summaryrefslogtreecommitdiffstats
path: root/include
Commit message (Collapse)AuthorAgeFilesLines
* [SPARC]: Wire up signalfd/timerfd/eventfd syscalls.David S. Miller2007-05-112-2/+8
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* Add the combined mode for ATI SB700Henry Su2007-05-111-0/+1
| | | | | | | | | | | | | | | Besides those modes in ATI SB600 SATA controller, ATI SB700 supports one more mode:the combined mode. The combined mode is a Legacy IDE mode used for compatibility with some old OS without AHCI driver, but now it is not necessary for Linux since the kernel has supported AHCI. Signed-off-by: Luugi Marsan <luugi.marsan@amd.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata-acpi: s/CONFIG_SATA_ACPI/CONFIG_ATA_ACPI/Tejun Heo2007-05-111-1/+1
| | | | | | | | ACPI applies to both SATA and PATA. Drop the 'S' from the config variable. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: ignore EH scheduling during initializationTejun Heo2007-05-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | libata enables SCSI host during ATA host activation which happens after IRQ handler is registered and IRQ is enabled. All ATA ports are in frozen state when IRQ is enabled but frozen ports may raise limited number of IRQs after being frozen - IOW, ->freeze() is not responsible for clearing pending IRQs. During normal operation, the IRQ handler is responsible for clearing spurious IRQs on frozen ports and it usually doesn't require any extra code. Unfortunately, during host initialization, the IRQ handler can end up scheduling EH for a port whose SCSI host isn't initialized yet. This results in OOPS in the SCSI midlayer. This is relatively short window and scheduling EH for probing is the first thing libata does after initialization, so ignoring EH scheduling until initialization is complete solves the problem nicely. This problem was spotted by Berck E. Nash in the following thread. http://thread.gmane.org/gmane.linux.kernel/519412 Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Berck E. Nash <flyboy@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: clean up SFF init messTejun Heo2007-05-111-9/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The intention of using port_mask in SFF init helpers was to eventually support exoctic configurations such as combination of legacy and native port on the same controller. This never became actually necessary and the related code always has been subtly broken one way or the other. Now that new init model is in place, there is no reason to make common helpers capable of handling all corner cases. Exotic cases can simply dealt within LLDs as necessary. This patch removes port_mask handling in SFF init helpers. SFF init helpers don't take n_ports argument and interpret it into port_mask anymore. All information is carried via port_info. n_ports argument is dropped and always two ports are allocated. LLD can tell SFF to skip certain port by marking it dummy. Note that SFF code has been treating unuvailable ports this way for a long time until recent breakage fix from Linus and is consistent with how other drivers handle with unavailable ports. This fixes 1-port legacy host handling still broken after the recent native mode fix and simplifies SFF init logic. The following changes are made... * ata_pci_init_native_host() and ata_init_legacy_host() both now try to initialized whatever they can and mark failed ports dummy. They return 0 if any port is successfully initialized. * ata_pci_prepare_native_host() and ata_pci_init_one() now doesn't take n_ports argument. All info should be specified via port_info array. Always two ports are allocated. * ata_pci_init_bmdma() exported to be used by LLDs in exotic cases. * port_info handling in all LLDs are standardized - all port_info arrays are const stack variable named ppi. Unless the second port is different from the first, its port_info is specified as NULL (tells libata that it's identical to the last non-NULL port_info). * pata_hpt37x/hpt3x2n: don't modify static variable directly. Make an on-stack copy instead as ata_piix does. * pata_uli: It has 4 ports instead of 2. Don't use ata_pci_prepare_native_host(). Allocate the host explicitly and use init helpers. It's simple enough. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* libata: reimplement suspend/resume support using sdev->manage_start_stopTejun Heo2007-05-111-13/+1
