Граф коммитов

179070 Коммитов

Автор SHA1 Сообщение Дата
Linus Torvalds 642a74e7a4 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] lpfc 8.3.7: Update Driver version to 8.3.7
  [SCSI] lpfc 8.3.7: Fix discovery failures.
  [SCSI] lpfc 8.3.7: Fix SCSI protocol related errors.
  [SCSI] lpfc 8.3.7: Fix hardware/SLI relates issues
  [SCSI] lpfc 8.3.7: Fix NPIV operation errors
  [SCSI] lpfc 8.3.7: Fix FC protocol errors
  [SCSI] stex: fix scan of nonexistent lun
  [SCSI] pmcraid: fix to avoid twice scsi_dma_unmap for a command
  [SCSI] qla2xxx: Update version number to 8.03.01-k9.
  [SCSI] qla2xxx: Added to EEH support.
  [SCSI] qla2xxx: Extend base EEH support in qla2xxx.
  [SCSI] qla2xxx: Fix for a multiqueue bug in CPU affinity mode
  [SCSI] qla2xxx: Get the link data rate explicitly during device resync.
  [SCSI] cxgb3i: Fix a login over vlan issue
2010-01-06 10:45:50 -08:00
Zhenyu Wang 823f68fd64 drm/i915: remove full registers dump debug
This one reverts 9e3a6d155e.
As reported by http://bugzilla.kernel.org/show_bug.cgi?id=14485,
this dump will cause hang problem on some machine. If something
really needs this kind of full registers dump, that could be done
within intel-gpu-tools.

Cc: Ben Gamari <bgamari.foss@gmail.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:14 -08:00
Zhao Yakui 4547668a05 drm/i915: Add DP dpll limit on ironlake and use existing DPLL search function
For some clocks, the old Ironlake DPLL calculator wold give m/n/p
combinations that didn't match the spreadsheet of what HW validation
tests.  Instead, use the G4X DPLL calculator, which does a better job
at it.

So we use the intel_g4x_find_best_pll to calculate the DPLL for CRT/HDMI/LVDS
on ironlake. At the same time to consider the dpll setting for display port, we
add the display port DPLL limit on ironlake, which will directly use the
function of intel_find_pll_ironlake_dp to get the corresponding dpll setting.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:13 -08:00
Zhao Yakui e5a95eb778 drm/i915: Select the correct BPC for LVDS on Ironlake
Select the correct BPC for LVDS on Ironlake. If it is 18-bit LVDS panel,
the BPC will be 6. When it is 24-bit LVDS panel, the BPC will 8.
At the same time the BPC will be 8 when the output device is CRT/HDMI/DP.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:13 -08:00
Zhao Yakui 8faf3b3174 drm/i915: Make the BPC in FDI rx/transcoder be consistent with that in pipeconf on Ironlake
Make the BPC in FDI rx/transcoder be consistent with that in pipeconf on Ironlake.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:12 -08:00
Zhao Yakui 898822ce95 drm/i915: Enable/disable the dithering for LVDS based on VBT setting
Enable/disable the dithering for LVDS based on VBT setting. On the 965/g4x
platform the dithering flag is defined in LVDS register. And on the ironlake
the dithering flag is defined in pipeconf register.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:11 -08:00
Chris Wilson e3d8affb0d drm/i915: Permit pinning whilst the device is 'suspended'
As pinning (allocating and binding GTT memory) does not actually invoke
GPU commands, it is safe, and indeed is attempted, during resumption
from suspension:

  [drm:intel_init_clock_gating] *ERROR* failed to pin power context: -16

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:11 -08:00
Chris Wilson 9ea8d05932 drm/i915: Hold struct mutex whilst pinning power context bo.
Hugh found an error path where we were attempting to unref a bo without
holding the struct mutex:

