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Commit Graph

63587 Commits

Author SHA1 Message Date
Joakim Tjernlund
5bd5c03c31 [JFFS2] Prevent oops after 'node added in wrong place' debug check
jffs2_add_physical_node_ref() should never really return error -- it's
an internal debugging check which triggered. We really need to work out
why and stop it happening. But in the meantime, let's make the failure
mode a little less nasty.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-08-02 21:36:35 +01:00
Linus Torvalds
370504cf7c Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched
* git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched:
  [PATCH] sched: reduce task_struct size
  [PATCH] sched: reduce debug code
  [PATCH] sched: use schedstat_set() API
  [PATCH] sched: add schedstat_set() API
  [PATCH] sched: move load-calculation functions
  [PATCH] sched: ->task_new cleanup
  [PATCH] sched: uninline inc/dec_nr_running()
  [PATCH] sched: uninline calc_delta_mine()
  [PATCH] sched: calc_delta_mine(): use fixed limit
  [PATCH] sched: tidy up left over smpnice code
  [PATCH] sched: remove cache_hot_time
2007-08-02 11:15:27 -07:00
Linus Torvalds
160d6aaf60 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/selinux-2.6:
  Net/Security: fix memory leaks from security_secid_to_secctx()
  SELinux: remove redundant pointer checks before calling kfree()
  SELinux: restore proper NetLabel caching behavior
2007-08-02 11:14:54 -07:00
Paul Moore
e6e0871cce Net/Security: fix memory leaks from security_secid_to_secctx()
The security_secid_to_secctx() function returns memory that must be freed
by a call to security_release_secctx() which was not always happening.  This
patch fixes two of these problems (all that I could find in the kernel source
at present).

Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
2007-08-02 11:52:26 -04:00
Paul Moore
088999e98b SELinux: remove redundant pointer checks before calling kfree()
We don't need to check for NULL pointers before calling kfree().

Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
2007-08-02 11:52:23 -04:00
Paul Moore
9534f71ca3 SELinux: restore proper NetLabel caching behavior
A small fix to the SELinux/NetLabel glue code to ensure that the NetLabel
cache is utilized when possible.  This was broken when the SELinux/NetLabel
glue code was reorganized in the last kernel release.

Signed-off-by: Paul Moore <paul.moore@hp.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: James Morris <jmorris@namei.org>
2007-08-02 11:52:21 -04:00
Ingo Molnar
94c18227d1 [PATCH] sched: reduce task_struct size
more task_struct size reduction, by moving the debugging/instrumentation
fields to under CONFIG_SCHEDSTATS:

 (i386, nodebug):

                          size
                          ----
     pre-CFS              1328
         CFS              1472
         CFS+patch        1376

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
6cfb0d5d06 [PATCH] sched: reduce debug code
move the rest of the debugging/instrumentation code to under
CONFIG_SCHEDSTATS too. This reduces code size and speeds code up:

    text    data     bss     dec     hex filename
   33044    4122      28   37194    914a sched.o.before
   32708    4122      28   36858    8ffa sched.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
8179ca23d5 [PATCH] sched: use schedstat_set() API
make use of the new schedstat_set() API to eliminate two #ifdef sections.

No functional changes:

    text    data     bss     dec     hex filename
   29009    4122      28   33159    8187 sched.o.before
   29009    4122      28   33159    8187 sched.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
c3c7011969 [PATCH] sched: add schedstat_set() API
add the schedstat_set() API, to allow the reduction of
CONFIG_SCHEDSTAT related #ifdefs. No code changed.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
9c2172459a [PATCH] sched: move load-calculation functions
move load-calculation functions so that they can use the per-policy
declarations and methods.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
cad60d93e1 [PATCH] sched: ->task_new cleanup
make sched_class.task_new == NULL a 'default method', this
allows the removal of task_rt_new.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
4e6f96f313 [PATCH] sched: uninline inc/dec_nr_running()
uninline inc_nr_running() and dec_nr_running():

   text    data     bss     dec     hex filename
   29039    4162      24   33225    81c9 sched.o.before
   29027    4162      24   33213    81bd sched.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
cb1c4fc924 [PATCH] sched: uninline calc_delta_mine()
uninline calc_delta_mine():

   text    data     bss     dec     hex filename
   29162    4162      24   33348    8244 sched.o.before
   29039    4162      24   33225    81c9 sched.o.after

