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An end to CD-ROM polling (if you have a device that supports AN)...
hooray!
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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Originally based on a patch by Kristen Carlson Accardi @ Intel.
Copious input from James Bottomley.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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* '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
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* '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
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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
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* 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.
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* 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
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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()
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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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>
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The original workaround for the Promise ASIC PRD bug
contained an endianess bug which I failed to detect:
the adjustment of the last PRD entry's length field
applied host arithmetic to little-endian data, which
is incorrect on big-endian machines.
We have the length available in host-endian format, so
do the adjustment on host-endian data and then convert
and store it in the PRD entry's little-endian data field.
Thanks to an anonymous reviewer for detecting this bug.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Fix docbook format in the comments.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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ata_scsi_lpm_get() can become static.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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drivers/ata/libata-core.c:768: warning: 'ata_lpm_enable' defined but not used
drivers/ata/libata-core.c:784: warning: 'ata_lpm_disable' defined but not used
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: ashish kalra <ashish.kalra@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: ashish kalra <ashish.kalra@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: ashish kalra <ashish.kalra@freescale.com>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Remove unneeded on-stack copy of FIS
in sata_fsl_cache_taskfile_from_d2h_fis().
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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SCRs in the driver map to the standard values found in include/linux/ata.h,
so no need for individual scr_read/scr_write case statements duplicating
the natural value.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Powerpc uses virtual irq which has to be unmapped.
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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Update the driver to use the newly added ata_link structure.
Signed-off-by: Li Yang <leoli@freescale.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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The Jazz machines have to use the PIT timer for dyntick and highresolution
kernels. This may break because currently just like i386 used to do MIPS
uses two separate spinlocks in the actual PIT code and the PC speaker
code. So switch to do it the same that x86 currently does PIT locking.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: linux-input mailing list moved to vger.kernel.org
Input: inport, logibm - use KERN_INFO when reporting missing mouse
Input: appletouch - idle reset logic broke older Fountains
Input: hp_sdc.c - fix section mismatch
Input: appletouch - add Johannes Berg as maintainer
Input: Add Euro and Dollar key codes
Input: xpad - add more USB IDs
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* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (25 commits)
[MIPS] Jazz: disable PIT; cleanup R4030 clockevent
[MIPS] Bigsur supports highmem.
[MIPS] mtx-1: Enable -Werror.
[MIPS] mtx-1: Remove unused mtx1_sys_btn.
[MIPS] Pb1200: Enable -Werror.
[MIPS] Fix and cleanup the MIPS part of the (ab)use of CLOCK_TICK_RATE.
[MIPS] SNI: register a02r clockevent; don't use PIT timer
[MIPS] i8253.h: Remove all i8259 related definitions.
[MIPS] i8253: Cleanup.
[MIPS] Cobalt: Fix IRQ comment; the Cobalt kernel uses CP0 counter now.
[MIPS] Pb1200: Fix warning.
[MIPS] Pb1200: Fix warning.
[MIPS] IP27: Fix build error.
[MIPS] Excite: Fix build error.
[MIPS] Sibyte: Split and move clock code.
[MIPS] Sibyte: Fixes for oneshot timer mode.
[MIPS] Sibyte: Remove blank line.
[MIPS] Swarm: Fix build failure
[MIPS] time: Code cleanups
[MIPS] time: Remove now unused local_timer_interrupt.
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* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] iTCO_wdt.c ICH8 pci-device-id's
[WATCHDOG] iTCO_wdt.c init & exit fixes
[WATCHDOG] iTCO_wdt.c pci_device_id table clean-up
[WATCHDOG] spin_lock_init() fixes
[WATCHDOG] Unlock in iTCO_wdt_start when reboot is disabled
[WATCHDOG] Add necessary braces to if (...) \n #if... cases
[WATCHDOG] trivial fix two returns in void functions
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Add the pci-device-id's for the ICH8M and the ICH8M-E chipsets.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Mark init and exit procedures as __devinit & _-devexit.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Make the pci_device_id table more readable.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Some watchdog drivers initialize global spinlocks in module's init function
which is tolerable, but some do it in PCI probe function. So, switch to
static initialization to fix theoretical bugs and, more importantly, stop
giving people bad examples.
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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Fix ISA irq acknowledge.
Make r4030 clockevent code look like other mips clockevent code.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This is the clock rate of the i8253 PIT. A MIPS system may not have
a PIT by the symbol is used all over the kernel including some APIs.
So keeping it defined to the number for the PIT is the only sane thing
for now.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Register A20R clockevent.
Remove PIT timer setup because it doesn't work
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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