summaryrefslogtreecommitdiff
AgeCommit message (Collapse)AuthorFilesLines
2007-11-05ide/Kconfig: fix BLK_DEV_OFFBOARD dependenciesBartlomiej Zolnierkiewicz1-1/+2
This config option is effective only for host drivers that use IDE_HFLAG_OFF_BOARD host flag (aec62xx, generic, hpt34x, hpt366, pdc202xx_new, pdc202xx_old and tc86c001). Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-05ide: unexport ide_fix_driveidAdrian Bunk1-3/+0
ide_fix_driveid can now be unexported. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-05ide/Kconfig: add IDEDISK_MULTI_MODE text adapted from hdparm manual pageMatti Linnanvuori1-3/+16
Add IDEDISK_MULTI_MODE text adapted from hdparm manual page. Signed-off-by: Matti Linnanvuori <mattilinnanvuori@yahoo.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-05ide: do_identify() string termination fixTejun Heo1-2/+3
Terminates id->model string before invoking strstr() in do_identify(). Signed-off-by: Tejun Heo <tj@home-tj.org> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-05piix: add support for ICH7 on Acer 5602aWLMisebdeg@ngi.it1-0/+1
In piix.c (and in ata_piix.c) are already included some patches to skip the cable check on some laptops and to enable UDMA > 33 modes, but I've noticed than theese doesn't work on my Acer Aspire 5602WLMi (maybe exist more versions of this laptop). With this simple patch I can set transfer mode to UDMA100. From: "sebdeg@ngi.it" <sebdeg@ngi.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-11-05Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds8-12/+27
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] tod clock: announce clocksource as perfect [S390] Rename "idle_time" attribute to "idle_time_us". [S390] Fix priority mistakes in drivers/s390/cio/cmf.c [S390] Fix memory detection. [S390] Fix compile on !CONFIG_SMP. [S390] device_schedule_callback() for dcssblk. [S390] Fix smsgiucv init on no iucv machines [S390] cio: use INIT_WORK to initialize struct work.
2007-11-05Merge branch 'master' of ↵Linus Torvalds5-50/+38
git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-lguest: lguest: tidy up documentation kernel/futex.c: make 3 functions static unexport access_process_vm lguest: make async_hcall() static
2007-11-05cpm_load_patch() - declartion conflictKamalesh Babulal1-1/+1
Commit f2a0bd3753dad7ea4605ebd5435716b39e9f92bb defines the function with "void cpm_load_patch(cpm8xx_t *cp)" prtotype and is declared as "extern void cpm_load_patch(volatile immap_t *immr)" in the header file. Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-05SLUB: Fix memory leak by not reusing cpu_slabChristoph Lameter1-19/+1
Fix the memory leak that may occur when we attempt to reuse a cpu_slab that was allocated while we reenabled interrupts in order to be able to grow a slab cache. The per cpu freelist may contain objects and in that situation we may overwrite the per cpu freelist pointer loosing objects. This only occurs if we find that the concurrently allocated slab fits our allocation needs. If we simply always deactivate the slab then the freelist will be properly reintegrated and the memory leak will go away. Signed-off-by: Christoph Lameter <clameter@sgi.com> Acked-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-05Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds4-11/+25
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] ibmvscsi: Prevent IO during partner login [SCSI] lpfc : Correct queue tag handling [SCSI] Update MAINTAINER email address and trees [SCSI] osst: fix if (...) \n #if... cases missing semicolons when false
2007-11-05lguest: tidy up documentationRusty Russell1-22/+21
After Adrian Bunk's "make async_hcall static" moved things around, update comments to match (aka "make Guest"). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-11-05kernel/futex.c: make 3 functions staticAdrian Bunk2-11/+4
The following functions can now become static again: - get_futex_key() - get_futex_key_refs() - drop_futex_key_refs() Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-11-05unexport access_process_vmAdrian Bunk1-1/+0
This patch removes the no longer used EXPORT_SYMBOL_GPL(access_process_vm). Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-11-05lguest: make async_hcall() staticAdrian Bunk2-16/+13
async_hcall() can become static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2007-11-05[S390] tod clock: announce clocksource as perfectChristian Borntraeger1-1/+1