  [drm:intel_init_clock_gating] *ERROR* failed to pin power context: -16
  ------------[ cut here ]------------
  WARNING: at drivers/gpu/drm/drm_gem.c:438 drm_gem_object_free+0x20/0x5e()
  Hardware name: ESPRIMO Mobile V5505
  Modules linked in: snd_pcm_oss snd_mixer_oss snd_seq snd_seq_device
  Pid: 3793, comm: s2ram Not tainted 2.6.33-rc2 #4
  Call Trace:
   [<7815298e>] warn_slowpath_common+0x59/0x6b
   [<781529b3>] warn_slowpath_null+0x13/0x18
   [<78317c1a>] ? drm_gem_object_free+0x20/0x5e
   [<78317c1a>] drm_gem_object_free+0x20/0x5e
   [<78317bfa>] ? drm_gem_object_free+0x0/0x5e
   [<7829df11>] kref_put+0x38/0x45
   [<7833a5f0>] intel_init_clock_gating+0x232/0x271
   [<78317bfa>] ? drm_gem_object_free+0x0/0x5e
   [<7832c307>] i915_restore_state+0x21a/0x2b3
   [<7832379d>] i915_resume+0x3c/0xbb
   [<78174fe5>] ? trace_hardirqs_on_caller+0xfc/0x123
   [<7831c756>] ? drm_class_resume+0x0/0x3e
   [<7831c78d>] drm_class_resume+0x37/0x3e
   [<78351e0a>] legacy_resume+0x1e/0x51
   [<78351ece>] device_resume+0x91/0xab
   [<7831c756>] ? drm_class_resume+0x0/0x3e
   [<78352226>] dpm_resume+0x58/0x10f
   [<783522fb>] dpm_resume_end+0x1e/0x2c
   [<78180f80>] suspend_devices_and_enter+0x61/0x84
   [<78180ff8>] enter_state+0x55/0x83
   [<7818091c>] state_store+0x94/0xaa
   [<7829d09e>] kobj_attr_store+0x1e/0x23
   [<782098e0>] sysfs_write_file+0x66/0x99
   [<781cd2f0>] vfs_write+0x8a/0x108
   [<781cd408>] sys_write+0x3c/0x63
   [<78125c10>] sysenter_do_call+0x12/0x36
  ---[ end trace a343537f29950fda ]---

It is in fact slightly more insiduous that first appears since we are
attempting to not just free the object without the lock, but are trying
to do the whole bo manipulation without holding the lock.

Reported-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@kernel.org
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:10 -08:00
Andrew Morton 29bd0ae25f drm/i915: fix unused var
drivers/gpu/drm/i915/i915_dma.c: In function 'i915_driver_load':
drivers/gpu/drm/i915/i915_dma.c:1114: warning: 'll_base' may be used uninitialized in this function

Partly this is because gcc isn't smart enough.  But `ll_base' does get used
uninitialised in the DRM_DEBUG() call.

Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Dave Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:03 -08:00
Tobias Klauser 69e302a998 drm/i915: Storage class should be before const qualifier
The C99 specification states in section 6.11.5:

The placement of a storage-class specifier other than at the beginning
of the declaration specifiers in a declaration is an obsolescent
feature.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:02 -08:00
Jesse Barnes cda9d05c49 drm/i915: remove render reclock support
This code generally fails to adjust the render clock, and when it does,
it conflicts with some other register settings and can cause problems.

So remove this code altogether.  I'm reworking it now to do the right
thing, but the only bit it will share is the VBT check for whether
reclocking is supported, so I'm leaving that bit.

Reverts most of 652c393a33 ("add dynamic
clock frequency control"), though for many the regressions showed up
in the later 181a5336d6 ("Fix render
reclock availability detection").

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:40:02 -08:00
Andrew Lutomirski 1d3c36ad41 drm/i915: Fix RC6 suspend/resume
We restored RC6 twice on resume, even with modesetting off.  Instead,
only restore it once and skip RC6 initialization entirely in non-KMS mode.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Tested-by: Jeff Chua <jeff.chua.linux@gmail.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:39:53 -08:00
Jesse Barnes 76446cac68 drm/i915: execbuf2 support
This patch adds a new execbuf ioctl, execbuf2, for use by clients that
want to control fence register allocation more finely.  The buffer
passed in to the new ioctl includes a new relocation type to indicate
whether a given object needs a fence register assigned for the command
buffer in question.

Compatibility with the existing execbuf ioctl is implemented in terms
of the new code, preserving the assumption that fence registers are
required for pre-965 rendering commands.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[ickle: Remove pre-emptive clear_fence_reg()]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
[anholt: Removed dmesg spam]
Signed-off-by: Eric Anholt <eric@anholt.net>
2010-01-06 09:39:39 -08:00
Miguel Aguilar c92b29ec4a DaVinci: DM365: Add the device_enable for the DaVinci Keyscan
Adds the device_enable function to the DaVinci Keyscan platform data
to setup the PINMUX configuration.