| | | | | | | | | | | | | | | | | | | | | | | Reimplement suspend/resume support using sdev->manage_start_stop. * Device suspend/resume is now SCSI layer's responsibility and the code is simplified a lot. * DPM is dropped. This also simplifies code a lot. Suspend/resume status is port-wide now. * ata_scsi_device_suspend/resume() and ata_dev_ready() removed. * Resume now has to wait for disk to spin up before proceeding. I couldn't find easy way out as libata is in EH waiting for the disk to be ready and sd is waiting for EH to complete to issue START_STOP. * sdev->manage_start_stop is set to 1 in ata_scsi_slave_config(). This fixes spindown on shutdown and suspend-to-disk. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
* Merge branch 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsaLinus Torvalds2007-05-115-9/+8
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'linus' of master.kernel.org:/pub/scm/linux/kernel/git/perex/alsa: (122 commits) [ALSA] version 1.0.14rc4 [ALSA] Add speaker pin sequencing to hda_codec.c:snd_hda_parse_pin_def_config() [ALSA] hda-codec - Add ALC861VD Lenovo support [ALSA] hda-codec - Fix connection list in generic parser [ALSA] usb-audio: work around wrong wMaxPacketSize on ESI M4U [ALSA] usb-audio: work around broken M-Audio MidiSport Uno firmware [ALSA] usb-audio: explicitly match Logitech QuickCam [ALSA] hda-codec - Fix a typo [ALSA] hda-codec - Fix ALC880 uniwill auto-mutes [ALSA] hda-codec - Fix AD1988 SPDIF playback route control [ALSA] wm8750 typo fix [ALSA] wavefront: only declare isapnp on CONFIG_PNP [ALSA] hda-codec - bug fixes for stac92xx HDA codecs. [ALSA] add MODULE_FIRMWARE entries [ALSA] do not depend on FW_LOADER when internal firmware images are used [ALSA] hda-codec - Fix resume of STAC92xx codecs [ALSA] usbaudio - Revert the minimal period size fix patch [ALSA] hda-codec - Add support for new HP DV series laptops [ALSA] usb-audio - Fix the minimum period size per transfer mode [ALSA] sound/pcmcia/vx/vxpocket.c: fix an if() condition ...
| * [ALSA] version 1.0.14rc4Jaroslav Kysela2007-05-111-2/+2
| | | | | | | | Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] SoC WM8753 codec supportLiam Girdwood2007-05-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch series adds support for the WM8753 codec as found on the OpenMoko Neo 1973 (other Neo 1973 and Samsung S3C24xx patches to follow today) as well other new devices. Features:- o HiFi and Voice DAI supported (inc runtime switching of DAI mode) o DAPM o All mixers o PLL calculator o 16,20 and 24bit samples. o WM8753 I2C ID added to include/linux/i2c-id.h From: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Harald Welte <laforge@openmoko.org> Signed-off-by: Graeme Gregory <gg@opensource.wolfsonmicro.com> Signed-off-by: Seth Forshee <seth.forshee@gmail.com> Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] Fix misc bugs in i2c/others/ak4114.cPavel Hofman2007-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | * correct register for 'IEC958 Non-PCM Bitstream', 'IEC958 DTS Bitstream' to use AK4114_REG_RCS0 * correct check for control name: if (strstr(kctl->id.name, 'Playback')) * correct check: if (!chip->init) in snd_ak4114_external_rate * added PCM control 'IEC958 PPL Lock Status' Signed-off-by: Pavel Hofman <dustin@seznam.cz> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] ak4114 - Fix a typo in DIF2 bit definitionTakashi Iwai2007-05-111-1/+1