The Time of Day clock is the standard time source for s390. It is - monotonic - allows very fast reading - architecture guarantees at least microsecond stepping - available as part of the architecture We should announce the rate of tod as 400 to be in sync with the description found in clocksource.h: "400-499:Perfect The ideal clocksource. A must-use where available." This change will prefer tod over less reliable clock sources. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05[S390] Rename "idle_time" attribute to "idle_time_us".Heiko Carstens1-3/+3
Seems that people prefer to have the unit encoded in the attribute name. Also makes parsing easier. Now we have: # cat /sys/devices/system/cpu/cpu0/idle_time_us 131473592 instead of # cat /sys/devices/system/cpu/cpu0/idle_time 131473592 us Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05[S390] Fix priority mistakes in drivers/s390/cio/cmf.cRoel Kluin1-2/+2
Fixes priority mistakes similar to '!x & y' Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05[S390] Fix memory detection.Heiko Carstens1-1/+3
Yet another patch in the countless series of memory detection fixes: if the last area of the reported storage size is a hole the detection loop will loop forever. Just break chunk detection loop if its end is going to be larger than reported storage size. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05[S390] Fix compile on !CONFIG_SMP.Heiko Carstens1-2/+6
Commit fae8b22d3e3e3a3d317a7746493997af02a3f35c "[S390] Add per-cpu idle time / idle count sysfs attributes" causes a link error on !CONFIG_SMP. Fix this by adding some #ifdef's. Real fix would be to cleanup the code since we don't register a cpu on !CONFIG_SMP. But that would be quite a big patch. For the time being this is good enough. arch/s390/kernel/built-in.o: In function `do_monitor_call': (.text+0x50d4): undefined reference to `per_cpu__s390_idle' arch/s390/kernel/built-in.o: In function `cpu_idle': (.text+0x518c): undefined reference to `per_cpu__s390_idle' make: *** [.tmp_vmlinux1] Error 1 Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05[S390] device_schedule_callback() for dcssblk.Gerald Schaefer1-2/+7
Unregistering a device from within a device attribute handler leads to a deadlock. Need to use device_schedule_callback() to unregister device in error path. Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05[S390] Fix smsgiucv init on no iucv machinesChristian Borntraeger1-0/+4
smsgiucv is a driver that relies on iucv to work properly. If iucv ans smsgiucv are compiled into the kernel and run on an lpar the following scenario happens: iucv is initialized early as a subsystem. It checks for z/VM and returns with EPROTONOTSUPPORT. Later smsgiucv tries to run driver_register with iucv_bus as bus. As this bus is not initialized the driver core and list debugging issue several warnings and oopses. Solution is to let smsgiucv also check for z/VM and return EPROTONOTSUPPORT as well. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05[S390] cio: use INIT_WORK to initialize struct work.Heiko Carstens1-1/+1
Use INIT_WORK to initialize struct work and don't initialize a struct work partial by explicitly initializing its private structures. Fixes the following lockdep bug because no key was assigned: INFO: trying to register non-static key. the code is fine but needs lockdep annotation. turning off the locking correctness validator. 0000000001f07bb8 0000000001f07bf8 0000000000000002 0000000000000000 0000000001f07c98 0000000001f07c10 0000000001f07c10 0000000000015406 0000000000000000 0000000000000002 0000000000000000 0000000000000000 0000000001f07bf8 000000000000000c 0000000001f07bf8 0000000001f07c68 000000000039ae60 0000000000015406 0000000001f07bf8 0000000001f07c48 Call Trace: ([<0000000000015376>] show_trace+0xda/0x104) [<0000000000015460>] show_stack+0xc0/0xf8 [<00000000000154c6>] dump_stack+0x2e/0x3c [<000000000006a71e>] __lock_acquire+0x47e/0x11a0 [<000000000006b4f0>] lock_acquire+0xb0/0xd8 [<00000000000555a6>] run_workqueue+0x1aa/0x24c [<00000000000556de>] worker_thread+0x96/0xf4 [<000000000005c210>] kthread+0x90/0xb4 [<000000000001947a>] kernel_thread_starter+0x6/0xc [<0000000000019474>] kernel_thread_starter+0x0/0xc Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-11-05x86 setup: set %ebx == %ebp == %edi == 0 on protected mode entryH. Peter Anvin1-1/+3
