pandora-kernel.git
15 years agoMerge branch 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal...
Linus Torvalds [Fri, 9 Oct 2009 16:34:52 +0000 (09:34 -0700)]
Merge branch 'sh/for-2.6.32' of git://git./linux/kernel/git/lethal/sh-2.6

* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Don't allocate smaller sized mappings on every iteration
  sh: Try PMB mapping based on physical address, not mapping size
  sh: Plug PMB alloc memory leak
  sh: Sprinkle __uses_jump_to_uncached
  sh: enable sleep state LEDs on Ecovec24
  usb: r8a66597-udc unaligned fifo fix
  sh: mach-ecovec24: Document DS2 switch settings.
  sh: Build fix: export __movmem
  sh: Disable unaligned kernel access printks by default.
  sh: mach-ecovec24: modify 1st MTD area to read only
  sh: mach-ecovec24: Add TouchScreen support
  sh: magicpanelr2 and dreamcast can use the generic I/O base.
  sh: Don't enable interrupts in the page fault path
  sh: Set the default I/O port base to P2SEG.
  sh: Handle ioport_map() cases for >= P1SEG addresses.

15 years agoMerge branch 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt...
Linus Torvalds [Fri, 9 Oct 2009 16:19:23 +0000 (09:19 -0700)]
Merge branch 'drm-intel-next' of git://git./linux/kernel/git/anholt/drm-intel

* 'drm-intel-next' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel:
  drm/i915: Initialize HDMI outputs as HDMI connectors, not DVI.
  drm/i915: Multiply the refresh by 1000 in TV mode validatiion
  drm/i915: Enable irq to trace batch buffer completion.
  drm/i915: batch submit seqno off-by-one.
  drm/i915: Record device minor rather than pointer in TRACE_EVENT
  drm/i915: Don't call intel_update_fbc from intel_crtc_cursor_set

15 years agoBtrfs: fix file clone ioctl for bookend extents
Chris Mason [Fri, 9 Oct 2009 15:29:53 +0000 (11:29 -0400)]
Btrfs: fix file clone ioctl for bookend extents

The file clone ioctl was incorrectly taking the offset into the
extent on disk into account when calculating the length of the
cloned extent.

The length never changes based on the offset into the physical extent.

Test case:

fallocate -l 1g image
mke2fs image
bcp image image2
e2fsck -f image2

(errors on image2)

The math bug ends up wrapping the length of the extent, and things
go wrong from there.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: fix uninit compiler warning in cow_file_range_nocow
Chris Mason [Fri, 9 Oct 2009 13:57:45 +0000 (09:57 -0400)]
Btrfs: fix uninit compiler warning in cow_file_range_nocow

The extent_type variable was exposed uninit via a goto.  It should be
impossible to trigger because it is protected by a check on another
variable, but this makes sure.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: constify dentry_operations
Alexey Dobriyan [Fri, 9 Oct 2009 13:54:36 +0000 (09:54 -0400)]
Btrfs: constify dentry_operations

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: optimize back reference update during btrfs_drop_snapshot
Yan, Zheng [Fri, 9 Oct 2009 13:25:16 +0000 (09:25 -0400)]
Btrfs: optimize back reference update during btrfs_drop_snapshot

This patch reading level 0 tree blocks that already use full backrefs.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: remove negative dentry when deleting subvolumne
Yan, Zheng [Fri, 9 Oct 2009 13:25:16 +0000 (09:25 -0400)]
Btrfs: remove negative dentry when deleting subvolumne

The use of btrfs_dentry_delete is removing dentries from the
dcache when deleting subvolumne. btrfs_dentry_delete ignores
negative dentries. This is incorrect since if we don't remove
the negative dentry, its parent dentry can't be removed.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoahci: Add ifdef wrapper to ahci_gtf_filter_workaround
Markus Trippelsdorf [Fri, 9 Oct 2009 03:41:47 +0000 (05:41 +0200)]
ahci: Add ifdef wrapper to ahci_gtf_filter_workaround

Commit f80ae7e45a0e03da188494c6e947a5c8b0cdfb4a
ahci: filter FPDMA non-zero offset enable for Aspire 3810T
breaks the current git build for configurations that don't define
CONFIG_ATA_ACPI.
This adds an ifdef wrapper to ahci_gtf_filter_workaround.

Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
15 years agoInput: i8042 - print debug data when testing AUX IRQ delivery
Dmitry Torokhov [Fri, 9 Oct 2009 03:58:13 +0000 (20:58 -0700)]
Input: i8042 - print debug data when testing AUX IRQ delivery

Sometimes it is not clear why IRQ delivery test failed so let's
add some debug printks so we know the exact reason.

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
15 years agosh: Don't allocate smaller sized mappings on every iteration
Matt Fleming [Tue, 6 Oct 2009 21:22:34 +0000 (21:22 +0000)]
sh: Don't allocate smaller sized mappings on every iteration

Currently, we've got the less than ideal situation where if we need to
allocate a 256MB mapping we'll allocate four entries like so,

 entry 1: 128MB
 entry 2:  64MB
 entry 3:  16MB
 entry 4:  16MB

This is because as we execute the loop in pmb_remap() we will
progressively try mapping the remaining address space with smaller and
smaller sizes. This isn't good because the size we use on one iteration
may be the perfect size to use on the next iteration, for instance when
the initial size is divisible by one of the PMB mapping sizes.

With this patch, we now only need two entries in the PMB to map 256MB of
address space,

  entry 1: 128MB
  entry 2: 128MB

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Try PMB mapping based on physical address, not mapping size
Matt Fleming [Tue, 6 Oct 2009 21:22:27 +0000 (21:22 +0000)]
sh: Try PMB mapping based on physical address, not mapping size

We should favour PMB mappings when the physical address cannot be
reached with 29-bits.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Plug PMB alloc memory leak
Matt Fleming [Tue, 6 Oct 2009 21:22:22 +0000 (21:22 +0000)]
sh: Plug PMB alloc memory leak

If we fail to allocate a PMB entry in pmb_remap() we must remember to
clear and free any PMB entries that we may have previously allocated,
e.g. if we were allocating a multiple entry mapping.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: Sprinkle __uses_jump_to_uncached
Matt Fleming [Tue, 6 Oct 2009 21:22:21 +0000 (21:22 +0000)]
sh: Sprinkle __uses_jump_to_uncached

Fix some callers of jump_to_uncached() and back_to_cached() that were
not annotated with __uses_jump_to_uncached.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agosh: enable sleep state LEDs on Ecovec24
Magnus Damm [Wed, 7 Oct 2009 09:00:06 +0000 (09:00 +0000)]
sh: enable sleep state LEDs on Ecovec24

Extend the ecovec24 board code to enable Power
Management LEDs showing the current sh7724 sleep state.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
15 years agoTPM: fix pcrread
Rajiv Andrade [Wed, 30 Sep 2009 15:26:55 +0000 (12:26 -0300)]
TPM: fix pcrread

The previously sent patch:

http://marc.info/?l=tpmdd-devel&m=125208945007834&w=2

Had its first hunk cropped when merged, submitting only this first hunk
again.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Cc: Debora Velarde <debora@linux.vnet.ibm.com>
Cc: Marcel Selhorst <m.selhorst@sirrix.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Rajiv Andrade <srajiv@linux.vnet.ibm.com>
Acked-by: Mimi Zohar <zohar@us.ibm.com>
Tested-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
15 years agoMerge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
Linus Torvalds [Thu, 8 Oct 2009 21:15:19 +0000 (14:15 -0700)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6

* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
  NFSv4: Kill nfs4_renewd_prepare_shutdown()
  NFSv4: Fix the referral mount code
  nfs: Avoid overrun when copying client IP address string
  NFS: Fix port initialisation in nfs_remount()
  NFS: Fix port and mountport display in /proc/self/mountinfo
  NFS: Fix a default mount regression...

