Commit Graph

96863 Commits

Author SHA1 Message Date
Michael Krufky
4bd5d1071d V4L/DVB (7844): tda18271: add tda_fail macro to log error cases
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:06 -03:00
Michael Krufky
10ed0bf4af V4L/DVB (7843): tda18271: fix error handling in tda18271c1_rf_tracking_filter_calibration
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:06 -03:00
Michael Krufky
20f4206379 V4L/DVB (7842): tda18271: fix error handling in tda18271c2_rf_tracking_filters_correction
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:05 -03:00
Michael Krufky
31940e3966 V4L/DVB (7841): tda18271: fix error handling in tda18271_channel_configuration
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:05 -03:00
Michael Krufky
9c41d456e2 V4L/DVB (7840): tda18271: make tda18271_set_standby_mode less verbose for basic debug
Only show debug from tda18271_set_standby_mode if DBG_ADV is set.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:05 -03:00
Michael Krufky
c151c32fd7 V4L/DVB (7839): tda18271: abort rf band calibration loop on errors
Abort rf band calibration loop for the TDA18271HD/C2 if an error is detected.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:04 -03:00
Michael Krufky
24124f784b V4L/DVB (7838): tda18271: fix error handling in tda18271c2_rf_cal_init path
fix error handling in tda18271c2_rf_cal_init immediate path

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:04 -03:00
Michael Krufky
d35fccaffd V4L/DVB (7837): tda18271: fix error handling in init and sleep paths
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:04 -03:00
Ingo Molnar
dc9d522a13 V4L/DVB (7836): cinergyT2 build fix
x86.git testing found the following build bug in v2.6.26-rc1:

  drivers/built-in.o: In function `cinergyt2_probe':
  cinergyT2.c:(.text+0xb6117): undefined reference to `input_allocate_device'
  cinergyT2.c:(.text+0xb6230): undefined reference to `input_register_device'
  cinergyT2.c:(.text+0xb623d): undefined reference to `input_free_device'

with the following config:

  http://redhat.com/~mingo/misc/config-Sun_May__4_22_06_54_CEST_2008.bad

The reason for the bug is that the cinergyT2 driver depends on
CONFIG_INPUT functionality, but if INPUT is modular it's still possible
to build CONFIG_DVB_CINERGYT2=y - which leads to missing symbols.

The solution is to make DVB_CINERGYT2 dependent on INPUT.

[ This solves the build problem - i have not tested the driver on this card. ]

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:03 -03:00
Randy Dunlap
696b9562df V4L/DVB (7835): multimedia/video: fix au0828 Kconfig
Fix undefined references in au0828:
  depends on USB and select VIDEO_TVEEPROM

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:03 -03:00
Ingo Molnar
28dd15b433 V4L/DVB (7834): build fix for drivers/media/video/au0828
x86.git testing found the following build failure in v2.6.26-rc1:

  MODPOST 424 modules
  ERROR: "tveeprom_hauppauge_analog" [drivers/media/video/au0828/au0828.ko] undefined!
  ERROR: "tveeprom_read" [drivers/media/video/au0828/au0828.ko] undefined!

with this config:

  http://redhat.com/~mingo/misc/config-Sat_May__3_22_28_58_CEST_2008.bad

this patch does what other video drivers do to utilize the
VIDEO_TVEEPROM functionality (and this resolves the build problem) - but
i have not checked it on real hardware and i have not checked whether
the fix is complete.

selections, so some items might still be missing - just not triggered
with this specific config.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:03 -03:00
Michael Krufky
f686d8c3b5 V4L/DVB (7832): xc5000: MEDIA_TUNER_XC5000 must select FW_LOADER
Fix the following build error:

drivers/built-in.o: In function `xc_load_fw_and_init_tuner':
xc5000.c:(.text+0x2dacd): undefined reference to `request_firmware'
xc5000.c:(.text+0x2daf0): undefined reference to `release_firmware'
xc5000.c:(.text+0x2db85): undefined reference to `release_firmware'
make[1]: *** [.tmp_vmlinux1] Error 1