It also removes #ifdef from the DM365 EVM board in order to load it
properly as a module.

Signed-off-by: Miguel Aguilar <miguel.aguilar@ridgerun.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-06 08:57:45 -08:00
Sekhar Nori ae88e05a5a davinci: enable ARCH_HAS_HOLES_MEMORYMODEL for DaVinci
All DaVinci platforms include a DSP or co-processor for
audio/video acceleration.

While creating memory for the DSP/co-processor, system
integrator can end up creating a hole in the memory map
of the sort:

<kernel memory> <hole (memory for DSP)> <kernel memory>

This sort of configuration needs ARCH_HAS_HOLES_MEMORYMODEL
enabled. See further details see this discussion on ARM
linux mailing list:
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg15262.html

The patch is boot tested on OMAP-L138, DM6446 and DM355 EVMs

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
CC: Sriramakrishnan <srk@ti.com>
CC: Khasim Syed Mohammed <khasim@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-06 08:57:44 -08:00
Sekhar Nori 75c99bb000 davinci: da8xx/omap-l1: mark RTC as a wakeup source
On da850, RTC alarm is a wakeup source from deep sleep.
Mark it as a wakeup source after the rtc platform device
is registered.

Without this patch, the rtc-omap driver suspends the RTC
during the suspend sequence and hence it cannot wakeup the
SoC.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-06 08:57:44 -08:00
Sekhar Nori 2d3f595016 davinci: cp_intc: provide set_wake function
There is nothing special to be done for interrupts
which can wakeup the device from sleep on CP-INTC,
but not having a set_wake implemented prevents use
of common drivers which expect this function to be
implemented for all wakeup interrupt sources.

This patch fixes the issue encountered when using the
omap-rtc driver on DA850. On DA850 the RTC alarm
interrupt is used to wake up the SoC from deep sleep
mode. Without this patch, the disable_irq_wake throws
an unbalanced wake disable warning while resuming
because the previous enable call fails for lack of
set_wake implementation.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-06 08:57:44 -08:00
Vaibhav Hiremath 077639f443 Davinci VPFE Capture: Take i2c adapter id through platform data
The I2C adapter ID is actually depends on Board and may vary, Davinci
uses id=1, but in case of AM3517 id=3.

So modified respective davinci board files.

Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
2010-01-06 08:57:43 -08:00
Linus Torvalds c6f7afaeed Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
* 'for-linus' of git://git.open-osd.org/linux-open-osd:
  exofs: simple_write_end does not mark_inode_dirty
  exofs: fix pnfs_osd re-definitions in pre-pnfs trees
2010-01-06 01:41:07 -08:00
Linus Torvalds 34e2fde8a4 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm: (22 commits)
  ARM: 5865/1: nuc900 ethernet driver needs mii
  ARM: 5864/1: Implement arch_reset() in NUC900
  ARM: 5863/1: fix bugs of clock source of NUC900
  ARM: 5858/1: Remove unused vma_vm_flags macro from v7wbi_flush_user_tlb_range
  imx/mx3: depend on USB_ULPI for otg_ulpi_create
  ARM: MX3: make CPU revision number detection work on all boards
  mx25: pdk: add platform code for FEC support
  mx25: add support for FEC on i.MX25
  mx25: s/NO_PAD_CTL/NO_PAD_CTRL/
  mx31moboard: fix usbh device names
  mx3: add support for the mt9v022 camera sensor to pcm037 platform
  mx27: mxt_td60: Remove not used UART pins
  [ARM] pxa/poodle: fix incorrect 'gpio_card_detect' of MMC
  [ARM] pxa/zylonite: simplify reduntant gpio settings on mmc slot
  [ARM] pxa/ttc_dkb: remove duplicate macro definition
  [ARM] pxa/zeus: provide power-source information when APM is enabled
  [ARM] pxa/zeus: relax memory timings on Zeus ethernet ports
  [ARM] pxa/zeus: make internal zeus_get_pcb_info static
  [ARM] pxa/littleton: select CPU_PXA300 and CPU_PXA310
  [ARM] pxa/littleton: add UART3 GPIO config
  ...
2010-01-06 01:16:26 -08:00
Ben Hutchings 10b465aaf9 modules: Skip empty sections when exporting section notes
Commit 35dead4 "modules: don't export section names of empty sections
via sysfs" changed the set of sections that have attributes, but did
not change the iteration over these attributes in add_notes_attrs().
This can lead to add_notes_attrs() creating attributes with the wrong
names or with null name pointers.