In accordance with the newly formalized 32-bit boot protocol, set %ebx == %ebp == %edi == 0 in order to support future extensions to the protocol. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-11-05x86 setup: add a near jump to serialize %cr0 on 386/486H. Peter Anvin1-2/+2
The 386 and 486 needs a jump immediately after setting %cr0 in order to serialize the pipeline. Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2007-11-05Merge branch 'drm-patches' of ↵Linus Torvalds3-2/+5
master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/sis: missing mutex unlock in error path. radeon: set the address to access the GART table on the CPU side correctly
2007-11-05Merge branch 'an' of ↵Linus Torvalds5-3/+216
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'an' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: [libata] Utilize new SCSI event infrastructure SCSI: add asynchronous event notification API
2007-11-05drm/sis: missing mutex unlock in error path.Roel Kluin1-0/+1
airlied: separated this out from a patch on lkml. Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Signed-off-by: Dave Airlie <airlied@linux.ie>
2007-11-05radeon: set the address to access the GART table on the CPU side correctlyDave Airlie2-2/+4
This code relied on the CPU and GPU address for the aperture being the same, On some r5xx hardware I was playing with I noticed that this isn't always true. This fixes issues seen on some r400 cards. (bugs.freedesktop.org 9957) Signed-off-by: Dave Airlie <airlied@redhat.com>
2007-11-05Merge branch 'for-linus' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: ieee1394: iso and async streams: s/g list fix
2007-11-05rtc: ignore msb when reading back mday from alarmMark Lord1-1/+2
I have a system here that actively relies upon RTC wake alarms, and it has been failing (again) for a few days when attempting to use the /sys/class/rtc/rtc?/wakealarm interface. The old (fixed by Linus) /proc/ interface still works, but I'd like to get it using the new one. This patch fixes rtc-cmos to ignore the two upper bits when reading the BCD mday (day of month) register from CMOS. Some systems (eg. mine) seem to have the top bit set to "1" for some reason. The older /proc/ interface ignores the upper bits, and so we should too. Signed-off-by: Mark Lord <mlord@pobox.com> Acked-by: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-04ieee1394: iso and async streams: s/g list fixJens Axboe1-2/+1
Torsten Kaiser wrote: > Looking that calltrace upwards, it seems replacing the > memset(dma->sglist,...) with sg_init_table(...) would fix the BUG_ON() > as that inits the SG_MAGIC. Tested-by: Torsten Kaiser <just.for.lkml@googlemail.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
2007-11-04[libata] Utilize new SCSI event infrastructureJeff Garzik1-3/+5
An end to CD-ROM polling (if you have a device that supports AN)... hooray! Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-11-04SCSI: add asynchronous event notification APIJeff Garzik4-0/+211
Originally based on a patch by Kristen Carlson Accardi @ Intel. Copious input from James Bottomley. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-11-03Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds4-28/+40
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: [BLOCK] Don't allow empty barriers to be passed down to queues that don't grok them dm: bounce_pfn limit added Deadline iosched: Fix batching fairness Deadline iosched: Reset batch for ordered requests Deadline iosched: Factor out finding latter reques
2007-11-03Merge branch 'sg' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds43-75/+45
* 'sg' of git://git.kernel.dk/linux-2.6-block: [SG] Get rid of __sg_mark_end() cleanup asm/scatterlist.h includes SG: Make sg_init_one() use general table init functions
2007-11-03Merge branch 'v2.6.24-rc1-lockdep' of ↵Linus Torvalds10-15/+61
git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep * 'v2.6.24-rc1-lockdep' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep: lockdep: fix a typo in the __lock_acquire comment sched: fix unconditional irq lock lockdep: fixup irq tracing
2007-11-03Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh64-2.6Linus Torvalds6-182/+154
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh64-2.6: sh64: Update defconfigs. sh64: fix dma_cache_sync() compilation sh64: Move DMA macros from pci.h to scatterlist.h.
