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path: root/drivers/ide/ide-cd.c
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* ide: use queue lock instead of ide_lock when possibleBartlomiej Zolnierkiewicz2008-12-29
| | | | | | | | This is just a preparation for future changes and there should be no functional changes caused by this patch since ide_lock is currently also used as queue lock. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: ide_lock + __blk_end_request() -> blk_end_request()Bartlomiej Zolnierkiewicz2008-12-29
| | | | | | | | | | Use blk_end_request() instead of ide_lock + __blk_end_request() in cdrom_end_request(), cdrom_newpc_intr(), __ide_end_request(), ide_complete_pm_request() and ide_end_drive_cmd(). [ ide_lock is currently also used as queue lock ] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: ide_hwgroup_t.rq doesn't need an ide_lock heldBartlomiej Zolnierkiewicz2008-12-29
| | | | | | | While at it: - no need to check for hwgroup presence in ide_dump_opcode() Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: fix DMA alignment regressionBorislav Petkov2008-11-02
| | | | | | | | | | | | | | | | e5318b531b008c79d2a0c0df06a7b8628da38e2f ("ide: use the dma safe check for REQ_TYPE_ATA_PC") introduced a regression which caused some ATAPI drives to turn off DMA for REQ_TYPE_BLOCK_PC commands while burning and thus degrading performance and ultimately causing an excessive amount of underruns. The issue is documented also in: http://bugzilla.kernel.org/show_bug.cgi?id=11742. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Tested-by: Valerio Passini <valerio.passini@unicam.it> [bart: fixup patch description per comments from Sergei Shtylyov] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: add TEAC CD-224E to the NO_AUTOCLOSE listMárton Németh2008-10-23
| | | | | | | | | | The "TEAC CD-ROM CD-224E" cannot close its tray, so add it to the NO_AUTOCLOSE list. This will correct the "Can close tray" field of /proc/sys/dev/cdrom/info. Signed-off-by: Márton Németh <nm127@freemail.hu> Acked-by: Borislav Petkov <petkovbb@gmail.com> [bart: minor fixups to patch description] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* [PATCH] switch ide-cdAl Viro2008-10-21
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [PATCH] beginning of methods conversionAl Viro2008-10-21
| | | | | | | | | | | | | | | | | | | | | | | | To keep the size of changesets sane we split the switch by drivers; to keep the damn thing bisectable we do the following: 1) rename the affected methods, add ones with correct prototypes, make (few) callers handle both. That's this changeset. 2) for each driver convert to new methods. *ALL* drivers are converted in this series. 3) kill the old (renamed) methods. Note that it _is_ a flagday; all in-tree drivers are converted and by the end of this series no trace of old methods remain. The only reason why we do that this way is to keep the damn thing bisectable and allow per-driver debugging if anything goes wrong. New methods: open(bdev, mode) release(disk, mode) ioctl(bdev, mode, cmd, arg) /* Called without BKL */ compat_ioctl(bdev, mode, cmd, arg) locked_ioctl(bdev, mode, cmd, arg) /* Called with BKL, legacy */ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [PATCH] switch cdrom_{open,release,ioctl} to sane APIsAl Viro2008-10-21
| | | | | | ... convert to it in callers Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [PATCH] lose the unused file argument in generic_ide_ioctl()Al Viro2008-10-21
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ide-cd: remove stale commentBorislav Petkov2008-10-17
| | | | | | Signed-off-by: Borislav Petkov <petkovbb@gmail.com> [bart: split-up this change from a bigger patch] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: small drive type print fixBorislav Petkov2008-10-17
| | | | | Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: debug log enhancementsBorislav Petkov2008-10-17
| | | | | | | | Add some more verbosity to key function calls in ide-cd debug code. While at it, delete a superfluous comment. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: allow device drivers to specify per-device type /proc settingsBartlomiej Zolnierkiewicz2008-10-17
| | | | | | | | | | | Turn ide_driver_t's 'proc' field into ->proc_entries method (and also 'settings' field into ->proc_devsets method). Then update all device drivers accordingly. There should be no functional changes caused by this patch. Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove IDE_AFLAG_NO_DOORLOCKINGBartlomiej Zolnierkiewicz2008-10-17
| | | | | | | | | Just use IDE_DFLAG_DOORLOCKING instead. There should be no functional changes caused by this patch. Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: IDE_AFLAG_MEDIA_CHANGED -> IDE_DFLAG_MEDIA_CHANGEDBartlomiej Zolnierkiewicz2008-10-17
| | | | | | | There should be no functional changes caused by this patch. Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: fix printk format warningAlexander Beregalov2008-10-13
| | | | | | Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Cc: Borislav Petkov <petkovbb@googlemail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: move cdrom_info.dma to ide_drive_t.dmaBorislav Petkov2008-10-13
| | | | | | | There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: add a debug_mask module parameterBorislav Petkov2008-10-13
| | | | | | Signed-off-by: Borislav Petkov <petkovbb@gmail.com> [bart: no need to zero debug_mask + move it next to module_param()] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: convert driver to new ide debugging macro (v3)Borislav Petkov2008-10-13
| | | | | | | | | | | | | | | | | | | | | | Also, - leave in the possibility for optimizing away all debugging macros - add a PFX macro and prepend all printk calls with it for consistency - add debug macro calls in important driver paths - remove #if 0-ed code - mv restore_request -> ide_cd_restore_request - add a driver registration printk v2: failed_command can be NULL so check it before accessing it v3: fix another NULL ptr in debug statement There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: no need to zero drive->special.allBartlomiej Zolnierkiewicz2008-10-13
| | | | | Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: set IDE_AFLAG_DRQ_INTERRUPT in do_identify()Bartlomiej Zolnierkiewicz2008-10-13
| | | | | | | | | | | | | Set IDE_AFLAG_DRQ_INTERRUPT in do_identify() instead of ATAPI device drivers *_setup() methods. While at it: - use ata_id_cdb_intr() There should be no functional changes caused by this patch. Cc: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove superfluous ->media field from ide_driver_tBartlomiej Zolnierkiewicz2008-10-13
| | | | | Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add device flagsBartlomiej Zolnierkiewicz2008-10-13
| | | | | | | | | | | | | | Add 'unsigned long dev_flags' to ide_drive_t and convert bitfields to IDE_DFLAG_* flags. While at it: - IDE_DFLAG_ADDRESSING -> IDE_DFLAG_LBA48 - fixup some comments - remove needless g->flags zeroing from ide*_probe() There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: unify conversion macrosBorislav Petkov2008-10-13
| | | | | | | | | | Introduce to_ide_drv() and ide_drv_g() macros and replace the respective definitions of similar ones in each driver. There should be no functionality change resulting from this patch. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: Remove ide_spin_wait_hwgroup() and use special requests insteadElias Oltmanns2008-10-10