15 years agoBtrfs: optimize fsync for the single writer case
Josef Bacik [Thu, 8 Oct 2009 19:30:04 +0000 (15:30 -0400)]
Btrfs: optimize fsync for the single writer case

This patch optimizes the tree logging stuff so it doesn't always wait 1 jiffie
for new people to join the logging transaction if there is only ever 1 writer.
This helps a little bit with latency where we have something like RPM where it
will fdatasync every file it writes, and so waiting the 1 jiffie for every
fdatasync really starts to add up.

Signed-off-by: Josef Bacik <jbacik@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Thu, 8 Oct 2009 19:22:45 +0000 (12:22 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  pata_atp867x: add Power Management support
  pata_atp867x: PIO support fixes
  pata_atp867x: clarifications in timings calculations and cable detection
  pata_atp867x: fix it to not claim MWDMA support
  libata: fix incorrect link online check during probe
  ahci: filter FPDMA non-zero offset enable for Aspire 3810T
  libata: make gtf_filter per-dev
  libata: implement more acpi filtering options
  libata: cosmetic updates
  ahci: display all AHCI 1.3 HBA capability flags (v2)
  pata_ali: trivial fix of a very frequent spelling mistake
  ahci: disable 64bit DMA by default on SB600s

15 years agoBtrfs: async delalloc flushing under space pressure
Josef Bacik [Thu, 8 Oct 2009 00:44:34 +0000 (20:44 -0400)]
Btrfs: async delalloc flushing under space pressure

This patch moves the delalloc flushing that occurs when we are under space
pressure off to a async thread pool.  This helps since we only free up
metadata space when we actually insert the extent item, which means it takes
quite a while for space to be free'ed up if we wait on all ordered extents.
However, if space is freed up due to inline extents being inserted, we can
wake people who are waiting up early, and they can finish their work.

Signed-off-by: Josef Bacik <jbacik@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: release delalloc reservations on extent item insertion
Josef Bacik [Thu, 8 Oct 2009 17:34:05 +0000 (13:34 -0400)]
Btrfs: release delalloc reservations on extent item insertion

This patch fixes an issue with the delalloc metadata space reservation
code.  The problem is we used to free the reservation as soon as we
allocated the delalloc region.  The problem with this is if we are not
inserting an inline extent, we don't actually insert the extent item until
after the ordered extent is written out.  This patch does 3 things,

1) It moves the reservation clearing stuff into the ordered code, so when
we remove the ordered extent we remove the reservation.
2) It adds a EXTENT_DO_ACCOUNTING flag that gets passed when we clear
delalloc bits in the cases where we want to clear the metadata reservation
when we clear the delalloc extent, in the case that we do an inline extent
or we invalidate the page.
3) It adds another waitqueue to the space info so that when we start a fs
wide delalloc flush, anybody else who also hits that area will simply wait
for the flush to finish and then try to make their allocation.

This has been tested thoroughly to make sure we did not regress on
performance.

Signed-off-by: Josef Bacik <jbacik@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoMerge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 8 Oct 2009 19:16:35 +0000 (12:16 -0700)]
Merge branch 'core-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  futex: fix requeue_pi key imbalance
  futex: Fix typo in FUTEX_WAIT/WAKE_BITSET_PRIVATE definitions
  rcu: Place root rcu_node structure in separate lockdep class
  rcu: Make hot-unplugged CPU relinquish its own RCU callbacks
  rcu: Move rcu_barrier() to rcutree
  futex: Move exit_pi_state() call to release_mm()
  futex: Nullify robust lists after cleanup
  futex: Fix locking imbalance
  panic: Fix panic message visibility by calling bust_spinlocks(0) before dying
  rcu: Replace the rcu_barrier enum with pointer to call_rcu*() function
  rcu: Clean up code based on review feedback from Josh Triplett, part 4
  rcu: Clean up code based on review feedback from Josh Triplett, part 3
  rcu: Fix rcu_lock_map build failure on CONFIG_PROVE_LOCKING=y
  rcu: Clean up code to address Ingo's checkpatch feedback
  rcu: Clean up code based on review feedback from Josh Triplett, part 2
  rcu: Clean up code based on review feedback from Josh Triplett

15 years agoBtrfs: delay clearing EXTENT_DELALLOC for compressed extents
Chris Mason [Thu, 8 Oct 2009 16:30:20 +0000 (12:30 -0400)]
Btrfs: delay clearing EXTENT_DELALLOC for compressed extents

When compression is on, the cow_file_range code is farmed off to
worker threads.  This allows us to do significant CPU work in parallel
on SMP machines.

But it is a delicate balance around when we clear flags and how.  In
the past we cleared the delalloc flag immediately, which was safe
because the pages stayed locked.

But this is causing problems with the newest ENOSPC code, and with the
recent extent state cleanups we can now clear the delalloc bit at the
same time the uncompressed code does.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoBtrfs: cleanup extent_clear_unlock_delalloc flags
Chris Mason [Thu, 8 Oct 2009 15:27:10 +0000 (11:27 -0400)]
Btrfs: cleanup extent_clear_unlock_delalloc flags

extent_clear_unlock_delalloc has a growing set of ugly parameters
that is very difficult to read and maintain.

This switches to a flag field and well named flag defines.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
15 years agoMerge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 8 Oct 2009 19:07:24 +0000 (12:07 -0700)]
Merge branch 'sched-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  sched: Set correct normal_prio and prio values in sched_fork()

15 years agoMerge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Thu, 8 Oct 2009 19:06:36 +0000 (12:06 -0700)]
Merge branch 'x86-fixes-for-linus' of git://git./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, pci: Correct spelling in a comment
  x86: Simplify bound checks in the MTRR code
  x86: EDAC: carve out AMD MCE decoding logic
  initcalls: Add early_initcall() for modules
  x86: EDAC: MCE: Fix MCE decoding callback logic

15 years agoMerge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 8 Oct 2009 19:06:09 +0000 (12:06 -0700)]
Merge branch 'tracing-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  tracing: user local buffer variable for trace branch tracer
  tracing: fix warning on kernel/trace/trace_branch.c andtrace_hw_branches.c
  ftrace: check for failure for all conversions
  tracing: correct module boundaries for ftrace_release
  tracing: fix transposed numbers of lock_depth and preempt_count
  trace: Fix missing assignment in trace_ctxwake_*
  tracing: Use free_percpu instead of kfree
  tracing: Check total refcount before releasing bufs in profile_enable failure