2007-11-03Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6Linus Torvalds24-387/+390
* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6: (24 commits) sh: Update r7785rp defconfig. sh: mach-type updates. sh: Fix up r7780rp highlander CF access size. sh: Terminate .eh_frame in VDSO with a 4-byte 0. sh: Correct SUBARCH matching. sh: Decouple 4k and soft/hardirq stacks. sh: Fix optimized __copy_user() movca.l usage. sh: Clean up SR.RB Kconfig mess. sh: Kill off dead ipr_irq_demux(). sh: Make SH7750 oprofile compile again. sh: Provide a __read_mostly section wrapper. sh: linker script tidying. sh: Move zero page param defs somewhere sensible. sh: Use generic SMP_CACHE_BYTES/L1_CACHE_ALIGN. sh: Kill off legacy embedded ramdisk section. sh: Fix up early mem cmdline parsing. sh: Enable USBF on MS7722SE. sh: Add resource of USBF for SH7722. maple: Fix maple bus compiler warning sh: fix zImage build with >=binutils-2.18 ...
2007-11-03Merge branch 'upstream-linus' of ↵Linus Torvalds6-206/+149
master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev: (23 commits) libata: don't configure downstream links faster than the upstream link libata: request PHY speed configuration on SControl access failure libata: consider errors not associated with commands for speed down libata: more robust reset failure handling libata: cosmetic clean up / reorganization of ata_eh_reset() libata: fix timing computation in ata_eh_reset() libata: increase 128 KB / cmd limit for ATAPI tape drives sata_promise: fix endianess bug in ASIC PRD bug workaround libata: fix docbook make ata_scsi_lpm_get() static libata: suppress two warnings ata/sata_fsl: Remove ata_scsi_suspend/resume callbacks ata/sata_fsl: Remove sending LOG EXT command in sata_fsl_softreset() ata/sata_fsl: Move MPC8315DS link speed limit workaround to specific ifdef ata/sata_fsl: cleanup style problem ata/sata_fsl: remove unneeded sata_fsl_hardreset() ata/sata_fsl: remove unneeded on-stack copy of FIS ata/sata_fsl: cleanup needless casts to/from void __iomem * ata/sata_fsl: Remove unnecessary SCR cases ata/sata_fsl: Kill ata_sg_is_last() ...