Introduce a sect_empty() function and use it in both add_sect_attrs()
and add_notes_attrs().

Reported-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Cc: stable@kernel.org
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-06 01:11:29 -08:00
Alex Deucher 1d3d51b6d2 drm/radeon/kms: add missing breaks in i2c and ss lookups
Should fix fdo bug 25741

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-01-06 11:31:56 +10:00
Alex Deucher 246263ccc3 drm/radeon/kms: add primary dac adj values table
Look up primary dac adj values from the table if
there is no bios or bios dac table to reference.

The lookup table may need to be adjusted for certain
families.

Should fix kernel bug 14945.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-01-06 11:31:55 +10:00
Alex Deucher b9597a1c6f drm/radeon/kms: fallback to default connector table
if necessary for combios

Some early combios radeon cards don't have a connector
table or dac table in the bios, if they do not, fallback
to the default tables.

Should fix kernel bug 14963.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-01-06 11:31:53 +10:00
Linus Torvalds 74d2e4f8d7 Linux 2.6.33-rc3 2010-01-05 16:02:46 -08:00
Linus Torvalds eb1c838fca Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc64: Fix Niagara2 perf event handling.
  sparc64: Fix NMI programming when perf events are active.
  bbc_envctrl: Clean up properly if kthread_run() fails.
2010-01-05 16:01:58 -08:00
Rusty Russell db677ffa5f Revert "x86: Side-step lguest problem by only building cmpxchg8b_emu for pre-Pentium"
This reverts commit ae1b22f6e4.

As Linus said in 982d007a6ee: "There was something really messy about
cmpxchg8b and clone CPU's, so if you enable it on other CPUs later, do it
carefully."

This breaks lguest for those configs, but we can fix that by emulating
if we have to.

Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=14884
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-05 16:01:35 -08:00
Linus Torvalds 6307daad84 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2:
  ocfs2: Handle O_DIRECT when writing to a refcounted cluster.
2010-01-05 16:01:04 -08:00
Linus Torvalds f843b0fcc7 Merge branch 'for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6
* 'for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound-2.6:
  ASoC: fixup oops in generic AC97 codec glue
  ASoC: fix params_rate() macro use in several codecs
  ASoC: fsi-ak4642: Remove ak4642_add_i2c_device
2010-01-05 15:59:56 -08:00
Heiko Carstens 409d02ef6d x86: copy_from_user() should not return -EFAULT
Callers of copy_from_user() expect it to return the number of bytes
it could not copy. In no case it is supposed to return -EFAULT.

In case of a detected buffer overflow just return the requested
length. In addition one could think of a memset that would clear
the size of the target object.

[ hpa: code is not in .32 so not needed for -stable ]

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Arjan van de Ven <arjan@linux.intel.com>
LKML-Reference: <20100105131911.GC5480@osiris.boeblingen.de.ibm.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-05 13:45:06 -08:00
Li Jie dc2f9c5a13 ARM: 5865/1: nuc900 ethernet driver needs mii
nuc900 ethernet driver uses mii_xx_xx serials api, so mii module should be selected.

Signed-off-by: lijie <eltshanli@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-05 20:53:07 +00:00
Li Jie 58b2e0a2dd ARM: 5864/1: Implement arch_reset() in NUC900
Implement arch_reset(), reboot from shell become possible.

Signed-off-by: lijie <eltshanli@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-05 20:52:45 +00:00
Li Jie 1368c51c50 ARM: 5863/1: fix bugs of clock source of NUC900
This patch fix following bugs:

1. typo error, CLOCK_EVT_MODE_PERIODIC -> CLOCK_EVT_FEAT_PERIODIC
2. TCSR register of timer1 missed PRESCALE
3. timer1 should be enabled before register it to clock source.