15 years agoMerge branch 'sparc-perf-events-fixes-for-linus' of git://git.kernel.org/pub/scm...
Linus Torvalds [Thu, 8 Oct 2009 19:05:50 +0000 (12:05 -0700)]
Merge branch 'sparc-perf-events-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'sparc-perf-events-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  mm, perf_event: Make vmalloc_user() align base kernel virtual address to SHMLBA
  perf_event: Provide vmalloc() based mmap() backing

15 years agoMerge branch 'perf-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 8 Oct 2009 19:05:00 +0000 (12:05 -0700)]
Merge branch 'perf-fixes-for-linus-2' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'perf-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  perf_events: Make ABI definitions available to userspace
  perf tools: elf_sym__is_function() should accept "zero" sized functions
  tracing/syscalls: Use long for syscall ret format and field definitions
  perf trace: Update eval_flag() flags array to match interrupt.h
  perf trace: Remove unused code in builtin-trace.c
  perf: Propagate term signal to child

15 years agoMerge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 8 Oct 2009 19:04:04 +0000 (12:04 -0700)]
Merge branch 'timers-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, timers: Check for pending timers after (device) interrupts
  NOHZ: update idle state also when NOHZ is inactive

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Thu, 8 Oct 2009 19:03:21 +0000 (12:03 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: ice1724: increase SPDIF and independent stereo buffer sizes
  ALSA: opl3: circular locking in the snd_opl3_note_on() and snd_opl3_note_off()
  ALSA: ICE1712/24 - Change the Multi Track Peak control (level meters) from MIXER to PCM type
  ALSA: hda - Fix yet another auto-mic bug in ALC268
  ASoC: WM8350 capture PGA mutes are inverted
  ASoC: Remove absent SYNC and TDM DAI format options from i.MX SSI
  sound: via82xx: move DXS volume controls to PCM interface
  ALSA: hda - Don't pick up invalid HP pins in alc_subsystem_id()
  ALSA: hda - Add a workaround for ASUS A7K
  ALSA: hda - Fix invalid initializations for ALC861 auto mode
  ASoC: wm8940: Fix check on error code form snd_soc_codec_set_cache_io
  ASoC: Fix SND_SOC_DAPM_LINE handling

15 years agoMerge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Thu, 8 Oct 2009 19:02:06 +0000 (12:02 -0700)]
Merge branch 'drm-linus' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (24 commits)
  drm/radeon/kms: fix vline register for second head.
  drm/r600: avoid assigning vb twice in blit code
  drm/radeon: use list_for_each_entry instead of list_for_each
  drm/radeon/kms: Fix AGP support for R600/RV770 family (v2)
  drm/radeon/kms: Fallback to non AGP when acceleration fails to initialize (v2)
  drm/radeon/kms: Fix RS600/RV515/R520/RS690 IRQ
  drm/radeon: Fix setting of bits
  drm/ttm: fix refcounting in ttm global code.
  drm/fb: add more correct 8/16/24/32 bpp fb support.
  drm/fb: add setcmap and fix 8-bit support.
  drm/radeon/kms: respect single crtc cards, only create one crtc. (v2)
  drm: Delete the DRM_DEBUG_KMS in drm_mode_cursor_ioctl
  drm/radeon/kms: add support for "Surround View"
  drm/radeon/kms: Fix irq handling on AVIVO hw
  drm/radeon/kms: R600/RV770 remove dead code and print message for wrong BIOS
  drm/radeon/kms: Fix R600/RV770 disable acceleration path
  drm/radeon/kms: Fix R600/RV770 startup path & reset
  drm/radeon/kms: Fix R600 write back buffer
  drm/radeon/kms: Remove old init path as no hw use it anymore
  drm/radeon/kms: Convert RS600 to new init path
  ...

15 years agoMerge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 8 Oct 2009 19:01:01 +0000 (12:01 -0700)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
  omapfb: Blizzard: constify register address tables
  omapfb: Blizzard: fix pointer to be const
  omapfb: Condition mutex acquisition
  omap: iovmm: Add missing mutex_unlock
  omap: iovmm: Fix incorrect spelling
  omap: SRAM: flush the right address after memcpy in omap_sram_push
  omap: Lock DPLL5 at boot
  omap: Fix incorrect 730 vs 850 detection
  OMAP3: PM: introduce a new powerdomain walk helper
  OMAP3: PM: Enable GPIO module-level wakeups
  OMAP3: PM: USBHOST: clear wakeup events on both hosts
  OMAP3: PM: PRCM interrupt: only handle selected PRCM interrupts
  OMAP3: PM: PRCM interrupt: check MPUGRPSEL register
  OMAP3: PM: Prevent hang in prcm_interrupt_handler

15 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp
Linus Torvalds [Thu, 8 Oct 2009 19:00:39 +0000 (12:00 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/bp/bp

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp:
  amd64_edac: beef up DRAM error injection
  amd64_edac: fix DRAM base and limit extraction
  amd64_edac: fix chip select handling
  amd64_edac: simple fix to allow reporting of CECC errors
  amd64_edac: fix K8 intlv_sel check
  amd64_edac: fix interleave enable tests
  amd64_edac: fix DRAM base and limit address extraction
  amd64_edac: fix driver instance lookup table allocation

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
Linus Torvalds [Thu, 8 Oct 2009 18:59:30 +0000 (11:59 -0700)]
Merge git://git./linux/kernel/git/davem/net-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (40 commits)
  ethoc: limit the number of buffers to 128
  ethoc: use system memory as buffer
  ethoc: align received packet to make IP header at word boundary
  ethoc: fix buffer address mapping
  ethoc: fix typo to compute number of tx descriptors
  au1000_eth: Duplicate test of RX_OVERLEN bit in update_rx_stats()
  netxen: Fix Unlikely(x) > y
  pasemi_mac: ethtool get settings fix
  add maintainer for network drop monitor kernel service
  tg3: Fix phylib locking strategy
  rndis_host: support ETHTOOL_GPERMADDR
  ipv4: arp_notify address list bug
  gigaset: add kerneldoc comments
  gigaset: correct debugging output selection
  gigaset: improve error recovery
  gigaset: fix device ERROR response handling
  gigaset: announce if built with debugging
  gigaset: handle isoc frame errors more gracefully
  gigaset: linearize skb
  gigaset: fix reject/hangup handling
  ...