2007-11-03NTFS: Fix read regression.Anton Altaparmakov3-5/+20
The regression was caused by: commit[a32ea1e1f925399e0d81ca3f7394a44a6dafa12c] Fix read/truncate race This causes ntfs_readpage() to be called for a zero i_size inode, which failed when the file was compressed and non-resident. Thanks a lot to Mike Galbraith for reporting the issue and tracking down the commit that caused the regression. Looking into it I found three bugs which the patch fixes. Signed-off-by: Anton Altaparmakov <aia21@cantab.net> Tested-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-11-03[SCSI] ibmvscsi: Prevent IO during partner loginRobert Jennings1-5/+14
By setting the request_limit in send_srp_login to 1 we allowed login requests to be sent to the server adapter. If this was not an initial login, but was a login after a disconnect with the server, other I/O requests could attempt to be processed before the login occured. These I/O requests would fail, sometimes resulting in filesystems getting marked read-only. To address this we can set the request_limit to 0 while doing the login and add an exception where login requests, along with task management events, are always passed to the server. There is a case where the request_limit had already reached 0 would result in all events being sent rather than returning SCSI_MLQUEUE_HOST_BUSY; this has also been fixed by this patch. Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-03[SCSI] lpfc : Correct queue tag handlingJames Smart1-2/+3
This patch corrects the lpfc tag handling issue identified by Hannes Reinecke http://marc.info/?l=linux-scsi@m=119270235628850&w=2 The basis for this patch originated from Hajime Kai. Thank You Hajime. Signed-off-by: hajime-kai@soft.fujitsu.com Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-03[SCSI] Update MAINTAINER email address and treesJames Bottomley1-2/+4
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2007-11-03libata: don't configure downstream links faster than the upstream linkTejun Heo1-6/+16
There's nothing to be gained by configuring downstream links faster than the upstream link and such configurations cause problems on certain PMPs. Limit downstream link speed by the upstream link speed. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-11-03libata: request PHY speed configuration on SControl access failureTejun Heo1-1/+1
In sata_set_spd_needed(), if SControl read failed, it returned 0 and skipped PHY speed configuration. However, if SControl access fails, it's far more logical to request PHY speed configuration. Reverse the logic. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-11-03libata: consider errors not associated with commands for speed downTejun Heo1-6/+13
libata EH used to ignore errors not associated with commands when determining whether speed down is necessary or not. This leads to the following problems. * Errors not associated with commands can occur indefinitely without libata EH taking corrective actions. * Upstream link errors don't trigger speed down when PMP is attached to it and commands issued to downstream device trigger errors on the upstream link. This patch makes ata_eh_link_autopsy() consider errors not associated with command for speed down. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-11-03libata: more robust reset failure handlingTejun Heo1-9/+16
Reset failure is a critical error. It results in disabling the link requiring user intervention to re-enable it. Make reset failure handling more robust such that libata EH doesn't give up too early. * Temporary glitches during hardreset may lead to classification failure when there's no softreset available. Retry instead of giving up. * Initial softreset or follow up softreset may fail classification. Move classification error handling block out of followup softreset block such that both cases are handled and retry instead of giving up. Also, on the last try, give ATA class a blind shot. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-11-03libata: cosmetic clean up / reorganization of ata_eh_reset()Tejun Heo1-56/+56
Clean up and reorganize ata_eh_reset() to ease further changes. * Cache ARRAY_SIZE(ata_eh_reset_timeouts) in @max_tries. * Cache link->flags in @lflags. * Move failure handling block to the end of the function and unnest both success and failure handling blocks. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-11-03libata: fix timing computation in ata_eh_reset()Tejun Heo1-1/+1
As jiffies changes asynchronously, it needs to be cached if unchanging timestamp is needed. The code in ata_eh_reset() intended to do that with @now but never actually did it. Fix it. Signed-off-by: Tejun Heo <htejun@gmail.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-11-03libata: increase 128 KB / cmd limit for ATAPI tape drivesTony Battersby2-0/+10
Commands sent to ATAPI tape drives via the SCSI generic (sg) driver are limited in the amount of data that they can transfer by the max_sectors value. The max_sectors value is currently calculated according to the command set for disk drives, which doesn't apply to tape drives. The default max_sectors value of 256 limits ATAPI tape drive commands to 128 KB. This patch against 2.6.24-rc1 increases the max_sectors value for tape drives to 65535, which permits tape drive commands to transfer just under 32 MB. Tested with a SuperMicro PDSME motherboard, AHCI, and a Sony SDX-570V SATA tape drive. Note that some of the chipset drivers also set their own max_sectors value, which may override the value set in libata-core. I don't have any of these chipsets to test, so I didn't go messing with them. Also, ATAPI devices other than tape drives may benefit from similar changes, but I have only tape drives and disk drives to test. Signed-off-by: Tony Battersby <tonyb@cybernetics.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-19 18:14:07 +0300