| | | | | | | | | | Use a special request for serialisation purposes and get rid of the awkward ide_spin_wait_hwgroup(). This also involves converting the ide_devset structure so it can be shared by the /proc and the ioctl code. Signed-off-by: Elias Oltmanns <eo@nebensachen.de> [bart: use rq->cmd[] directly] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove ->supports_dsc_overlap field from ide_driver_tBartlomiej Zolnierkiewicz2008-10-10
| | | | | | | | | | | * Use drive->media and drive->scsi to check if ->dsc_overlap can be set by HDIO_SET_NICE ioctl in generic_ide_ioctl(). * Remove unused ->supports_dsc_overlap field from ide_driver_t. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: /proc/ide/hd*/settings reworkBartlomiej Zolnierkiewicz2008-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros. * Add 'const struct ide_devset **settings' to ide_driver_t. * Use 'const struct ide_devset **settings' in ide_drive_t instead of 'struct ide_settings_s *settings'. Then convert core code and device drivers to use struct ide_devset and co.: - device settings are no longer allocated dynamically for each device but instead there is an unique struct ide_devset instance per setting - device driver keeps the pointer to the table of pointers to its settings in ide_driver_t.settings - generic settings are kept in ide_generic_setting[] - ide_proc_[un]register_driver(), ide_find_setting_by_name(), ide_{read,write}_setting() and proc_ide_{read,write}_settings() are updated accordingly - ide*_add_settings() are removed * Remove no longer used __ide_add_setting(), ide_add_setting(), __ide_remove_setting() and auto_remove_settings(). * Remove no longer used TYPE_*, SETTING_*, ide_procset_t and ide_settings_t. * ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap, ->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields can now be bitfield flags. While at it: * Rename ide_find_setting_by_name() to ide_find_setting(). * Rename write_wcache() to set_wcache(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: call ide_proc_register_driver() laterBartlomiej Zolnierkiewicz2008-10-10
| | | | | | | | | | Call ide_proc_register_driver() in ide*_setup() (just before ide*_add_settings() call) instead of in ->probe method. Despite being basically a preparation for /proc/ide/hd*/settings rework this is a nice cleanup in itself. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: remove needless drive->present checks from device driversBartlomiej Zolnierkiewicz2008-10-10
| | | | | | | Remove needless drive->present checks from ->probe methods (device model takes care of that). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: use the new object_is_in_stack() helperFUJITA Tomonori2008-10-10
| | | | | | | | | | | Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Tejun Heo <htejun@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: use ATA_* defines instead of *_STAT and *_ERR onesBartlomiej Zolnierkiewicz2008-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * ERR_STAT -> ATA_ERR * INDEX_STAT -> ATA_IDX * ECC_STAT -> ATA_CORR * DRQ_STAT -> ATA_DRQ * SEEK_STAT -> ATA_DSC * WRERR_STAT -> ATA_DF * READY_STAT -> ATA_DRDY * BUSY_STAT -> ATA_BUSY * MARK_ERR -> ATA_AMNF * TRK0_ERR -> ATA_TRK0NF * ABRT_ERR -> ATA_ABORTED * MCR_ERR -> ATA_MCR * ID_ERR -> ATA_IDNF * MC_ERR -> ATA_MC * ECC_ERR -> ATA_UNC * ICRC_ERR -> ATA_ICRC * BBD_ERR -> ATA_BBK Also: * ILI_ERR -> ATAPI_ILI * EOM_ERR -> ATAPI_EOM * LFS_ERR -> ATAPI_LFS * CD -> ATAPI_COD * IO -> ATAPI_IO Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: WIN_* -> ATA_CMD_*Bartlomiej Zolnierkiewicz2008-10-10