15 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
Linus Torvalds [Thu, 8 Oct 2009 18:59:06 +0000 (11:59 -0700)]
Merge git://git./linux/kernel/git/davem/ide-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  Revert "Revert "ide: try to use PIO Mode 0 during probe if possible""
  sis5513: fix PIO setup for ATAPI devices

15 years agoMerge branch 'master' into for-linus
Alex Elder [Thu, 8 Oct 2009 18:53:44 +0000 (13:53 -0500)]
Merge branch 'master' into for-linus

15 years agoxfs: stop calling filemap_fdatawait inside ->fsync
Christoph Hellwig [Sat, 26 Sep 2009 19:55:04 +0000 (19:55 +0000)]
xfs: stop calling filemap_fdatawait inside ->fsync

Now that the VFS actually waits for the data I/O to complete before
calling into ->fsync we can stop doing it ourselves.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
15 years agofix readahead calculations in xfs_dir2_leaf_getdents()
Eric Sandeen [Fri, 25 Sep 2009 19:42:26 +0000 (19:42 +0000)]
fix readahead calculations in xfs_dir2_leaf_getdents()

This is for bug #850,
http://oss.sgi.com/bugzilla/show_bug.cgi?id=850
XFS file system segfaults , repeatedly and 100% reproducable in 2.6.30 , 2.6.31

The above only showed up on a CONFIG_XFS_DEBUG=y kernel, because
xfs_bmapi() ASSERTs that it has been asked for at least one map,

and it was getting 0.

The root cause is that our guesstimated "bufsize" from xfs_file_readdir
was fairly small, and the

bufsize -= length;

in the loop was going negative - except bufsize is a size_t, so it
was wrapping to a very large number.

Then when we did
ra_want = howmany(bufsize + mp->m_dirblksize,
  mp->m_sb.sb_blocksize) - 1;

with that very large number, the (int) ra_want was coming out
negative, and a subsequent compare:

if (1 + ra_want > map_blocks ...

was coming out -true- (negative int compare w/ uint) and we went
back to xfs_bmapi() for more, even though we did not need more,
and asked for 0 maps, and hit the ASSERT.

We have kind of a type mess here, but just keeping bufsize from
going negative is probably sufficient to avoid the problem.

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
15 years agoxfs: make sure xfs_sync_fsdata covers the log
Dave Chinner [Tue, 6 Oct 2009 20:29:30 +0000 (20:29 +0000)]
xfs: make sure xfs_sync_fsdata covers the log

We want to always cover the log after writing out the superblock, and
in case of a synchronous writeout make sure we actually wait for the
log to be covered.  That way a filesystem that has been sync()ed can
be considered clean by log recovery.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
15 years agoxfs: mark inodes dirty before issuing I/O
Dave Chinner [Tue, 6 Oct 2009 20:29:29 +0000 (20:29 +0000)]
xfs: mark inodes dirty before issuing I/O

To make sure they get properly waited on in sync when I/O is in flight and
we latter need to update the inode size.  Requires a new helper to check if an
ioend structure is beyond the current EOF.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
15 years agoxfs: cleanup ->sync_fs
Christoph Hellwig [Tue, 6 Oct 2009 20:29:28 +0000 (20:29 +0000)]
xfs: cleanup ->sync_fs

Sort out ->sync_fs to not perform a superblock writeback for the wait = 0 case
as that is just an optional first pass and the superblock will be written back
properly in the next call with wait = 1.  Instead perform an opportunistic
quota writeback to have less work later.  Also remove the freeze special case
as we do a proper wait = 1 call in the freeze code anyway.

Also rename the function to xfs_fs_sync_fs to match the normal naming
convention, update comments and avoid calling into the laptop_mode logic on
an error.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
15 years agoxfs: fix xfs_quiesce_data
Dave Chinner [Tue, 6 Oct 2009 20:29:27 +0000 (20:29 +0000)]
xfs: fix xfs_quiesce_data

We need to do a synchronous xfs_sync_fsdata to make sure the superblock
actually is on disk when we return.

Also remove SYNC_BDFLUSH flag to xfs_sync_inodes because that particular
flag is never checked.

Move xfs_filestream_flush call later to only release inodes after they
have been written out.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
15 years agoxfs: implement ->dirty_inode to fix timestamp handling
Christoph Hellwig [Tue, 6 Oct 2009 20:29:26 +0000 (20:29 +0000)]
xfs: implement ->dirty_inode to fix timestamp handling

This is picking up on Felix's repost of Dave's patch to implement a
.dirty_inode method.  We really need this notification because
the VFS keeps writing directly into the inode structure instead
of going through methods to update this state.  In addition to
the long-known atime issue we now also have a caller in VM code
that updates c/mtime that way for shared writeable mmaps.  And
I found another one that no one has noticed in practice in the FIFO
code.

So implement ->dirty_inode to set i_update_core whenever the
inode gets externally dirtied, and switch the c/mtime handling to
the same scheme we already use for atime (always picking up
the value from the Linux inode).

Note that this patch also removes the xfs_synchronize_atime call
in xfs_reclaim it was superflous as we already synchronize the time
when writing the inode via the log (xfs_inode_item_format) or the
normal buffers (xfs_iflush_int).

In addition also remove the I_CLEAR check before copying the Linux
timestamps - now that we always have the Linux inode available
we can always use the timestamps in it.

Also switch to just using file_update_time for regular reads/writes -
that will get us all optimization done to it for free and make
sure we notice early when it breaks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Reviewed-by: Alex Elder <aelder@sgi.com>
Signed-off-by: Alex Elder <aelder@sgi.com>
15 years agoima: ecryptfs fix imbalance message
Mimi Zohar [Mon, 5 Oct 2009 18:25:44 +0000 (14:25 -0400)]
ima: ecryptfs fix imbalance message

The unencrypted files are being measured.  Update the counters to get
rid of the ecryptfs imbalance message. (http://bugzilla.redhat.com/519737)

Reported-by: Sachin Garg
Cc: Eric Paris <eparis@redhat.com>
Cc: Dustin Kirkland <kirkland@canonical.com>
Cc: James Morris <jmorris@namei.org>
Cc: David Safford <safford@watson.ibm.com>
Cc: stable@kernel.org
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
15 years agoeCryptfs: Remove Kconfig NET dependency and select MD5
Tyler Hicks [Tue, 29 Sep 2009 07:33:59 +0000 (02:33 -0500)]
eCryptfs: Remove Kconfig NET dependency and select MD5

eCryptfs no longer uses a netlink interface to communicate with
ecryptfsd, so NET is not a valid dependency anymore.

MD5 is required and must be built for eCryptfs to be of any use.

Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
15 years agoecryptfs: depends on CRYPTO
Randy Dunlap [Mon, 28 Sep 2009 20:34:20 +0000 (13:34 -0700)]
ecryptfs: depends on CRYPTO

ecryptfs uses crypto APIs so it should depend on CRYPTO.
Otherwise many build errors occur. [63 lines not pasted]

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: ecryptfs-devel@lists.launchpad.net
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
15 years agoNFSv4: Kill nfs4_renewd_prepare_shutdown()
Trond Myklebust [Thu, 8 Oct 2009 15:50:55 +0000 (11:50 -0400)]
NFSv4: Kill nfs4_renewd_prepare_shutdown()

The NFSv4 renew daemon is shared between all active super blocks that refer
to a particular NFS server, so it is wrong to be shutting it down in
nfs4_kill_super every time a super block is destroyed.