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:02 -03:00
Robert Schedel
71a35fe2a3 V4L/DVB (7830): dvb_ca_en50221: Fix High CPU load in 'top' due to budget_av slot polling
This change addresses kernel bug #10459: In kernel 2.6.25 the
budget_av driver polls for an CI slot in 100ms intervals (because no
interrupt solution for budget_av cards is feasible due to HW reasons).
If no CI/CAM is connected to the DVB card, polling times out only after 250ms.
This periodic polling leads to high CPU load.

The change increases the polling interval for empty slots from 100ms to 5s.
Intervals for remaining slot states (invalid, in progress, ready) are unchanged,
as they are either temporary conditions or no timeout should occur.

Signed-off-by: Robert Schedel <r.schedel@yahoo.de>
Signed-off-by: Oliver Endriss <o.endriss@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:02 -03:00
Michael Krufky
fa146c6dce V4L/DVB (7829): cx23885: remove remaining references to dvb-pll
The cx23885 driver used to use dvb-pll for LG-TDVS-H064F support on the
FusionHDTV5 Express.  This has since been converted to use tuner-simple
instead, once digital tuning support was added to tuner-simple.

Since cx23885 no longer uses dvb-pll, remove the #include "dvb-pll.h",
and the DVB_PLL Kconfig selection.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:02 -03:00
Michael Krufky
36396c8932 V4L/DVB (7828): cx23885: update model matrix for Hauppauge WinTV HVR-1200 & WinTV HVR-1700
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:00 -03:00
Michael Krufky
3c3852cda6 V4L/DVB (7827): cx23885: add missing subsystem ID for Hauppauge HVR-1200 OEM
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:00 -03:00
Michael Krufky
74ee05109c V4L/DVB (7823): em28xx: add additional usb subids for Hauppauge HVR-950
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:00 -03:00
Mauro Carvalho Chehab
ef69c8e88b V4L/DVB (7813): Fix compilation, when V4L1_COMPAT is disabled
This driver uses some sysfs helper functions that are available only for legacy
drivers. It also requires linux/mm.h.

This patch fixes compiliation when not in compat mode.

Thanks to Ingo Molnar for identifying this issue.

Acked-by: Jaime Velasco Juan <jsagarribay@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:54:00 -03:00
Guennadi Liakhovetski
b7eccc404f V4L/DVB (7810): soc_camera: mt9v022 and mt9m001 depend on I2C
Both mt9v022 and mt9m001 cameras are controlled over the I2C bus.
Respectively, their drivers require I2C to be built successfully.
Thanks to Ingo Molnar for reporting the build-breakage.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:59 -03:00
Michael Krufky
b4edcc9083 V4L/DVB (7808): cx23885: fix kbuild dependencies
Thanks to Ingo Molnar for finding this.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:59 -03:00
Mauro Carvalho Chehab
0590d91c41 V4L/DVB (7807): cx88: Fix error handling, when dvb_attach() fails
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:59 -03:00
Mauro Carvalho Chehab
6430a5a368 V4L/DVB (7806): em28xx: dvb_unregister_frontend() shouldn't be called, if not registered yet
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:58 -03:00
Mauro Carvalho Chehab
f50090fc94 V4L/DVB (7805): saa7134: dvb_unregister_frontend() shouldn't be called, if not registered yet
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:58 -03:00
Mauro Carvalho Chehab
b538d28c2e V4L/DVB (7804): tea5767: Fix error logic
As pointed by Andrew Morton, the error testing were wrong. After reviewing
tea5767, it were returning a positive value for errors.

So, the double errors were cancelling each other.

This patch fix it properly. It also considers any positive value as ok, on
tuner-core.


Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:58 -03:00
Mauro Carvalho Chehab
09fee5f821 V4L/DVB (7802): tuner: Failures at tuner_attach were producing OOPS
As reported by Mike Galbraith <efault@gmx.de>:

[   13.666587] TUNER: Unable to find symbol tda829x_probe()
[   13.674638] tuner' 1-004b: chip found @ 0x96 (saa7133[0])
[   13.691175] DVB: Unable to find symbol tda9887_attach()
[   13.698968] BUG: unable to handle kernel NULL pointer dereference at 0000000000000000
[   13.709509] IP: [<ffffffff80302934>] strlcpy+0x11/0x36
[   13.711135] PGD be167067 PUD be140067 PMD 0
[   13.711137] Oops: 0000 [1] SMP

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:57 -03:00
Mauro Carvalho Chehab
d557dab5de V4L/DVB (7801): saa7134: detach frontend, if tuner or Diseqc attach fails
Before this patch, an error at tuner or diseqc were discarded by the driver.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:57 -03:00
Andrew Morton
a1355e5301 V4L/DVB (7800): tuner_symbol_probe(): don't do symbol_put() if symbol_request() failed
Because it goes BUG.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2008-05-14 02:53:56 -03:00
Valerie Clement
1930479c4b ext4: mballoc fix mb_normalize_request algorithm for 1KB block size filesystems
In case of inode preallocation, the number of blocks to allocate depends
on the file size and it is calculated in ext4_mb_normalize_request().
Each group in the filesystem is then checked to find one that can be
used for allocation; this is done in ext4_mb_good_group().

When a file bigger than 4MB is created, the requested number of blocks
to preallocate, calculated by ext4_mb_normalize_request is 4096.
However for a filesystem with 1KB block size, the maximum size of the
block buddies used by the multiblock allocator is 2048, so none of
groups in the filesystem satisfies the search criteria in
ext4_mb_good_group(). Scanning all the filesystem groups impacts
performance.

This was demonstrated by using a freshly created, 70GB, 1k block
filesystem, with caches dropped write before the test via
/proc/sys/vm/drop_caches, and with the filesystem mounted with
nodelalloc and nodealloc,nomballoc.  The time to write an 8 megabyte
file using "dd if=/dev/zero of=/mnt/test/fo bs=8k count=1k conv=fsync"
took 35.5091 seconds (236kB/s) with nodellaloc, and 0.233754 seconds
(35.9 MB/s) with the nodelloc,nomballoc options.  With a 1TB partition,
it took several minutes to write 8MB!

This patch modifies the algorithm in ext4_mb_normalize_group_request to
calculate the number of blocks to allocate by taking into account the
maximum size of free blocks chunks handled by the multiblock allocator.

It has also been tested for filesystems with 2KB and 4KB block sizes to
ensure that those cases don't regress.

Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Valerie Clement <valerie.clement@bull.net>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-05-13 19:31:14 -04:00
Jan Kara
2c8be6b222 ext4: fix typos in messages and comments (journalled -> journaled)
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-05-13 21:27:55 -04:00
Jan Kara
0623543b33 ext4: fix synchronization of quota files in journal=data mode
In journal=data mode, it is not enough to do write_inode_now as done in
vfs_quota_on() to write all data to their final location (which is
needed for quota_read to work correctly).  Calling journal_flush() does
its job.

Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-05-13 19:11:51 -04:00
Jan Kara
cd59e7b978 ext4: Fix mount messages when quota disabled
When quota is disabled, we should not print 'journaled quota not
supported' when user tried to mount non-journaled quota. Also fix typo
in the message.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-05-13 19:11:51 -04:00
Jan Kara
dfc5d03f12 ext4: correct mount option parsing to detect when quota options can be changed
We should not allow user to change quota mount options when quota is
just suspended.  It would make mount options and internal quota state
inconsistent.  Also we should not allow user to change quota format when
quota is turned on.  On the other hand we can just silently ignore when
some option is set to the value it already has (mount does this on
remount).

Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-05-13 19:11:51 -04:00
Linus Torvalds
4ef7e3e90f Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86: user_regset_view table fix for ia32 on 64-bit
  x86: arch/x86/mm/pat.c - fix warning
  x86: fix csum_partial() export
  x86: early_init_centaur(): use set_cpu_cap()
  x86: fix app crashes after SMP resume
  x86: wakeup.lds.S - section ordering fix
  x86: [VOYAGER] fix duplicate phys_cpu_present_map symbol
  x86/pci: fix broken ISA DMA
2008-05-13 12:33:56 -07:00
Steve Wise
a58e58fafd RDMA/cxgb3: Wrap the software send queue pointer as needed on flush
cxio_flush_sq() was failing to wrap around the software send queue
causing garbage completion entries on a flush operation.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-05-13 11:52:55 -07:00
Roland Dreier
f018c7e177 IB/ipath: Change ipath_devdata.ipath_sdma_status to be unsigned long
Andrew Morton <akpm@linux-foundation.org> pointed out that bitops
should take an unsigned long * arg.  However, the ipath driver was
doing bitops on struct ipath_devdata.ipath_sdma_status, which is u64.
Change this member to unsigned long to avoid tons of warnings when x86
fixes the bitops to take unsigned long * instead of void *.

Also, change the IPATH_SDMA_RUNNING and IPATH_SDMA_SHUTDOWN bit
numbers to 30 and 31 (instead of 62 and 63) so that we're not setting
another booby trap for someone who tries to make ipath work on a
32-bit architecture.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-05-13 11:51:23 -07:00
Pavel Emelyanov
40d97692fb IB/ipath: Make ipath_portdata work with struct pid * not pid_t
The official reason is "with the presence of pid namespaces in the
kernel using pid_t-s inside one is no longer safe."

But the reason I fix this right now is the following:

About a month ago (when 2.6.25 was not yet released) there still was a
one last caller of a to-be-deprecated-soon function find_pid() - the
kill_proc() function, which in turn was only used by nfs callback
code.

During the last merge window, this last caller was finally eliminated
by some NFS patch(es) and I was about to finally kill this kill_proc()
and find_pid(), but found, that I was late and the kill_proc is now
called from the ipath driver since commit 58411d1c ("IB/ipath: Head of
Line blocking vs forward progress of user apps").

So here's a patch that fixes this code to use struct pid * and (!)
the kill_pid routine.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-05-13 11:45:32 -07:00
Ralph Campbell
74116f580b IB/ipath: Fix RDMA read response sequence checking
If an out of sequence RDMA read response middle or last packet is
received, we should only resend the RDMA read request on the first
out of sequence packet and drop subsequent out of sequence packets
otherwise, we get "too many retries".

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-05-13 11:42:20 -07:00
Ralph Campbell
e509be898d IB/ipath: Fix many locking issues when switching to error state
The send DMA hardware queue voided a number of prior assumptions about
when a send is complete which led to completions being generated out of
order.  There were also a number of locking issues when switching the QP
to the error or reset states, and we implement the IB_QPS_SQD state.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-05-13 11:41:29 -07:00
Ralph Campbell
53dc1ca194 IB/ipath: Fix RC and UC error handling
When errors are detected in RC, the QP should transition to the
IB_QPS_ERR state, not the IB_QPS_SQE state. Also, when the error is on
the responder side, the receive work completion error was incorrect
(remote vs. local).