| | | | | | | | | | | | | | | | | | | | | * Use ATA_CMD_* defines instead of WIN_* ones. While at it: * EXABYTE_ENABLE_NEXT -> ATA_EXABYTE_ENABLE_NEST * SETFEATURES_{EN,DIS}_WCACHE -> SETFEATURES_WC_{ON,OFF} * SETFEATURES_{EN,DIS}_AAM -> SETFEATURES_AAM_{ON,OFF} * SMART_* -> ATA_SMART_* * Remove stale comment from ide-proc.c. Partially based on earlier work by Chris Wedgwood. Acked-by: Chris Wedgwood <cw@f00f.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: make drive->id an union (take 2)Bartlomiej Zolnierkiewicz2008-10-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make drive->id an unnamed union so id can be accessed either by using 'u16 *id' or 'struct hd_driveid *driveid'. Then convert all existing drive->id users accordingly (using 'u16 *id' when possible). This is an intermediate step to make ide 'struct hd_driveid'-free. While at it: - Add missing KERN_CONTs in it821x.c. - Use ATA_ID_WORDS and ATA_ID_*_LEN defines. - Remove unnecessary checks for drive->id. - s/drive_table/table/ in ide_in_drive_list(). - Cleanup ide_config_drive_speed() a bit. - s/drive1/dev1/ & s/drive0/dev0/ in ide_undecoded_slave(). v2: Fix typo in drivers/ide/ppc/pmac.c. (From Stephen Rothwell) There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* block: move policy from disk to part0Tejun Heo2008-10-09
| | | | | | | Move disk->policy to part0->policy. Implement and use get_disk_ro(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* ide-cd: Optiarc DVD RW AD-7200A does play audioBodo Eggert2008-10-05
| | | | | | | | | | The Optiarc DVD RW AD-7200A can play audio, but tells it could not. Signed-off-by: Bodo Eggert <7eggert@gmx.de> Tested-by: Nick Warne <nick@ukfsn.org> Received-from: Borislav Petkov <petkovbb@googlemail.com> [bart: keep "audio" quirks together] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: temporary tray close fixBorislav Petkov2008-10-05
| | | | | | | | | | | This one fixes http://bugzilla.kernel.org/show_bug.cgi?id=11602. A more generic fix for drives which cannot autoclose tray will follow. Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Cc: Jens Axboe <jens.axboe@oracle.com> [bart: add an extra parentheses for consistency with the rest of kernel code] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* block: disable sysfs parts of the disk command filterJens Axboe2008-09-11
| | | | | | | | We still have life time issues with the sysfs command filter kobject, so disable it for 2.6.27 release. We can revisit this and make it work properly for 2.6.28, for 2.6.27 release it's too risky. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* remove blk_register_filter and blk_unregister_filter in gendiskFUJITA Tomonori2008-08-29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch remove blk_register_filter and blk_unregister_filter in gendisk, and adds them to sd.c, sr.c. and ide-cd.c The commit abf5439370491dd6fbb4fe1a7939680d2a9bc9d4 moved cmdfilter from gendisk to request_queue. It turned out that in some subsystems multiple gendisks share a single request_queue. So we get: Using physmap partition information Creating 3 MTD partitions on "physmap-flash": 0x00000000-0x01c00000 : "User FS" 0x01c00000-0x01c40000 : "booter" kobject (8511c410): tried to init an initialized object, something is seriously wrong. Call Trace: [<8036644c>] dump_stack+0x8/0x34 [<8021f050>] kobject_init+0x50/0xcc [<8021fa18>] kobject_init_and_add+0x24/0x58 [<8021d20c>] blk_register_filter+0x4c/0x64 [<8021c194>] add_disk+0x78/0xe0 [<8027d14c>] add_mtd_blktrans_dev+0x254/0x278 [<8027c8f0>] blktrans_notify_add+0x40/0x78 [<80279c00>] add_mtd_device+0xd0/0x150 [<8027b090>] add_mtd_partitions+0x568/0x5d8 [<80285458>] physmap_flash_probe+0x2ac/0x334 [<802644f8>] driver_probe_device+0x12c/0x244 [<8026465c>] __driver_attach+0x4c/0x84 [<80263c64>] bus_for_each_dev+0x58/0xac [<802633ec>] bus_add_driver+0xc4/0x24c [<802648e0>] driver_register+0xcc/0x184 [<80100460>] _stext+0x60/0x1bc In the long term, we need to fix such subsystems but we need a quick fix now. This patch add the command filter support to only sd and sr though it might be useful for other SG_IO users (such as cciss). Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Reported-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* ide-cd: use bcd2bin/bin2bcdAdrian Bunk2008-08-18