This patch therefore kills nfs4_renewd_prepare_shutdown altogether, and
leaves it up to nfs4_shutdown_client() to also shut down the renew daemon
by means of the existing call to nfs4_kill_renewd().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
15 years agox86, timers: Check for pending timers after (device) interrupts
Arjan van de Ven [Thu, 8 Oct 2009 13:40:41 +0000 (06:40 -0700)]
x86, timers: Check for pending timers after (device) interrupts

Now that range timers and deferred timers are common, I found a
problem with these using the "perf timechart" tool. Frans Pop also
reported high scheduler latencies via LatencyTop, when using
iwlagn.

It turns out that on x86, these two 'opportunistic' timers only get
checked when another "real" timer happens. These opportunistic
timers have the objective to save power by hitchhiking on other
wakeups, as to avoid CPU wakeups by themselves as much as possible.

The change in this patch runs this check not only at timer
interrupts, but at all (device) interrupts. The effect is that:

 1) the deferred timers/range timers get delayed less

 2) the range timers cause less wakeups by themselves because
    the percentage of hitchhiking on existing wakeup events goes up.

I've verified the working of the patch using "perf timechart", the
original exposed bug is gone with this patch. Frans also reported
success - the latencies are now down in the expected ~10 msec
range.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Tested-by: Frans Pop <elendil@planet.nl>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
LKML-Reference: <20091008064041.67219b13@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agomm, perf_event: Make vmalloc_user() align base kernel virtual address to SHMLBA
David Miller [Mon, 21 Sep 2009 19:22:34 +0000 (12:22 -0700)]
mm, perf_event: Make vmalloc_user() align base kernel virtual address to SHMLBA

When a vmalloc'd area is mmap'd into userspace, some kind of
co-ordination is necessary for this to work on platforms with cpu
D-caches which can have aliases.

Otherwise kernel side writes won't be seen properly in userspace
and vice versa.

If the kernel side mapping and the user side one have the same
alignment, modulo SHMLBA, this can work as long as VM_SHARED is
shared of VMA and for all current users this is true.  VM_SHARED
will force SHMLBA alignment of the user side mmap on platforms with
D-cache aliasing matters.

The bulk of this patch is just making it so that a specific
alignment can be passed down into __get_vm_area_node().  All
existing callers pass in '1' which preserves existing behavior.
vmalloc_user() gives SHMLBA for the alignment.

As a side effect this should get the video media drivers and other
vmalloc_user() users into more working shape on such systems.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <200909211922.n8LJMYjw029425@imap1.linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
15 years agoMerge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6
Linus Torvalds [Thu, 8 Oct 2009 14:40:19 +0000 (07:40 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/kyle/parisc-2.6

* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/kyle/parisc-2.6:
  agp: parisc-agp.c - use correct page_mask function
  parisc: Fix linker script breakage.
  parisc: convert to asm-generic/hardirq.h
  parisc: Make THREAD_SIZE available to assembly files and linker scripts.
  parisc: correct use of SHF_ALLOC
  parisc: rename parisc's vmalloc_start to parisc_vmalloc_start
  parisc: add me to Maintainers
  parisc: includecheck fix: signal.c
  parisc: HAVE_ARCH_TRACEHOOK
  parisc: add skeleton syscall.h
  parisc: stop using task->ptrace for {single,block}step flags
  parisc: split syscall_trace into two halves
  parisc: add missing TI_TASK macro in syscall.S
  parisc: tracehook_signal_handler
  parisc: tracehook_report_syscall

15 years agolis3lv02d_spi: module unload didn't remove sysfs entry
Samu Onkalo [Wed, 7 Oct 2009 23:32:35 +0000 (16:32 -0700)]
lis3lv02d_spi: module unload didn't remove sysfs entry

In module unload, lis3lv02d core driver sysfs clean up was not called.

Signed-off-by: Samu Onkalo <samu.p.onkalo@nokia.com>
Acked-by: Daniel Mack <daniel@caiaq.de>
Cc: Éric Piel <eric.piel@tremplin-utc.net>
Cc: "Trisal, Kalhan" <kalhan.trisal@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agommc: sdio: don't require CISTPL_VERS_1 to contain 4 strings
David Vrabel [Wed, 7 Oct 2009 23:32:33 +0000 (16:32 -0700)]
mmc: sdio: don't require CISTPL_VERS_1 to contain 4 strings

The PC Card 8.0 specification (vol.  4, section 3.2.10) says the
TPLLV1_INFO field of the CISTPL_VERS_1 tuple must contain 4 strings.  Some
cards don't have all 4 so just parse as many as we can.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: David Vrabel <david.vrabel@csr.com>
Tested-by: Jonathan Cameron <jic23@cam.ac.uk>
Tested-by: Bing Zhao <bzhao@marvell.com>
Cc: Roel Kluin <roel.kluin@gmail.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopage-types: add hwpoison/unpoison feature
Wu Fengguang [Wed, 7 Oct 2009 23:32:32 +0000 (16:32 -0700)]
page-types: add hwpoison/unpoison feature

For hwpoison stress testing.  The debugfs mount point is assumed to be
/debug/.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopage-types: introduce kpageflags_flags()
Wu Fengguang [Wed, 7 Oct 2009 23:32:31 +0000 (16:32 -0700)]
page-types: introduce kpageflags_flags()

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopage-types: make voffset local variables
Wu Fengguang [Wed, 7 Oct 2009 23:32:30 +0000 (16:32 -0700)]
page-types: make voffset local variables

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopage-types: make standalone pagemap/kpageflags read routines
Wu Fengguang [Wed, 7 Oct 2009 23:32:30 +0000 (16:32 -0700)]
page-types: make standalone pagemap/kpageflags read routines

Refactor the code to be more modular and easier to reuse.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopage-types: introduce checked_open()
Wu Fengguang [Wed, 7 Oct 2009 23:32:29 +0000 (16:32 -0700)]
page-types: introduce checked_open()

This helps merge duplicate code (now and future) and outstand the main
logic.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopage-types: add GPL note
Wu Fengguang [Wed, 7 Oct 2009 23:32:28 +0000 (16:32 -0700)]
page-types: add GPL note

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopagemap: document KPF_KSM and show it in page-types
Wu Fengguang [Wed, 7 Oct 2009 23:32:28 +0000 (16:32 -0700)]
pagemap: document KPF_KSM and show it in page-types

It indicates to the system admin that processes mapping such pages may be
eating less physical memory than the reported numbers by legacy tools.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Izik Eidus <ieidus@redhat.com>
Acked-by: Chris Wright <chrisw@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agopagemap: export KPF_HWPOISON
Wu Fengguang [Wed, 7 Oct 2009 23:32:27 +0000 (16:32 -0700)]
pagemap: export KPF_HWPOISON

This flag indicates a hardware detected memory corruption on the page.
Any future access of the page data may bring down the machine.

Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agocgroups: update documentation of cgroups tasks and procs files
Paul Menage [Wed, 7 Oct 2009 23:32:26 +0000 (16:32 -0700)]
cgroups: update documentation of cgroups tasks and procs files

Update documentation of cgroups tasks and procs files

Document the cgroup.procs file.