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
ecf691daf7 [PATCH] sched: calc_delta_mine(): use fixed limit
use fixed limit in calc_delta_mine() - this saves an instruction :)

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Peter Williams
5a4f3ea77e [PATCH] sched: tidy up left over smpnice code
1. The only place that RTPRIO_TO_LOAD_WEIGHT() is used is in the call to
move_tasks() in the function active_load_balance() and its purpose here
is just to make sure that the load to be moved is big enough to ensure
that exactly one task is moved (if there's one available).  This can be
accomplished by using ULONG_MAX instead and this allows
RTPRIO_TO_LOAD_WEIGHT() to be deleted.

2. This, in turn, allows PRIO_TO_LOAD_WEIGHT() to be deleted.

3. This allows load_weight() to be deleted which allows
TIME_SLICE_NICE_ZERO to be deleted along with the comment above it.

Signed-off-by: Peter Williams <pwil3058@bigpond.net.au>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Ingo Molnar
362a701663 [PATCH] sched: remove cache_hot_time
remove the last unused remains of cache_hot_time.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-08-02 17:41:40 +02:00
Jiri Kosina
22f675f320 HID: Never call hid_free_buffers() when usbhid_device has been freed
We can't call hid_free_buffers() when the underlying usbhid_device
has already been freed.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-08-02 13:48:04 +02:00
Jiri Kosina
cda5ecf80b USB HID: fix memory leak of usbhid_device
Add forgotten freeing of usbhid_device structure.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-08-02 13:48:03 +02:00
Jesper Juhl
de1a7b0328 USB HID: fix a possible NULL pointer dereference when we fail to allocate memory
If, in usb_hid_configure(), we fail to allocate storage for 'usbhid',
 "if (!(usbhid = kzalloc(sizeof(struct usbhid_device), GFP_KERNEL)))",
then we'll jump to the 'fail:' label where we have this code:
        usb_free_urb(usbhid->urbin);
        usb_free_urb(usbhid->urbout);
        usb_free_urb(usbhid->urbctrl);
Since we got here because we couldn't allocate storage for 'usbhid',
what we have here is a NULL pointer dereference - ouch...

This patch solves that little problem by adding a new
'fail_no_usbhid:' label after the problematic calls to
usb_free_urb() and jumps to that one instead, in the problem case.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-08-02 13:48:03 +02:00
Christian Lamparter
04a9b7ffce USB HID: add ASUS LCM to the blacklist
Some of ASUS' notebooks (e.g G Series) include a tiny oled display, which is
attached to an internal USB bus. Unfortunatly the device reports a wrong
DeviceDescriptor and is therefore identified as a HID device...

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-08-02 13:48:03 +02:00
Phil Dibowitz
9fdcfed8eb USB HID: Add all Logitech Harmonies to blacklist
This patch adds the entire range of Logitech's ProductIDs that are reserved
for their Harmony remotes. The in-kernel HID driver can't do anything with
these, and now there is a GPL user-space application that can handle them:
  http://www.sf.net/projects/harmonycontrol

Signed-off-by: Phil Dibowitz <phil@ipom.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-08-02 13:48:03 +02:00
Jiri Kosina
2dea64b4aa USB HID: update description of USBHID in MAINTAINERS
Make it more clear to users what kinds of hardware USBHID handles,
so that they can send reports and queries properly.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-08-02 13:48:03 +02:00
Tino Keitel
3e1928e879 HID: remove the Applie IR sensor from the hid_blacklist
The IR sensor in some newer Apple computers has no other
driver in the kernel, yet. However, the macmini driver in lirc
requires a HID device for the IR sensor.