| | | | | | | | | | | | | | | | Fixed a typo in AK4114_DIF2 bit definition. This may fix some problems for Audiophile 192 and Juli boards. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] mpu401 - Add MPU401_INFO_UART_ONLY bitflagTakashi Iwai2007-05-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | Added MPU401_INFO_UART_ONLY bitflag to avoid issueing UART_ENTER command at opening streams. Some devices support only UART mode and give errors to UART_ENTER. A new module option, uart_enter, is added to snd-mpu401 driver. For UART-only devices, set uart_enter=0. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
| * [ALSA] Add snd_pcm_group_for_each_entry() for code cleanupTakashi Iwai2007-05-111-5/+2
| | | | | | | | | | | | | | | | | | Added a new macro snd_pcm_group_for_each_entry() just for code cleanup. Old macros, snd_pcm_group_for_each() and snd_pcm_group_substream_entry(), are removed. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
* | Merge branch 'master' of ↵Linus Torvalds2007-05-112-0/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb * 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (44 commits) V4L/DVB (5571): V4l1-compat: Make VIDIOCSPICT return errors in a useful way V4L/DVB (5624): Radio-maestro.c cleanup V4L/DVB (5623): Dsbr100.c Replace usb_dsbr100_do_ioctl to use video_ioctl2 V4L/DVB (5622): Radio-zoltrix.c cleanup V4L/DVB (5621): Radio-cadet.c Replace cadet_do_ioctl to use video_ioctl2 V4L/DVB (5619): Dvb-usb: fix typo V4L/DVB (5618): Cx88: Drop the generic i2c client from cx88-vp3054-i2c V4L/DVB (5617): V4L2: videodev, allow debugging V4L/DVB (5614): M920x: Disable second adapter on LifeView TV Walker Twin V4L/DVB (5613): M920x: loosen up 80-col limit V4L/DVB (5612): M920x: rename function prefixes from m9206_foo to m920x_foo V4L/DVB (5611): M920x: replace deb_rc with deb V4L/DVB (5610): M920x: remove duplicated code V4L/DVB (5609): M920x: group like functions together V4L/DVB (5608): M920x: various whitespace cleanups V4L/DVB (5607): M920x: Initial support for devices likely manufactured by Dposh V4L/DVB (5606): M920x: add "c-basic-offset: 8" to help emacs to enforce tabbing V4L/DVB (5605): M920x: Add support for LifeView TV Walker Twin V4L/DVB (5603): V4L: Prevent queueing queued buffers. V4L/DVB (5602): Enable DiSEqC in Starbox II (vp7021a) ...
| * | V4L/DVB (5592): DMA: Correctly free resources on error, sync PCI streamed dataJon Burgess2007-05-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I added saa7146_vmalloc_destroy_pgtable() which frees the resources allocated by saa7146_vmalloc_build_pgtable() and updated the callers in budget-core.c and av7110.c. I have also been through the updated functions and updated the error paths to ensure they free all allocated resources on error. I also realised that there are other callers to saa7146_pgtable_free() which did not have any sg DMA mapped so it seems wrong to add the pci_unmap_sg() into that function. Instead I created saa7146_vmalloc_destroy_pgtable() to do this. Also included in this patch are the previous fixes for pci_unmap_sg() and syncing the PCI streamed data to work with a SWIOTLB and match the requirements documented in DMA-API.txt. Signed-off-by: Jon Burgess <jburgess777@googlemail.com> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
| * | V4L/DVB (5591): Saa7146: proper prototype for saa7146_video_do_ioctl()Adrian Bunk2007-05-091-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a proper prototype for saa7146_video_do_ioctl() in include/media/saa7146_vv.h. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Oliver Endriss <o.endriss@gmx.de> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
* | | Merge branch 'release' of ↵Linus Torvalds2007-05-114-68/+28
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Quicklist support for IA64 [IA64] fix Kprobes reentrancy [IA64] SN: validate smp_affinity mask on intr redirect [IA64] drivers/char/snsc_event.c:206: warning: unused variable `p' [IA64] mca.c:121: warning: 'cpe_poll_timer' defined but not used [IA64] Fix - Section mismatch: reference to .init.data:mvec_name [IA64] more warning cleanups [IA64] Wire up epoll_pwait and utimensat [IA64] Fix warnings resulting from type-checking in dev_dbg() [IA64] typo s/kenrel/kernel/