Clarify the semantics of the cgroup.procs and tasks files.  Although the
current cgroup.procs interface returns a sorted and uniqified list of
pids, potential future performance enhancements could result in those
properties being removed - explicitly document this aspect of the API.

There are no existing users of cgroup.procs, so compatibility isn't an
issue.  There are users of the "tasks" file, but none that would appear to
break in the event of the sorted property being broken.  The standard
"libcpuset" explicitly sorts the results of reading from the tasks file,
and "libcg" and other users don't appear to care about ordering.

Signed-off-by: Paul Menage <menage@google.com>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agovideo: includecheck fix: da8xx-fb.c
Jaswinder Singh Rajput [Wed, 7 Oct 2009 23:32:25 +0000 (16:32 -0700)]
video: includecheck fix: da8xx-fb.c

fix the following 'make includecheck' warning:

  drivers/video/da8xx-fb.c: linux/device.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agovideo: includecheck fix: msm, mddi.c
Jaswinder Singh Rajput [Wed, 7 Oct 2009 23:32:24 +0000 (16:32 -0700)]
video: includecheck fix: msm, mddi.c

fix the following 'make includecheck' warning:

  drivers/video/msm/mddi.c: linux/delay.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agofs: includecheck fix: proc, kcore.c
Jaswinder Singh Rajput [Wed, 7 Oct 2009 23:32:24 +0000 (16:32 -0700)]
fs: includecheck fix: proc, kcore.c

fix the following 'make includecheck' warning:

  fs/proc/kcore.c: linux/mm.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agomm: includecheck fix: vmalloc.c
Jaswinder Singh Rajput [Wed, 7 Oct 2009 23:32:23 +0000 (16:32 -0700)]
mm: includecheck fix: vmalloc.c

fix the following 'make includecheck' warning:

  mm/vmalloc.c: linux/highmem.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoksm: more on default values
Hugh Dickins [Wed, 7 Oct 2009 23:32:22 +0000 (16:32 -0700)]
ksm: more on default values

Adjust the max_kernel_pages default to a quarter of totalram_pages,
instead of nr_free_buffer_pages() / 4: the KSM pages themselves come from
highmem, and even on a 16GB PAE machine, 4GB of KSM pages would only be
pinning 32MB of lowmem with their rmap_items, so no need for the more
obscure calculation (nor for its own special init function).

There is no way for the user to switch KSM on if CONFIG_SYSFS is not
enabled, so in that case default run to KSM_RUN_MERGE.

Update KSM Documentation and Kconfig to reflect the new defaults.

Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: Izik Eidus <ieidus@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
15 years agoMerge branch 'fix/misc' into for-linus
Takashi Iwai [Thu, 8 Oct 2009 11:00:02 +0000 (13:00 +0200)]
Merge branch 'fix/misc' into for-linus

15 years agoMerge branch 'fix/hda' into for-linus
Takashi Iwai [Thu, 8 Oct 2009 10:59:58 +0000 (12:59 +0200)]
Merge branch 'fix/hda' into for-linus

15 years agoALSA: ice1724: increase SPDIF and independent stereo buffer sizes
Robert Hancock [Thu, 8 Oct 2009 02:19:21 +0000 (20:19 -0600)]
ALSA: ice1724: increase SPDIF and independent stereo buffer sizes

Increase the default and maximum PCM buffer prellocation size for ice1724's
SPDIF and independent stereo pair outputs to 256K, which is the hardware's
maximum supported size. This allows a reduction in interrupt rate and
potentially power usage when an application is not latency-critical.

Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: opl3: circular locking in the snd_opl3_note_on() and snd_opl3_note_off()
Krzysztof Helt [Wed, 7 Oct 2009 20:51:34 +0000 (22:51 +0200)]
ALSA: opl3: circular locking in the snd_opl3_note_on() and snd_opl3_note_off()

Fix following circular locking in the opl3 driver.

=======================================================
[ INFO: possible circular locking dependency detected ]
2.6.32-rc3 #87
-------------------------------------------------------
swapper/0 is trying to acquire lock:
 (&opl3->voice_lock){..-...}, at: [<cca748fe>] snd_opl3_note_off+0x1e/0xe0 [snd_opl3_synth]

but task is already holding lock:
 (&opl3->sys_timer_lock){..-...}, at: [<cca75169>] snd_opl3_timer_func+0x19/0xc0 [snd_opl3_synth]

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (&opl3->sys_timer_lock){..-...}:
       [<c02461d5>] validate_chain+0xa25/0x1040
       [<c0246aca>] __lock_acquire+0x2da/0xab0
       [<c024731a>] lock_acquire+0x7a/0xa0
       [<c044c300>] _spin_lock_irqsave+0x40/0x60
       [<cca75046>] snd_opl3_note_on+0x686/0x790 [snd_opl3_synth]
       [<cca68912>] snd_midi_process_event+0x322/0x590 [snd_seq_midi_emul]
       [<cca74245>] snd_opl3_synth_event_input+0x15/0x20 [snd_opl3_synth]
       [<cca4dcc0>] snd_seq_deliver_single_event+0x100/0x200 [snd_seq]
       [<cca4de07>] snd_seq_deliver_event+0x47/0x1f0 [snd_seq]
       [<cca4e50b>] snd_seq_dispatch_event+0x3b/0x140 [snd_seq]
       [<cca5008c>] snd_seq_check_queue+0x10c/0x120 [snd_seq]
       [<cca5037b>] snd_seq_enqueue_event+0x6b/0xe0 [snd_seq]
       [<cca4e0fd>] snd_seq_client_enqueue_event+0xdd/0x100 [snd_seq]
       [<cca4eb7a>] snd_seq_write+0xea/0x190 [snd_seq]
       [<c02827b6>] vfs_write+0x96/0x160
       [<c0282c9d>] sys_write+0x3d/0x70
       [<c0202c45>] syscall_call+0x7/0xb

-> #0 (&opl3->voice_lock){..-...}:
       [<c02467e6>] validate_chain+0x1036/0x1040
       [<c0246aca>] __lock_acquire+0x2da/0xab0
       [<c024731a>] lock_acquire+0x7a/0xa0
       [<c044c300>] _spin_lock_irqsave+0x40/0x60
       [<cca748fe>] snd_opl3_note_off+0x1e/0xe0 [snd_opl3_synth]
       [<cca751f0>] snd_opl3_timer_func+0xa0/0xc0 [snd_opl3_synth]
       [<c022ac46>] run_timer_softirq+0x166/0x1e0
       [<c02269e8>] __do_softirq+0x78/0x110
       [<c0226ac6>] do_softirq+0x46/0x50
       [<c0226e26>] irq_exit+0x36/0x40
       [<c0204bd2>] do_IRQ+0x42/0xb0
       [<c020328e>] common_interrupt+0x2e/0x40
       [<c021092f>] apm_cpu_idle+0x10f/0x290
       [<c0201b11>] cpu_idle+0x21/0x40
       [<c04443cd>] rest_init+0x4d/0x60
       [<c055c835>] start_kernel+0x235/0x280
       [<c055c066>] i386_start_kernel+0x66/0x70

other info that might help us debug this:

2 locks held by swapper/0:
 #0:  (&opl3->tlist){+.-...}, at: [<c022abd0>] run_timer_softirq+0xf0/0x1e0
 #1:  (&opl3->sys_timer_lock){..-...}, at: [<cca75169>] snd_opl3_timer_func+0x19/0xc0 [snd_opl3_synth]

stack backtrace:
Pid: 0, comm: swapper Not tainted 2.6.32-rc3 #87
Call Trace:
 [<c0245188>] print_circular_bug+0xc8/0xd0
 [<c02467e6>] validate_chain+0x1036/0x1040
 [<c0247f14>] ? check_usage_forwards+0x54/0xd0
 [<c0246aca>] __lock_acquire+0x2da/0xab0
 [<c024731a>] lock_acquire+0x7a/0xa0
 [<cca748fe>] ? snd_opl3_note_off+0x1e/0xe0 [snd_opl3_synth]
 [<c044c300>] _spin_lock_irqsave+0x40/0x60
 [<cca748fe>] ? snd_opl3_note_off+0x1e/0xe0 [snd_opl3_synth]
 [<cca748fe>] snd_opl3_note_off+0x1e/0xe0 [snd_opl3_synth]
 [<c044c307>] ? _spin_lock_irqsave+0x47/0x60
 [<cca751f0>] snd_opl3_timer_func+0xa0/0xc0 [snd_opl3_synth]
 [<c022ac46>] run_timer_softirq+0x166/0x1e0
 [<c022abd0>] ? run_timer_softirq+0xf0/0x1e0
 [<cca75150>] ? snd_opl3_timer_func+0x0/0xc0 [snd_opl3_synth]
 [<c02269e8>] __do_softirq+0x78/0x110
 [<c044c0fd>] ? _spin_unlock+0x1d/0x20
 [<c025915f>] ? handle_level_irq+0xaf/0xe0
 [<c0226ac6>] do_softirq+0x46/0x50
 [<c0226e26>] irq_exit+0x36/0x40
 [<c0204bd2>] do_IRQ+0x42/0xb0
 [<c024463c>] ? trace_hardirqs_on_caller+0x12c/0x180
 [<c020328e>] common_interrupt+0x2e/0x40
 [<c0208d88>] ? default_idle+0x38/0x50
 [<c021092f>] apm_cpu_idle+0x10f/0x290
 [<c0201b11>] cpu_idle+0x21/0x40
 [<c04443cd>] rest_init+0x4d/0x60
 [<c055c835>] start_kernel+0x235/0x280
 [<c055c210>] ? unknown_bootoption+0x0/0x210
 [<c055c066>] i386_start_kernel+0x66/0x70

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoALSA: ICE1712/24 - Change the Multi Track Peak control (level meters) from MIXER...
Pavel Hofman [Tue, 6 Oct 2009 14:04:11 +0000 (16:04 +0200)]
ALSA: ICE1712/24 - Change the Multi Track Peak control (level meters) from MIXER to PCM type

* PLEASE NOTE - this change requires the corresponding update of
  envy24control for ice1712 - kind of an ABI change.
* The "Multi Track Peak" control is read-only level meters indicator.
* The control is VERY confusing to most users since it is currently displayed
  in regular mixers. E.g. alsamixer ignores its read-only status
  and allows changing the levels with keys which makes no sense.

Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
15 years agoBlackfin: convert to GENERIC_HARDIRQS_NO__DO_IRQ
Michael Hennerich [Wed, 30 Sep 2009 07:54:40 +0000 (07:54 +0000)]
Blackfin: convert to GENERIC_HARDIRQS_NO__DO_IRQ

Blackfin already sets proper flow handlers on all IRQs, and we don't rely
on __do_IRQ, therefore we can simply select GENERIC_HARDIRQS_NO__DO_IRQ.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoBlackfin: drop all simple-gpio board resources
Mike Frysinger [Mon, 28 Sep 2009 19:14:39 +0000 (19:14 +0000)]
Blackfin: drop all simple-gpio board resources

The simple-gpio has been replaced by the gpio sysfs interface, so drop the
unused simple-gpio resources from all Blackfin boards.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoBlackfin: fix framebuffer mmap bug for nommu
Thomas Chou [Sun, 27 Sep 2009 07:38:01 +0000 (15:38 +0800)]
Blackfin: fix framebuffer mmap bug for nommu

The patch added a special get_unmapped_area for framebuffer which
was hooked to the file ops in drivers/video/fbmem.c.

This is needed since v2.6.29-rc1 where nommu vma management was
updated, and mmap of framebuffer caused kernel BUG panic. You may turn
on "Debug the global anon/private NOMMU mapping region tree" config to
such message.

As Documentation/nommu-mmap.txt said,
"To provide shareable character device support, a driver must provide
a file->f_op->get_unmapped_area() operation. The mmap() routines will
call this to get a proposed address for the mapping."

With this change, user space should call mmap for framebuffer using
shared map. Or it can try shared map first, then private map if
failed. This shared map usage is now consistent between mmu and nommu.

The sys_ file may not be a good place for this patch. But there is a
similar one for sparc. I tested a similar patch on nios2nommu, though
I don't have a blackfin board to test.

Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoBlackfin: includecheck fix: mach-bf548, ezkit.c
Jaswinder Singh Rajput [Thu, 24 Sep 2009 10:38:09 +0000 (16:08 +0530)]
Blackfin: includecheck fix: mach-bf548, ezkit.c

Fix the following 'make includecheck' warning:

  arch/blackfin/mach-bf548/boards/ezkit.c: linux/input.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoBlackfin: drop cs_change_per_word setting
Mike Frysinger [Wed, 23 Sep 2009 20:56:10 +0000 (20:56 +0000)]
Blackfin: drop cs_change_per_word setting

Structs get initialized to 0 already, and we want to punt this field, so
scrub it from all of our boards.

Reported-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoBlackfin: bf533-ezkit: convert to physmap/jedec_probe
Mike Frysinger [Wed, 23 Sep 2009 02:23:04 +0000 (22:23 -0400)]
Blackfin: bf533-ezkit: convert to physmap/jedec_probe

Now that the common jedec_probe supports the ST PSD4256G6V, no need to
use the custom stm_flash driver.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoBlackfin: convert adv7393 resources to new i2c framework
Michael Hennerich [Tue, 22 Sep 2009 13:10:09 +0000 (13:10 +0000)]
Blackfin: convert adv7393 resources to new i2c framework

Now that the driver has been updated, convert the board resources to the
new i2c framework for managing slaves.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
15 years agoMerge branch 'drm-next' of ../drm-next into drm-linus
Dave Airlie [Thu, 8 Oct 2009 04:03:05 +0000 (14:03 +1000)]
Merge branch 'drm-next' of ../drm-next into drm-linus

conflict in radeon since new init path merged with vga arb code.