Signed-off-by: lijie <eltshanli@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-05 20:52:10 +00:00
Bahadir Balban 070f1f178c ARM: 5858/1: Remove unused vma_vm_flags macro from v7wbi_flush_user_tlb_range
Signed-off-by: Bahadir Balban <bbalban@b-labs.co.uk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-05 20:52:06 +00:00
David S. Miller e04ed38d4e sparc64: Fix Niagara2 perf event handling.
For chips like Niagara2 that have true overflow indications
in the %pcr (which we don't actually need and don't use)
the interrupt signal persists until the overflow bits are
cleared by an explicit %pcr write.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-04 23:16:03 -08:00
Boaz Harrosh efd124b999 exofs: simple_write_end does not mark_inode_dirty
exofs uses simple_write_end() for it's .write_end handler. But
it is not enough because simple_write_end() does not call
mark_inode_dirty() when it extends i_size. So even if we do
call mark_inode_dirty at beginning of write out, with a very
long IO and a saturated system we might get the .write_inode()
called while still extend-writing to file and miss out on the last
i_size updates.

So override .write_end, call simple_write_end(), and afterwords if
i_size was changed call mark_inode_dirty().

It stands to logic that since simple_write_end() was the one extending
i_size it should also call mark_inode_dirty(). But it looks like all
users of simple_write_end() are memory-bound pseudo filesystems, who
could careless about mark_inode_dirty(). I might submit a
warning-comment patch to simple_write_end() in future.

CC: Stable <stable@kernel.org>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2010-01-05 09:14:32 +02:00
Boaz Harrosh 89be503021 exofs: fix pnfs_osd re-definitions in pre-pnfs trees
Some on disk exofs constants and types are defined in the pnfs_osd_xdr.h
file. Since we needed these types before the pnfs-objects code was
accepted to mainline we duplicated the minimal needed definitions into
an exofs local header. The definitions where conditionally included
depending on !CONFIG_PNFS defined. So if PNFS was present in the tree
definitions are taken from there and if not they are defined locally.

That was all good but, the CONFIG_PNFS is planed to be included upstream
before the pnfs-objects is also included. (The first pnfs batch might be
pnfs-files only)

So condition exofs local definitions on the absence of pnfs_osd_xdr.h
inclusion (__PNFS_OSD_XDR_H__ not defined). User code must make sure
that in future pnfs_osd_xdr.h will be included before fs/exofs/pnfs.h,
which happens to be so in current code.

Once pnfs-objects hits mainline, exofs's local header will be removed.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
2010-01-05 09:14:32 +02:00
Frederic Weisbecker 4f3be1b5a9 reiserfs: Relax lock on xattr removing
When we remove an xattr, we call lookup_and_delete_xattr()
that takes some private xattr inodes mutexes. But we hold
the reiserfs lock at this time, which leads to dependency
inversions.

We can safely call lookup_and_delete_xattr() without the
reiserfs lock, where xattr inodes lookups only need the
xattr inodes mutexes.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
2010-01-05 08:00:50 +01:00
Frederic Weisbecker 108d3943c0 reiserfs: Relax the lock before truncating pages
While truncating a file, reiserfs_setattr() calls inode_setattr()
that will truncate the mapping for the given inode, but for that
it needs the pages locks.

In order to release these, the owners need the reiserfs lock to
complete their jobs. But they can't, as we don't release it before
calling inode_setattr().

We need to do that to fix the following softlockups:

INFO: task flush-8:0:2149 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
flush-8:0     D f51af998     0  2149      2 0x00000000
 f51af9ac 00000092 00000002 f51af998 c2803304 00000000 c1894ad0 010f3000
 f51af9cc c1462604 c189ef80 f51af974 c1710304 f715b450 f715b5ec c2807c40
 00000000 0005bb00 c2803320 c102c55b c1710304 c2807c50 c2803304 00000246
Call Trace:
 [<c1462604>] ? schedule+0x434/0xb20
 [<c102c55b>] ? resched_task+0x4b/0x70
 [<c106fa22>] ? mark_held_locks+0x62/0x80
 [<c146414d>] ? mutex_lock_nested+0x1fd/0x350
 [<c14640b9>] mutex_lock_nested+0x169/0x350
 [<c1178cde>] ? reiserfs_write_lock+0x2e/0x40
 [<c1178cde>] reiserfs_write_lock+0x2e/0x40
 [<c11719a2>] do_journal_end+0xc2/0xe70
 [<c1172912>] journal_end+0xb2/0x120
 [<c11686b3>] ? pathrelse+0x33/0xb0
 [<c11729e4>] reiserfs_end_persistent_transaction+0x64/0x70
 [<c1153caa>] reiserfs_get_block+0x12ba/0x15f0
 [<c106fa22>] ? mark_held_locks+0x62/0x80
 [<c1154b24>] reiserfs_writepage+0xa74/0xe80
 [<c1465a27>] ? _raw_spin_unlock_irq+0x27/0x50
 [<c11f3d25>] ? radix_tree_gang_lookup_tag_slot+0x95/0xc0
 [<c10b5377>] ? find_get_pages_tag+0x127/0x1a0
 [<c106fa22>] ? mark_held_locks+0x62/0x80
 [<c106fcd4>] ? trace_hardirqs_on_caller+0x124/0x170
 [<c10bc1e0>] __writepage+0x10/0x40
 [<c10bc9ab>] write_cache_pages+0x16b/0x320
 [<c10bc1d0>] ? __writepage+0x0/0x40
 [<c10bcb88>] generic_writepages+0x28/0x40
 [<c10bcbd5>] do_writepages+0x35/0x40
 [<c11059f7>] writeback_single_inode+0xc7/0x330
 [<c11067b2>] writeback_inodes_wb+0x2c2/0x490
 [<c1106a86>] wb_writeback+0x106/0x1b0
 [<c1106cf6>] wb_do_writeback+0x106/0x1e0
 [<c1106c18>] ? wb_do_writeback+0x28/0x1e0
 [<c1106e0a>] bdi_writeback_task+0x3a/0xb0
 [<c10cbb13>] bdi_start_fn+0x63/0xc0
 [<c10cbab0>] ? bdi_start_fn+0x0/0xc0
 [<c105d1f4>] kthread+0x74/0x80
 [<c105d180>] ? kthread+0x0/0x80
 [<c100327a>] kernel_thread_helper+0x6/0x10
3 locks held by flush-8:0/2149:
 #0:  (&type->s_umount_key#30){+++++.}, at: [<c110676f>] writeback_inodes_wb+0x27f/0x490
 #1:  (&journal->j_mutex){+.+...}, at: [<c117199a>] do_journal_end+0xba/0xe70
 #2:  (&REISERFS_SB(s)->lock){+.+.+.}, at: [<c1178cde>] reiserfs_write_lock+0x2e/0x40
INFO: task fstest:3813 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
fstest        D 00000002     0  3813   3812 0x00000000
 f5103c94 00000082 f5103c40 00000002 f5ad5450 00000007 f5103c28 011f3000
 00000006 f5ad5450 c10bb005 00000480 c1710304 f5ad5450 f5ad55ec c2907c40
 00000001 f5ad5450 f5103c74 00000046 00000002 f5ad5450 00000007 f5103c6c
Call Trace:
 [<c10bb005>] ? free_hot_cold_page+0x1d5/0x280
 [<c1462d64>] io_schedule+0x74/0xc0
 [<c10b5a45>] sync_page+0x35/0x60
 [<c146325a>] __wait_on_bit_lock+0x4a/0x90
 [<c10b5a10>] ? sync_page+0x0/0x60
 [<c10b59e5>] __lock_page+0x85/0x90
 [<c105d660>] ? wake_bit_function+0x0/0x60
 [<c10bf654>] truncate_inode_pages_range+0x1e4/0x2d0
 [<c10bf75f>] truncate_inode_pages+0x1f/0x30
 [<c10bf7cf>] truncate_pagecache+0x5f/0xa0
 [<c10bf86a>] vmtruncate+0x5a/0x70
 [<c10fdb7d>] inode_setattr+0x5d/0x190
 [<c1150117>] reiserfs_setattr+0x1f7/0x2f0
 [<c1464569>] ? down_write+0x49/0x70
 [<c10fde01>] notify_change+0x151/0x330
 [<c10e6f3d>] do_truncate+0x6d/0xa0
 [<c10f4ce2>] do_filp_open+0x9a2/0xcf0
 [<c1465aec>] ? _raw_spin_unlock+0x2c/0x50
 [<c10fec50>] ? alloc_fd+0xe0/0x100
 [<c10e602d>] do_sys_open+0x6d/0x130
 [<c1002cfb>] ? sysenter_exit+0xf/0x16
 [<c10e615e>] sys_open+0x2e/0x40
 [<c1002ccc>] sysenter_do_call+0x12/0x32
3 locks held by fstest/3813:
 #0:  (&sb->s_type->i_mutex_key#4){+.+.+.}, at: [<c10e6f33>] do_truncate+0x63/0xa0
 #1:  (&sb->s_type->i_alloc_sem_key#3){+.+.+.}, at: [<c10fdf07>] notify_change+0x257/0x330
 #2:  (&REISERFS_SB(s)->lock){+.+.+.}, at: [<c1178c8e>] reiserfs_write_lock_once+0x2e/0x50