| * | | [IA64] Quicklist support for IA64Christoph Lameter2007-05-111-66/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | IA64 is the origin of the quicklist implementation. So cut out the pieces that are now in core code and modify the functions called. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] fix Kprobes reentrancyAnil S Keshavamurthy2007-05-111-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case of reentrance i.e when a probe handler calls a functions which inturn has a probe, we save a previous kprobe information and just single step the reentrant probe without calling the actual probe handler. During this reentracy period, if an interrupt occurs and if probe happens to trigger in the inturrupt path, then we were corrupting the previous kprobe( as we were overriding the previous kprobe info) info their by crashing the system. This patch fixes this issues by having a an array of previous kprobe info struct(with the array size of 2). This similar technique is not needed on i386 and x86_64 because by default interrupts are turn off in the break/int3 exception handler. Signed-off-by: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] SN: validate smp_affinity mask on intr redirectJohn Keller2007-05-111-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On SN, only allow one bit to be set in the smp_affinty mask when redirecting an interrupt. Currently setting multiple bits is allowed, but only the first bit is used in determining the CPU to redirect to. This has caused confusion among some customers. [akpm@linux-foundation.org: fixes] Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
| * | | [IA64] Wire up epoll_pwait and utimensatTony Luck2007-05-101-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | Another day, another pair of new system calls. Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivialLinus Torvalds2007-05-112-2/+2
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial: further UTF-8 fixes and name correction Fix wrong identifier name in Documentation/kref.txt
| * | | | further UTF-8 fixes and name correctionDavid Woodhouse2007-05-112-2/+2
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > -** Copyright 1994 by Bj<94>rn Brauel > +** Copyright 1994 by Bj”rn Brauel I think these were cp437, and it should read 'Björn'. (asm-m68k/atari*.h) Also note that Arnaldo just put more legacy noise into CREDITS... Signed-off-by: Adrian Bunk <bunk@stusta.de>
* | | | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-ip22Linus Torvalds2007-05-112-0/+41
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-ip22: Convert SGI IP22 and specific drivers to platform_device.
| * | | | Convert SGI IP22 and specific drivers to platform_device.Ralf Baechle2007-05-112-0/+41
| |/ / / | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | | Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds2007-05-1113-180/+49
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (28 commits) [MIPS] Rework cobalt_board_id [MIPS] Use RTC_CMOS for Cobalt [MIPS] Use platform_device for Cobalt UART [MIPS] Separate Alchemy processor based boards config [MIPS] Fix build error in atomic64_cmpxchg [MIPS] Run checksyscalls for N32 and O32 ABI [MIPS] tlbex: use __maybe_unused [MIPS] excite: use __maybe_unused [MIPS] Add extern cobalt_board_id [MIPS] Remove unused CONFIG_TOSHIBA_BOARDS [MIPS] Rename tb0229_defconfig to tb0219_defconfig [MIPS] Update tb0229_defconfig; add CONFIG_GPIO_TB0219. [MIPS] Add minimum defconfig for RBHMA4200 [MIPS] SB1: Build fix. [MIPS] Drop __devinit tag from allocate_irqno() and free_irqno() [MIPS] clocksource: use CLOCKSOURCE_MASK() macro [MIPS] Remove LIMITED_DMA support [MIPS] Remove Momenco Jaguar ATX support [MIPS] Remove Momenco Ocelot G support [MIPS] FPU hazard handling ...
