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* ide: use ->ata_input_data in ide_driveid_update()Bartlomiej Zolnierkiewicz2008-04-02
| | | | | | | | | Use ->ata_input_data method instead of calling ata_input_data() directly. Currently it matters only for (broken) ide-cris host driver but it may change in the future. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-h8300: 32-bit I/O is unsupportedBartlomiej Zolnierkiewicz2008-04-02
| | | | | | | This host driver doesn't support 32-bit I/O (it sets hwif->INSL/OUTSL to NULL) so IDE_HFLAG_NO_IO_32BIT host flag needs to be set. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/legacy/q40ide.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/legacy/macide: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/legacy/falconide.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/legacy/buddha.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/legacy/gayle.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/h8300/ide-h8300.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/cris/ide-cris.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/arm/ide_arm.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/ppc/pmac.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/ppc/mpc8xx.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/pci/cmd640.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it can be built modular it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-pnp.c: add MODULE_LICENSEAdrian Bunk2008-04-02
| | | | | | | | Now that it's in an own module it needs a MODULE_LICENSE. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Revert "ide: change master/slave IDENTIFY order"Bartlomiej Zolnierkiewicz2008-03-29
| | | | | | | | | | | | | | | | | | | This reverts commit b140b99c413ce410197cfcd4014e757cd745226a. [ conflict in drivers/ide/ide-probe.c fixed manually ] It turned out that probing order change causes problems for some drives: http://bugzilla.kernel.org/show_bug.cgi?id=10239 Since root causes are still being investigated and are unlikely to be fixed before 2.6.25 lets revert this change for now. As a result cable detection becomes less reliable when compared with 2.6.24 but the affected drives are useable again. Reported-by: Richard Genoud <richard.genoud@gmail.com> Bisected-by: Richard Genoud <richard.genoud@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* Revert "ide-tape: schedule driver for removal after 6 months"Bartlomiej Zolnierkiewicz2008-03-22
| | | | | | | | | This reverts commit d48567dd43868b3d2e1fcc33ee76dc2d38a1ddeb. Borislav is working on ide-tape "light" version instead. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: mark "hdx=remap" and "hdx=remap63" kernel parameters as obsoletedBartlomiej Zolnierkiewicz2008-03-22
| | | | | | | | Mark "hdx=remap" and "hdx=remap63" kernel parameters as obsoleted (they are layering violation and should be dealt with in the same way as done by libata - device-mapper should be used instead). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: mark "hdx=[driver_name]" and "hdx=scsi" kernel parameters as obsoletedBartlomiej Zolnierkiewicz2008-03-22
| | | | | | | | Mark "hdx=[driver_name]" and "hdx=scsi" kernel parameters as obsoleted (nowadays device-driver binding can be changed at runtime through sysfs and it can also be dealt with using per device driver parameters). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: mark special "ide0=" kernel parameters as obsoletedBartlomiej Zolnierkiewicz2008-03-22
| | | | | | | | Mark "ide0=ali14xx|cmd640_vlb|dtc2278|ht6560b|qd65xx|umc8672" kernel parameters as obsoleted (per host driver replacements have been available for a long time). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove commented out entries from ide_pio_blacklist[]Bartlomiej Zolnierkiewicz2008-03-22
| | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* IDE: Make taskfile interface more robust wrt unexpected end-of-commandLinus Torvalds2008-03-19