| | | | | | | | | | Change ide-cd to use the new bcd2bin/bin2bcd functions instead of the obsolete BCD2BIN/BIN2BCD macros. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: fix endianity for the error message in cdrom_read_capacityPetr Tesarik2008-08-05
| | | | | | | | | | | | | | | | | | Aesthetic regards aside, commit e8e7b9eb11c34ee18bde8b7011af41938d1ad667 still leaves a bug in the error message, because it uses the unconverted big-endian value for printk. Fix this by using a local variable in machine byte order. The result is correct, more readable, and also produces slightly shorter code on i386. Signed-off-by: Petr Tesarik <ptesarik@suse.cz> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Jan Kara <jack@suse.cz> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: <stable@kernel.org> Acked-by: Borislav Petkov <petkovbb@gmail.com> [bart: __u32 -> u32] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: fix regression caused by ide_device_{get,put}() addition (take 2)Bartlomiej Zolnierkiewicz2008-08-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Monday 28 July 2008, Benjamin Herrenschmidt wrote: [...] > Vector: 300 (Data Access) at [c58b7b80] > pc: c014f264: elv_may_queue+0x10/0x44 > lr: c0152750: get_request+0x2c/0x2c0 > sp: c58b7c30 > msr: 1032 > dar: c > dsisr: 40000000 > current = 0xc58aaae0 > pid = 854, comm = media-bay > enter ? for help > mon> t > [c58b7c40] c0152750 get_request+0x2c/0x2c0 > [c58b7c70] c0152a08 get_request_wait+0x24/0xec > [c58b7cc0] c0225674 ide_cd_queue_pc+0x58/0x1a0 > [c58b7d40] c022672c ide_cdrom_packet+0x9c/0xdc > [c58b7d70] c0261810 cdrom_get_disc_info+0x60/0xd0 > [c58b7dc0] c026208c cdrom_mrw_exit+0x1c/0x11c > [c58b7e30] c0260f7c unregister_cdrom+0x84/0xe8 > [c58b7e50] c022395c ide_cd_release+0x80/0x84 > [c58b7e70] c0163650 kref_put+0x54/0x6c > [c58b7e80] c0223884 ide_cd_put+0x40/0x5c > [c58b7ea0] c0211100 generic_ide_remove+0x28/0x3c > [c58b7eb0] c01e9d34 __device_release_driver+0x78/0xb4 > [c58b7ec0] c01e9e44 device_release_driver+0x28/0x44 > [c58b7ee0] c01e8f7c bus_remove_device+0xac/0xd8 > [c58b7f00] c01e7424 device_del+0x104/0x198 > [c58b7f20] c01e74d0 device_unregister+0x18/0x30 > [c58b7f40] c02121c4 __ide_port_unregister_devices+0x6c/0x88 > [c58b7f60] c0212398 ide_port_unregister_devices+0x38/0x80 > [c58b7f80] c0208ca4 media_bay_step+0x1cc/0x5c0 > [c58b7fb0] c0209124 media_bay_task+0x8c/0xcc > [c58b7fd0] c00485c0 kthread+0x48/0x84 > [c58b7ff0] c0011b20 kernel_thread+0x44/0x60 The guilty commit turned out to be 08da591e14cf87247ec09b17c350235157a92fc3 ("ide: add ide_device_{get,put}() helpers"). ide_device_put() is called before kref_put() in ide_cd_put() so IDE device is already gone by the time ide_cd_release() is reached. Fix it by calling ide_device_get() before kref_get() and ide_device_put() after kref_put() in all affected device drivers. v2: Brown paper bag time. In v1 cd->drive was referenced after dropping last reference on cd object (which could result in OOPS in ide_device_put() as reported/debugged by Mariusz Kozlowski). Fix it by caching cd->drive in the local variable (fix other device drivers too). Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reported-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Cc: Borislav Petkov <petkovbb@gmail.com> Tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: fix oops when using growisofsJens Axboe2008-07-24
| | | | | | | | | | | | | | | | | | | | | cdrom_read_capacity() will blindly return the capacity from the device without sanity-checking it. This later causes code in fs/buffer.c to oops. Fix this by checking that the device is telling us sensible things. From: Jens Axboe <jens.axboe@oracle.com> Cc: Michael Buesch <mb@bu3sch.de> Cc: Jan Kara <jack@suse.cz> Cc: Arnd Bergmann <arnd@arndb.de> Cc: <stable@kernel.org> Cc: Borislav Petkov <petkovbb@googlemail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> [bart: print device name instead of driver name] Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> [harvey: blocklen is a big-endian value] Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_device_{get,put}() helpersBartlomiej Zolnierkiewicz2008-07-24