Cc: Soeren Sonnenburg <kernel@nn7.de>
Signed-off-by: Tino Keitel <tino.keitel@tikei.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2007-08-02 13:48:03 +02:00
Linus Torvalds
1ed4395035 Merge branch 'release' of 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] ITC: Reduce rating for ITC clock if ITCs are drifty
  [IA64] SN2: Fix up sn2_rtc clock
  [IA64] Fix wrong access to irq_desc[] in iosapic_register_intr().
  [IA64] Fix possible race in destroy_and_reserve_irq()
  [IA64] Fix registered interrupt check
  [IA64] Remove a few duplicate includes
  [IA64] Allow smp_call_function_single() to current cpu
  [IA64] fix a few section mismatch warnings
2007-08-01 20:48:54 -07:00
Linus Torvalds
878701db07 Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6:
  scc_pata: PIO fixes
  piix/slc90e66: fix PIO1 handling in ->speedproc method (take 2)
  jmicron: PIO fixes
  it8213: PIO fixes (take 2)
  cs5535: PIO fixes
  cs5520: fix PIO auto-tuning in ->ide_dma_check method
  drivers/scsi/ide-scsi.c: kmalloc + memset conversion to kzalloc
  drivers/ide/arm/icside.c: kmalloc + memset conversion to kzalloc
  ide: eliminate warnings in ide-tape.c
  ide: fix runtogether printk's in cmd64x IDE driver
  sis5513: Add FSC Amilo A1630 PCI subvendor/dev to laptops
  alim15x3: Correct HP detect
  ide: Fix an overrun found in the CS5535 IDE driver
2007-08-01 20:48:42 -07:00
David Howells
04668873da FRV: Enable the MB86943 PCI arbiter correctly
Enable the MB93090 motherboard's MB86943 PCI arbiter correctly by assigning to
the register rather than comparing against it.  This is required to support
bus mastering.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-01 20:48:17 -07:00
Linus Torvalds
b562548183 Merge branch 'upstream-linus' of 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:
  pata_sis: fix MWDMA for <= UDMA66 chipsets and UDMA for UDMA33 chipsets
  libata: blacklist SAMSUNG HD401LJ / ZZ100-15 for NCQ
  ata_piix: add Tecra M3 to broken suspend blacklist
  ata_piix: implement piix_borken_suspend()
  pci: rename __pci_reenable_device() to pci_reenable_device()
  libata-sff; Unbreak non DMA capable controllers again
  pata_cmd64x: Correct the speed ranges
2007-08-01 20:47:00 -07:00
Thomas Gleixner
0fc4969b86 genirq: temporary fix for level-triggered IRQ resend
Marcin Slusarz reported a ne2k-pci "hung network interface" regression.

delayed disable relies on the ability to re-trigger the interrupt in the
case that a real interrupt happens after the software disable was set.
In this case we actually disable the interrupt on the hardware level
_after_ it occurred.

On enable_irq, we need to re-trigger the interrupt. On i386 this relies
on a hardware resend mechanism (send_IPI_self()).

Actually we only need the resend for edge type interrupts. Level type
interrupts come back once enable_irq() re-enables the interrupt line.

I assume that the interrupt in question is level triggered because it is
shared and above the legacy irqs 0-15:

	17:         12   IO-APIC-fasteoi   eth1, eth0

Looking into the IO_APIC code, the resend via send_IPI_self() happens
unconditionally. So the resend is done for level and edge interrupts.
This makes the problem more mysterious.

The code in question lib8390.c does

	disable_irq();
	fiddle_with_the_network_card_hardware()
	enable_irq();

The fiddle_with_the_network_card_hardware() might cause interrupts,
which are cleared in the same code path again,

Marcin found that when he disables the irq line on the hardware level
(removing the delayed disable) the card is kept alive.

So the difference is that we can get a resend on enable_irq, when an
interrupt happens during the time, where we are in the disabled region.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-01 20:46:22 -07:00
Heiko Carstens
fd0cbdd378 Fix WARN_ON() on bitfield ops for all other archs
Fixes WARN_ON() on bitfiels ops for all architectures that have
been left out in 8d4fbcfbe0.

Cc: Alexey Dobriyan <adobriyan@sw.ru>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Matthew Wilcox <matthew@wil.cx>
Cc: Kyle McMartin <kyle@parisc-linux.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-08-01 20:45:38 -07:00
Bartlomiej Zolnierkiewicz
3fcece6691 scc_pata: PIO fixes
* Use pio == 255 == "auto-tune" in scc_config_drive_for_dma() instead of
  forcing PIO4 on PIO fallback.  Fix comment while at it.

* Rename scc_tuneproc() to scc_tune_pio() and add scc_tuneproc() wrapper.
  Move finding of the best PIO mode and setting of transfer mode on the device
  to the new wrapper.

