage at limit change. [akpm@linux-foundation.org: coding-style fixes] Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com> Acked-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.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>
2008-07-25procfs-guide: drop pointless &nbsp; entitiesMike Frysinger
Having trailing &nbsp; entities in a revision numer seems pretty pointless to me. More so, it's causing me pains, so just drop them since no other guide is doing this. Signed-off-by: Mike Frysinger <vapier@gentoo.org> 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>
2008-07-25UTC timestamp option for FAT filesystems fixJoe Peterson
Signed-off-by: Joe Peterson <joe@skyrush.com> Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25gpiolib: allow user-selectionMichael Buesch
This patch adds functionality to the gpio-lib subsystem to make it possible to enable the gpio-lib code even if the architecture code didn't request to get it built in. The archtitecture code does still need to implement the gpiolib accessor functions in its asm/gpio.h file. This patch adds the implementations for x86 and PPC. With these changes it is possible to run generic GPIO expansion cards on every architecture that implements the trivial wrapper functions. Support for more architectures can easily be added. Signed-off-by: Michael Buesch <mb@bu3sch.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: David Brownell <david-b@pacbell.net> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jean Delvare <khali@linux-fr.org> Cc: Samuel Ortiz <sameo@openedhand.com> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25gpio: add bt8xxgpio driverMichael Buesch
This adds the bt8xxgpio driver. The purpose of the bt8xxgpio driver is to export all of the 24 GPIO pins available on Brooktree 8xx chips to the kernel GPIO infrastructure. This makes it possible to use a physically modified BT8xx card as cheap digital GPIO card. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Michael Buesch <mb@bu3sch.de> Cc: David Brownell <david-b@pacbell.net> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25gpio: sysfs interfaceDavid Brownell
This adds a simple sysfs interface for GPIOs. /sys/class/gpio /export ... asks the kernel to export a GPIO to userspace /unexport ... to return a GPIO to the kernel /gpioN ... for each exported GPIO #N /value ... always readable, writes fail for input GPIOs /direction ... r/w as: in, out (default low); write high, low /gpiochipN ... for each gpiochip; #N is its first GPIO /base ... (r/o) same as N /label ... (r/o) descriptive, not necessarily unique /ngpio ... (r/o) number of GPIOs; numbered N .. N+(ngpio - 1) GPIOs claimed by kernel code may be exported by its owner using a new gpio_export() call, which should be most useful for driver debugging. Such exports may optionally be done without a "direction" attribute. Userspace may ask to take over a GPIO by writing to a sysfs control file, helping to cope with incomplete board support or other "one-off" requirements that don't merit full kernel support: echo 23 > /sys/class/gpio/export ... will gpio_request(23, "sysfs") and gpio_export(23); use /sys/class/gpio/gpio-23/direction to (re)configure it, when that GPIO can be used as both input and output. echo 23 > /sys/class/gpio/unexport ... will gpio_free(23), when it was exported as above The extra D-space footprint is a few hundred bytes, except for the sysfs resources associated with each exported GPIO. The additional I-space footprint is about two thirds of the current size of gpiolib (!). Since no /dev node creation is involved, no "udev" support is needed. Related changes: * This adds a device pointer to "struct gpio_chip". When GPIO providers initialize that, sysfs gpio class devices become children of that device instead of being "virtual" devices. * The (few) gpio_chip providers which have such a device node have been updated. * Some gpio_chip drivers also needed to update their module "owner" field ... for which missing kerneldoc was added. * Some gpio_chips don't support input GPIOs. Those GPIOs are now flagged appropriately when the chip is registered. Based on previous patches, and discussion both on and off LKML. A Documentation/ABI/testing/sysfs-gpio update is ready to submit once this merges to mainline. [akpm@linux-foundation.org: a few maintenance build fixes] Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Cc: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de> Cc: Greg KH <greg@kroah.com> Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25documentation: update CodingStyle tips for Emacs usersJohannes Weiner
Describe a setup that integrates better with Emacs' cc-mode and also fixes up the alignment of continuation lines to really only use tabs. Signed-off-by: Johannes Weiner <hannes@saeurebad.de> Cc: Jonathan Corbet <corbet@lwn.net> 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>
2008-07-25remove some more tipar bitsAdrian Bunk
Some bits were missed when the tipar driver was removed. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-26 15:08:38 +0000