| | | | | | | | | | | | | | | | | | | | | | | | Now that we handle all the special commands using REQ_TYPE_ATA_TASKFILE rather than using the old REQ_TYPE_ATA_CMD model, we need to also emulate the lack of full taskfile data that comes with the old command model (ie when commands are generated with the HDIO_DRIVE_CMD ioctl rather than using the HDIO_DRIVE_TASK[FILE] ioctls). In particular, this means that we should handle command completion the more relaxed way that the old drive_cmd_intr() code did. It allows commands to finish early even if they don't use up all the data that we thought we had for them. This fixes a regression seen by Anders Eriksson where some SMART commands sent by smartd would cause a boot-time system hang on his machine because the IDE command handling code didn't realize that the command had completed. Tested-by: Anders Eriksson <aeriksson@fastmail.fm> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Ingo Molnar <mingo@elte.hu> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ide: update references to Documentation/ide/ide.txt (v2)Randy Dunlap2008-03-07
| | | | | | | | Fix all references to Documentation/ide/ide.txt. Add/update ide/00-INDEX file. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix buggy code in ide_register_hw()Peter Teoh2008-03-07
| | | | | | | | Relocating the index to come after finding the hwif pointer. Signed-off-by: Peter Teoh <htmldeveloper@gmail.com> Reported-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix enabling DMA on it821x in "smart" modeBartlomiej Zolnierkiewicz2008-03-07
| | | | | | | ide_tune_dma() should return '1' if IDE_HFLAG_NO_SET_MODE host flag is set. Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: mark REQ_TYPE_ATA_PC write requests with REQ_RW flagBartlomiej Zolnierkiewicz2008-03-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Thursday 06 March 2008, walt wrote: > For me, this commit causes the problem it's intended to fix: > > commit 9f10d9ee0ac6d79d7bc8b9a158bf4a29322d84d3 > Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> > Date: Tue Feb 26 21:50:35 2008 +0100 > > ide-cd: fix 'ireason' handling for REQ_TYPE_ATA_PC requests > > This fixes some hangs caused by not finishing the transfer before ending > the request and also makes use of 'ireason == 1' quirk for spurious IRQs. > > When I mount a CD there is a long delay, and I see this error message: > > hdc: ide_cd_check_ireason: wrong transfer direction! > cdrom: failed setting lba address space > hdc: status error: status=0x58 { DriveReady SeekComplete DataRequest } > ide: failed opcode was: unknown > hdc: drive not ready for command > <repeated many times> > > When I revert this commit everything works properly again, including > CD burning. It turned out that REQ_TYPE_ATA_PC write requests were not marked as such (the previous commit assumed them to be). Reported-by: walt <w41ter@gmail.com> Tested-by: walt <w41ter@gmail.com> Reviewed-by: Borislav Petkov <petkovbb@googlemail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove stale comments from ide-dma.c (take 2)Bartlomiej Zolnierkiewicz2008-02-26
| | | | | | | | | | | | | | | | | | - ide-dma.c is not a separate module - ide-dma.c is not PCI specific anymore - DMA is enabled by default nowadays - link for Intel Zappa BIOS is dead etc. v2: * Some comments should be preserved. (Noticed by Mark Lord) Cc: Mark Lord <liml@rtr.ca> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* qd65xx: remove commented out codeBartlomiej Zolnierkiewicz2008-02-26
| | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-tape: schedule driver for removal after 6 monthsBorislav Petkov2008-02-26
| | | | | Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-disk: add missing printk() KERN_* levelsBartlomiej Zolnierkiewicz2008-02-26
| | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix sparse warning about shadowing 'flags' symbolBartlomiej Zolnierkiewicz2008-02-26
| | | | | | | | | | drivers/ide/ide.c:801:18: warning: symbol 'flags' shadows an earlier one drivers/ide/ide.c:732:16: originally declared here Also fix some whitespace damage while at it. Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: fix CD/DVD burningAndreas Schwab2008-02-26
| | | | | | | | | | Move counting of sense bytes into the transfer loop. Signed-off-by: Andreas Schwab <schwab@suse.de> Acked-by: Borislav Petkov <petkovbb@gmail.com> Cc: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: fix 'ireason' handling for REQ_TYPE_ATA_PC requestsBartlomiej Zolnierkiewicz2008-02-26
| | | | | | | | | | | | Pass 'struct request *rq' to ide_cd_check_ireason() from cdrom_newpc_intr() and use ide_cd_check_ireason() also for REQ_TYPE_ATA_PC requests. This fixes some hangs caused by not finishing the transfer before ending the request and also makes use of 'ireason == 1' quirk for spurious IRQs. Tested-by: Brad Rosser <brad.rosser@gmail.com> Cc: Borislav Petkov <petkovbb@googlemail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* qd65xx: fix setup of QD6580 Control registerBartlomiej Zolnierkiewicz2008-02-26