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
2010-01-05 08:00:29 +01:00
Frederic Weisbecker 5fe1533fda reiserfs: Fix recursive lock on lchown
On chown, reiserfs will call reiserfs_setattr() to change the owner
of the given inode, but it may also recursively call
reiserfs_setattr() to propagate the owner change to the private xattr
files for this inode.

Hence, the reiserfs lock may be acquired twice which is not wanted
as reiserfs_setattr() calls journal_begin() that is going to try to
relax the lock in order to safely acquire the journal mutex.

Using reiserfs_write_lock_once() from reiserfs_setattr() solves
the problem.

This fixes the following warning, that precedes a lockdep report.

WARNING: at fs/reiserfs/lock.c:95 reiserfs_lock_check_recursive+0x3f/0x50()
Hardware name: MS-7418
Unwanted recursive reiserfs lock!
Pid: 4189, comm: fsstress Not tainted 2.6.33-rc2-tip-atom+ #195
Call Trace:
 [<c1178bff>] ? reiserfs_lock_check_recursive+0x3f/0x50
 [<c1178bff>] ? reiserfs_lock_check_recursive+0x3f/0x50
 [<c103f7ac>] warn_slowpath_common+0x6c/0xc0
 [<c1178bff>] ? reiserfs_lock_check_recursive+0x3f/0x50
 [<c103f84b>] warn_slowpath_fmt+0x2b/0x30
 [<c1178bff>] reiserfs_lock_check_recursive+0x3f/0x50
 [<c1172ae3>] do_journal_begin_r+0x83/0x350
 [<c1172f2d>] journal_begin+0x7d/0x140
 [<c106509a>] ? in_group_p+0x2a/0x30
 [<c10fda71>] ? inode_change_ok+0x91/0x140
 [<c115007d>] reiserfs_setattr+0x15d/0x2e0
 [<c10f9bf3>] ? dput+0xe3/0x140
 [<c1465adc>] ? _raw_spin_unlock+0x2c/0x50
 [<c117831d>] chown_one_xattr+0xd/0x10
 [<c11780a3>] reiserfs_for_each_xattr+0x113/0x2c0
 [<c1178310>] ? chown_one_xattr+0x0/0x10
 [<c14641e9>] ? mutex_lock_nested+0x2a9/0x350
 [<c117826f>] reiserfs_chown_xattrs+0x1f/0x60
 [<c106509a>] ? in_group_p+0x2a/0x30
 [<c10fda71>] ? inode_change_ok+0x91/0x140
 [<c1150046>] reiserfs_setattr+0x126/0x2e0
 [<c1177c20>] ? reiserfs_getxattr+0x0/0x90
 [<c11b0d57>] ? cap_inode_need_killpriv+0x37/0x50
 [<c10fde01>] notify_change+0x151/0x330
 [<c10e659f>] chown_common+0x6f/0x90
 [<c10e67bd>] sys_lchown+0x6d/0x80
 [<c1002ccc>] sysenter_do_call+0x12/0x32
---[ end trace 7c2b77224c1442fc ]---

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Christian Kujau <lists@nerdbynature.de>
Cc: Alexander Beregalov <a.beregalov@gmail.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Ingo Molnar <mingo@elte.hu>
2010-01-05 07:59:38 +01:00
Rusty Russell f4b825bde9 Revert "x86: Side-step lguest problem by only building cmpxchg8b_emu for pre-Pentium"
This reverts commit ae1b22f6e4.

As Linus said in 982d007a6ee: "There was something really messy about
cmpxchg8b and clone CPU's, so if you enable it on other CPUs later, do it
carefully."