| | | | | | | | | | | | * Add 'struct ide_host *host' field to ide_hwif_t and set it in ide_host_alloc_all(). * Add ide_device_{get,put}() helpers loosely based on SCSI's scsi_device_{get,put}() ones. * Convert IDE device drivers to use ide_device_{get,put}(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: ide-cd.c fix sparse endianness warningsHarvey Harrison2008-07-23
| | | | | | | | | | | | | | | | drivers/ide/ide-cd.c:1276:46: warning: Using plain integer as NULL pointer drivers/ide/ide-cd.c:1298:19: warning: cast to restricted __be32 drivers/ide/ide-cd.c:1300:4: warning: cast to restricted __be32 drivers/ide/ide-cd.c:1522:14: warning: cast to restricted __le16 drivers/ide/ide-cd.c:1523:14: warning: cast to restricted __le16 drivers/ide/ide-cd.c:1525:14: warning: cast to restricted __be16 drivers/ide/ide-cd.c:1526:14: warning: cast to restricted __be16 drivers/ide/ide-cd.c:1667:37: warning: cast to restricted __be16 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Acked-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: convert to using the new atapi_flagsBorislav Petkov2008-07-23
| | | | | | | | | There should be no functionality change resulting from this patch. [bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add struct ide_tp_ops (take 2)Bartlomiej Zolnierkiewicz2008-07-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * Add struct ide_tp_ops for transport methods. * Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info and ide_hwif_t. * Set the default hwif->tp_ops in ide_init_port_data(). * Set host driver specific hwif->tp_ops in ide_init_port(). * Export ide_exec_command(), ide_read_status(), ide_read_altstatus(), ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}() and ata_{in,out}put_data(). * Convert host drivers and core code to use struct ide_tp_ops. * Remove no longer needed default_hwif_transport(). * Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops. While at it: * Use struct ide_port_info in falconide.c and q40ide.c. * Rename ata_{in,out}put_data() to ide_{in,out}put_data(). v2: * Fix missing convertion in ns87415.c. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ide_read_bcount_and_ireason() helperBartlomiej Zolnierkiewicz2008-07-23
| | | | | | | Add ide_read_bcount_and_ireason() helper and use it instead of ->INB in {cdrom_newpc,ide_pc}_intr(). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide: add ->read_status methodBartlomiej Zolnierkiewicz2008-07-23
| | | | | | | | | | | | | | | * Remove ide_read_status() inline helper. * Add ->read_status method for reading ATA Status register and use it instead of ->INB. While at it: * Don't use HWGROUP() macro. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* IDE: Remove unused codeElias Oltmanns2008-07-16
| | | | | | | | | | | Remove some code which has been made obsolete and hasn't worked properly before anyway. Part of the infrastructure may be reintroduced in a follow up patch to implement a working command aborting facility. Signed-off-by: Elias Oltmanns <eo@nebensachen.de> Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk> Cc: "Randy Dunlap" <randy.dunlap@oracle.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* ide-cd: move request prep chunk from cdrom_do_newpc_cont to rq issue pathBorislav Petkov2008-07-16
| | | | | | | | | | | As a nice side effect, this minimizes the IRQ handler execution time. There should be no functionality change resulting from this patch. [bart: remove extra newlines from ide_cd_do_request()] Signed-off-by: Borislav Petkov <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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