| | | | | | Control register of QD6580 should be setup before probing for devices. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: skip probing port if "hdx=noprobe" was used for both devices on itBartlomiej Zolnierkiewicz2008-02-26
| | | | | | | | | * Skip probing port if "hdx=noprobe" parameter was used for both devices on it. * Obsolete "idex=noprobe" parameter - it only works for ide_generic, cmd640 and PCI hosts in Compatibility mode (on alpha/x86/ia64/m32r/mips/ppc32). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove redundant comment from ide_unregister()Bartlomiej Zolnierkiewicz2008-02-26
| | | | | | Identical comment is present in ide_hwif_release_regions() documentation. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* hpt366: fix section mismatch warningsSam Ravnborg2008-02-26
| | | | | | | | | | | | | | | | | | | | | | hpt366: fix section mismatch warnings Fix following warnings: WARNING: o-sparc64/vmlinux.o(.data+0x195a38): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt370 WARNING: o-sparc64/vmlinux.o(.data+0x195a40): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt370a WARNING: o-sparc64/vmlinux.o(.data+0x195a48): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt372 WARNING: o-sparc64/vmlinux.o(.data+0x195a50): Section mismatch in reference from the variable hpt37x_info.0 to the variable .devinit.data:hpt372n Replace a static array with a small switch resulting in more readable code. Mark the pci table __devinitconst. A lot of variables are const but annotated __devinitdata. Annotating them __devinitconst would cause a section type conflict error when build for 64 bit powerpc. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: Enable audio play quirk for Optiarc DVD RW AD-5200A driveBorislav Petkov2008-02-26
| | | | | | Reported-by: Stefan Bader <stefan.bader@canonical.com> Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* PM: Introduce PM_EVENT_HIBERNATE callback stateRafael J. Wysocki2008-02-23
| | | | | | | | | | | | | | | | | | | | | | | | | During the last step of hibernation in the "platform" mode (with the help of ACPI) we use the suspend code, including the devices' ->suspend() methods, to prepare the system for entering the ACPI S4 system sleep state. But at least for some devices the operations performed by the ->suspend() callback in that case must be different from its operations during regular suspend. For this reason, introduce the new PM event type PM_EVENT_HIBERNATE and pass it to the device drivers' ->suspend() methods during the last phase of hibernation, so that they can distinguish this case and handle it as appropriate. Modify the drivers that handle PM_EVENT_SUSPEND in a special way and need to handle PM_EVENT_HIBERNATE in the same way. These changes are necessary to fix a hibernation regression related to the i915 driver (ref. http://lkml.org/lkml/2008/2/22/488). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Tested-by: Jeff Chua <jeff.chua.linux@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ide: mark "ide=reverse" option as obsoleteBartlomiej Zolnierkiewicz2008-02-21
| | | | | | | | | | | | | - it is valid only if "Probe IDE PCI devices in the PCI bus order (DEPRECATED)" config option is used - Greg needs to remove pci_get_device_reverse() for PCI core changes Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* ide-cd: fix missing residual count setting in DMA modeKiyoshi Ueda2008-02-18
| | | | | | | | | | | | | | | | | | | | | This patch fixes the missing residual count setting in DMA mode, which was introduced during the conversion to blk-end-request. The residual count could be used by the request submitter. So if it isn't set correctly, some upper layers does not work. (e.g. wodim for CD burning.) The bug is in only DMA mode. In PIO mode, we are setting the residual count correctly, so no need to fix. Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Reported-by: Andreas Schwab <schwab@suse.de> Tested-by: Andreas Schwab <schwab@suse.de> Tested-by: Laura Garcia <nevola@gmail.com> Tested-by: Borislav Petkov <petkovbb@googlemail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ht6560b: force prefetch for some devicesJan Evert van Grootheest2008-02-18