* Fix scc_tune_chipset() to tune PIO modes.  Do a small cleanup while at it.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:46 +02:00
Bartlomiej Zolnierkiewicz
0c8de52d76 piix/slc90e66: fix PIO1 handling in ->speedproc method (take 2)
* Don't call {piix,slc90e66}_dma_2_pio() for PIO modes in
  {piix,slc90e66}_tune_chipset().

* Add PIO1 handling to {piix,slc90e66}_tune_chipset().

* Bump driver version.  

v2:
* Remove PIO modes from {piix,slc90e66}_dma_2_pio(), they are no longer needed
  there (Noticed by Sergei)

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:46 +02:00
Bartlomiej Zolnierkiewicz
8b6b33be32 jmicron: PIO fixes
* Set transfer mode on the device in jmicron_tuneproc(),
  also add pio == 255 == "auto-tune" handling.

* Use jmicron_tuneproc() in jmicron_config_drive_for_dma().

* Remove no longer needed config_jmicron_chipset_for_pio().

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:46 +02:00
Bartlomiej Zolnierkiewicz
68aaf81503 it8213: PIO fixes (take 2)
* Rename it8213_tuneproc() to it8213_tune_pio() and add it8213_tuneproc()
  wrapper.  Move finding of the best PIO mode to the new wrapper.

* Add setting of transfer mode on the device to it8213_tuneproc().

* Don't call it8213_dma_2_pio() for PIO modes in it8213_tune_chipset().

* Use it8213_tuneproc() in it8213_config_drive_for_dma().

v2:
* Remove PIO modes from it8213_dma_2_pio(), they are no longer needed there
  (Noticed by Sergei)

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:46 +02:00
Bartlomiej Zolnierkiewicz
bc0b0b5c4b cs5535: PIO fixes
* Fix cs5535_tuneproc() to pass PIO transfer mode value instead of PIO mode
  number to cs5535_set_speed() (fixes random PIO timings being programmed
  and a possible OOPS).  Do a little cleanup while at it.

* Fix cs5535_set_speed() to check if the mate device is present (fixes PIO0
  taskfile timings being used if there is no other device on the cable).

* Use cs5535_tuneproc() in cs5535_dma_check().  The old code had the same
  issue as cs5535_tuneproc() and add additionally caused 0x00-0x04 transfer
  mode values (== default PIO, default PIO w/ IORDY + two invalid values)
  being set on the device instead of values 0x08-0x0c (XFER_PIO_[0,4]).

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:45 +02:00
Bartlomiej Zolnierkiewicz
070224339b cs5520: fix PIO auto-tuning in ->ide_dma_check method
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:45 +02:00
Mariusz Kozlowski
41ead3c918 drivers/scsi/ide-scsi.c: kmalloc + memset conversion to kzalloc
drivers/scsi/ide-scsi.c | 34642 -> 34536 (-106 bytes)
 drivers/scsi/ide-scsi.o | 171728 -> 171524 (-204 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:45 +02:00
Mariusz Kozlowski
cc60d8baa3 drivers/ide/arm/icside.c: kmalloc + memset conversion to kzalloc
Is this a bug? In original verison memset cleared sizeof(state) bytes
instead of sizeof(*state). If it was intentional then this patch is invalid.
If not intentional -> valid :) Please review.

Bart: Yes, it is a bug so this patch is a valid bugfix. :-)

 drivers/ide/arm/icside.c | 18883 -> 18849 (-34 bytes)

Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:44 +02:00
Stephen Rothwell
ab0579685d ide: eliminate warnings in ide-tape.c
drivers/ide/ide-tape.c: In function '__idetape_kmalloc_stage':
drivers/ide/ide-tape.c:2588: warning: large integer implicitly truncated to unsigned type
drivers/ide/ide-tape.c:2616: warning: large integer implicitly truncated to unsigned type

b_size in struct idetape_bh is an unsigned short.  We sometimes assigne
PAGE_SIZE to it and PAGE_SIZE can be 64K or larger, so make it a u32.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:44 +02:00
Meelis Roos
b37c6b842b ide: fix runtogether printk's in cmd64x IDE driver
Fix a couple of runtogether printks in cmd64x.c IDE driver by adding 
proper newlines.

Signed-off-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:44 +02:00
David Lamparter
1955f6814f sis5513: Add FSC Amilo A1630 PCI subvendor/dev to laptops
Recognise the FSC Amilo A1630's incarnation of a SiS5513 chip as laptop to
get UDMA100 support.