| * | | | [MIPS] Fix build error in atomic64_cmpxchgAtsushi Nemoto2007-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] Add extern cobalt_board_idYoichi Yuasa2007-05-111-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] SB1: Build fix.Ralf Baechle2007-05-111-1/+1
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] Remove LIMITED_DMA supportFranck Bui-Huu2007-05-112-46/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This code was needed only by Jaguar ATX. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] Remove Momenco Jaguar ATX supportFranck Bui-Huu2007-05-114-85/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It has some hackish code and it odd DMA results in the need to support old features in kernel code. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] Remove Momenco Ocelot G supportFranck Bui-Huu2007-05-112-23/+1
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] FPU hazard handlingChris Dearman2007-05-112-20/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move FPU hazard handling to hazards.h and provide proper support for MIPSR2 processors Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] MT: Reenable EIC support and add support for SOCit SC.Chris Dearman2007-05-112-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Chris Dearman <chris@mips.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | | | [MIPS] Define and use vi_handler_t for vectored interrupt handlers.Ralf Baechle2007-05-111-1/+4
| |/ / / | | | | | | | | | | | | Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* | | | Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2007-05-112-1/+9
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: Fix compile/link of init/do_mounts.c with !CONFIG_BLOCK When stacked block devices are in-use (e.g. md or dm), the recursive calls
| * | | | Fix compile/link of init/do_mounts.c with !CONFIG_BLOCKJens Axboe2007-05-111-1/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need a stub function for when CONFIG_BLOCK isn't set. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | | | When stacked block devices are in-use (e.g. md or dm), the recursive callsNeil Brown2007-05-111-0/+4
| |/ / / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | to generic_make_request can use up a lot of space, and we would rather they didn't. As generic_make_request is a void function, and as it is generally not expected that it will have any effect immediately, it is safe to delay any call to generic_make_request until there is sufficient stack space available. As ->bi_next is reserved for the driver to use, it can have no valid value when generic_make_request is called, and as __make_request implicitly assumes it will be NULL (ELEVATOR_BACK_MERGE fork of switch) we can be certain that all callers set it to NULL. We can therefore safely use bi_next to link pending requests together, providing we clear it before making the real call. So, we choose to allow each thread to only be active in one generic_make_request at a time. If a subsequent (recursive) call is made, the bio is linked into a per-thread list, and is handled when the active call completes. As the list of pending bios is per-thread, there are no locking issues to worry about. I say above that it is "safe to delay any call...". There are, however, some behaviours of a make_request_fn which would make it unsafe. These include any behaviour that assumes anything will have changed after a recursive call to generic_make_request. These could include: - waiting for that call to finish and call it's bi_end_io function. md use to sometimes do this (marking the superblock dirty before completing a write) but doesn't any more - inspecting the bio for fields that generic_make_request might change, such as bi_sector or bi_bdev. It is hard to see a good reason for this, and I don't think anyone actually does it. - inspecing the queue to see if, e.g. it is 'full' yet. Again, I think this is very unlikely to be useful, or to be done. Signed-off-by: Neil Brown <neilb@suse.de> Cc: Jens Axboe <axboe@kernel.dk> Cc: <dm-devel@redhat.com> Alasdair G Kergon <agk@redhat.com> said: I can see nothing wrong with this in principle. For device-mapper at the moment though it's essential that, while the bio mappings may now get delayed, they still get processed in exactly the same order as they were passed to generic_make_request(). My main concern is whether the timing changes implicit in this patch will make the rare data-corrupting races in the existing snapshot code more likely. (I'm working on a fix for these races, but the unfinished patch is already several hundred lines long.) It would be helpful if some people on this mailing list would test this patch in various scenarios and report back. Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | | | Merge branch 'audit.b38' of ↵Linus Torvalds2007-05-112-5/+19
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current * 'audit.b38' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: [PATCH] Abnormal End of Processes [PATCH] match audit name data [PATCH] complete message queue auditing [PATCH] audit inode for all xattr syscalls [PATCH] initialize name osid [PATCH] audit signal recipients [PATCH] add SIGNAL syscall class (v3) [PATCH] auditing ptrace