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-05-13 11:40:25 -07:00
Roland Dreier
dd37818dbd RDMA/nes: Fix up nes_lro_max_aggr module parameter
Fix some bugs with the max_aggr module parameter added with LRO support:

 - The module parameter value ignored and not actually used to set
   lro_mgr.max_aggr.
 - MODULE_PARM_DESC had a typo "_mro_" instead of "_lro_" so it didn't
   end up describing the actual module parameter.
 - The nes_lro_max_aggr variable was declared as unsigned, but the
   module_param line said "int" instead of "uint" for the type.
 - The default value for the parameter was stuck in the permissions
   field of module_param, which led to nonsensical permissions for the
   file under /sys/module/iw_nes/param.
 - The parameter was used in only one file but defined in another, which
   led to the variable being global for no good reason.  Move everything
   related to the parameter to the file nes_hw.c where it is actually
   used.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2008-05-13 11:27:25 -07:00
Linus Torvalds
9604006d28 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
  [SCSI] qla1280: Fix queue depth problem
  [SCSI] aha152x: Fix oops on module removal
  [SCSI] aha152x: fix init suspiciously returned 1, it should follow 0/-E convention
  [SCSI] libiscsi regression in 2.6.25: fix setting of recv timer
  [SCSI] libiscsi regression in 2.6.25: fix nop timer handling
  [SCSI] gdth: fix Error: Driver 'gdth' is already registered, aborting...
  [SCSI] gdth: fix timer handling
2008-05-13 11:24:51 -07:00
Linus Torvalds
25c55d9720 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  ACPI/PCI: another multiple _OSC memory leak fix
  x86/PCI: X86_PAT & mprotect
  PCI: enable nv_msi_ht_cap_quirk for ALi bridges
  PCI: Make the intel-iommu_wait_op macro work when jiffies are not running
  ACPI/PCI: handle multiple _OSC
  ACPI/PCI: handle multiple _OSC
  x86/PCI: fix broken ISA DMA
  PCI ACPI: fix uninitialized variable in __pci_osc_support_set
2008-05-13 10:48:35 -07:00
Roland McGrath
1f465f4e47 x86: user_regset_view table fix for ia32 on 64-bit
The user_regset_view table for the 32-bit regsets on the 64-bit build had
the wrong sizes for the FP regsets.  This bug had no user-visible effect
(just on kernel modules using the user_regset interfaces and the like).
But the fix is trivial and risk-free.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:40:20 +02:00
Pranith Kumar
afc8534380 x86: arch/x86/mm/pat.c - fix warning
fix this warning:

 arch/x86/mm/pat.c: In function `phys_mem_access_prot_allowed':
 arch/x86/mm/pat.c:558: warning: long long unsigned int format, long
 unsigned int arg (arg 6)
 arch/x86/mm/pat.c: In function `map_devmem':
 arch/x86/mm/pat.c:580: warning: long long unsigned int format, long
 unsigned int arg (arg 6)

Signed-off-by: D Pranith Kumar <bobby.prani@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:39:30 +02:00
Ingo Molnar
89804c022f x86: fix csum_partial() export
Fix this symbol export problem:

    Building modules, stage 2.
    MODPOST 193 modules
    ERROR: "csum_partial" [fs/reiserfs/reiserfs.ko] undefined!
    make[1]: *** [__modpost] Error 1
    make: *** [modules] Error 2

This is due to a known weakness of symbol exports: if a symbol's
only in-core user is an EXPORT_SYMBOL from a lib-y section, the
symbol is not linked in.

The solution is to move the export to x8664_ksyms_64.c - but the real
solution would be to fix kbuild.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:38:47 +02:00
Andrew Morton
8c45a4e4f2 x86: early_init_centaur(): use set_cpu_cap()
arch/x86/kernel/setup_64.c:954: warning: passing argument 2 of 'set_bit' from incompatible pointer type

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:37:38 +02:00
Hugh Dickins
61165d7a03 x86: fix app crashes after SMP resume
After resume on a 2cpu laptop, kernel builds collapse with a sed hang,
sh or make segfault (often on 20295564), real-time signal to cc1 etc.