Signed-off-by: David Lamparter <equinox@diac24.net>
Cc: Lionel Bouton <Lionel.Bouton@inet6.fr>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:44 +02:00
Bartlomiej Zolnierkiewicz
8663fd6d0d alim15x3: Correct HP detect
Direct port of Alan's fix for pata_ali.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:43 +02:00
Jordan Crouse
32a70a817a ide: Fix an overrun found in the CS5535 IDE driver
As found by the Coverity checker, and reported by Adrian Bunk, this
fixes a overrun error in the CS5535 IDE driver.  Somebody got a little
excited with the if() statement - the CS5535 only supports UDMA 0-4.

Bart:
Not a bug per se since the upper layer will never feed this function
with speed > XFER_UDMA_4 (thanks to ->ultra_mask being set to 0x1f).

Worth fixing anyway.

Signed-off-by: Jordan Crouse <jordan.crouse@amd.com>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-08-01 23:46:42 +02:00
Christoph Lameter
b718f91c14 [IA64] ITC: Reduce rating for ITC clock if ITCs are drifty
Make sure to reduce the rating of the ITC clock if ITCs are drifty. If they
are drifting then we have not synchronized the ITC values, nor are we doing
the jitter compensation (useless since drift may increase the differentials
arbitrarily).

Without this patch it is possible that the ITC clock becomes selected as
the system clock on systems with drifty ITCs which will result in
nanosleep hanging.

One can still select the itc clock manually on such systems via

clocksource=itc

(Produces nice hangs on SGI Altix.)

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-08-01 14:02:36 -07:00
Christoph Lameter
40d4857534 [IA64] SN2: Fix up sn2_rtc clock
If the sn2_rtc clock is present then it is a must have since sn2_rtc
provides a synchronized time source on Altix systems. So elevate
the priority to 450. Otherwise the ITC would take precendence. Altix
systems currently do not boot because the ITC clocksource is broken. It
seems to assume that ITCs are synchronized and as a result nanosleep
hangs (may be fixed in a different patch).

While we are at it: Remove the sn2_mc definition. The sn2_rtc has a fixed
address. No point in reading the address from memory. Removing it avoids
touching one cacheline.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-08-01 13:15:14 -07:00
Kenji Kaneshige
224685c0d1 [IA64] Fix wrong access to irq_desc[] in iosapic_register_intr().
In error path we must unlock irq_desc[irq].lock before we change
'irq'.

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-08-01 11:57:59 -07:00
Bartlomiej Zolnierkiewicz
4761c06cb3 pata_sis: fix MWDMA for <= UDMA66 chipsets and UDMA for UDMA33 chipsets
* Fix MWDMA timings setup in sis_old_set_dmamode() and sis_66_set_dmamode().

  The old timings were overclocked (even worse behavior than sis5513 IDE driver
  which depends on BIOS to program correct timings), the new timings are taken
  from the datasheet (they match timings from ATA spec).

* Fix UDMA timings setup in sis_old_set_dmamode().

  Misplaced pci_write_config_word() call resulted in UDMA timings never
  being set.

* Fix comments for sis_133_early_set_dmamode() and sis_133_set_dmamode():
  - only the former function handles early SiS 961 bridges
  - both functions lack MWDMA timings setup

* Fix typos in sis_100_set_piomode() and sis_133_set_piomode() comments.

* Bump driver version.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-01 10:00:56 -04:00
Tejun Heo
5d6aca8def libata: blacklist SAMSUNG HD401LJ / ZZ100-15 for NCQ
SAMSUNG HD401LJ / ZZ100-15 does spurious completion of NCQ commands.
Disable NCQ.  Reported by Ulrich in bugzilla #8805.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Ulrich <stellplatz-nr.13a@datenparkplatz.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-01 10:00:56 -04:00
Tejun Heo
7abe79c353 ata_piix: add Tecra M3 to broken suspend blacklist
Add Tecra M3 to the broken suspend blacklist.  Tecra M3 doesn't have
proper DMI_PRODUCT_NAME but has an OEM_STRING instead.  Match it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-01 10:00:56 -04:00
Tejun Heo
8c3832ebeb ata_piix: implement piix_borken_suspend()
Separate out broken suspend blacklist matching into
piix_broken_suspend().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-08-01 10:00:56 -04:00