This breaks lguest for those configs, but we can fix that by emulating
if we have to.

Fixes: http://bugzilla.kernel.org/show_bug.cgi?id=14884
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
LKML-Reference: <201001051248.49700.rusty@rustcorp.com.au>
Cc: stable@kernel.org
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-04 19:35:49 -08:00
Youquan,Song b49bfd3290 PCIe AER: prevent AER injection if hardware masks error reporting
The Correcteable/Uncorrectable Error Mask Registers are used by PCIe AER
driver which will controls the reporting of individual errors to PCIe RC
via PCIe error messages.

If hardware masks special error reporting to RC, the aer_inject driver
should not inject aer error.

Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Youquan, Song <youquan.song@intel.com>
Acked-by: Ying, Huang <ying.huang@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-01-04 15:52:49 -08:00
Rafael J. Wysocki 1ae861e652 PCI/PM: Use per-device D3 delays
It turns out that some PCI devices require extra delays when changing
power state from D3 to D0 (and the other way around).  Although this
is against the PCI specification, we can handle it quite easily by
allowing drivers to define arbitrary D3 delays for devices known to
require extra time for switching power states.

Introduce additional field d3_delay in struct pci_dev and use it to
store the value of the device's D0->D3 delay, in miliseconds.  Make
the PCI PM core code use the per-device d3_delay unless
pci_pm_d3_delay is greater (in which case the latter is used).
[This also allows the driver to specify d3_delay shorter than the
 10 ms required by the PCI standard if the device is known to be able
 to handle that.]

Make the sky2 driver set d3_delay to 150 for devices handled by it.

Fixes http://bugzilla.kernel.org/show_bug.cgi?id=14730 which is a
listed regression from 2.6.30.

Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-01-04 15:41:47 -08:00
David S. Miller 8183e2b384 sparc64: Fix NMI programming when perf events are active.
If perf events are active, we should not reset the %pcr to
PCR_PIC_PRIV.  That perf events code does the management.

Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-04 15:37:04 -08:00
David S. Miller 5958eed76c Merge branch 'master' of /home/davem/src/GIT/linux-2.6/ 2010-01-04 15:33:22 -08:00
David S. Miller c7c17c2779 bbc_envctrl: Clean up properly if kthread_run() fails.
In bbc_envctrl_init() we have to unlink the fan and temp instances
from the lists because our caller is going to free up the 'bp' object
if we return an error.

We can't rely upon bbc_envctrl_cleanup() to do this work for us in
this case.

Reported-by: Patrick Finnegan <pat@computer-refuge.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-04 15:31:10 -08:00
David John 6be954d1f9 PCI: Check the node argument passed to cpumask_of_node
Commit e0cd516 "PCI: derive nearby CPUs from device's instead of bus'
NUMA information" causes an null pointer dereference when reading from
the sysfs attributes local_cpu* on Intel machines with no ACPI NUMA
proximity info, since dev->numa_node gets set to -1 for all PCI devices,
which then gets passed to cpumask_of_node.

Add a check to prevent this.

Signed-off-by: David John <davidjon@xenontk.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-01-04 15:10:56 -08:00
Yinghai Lu a557aae29c x86/pci: Intel ioh bus num reg accessing fix
It is above 0x100 (PCI-Express extended register space), so if mmconf
is not enable, we can't access it.

[ hpa: changed the bound from 0x200 to 0x120, which is the tight
  bound. ]

Reported-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1261525263-13763-3-git-send-email-yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-04 13:21:51 -08:00
Yinghai Lu 9dad0fd5a7 x86: Fix size for ex trampoline with 32bit
fix for error that is introduced by
| x86: Use find_e820() instead of hard coded trampoline address

it should end with PAGE_SIZE + PAGE_SIZE

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
LKML-Reference: <1261525263-13763-2-git-send-email-yinghai@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-04 13:20:11 -08:00
Linus Torvalds c5974b835a Merge branch 'limits_cleanup' of git://decibel.fi.muni.cz/~xslaby/linux
* 'limits_cleanup' of git://decibel.fi.muni.cz/~xslaby/linux:
  resource: add helpers for fetching rlimits
  resource: move kernel function inside __KERNEL__
  SECURITY: selinux, fix update_rlimit_cpu parameter
2010-01-04 12:36:54 -08:00