| * | | | [PATCH] Abnormal End of ProcessesSteve Grubb2007-05-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hi, I have been working on some code that detects abnormal events based on audit system events. One kind of event that we currently have no visibility for is when a program terminates due to segfault - which should never happen on a production machine. And if it did, you'd want to investigate it. Attached is a patch that collects these events and sends them into the audit system. Signed-off-by: Steve Grubb <sgrubb@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | [PATCH] complete message queue auditingAmy Griffis2007-05-111-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Handle the edge cases for POSIX message queue auditing. Collect inode info when opening an existing mq, and for send/receive operations. Remove audit_inode_update() as it has really evolved into the equivalent of audit_inode(). Signed-off-by: Amy Griffis <amy.griffis@hp.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | [PATCH] audit signal recipientsAmy Griffis2007-05-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When auditing syscalls that send signals, log the pid and security context for each target process. Optimize the data collection by adding a counter for signal-related rules, and avoiding allocating an aux struct unless we have more than one target process. For process groups, collect pid/context data in blocks of 16. Move the audit_signal_info() hook up in check_kill_permission() so we audit attempts where permission is denied. Signed-off-by: Amy Griffis <amy.griffis@hp.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | [PATCH] add SIGNAL syscall class (v3)Amy Griffis2007-05-112-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a syscall class for sending signals. Signed-off-by: Amy Griffis <amy.griffis@hp.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * | | | [PATCH] auditing ptraceAl Viro2007-05-111-0/+10
| |/ / / | | | | | | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | | | Merge branch 'upstream-fixes' of ↵Linus Torvalds2007-05-111-0/+1
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid * 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jikos/hid: USB HID: hiddev - fix race between hiddev_send_event() and hiddev_release() HID: add hooks for getkeycode() and setkeycode() methods HID: switch to using input_dev->dev.parent USB HID: Logitech wheel 0x046d/0xc294 needs HID_QUIRK_NOGET quirk USB HID: usb_buffer_free() cleanup USB HID: report descriptor of Cypress USB barcode readers needs fixup Bluetooth HID: HIDP - don't initialize force feedback USB HID: update CONFIG_USB_HIDINPUT_POWERBOOK description HID: add input mappings for non-working keys on Logitech S510 remote
| * | | | USB HID: report descriptor of Cypress USB barcode readers needs fixupJiri Kosina2007-05-091-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Certain versions of Cypress USB barcode readers (this problem is known to happen at least with PIDs 0xde61 and 0xde64) have report descriptor which has swapped usage min and usage max tag. This results in HID parser failing for report descriptor of these devices, as it (wrongly) requires allocating more usages than HID_MAX_USAGES. Solve this by walking through the report descriptor for such devices, and swap the usage min and usage max items (and their values) to be in proper order. Reported-by: Bret Towe <magnade@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2007-05-1110-20/+107
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6: (31 commits) [NETFILTER]: xt_conntrack: add compat support [NETFILTER]: iptable_raw: ignore short packets sent by SOCK_RAW sockets [NETFILTER]: iptable_{filter,mangle}: more descriptive "happy cracking" message [NETFILTER]: nf_nat: Clears helper private area when NATing [NETFILTER]: ctnetlink: clear helper area and handle unchanged helper [NETFILTER]: nf_conntrack: Removes unused destroy operation of l3proto [NETFILTER]: nf_conntrack: Removes duplicated declarations [NETFILTER]: nf_nat: remove unused argument of function allocating binding [NETFILTER]: Clean up table initialization [NET_SCHED]: Avoid requeue warning on dev_deactivate [NET_SCHED]: Reread dev->qdisc for NETDEV_TX_OK [NET_SCHED]: Rationalise return value of qdisc_restart [NET]: Fix dev->qdisc race for NETDEV_TX_LOCKED case [UDP]: Fix AF-specific references in AF-agnostic code. [IrDA]: KingSun/DonShine USB IrDA dongle support. [IPV6] ROUTE: Assign rt6i_idev for ip6_{prohibit,blk_hole}_entry. [IPV6]: Do no rely on skb->dst before it is assigned. [IPV6]: Send ICMPv6 error on scope violations. [SCTP]: Do not include ABORT chunk header in the notification. [SCTP]: Correctly copy addresses in sctp_copy_laddrs ...
| * | | | | [NETFILTER]: nf_conntrack: Removes unused destroy operation of l3protoYasuyuki Kozakai2007-05-101-3/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | [NETFILTER]: nf_conntrack: Removes duplicated declarationsYasuyuki Kozakai2007-05-101-7/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are also in include/net/netfilter/nf_conntrack_helper.h Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | [NETFILTER]: nf_nat: remove unused argument of function allocating bindingYasuyuki Kozakai2007-05-101-8/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nf_nat_rule_find, alloc_null_binding and alloc_null_binding_confirmed do not use the argument 'info', which is actually ct->nat.info. If they are necessary to access it again, we can use the argument 'ct' instead. Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp> Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
OpenPOWER on IntegriCloud