Several hurdles to jump, but a manually-assisted bisect led to -rc1's
d2bcbad5f3 x86: do not zap_low_mappings
in __smp_prepare_cpus.  Though the low mappings were removed at bootup,
they were left behind (with Global flags helping to keep them in TLB)
after resume or cpu online, causing the crashes seen.

Reinstate zap_low_mappings (with local __flush_tlb_all) for each cpu_up
on x86_32.  This used to be serialized by smp_commenced_mask: that's now
gone, but a low_mappings flag will do.  No need for native_smp_cpus_done
to repeat the zap: let mem_init zap BSP's low mappings just like on UP.

(In passing, fix error code from native_cpu_up: do_boot_cpu returns a
variety of diagnostic values, Dprintk what it says but convert to -EIO.
And save_pg_dir separately before zap_low_mappings: doesn't matter now,
but zapping twice in succession wiped out resume's swsusp_pg_dir.)

That worked well on the duo and one quad, but wouldn't boot 3rd or 4th
cpu on P4 Xeon, oopsing just after unlock_ipi_call_lock.  The TLB flush
IPI now being sent reveals a long-standing bug: the booting cpu has its
APIC readied in smp_callin at the top of start_secondary, but isn't put
into the cpu_online_map until just before that unlock_ipi_call_lock.

So native_smp_call_function_mask to online cpus would send_IPI_allbutself,
including the cpu just coming up, though it has been excluded from the
count to wait for: by the time it handles the IPI, the call data on
native_smp_call_function_mask's stack may well have been overwritten.

So fall back to send_IPI_mask while cpu_online_map does not match
cpu_callout_map: perhaps there's a better APICological fix to be
made at the start_secondary end, but I wouldn't know that.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-05-13 19:36:12 +02:00
Jeremy Higdon
af5741c6de [SCSI] qla1280: Fix queue depth problem
The qla1280 driver was ANDing the output value of mailbox register
0 with (1 << target-number) to determine whether to enable queueing
on the target in question.

But mailbox register 0 has the status code for the mailbox command
(in this case, Set Target Parameters).  Potential values are:
/*
 * ISP mailbox command complete status codes
 */

So clearly that is in error.  I can't think what the author of that
line was looking for in a mailbox register, so I just eliminated the
AND.  flag is used later in the function, and I think that the later
usage was also wrong, though it was used to set values that aren't
used.  Oh well, an overhaul of this driver is not what I want to do
now -- just a bugfix.

After the fix, I found that my disks were getting a queue depth of
255, which is far too many.  Most SCSI disks are limited to 32 or
64.  In any case, there's no point, queueing up a bunch of commands
to the adapter that will just result in queue full or starve other
targets from being issued commands due to running out of internal
memory.  So I dropped default queue depth to 32 (from which 1 is
subtracted elsewhere, giving net of 31).

I tested with a Seagate ST336753LC, and results look good, so
I'm satisfied with this patch.

Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Acked-by: Jes Sorensen <jes@sgi.com>
Cc: Stable Tree <stable@kernel.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-05-13 12:16:23 -05:00
Kenji Kaneshige
c4e5fadd2a ACPI/PCI: another multiple _OSC memory leak fix
The acpi_query_osc() function can be called for the ACPI object that
doesn't have _OSC method. In this case, acpi_get_osc_data() would
allocate a useless memory region. To avoid this, we need to check the
existence of _OSC before calling acpi_get_osc_data() in acpi_query_osc().

Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-05-13 09:51:54 -07:00
Venki Pallipadi
77db988564 x86/PCI: X86_PAT & mprotect
Some versions of X used the mprotect workaround to change caching type from UC
to WB, so that it can then use mtrr to program WC for that region [1].  Change
the mmap of pci space through /sys or /proc interfaces from UC to UC_MINUS.
With this change, X will not need to use mprotect workaround to get WC type
since the MTRR mapping type will be honored.

The bug in mprotect that clobbers PAT bits is fixed in a follow on patch. So,
this X workaround will stop working as well.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-05-13 09:51:54 -07:00