| | | | | | | | | | | | | | | | | | | | Prefetch needs to be set for some ide devices to work when connected to a ht6560b interface. This was not always done properly, causing a system with a HD and CD on the primary interface to not work properly. Or, in effect, hang hard. This patch forces prefetch on devices before checking whether it is necessary to change the settings in the interface This patch should also be applied to 2.4. I don't currently have a 2.4 tree around. (also change my email address) Signed-off-by: Jan Evert van Grootheest <janevert@caiway.nl> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ht6560b can only do up to PIO mode 4Jan Evert van Grootheest2008-02-18
| | | | | | | | | According to the datasheet, ht6560b only supports up to PIO mode 4. [bart: manually ported it over 2.6.25-rc2] Signed-off-by: Jan Evert van Grootheest <janevert@caiway.nl> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* via82cxxx: add new PCI id for cx700Andrew Smith2008-02-18
| | | | | | | [bart: manually ported it over via82cxxx changes] From: Andrew Smith <asmith@tranquility.fsbusiness.co.uk> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* falconide: locking bugfixBartlomiej Zolnierkiewicz2008-02-18
| | | | | | | | | | commit 8ac4ce742c66100931b6f2d7a36b0df08bc721fe ("ide: fix host drivers depending on ide_generic to probe for interfaces (take 2)") moved probing to falconide but forgot to take care of Atari specific locking - fix it. Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michael Schmitz <schmitz@debian.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide/libata: ST310211A has buggy HPA tooMikko Rapeli2008-02-18
| | | | | | | Signed-off-by: Mikko Rapeli <mikko.rapeli@teleca.com> Tested-by: Bart Champagne <bart@as35701.net> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: Add missing base addresses for falconide and macideGeert Uytterhoeven2008-02-18
| | | | | | | | | | | | commit 29dd59755a849cc6475faa6a75f3b804e23a6fc2 ("ide: remove ide_setup_ports") forgot to take into account the base addresses for the CONTROL registers for falconide and macide, as pointed out by Michael Schmitz. Falconide was tested on Aranym. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Michael Schmitz <schmitz@debian.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove stale comment from ide-lib.cBartlomiej Zolnierkiewicz2008-02-10
| | | | Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix comment in init_irq()Bartlomiej Zolnierkiewicz2008-02-10
| | | | | | APUS support is gone... Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: ide_init_port() bugfixBartlomiej Zolnierkiewicz2008-02-10
| | | | | | | | | | | | | | | | | On Sunday 10 February 2008, Atsushi Nemoto wrote: > On Sun, 06 Jan 2008 18:03:10 +0100, Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> wrote: > > + /* reset DMA masks only for SFF-style DMA controllers */ > > + if ((d->host_flags && IDE_HFLAG_NO_DMA) == 0 && hwif->dma_base == 0) > > + hwif->swdma_mask = hwif->mwdma_mask = hwif->ultra_mask = 0; > > It might be too late, but "host_flags && IDE_HFLAGS_NO_DMA" seems > wrong for me. Fix regression caused by commmit c413b9b94d9a8e7548cc4b2e04b7df0439ce76fd ("ide: add struct ide_port_info instances to legacy host drivers"). Reported-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-disk: fix flush requests (take 2)Bartlomiej Zolnierkiewicz2008-02-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 813a0eb233ee67d7166241a8b389b6a76f2247f9 Author: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Date: Fri Jan 25 22:17:10 2008 +0100 ide: switch idedisk_prepare_flush() to use REQ_TYPE_ATA_TASKFILE requests ... broke flush requests. Allocating IDE command structure on the stack for flush requests is not a very brilliant idea: - idedisk_prepare_flush() only prepares the request and it doesn't wait for it to be completed - there are can be multiple flush requests queued in the queue Fix the problem (per hints from James Bottomley) by: - dynamically allocating ide_task_t instance using kmalloc(..., GFP_ATOMIC) - adding new taskfile flag (IDE_TFLAG_DYN) - calling kfree() in ide_end_drive_command() if IDE_TFLAG_DYN is set (while at it rename 'args' to 'task' and fix whitespace damage) [ This will be fixed properly before 2.6.25 but this bug is rather critical and the proper solution requires some more work + testing. ] Thanks to Sebastian Siewior and Christoph Hellwig for reporting the problem and testing patches (extra thanks to Sebastian for bisecting it to the guilty commmit). Tested-by: Sebastian Siewior <ide-bug@ml.breakpoint.cc> Cc: Christoph Hellwig <hch@infradead.org> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Tejun Heo <htejun@gmail.com> Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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