Conflicts:
drivers/gpu/drm/radeon/radeon.h
drivers/gpu/drm/radeon/radeon_asic.h
drivers/gpu/drm/radeon/radeon_device.c

15 years agotracing: user local buffer variable for trace branch tracer
Steven Rostedt [Thu, 8 Oct 2009 01:53:41 +0000 (21:53 -0400)]
tracing: user local buffer variable for trace branch tracer

Just using the tr->buffer for the API to trace_buffer_lock_reserve
is not good enough. This is because the tr->buffer may change, and we
do not want to commit with a different buffer that we reserved from.

This patch uses a local variable to hold the buffer that was used to
reserve and commit with.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
15 years agotracing: fix warning on kernel/trace/trace_branch.c andtrace_hw_branches.c
Zhenwen Xu [Thu, 8 Oct 2009 01:21:46 +0000 (09:21 +0800)]
tracing: fix warning on kernel/trace/trace_branch.c andtrace_hw_branches.c

fix warnings that caused the API change of trace_buffer_lock_reserve()
change files: kernel/trace/trace_hw_branch.c
              kernel/trace/trace_branch.c

Signed-off-by: Zhenwen Xu <helight.xu@gmail.com>
LKML-Reference: <20091008012146.GA4170@helight>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
15 years agodrm/radeon/kms: fix vline register for second head.
Dave Airlie [Thu, 8 Oct 2009 01:32:49 +0000 (11:32 +1000)]
drm/radeon/kms: fix vline register for second head.

Both r100/r600 had this wrong, use the macro to extract the register
to relocate.

Signed-off-by: Dave Airlie <airlied@redhat.com>
15 years agodrm/r600: avoid assigning vb twice in blit code
Robert Noland [Mon, 5 Oct 2009 15:56:44 +0000 (11:56 -0400)]
drm/r600: avoid assigning vb twice in blit code

There is no need to assign vb before you know that space is available.

[agd5f: adapted for kernel tree.]

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
15 years agodrm/radeon: use list_for_each_entry instead of list_for_each
Dave Airlie [Wed, 7 Oct 2009 23:28:19 +0000 (09:28 +1000)]
drm/radeon: use list_for_each_entry instead of list_for_each

This is just a cleanup of the list macro usage.

Signed-off-by: Dave Airlie <airlied@redhat.com>
15 years agodrm/radeon/kms: Fix AGP support for R600/RV770 family (v2)
Jerome Glisse [Tue, 6 Oct 2009 17:04:30 +0000 (19:04 +0200)]
drm/radeon/kms: Fix AGP support for R600/RV770 family (v2)

For AGP to work unmapped access must cover VRAM & AGP as
AGP is treated like VRAM by the GPU (ie physical address).
This patch properly setup the virtual memory system aperture
to cover AGP if AGP is enabled. It seems that there is memory
corruption after resume when using AGP (RV770 seems unaffected
thought). Version 2 just fix merge issue with updated AGP
fallback patch.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
15 years agodrm/radeon/kms: Fallback to non AGP when acceleration fails to initialize (v2)
Jerome Glisse [Tue, 6 Oct 2009 17:04:29 +0000 (19:04 +0200)]
drm/radeon/kms: Fallback to non AGP when acceleration fails to initialize (v2)

When GPU acceleration is not working with AGP try to fallback to non
AGP GART (either PCI or PCIE GART). This should make KMS failure on
AGP less painfull. We still need to find out what is wrong when AGP
fails but at least user have a lot of more chances to get a working
configuration with acceleration. This patch also cleanup R600/RV770
fallback path so they use same code as others asics. Version 2
factorize agp disabling logic to avoid code duplication and bugs.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
15 years agodrm/radeon/kms: Fix RS600/RV515/R520/RS690 IRQ
Jerome Glisse [Wed, 7 Oct 2009 09:08:22 +0000 (11:08 +0200)]
drm/radeon/kms: Fix RS600/RV515/R520/RS690 IRQ

Bad generated header file leaded to use wrong register
to check IRQ status and acknowledge them. Fix the header
and use proper registers.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
15 years agoMerge branches 'cxgb3', 'misc' and 'mlx4' into for-next
Roland Dreier [Wed, 7 Oct 2009 23:03:32 +0000 (16:03 -0700)]
Merge branches 'cxgb3', 'misc' and 'mlx4' into for-next

15 years agoRDMA/addr: Fix resolution of local IPv6 addresses
David J. Wilder [Wed, 7 Oct 2009 23:03:18 +0000 (16:03 -0700)]
RDMA/addr: Fix resolution of local IPv6 addresses

This patch allows a local IPv6 address to be resolved by rdma_cm.

To reproduce the problem:

 $ rping -s -v -a ::0  &
 $ rping -c -v -a <IPv6 address local to this system>
 rdma_resolve_addr error -1

Local IPv6 address was obtained with "ip addr show ib0"

Addresses: https://bugs.openfabrics.org/show_bug.cgi?id=1759
Signed-off-by: David Wilder <dwilder@us.ibm.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoRDMA/cxgb3: Handle NULL inetdev pointer in iwch_query_port()
Steve Wise [Wed, 7 Oct 2009 22:51:07 +0000 (15:51 -0700)]
RDMA/cxgb3: Handle NULL inetdev pointer in iwch_query_port()

in_dev_get() can return NULL.  If it does, iwch_query_port() will crash.
Handle the NULL case by mapping it to port state INIT.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agomlx4_core: Add 40GigE device ID
Yevgeny Petrilin [Wed, 7 Oct 2009 22:46:49 +0000 (15:46 -0700)]
mlx4_core: Add 40GigE device ID

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoRDMA/iwcm: Don't call provider reject func with irqs disabled
Steve Wise [Wed, 7 Oct 2009 22:38:12 +0000 (15:38 -0700)]
RDMA/iwcm: Don't call provider reject func with irqs disabled

In commit cb58160e ("RDMA/iwcm: Reject the connection when the cm_id
is destroyed") a call to the provider's reject handler was added to
destroy_cm_id() to fix a provider endpoint leak.  This call needs to
be done with interrupts enabled.  So unlock and relock around this
call.  This is safe because:

1) the provider will do nothing with this endpoint until the iwcm either
   accepts or rejects.
2) the lock is only released after the iwcm state is changed, so an
   errant iwcm app that is destroying -and- rejecting the connection
   concurrently will get a failure on one of the calls.

Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoIB: Fix typo in udev rule documentation
Bart Van Assche [Wed, 7 Oct 2009 22:35:55 +0000 (15:35 -0700)]
IB: Fix typo in udev rule documentation

The proper syntax for udev rules is KERNEL==... instead of KERNEL=...

Signed-off-by: Bart Van Assche <bart.vanassche@gmail.com>
Reported-by: Lukasz Jurewicz <lukasz.jurewicz@gmail.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
15 years agoftrace: check for failure for all conversions
Steven Rostedt [Wed, 7 Oct 2009 20:57:56 +0000 (16:57 -0400)]
ftrace: check for failure for all conversions

Due to legacy code from back when the dynamic tracer used a daemon,
only core kernel code was checking for failures. This is no longer
the case. We must check for failures any time we perform text modifications.

Cc: stable@kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
15 years agotracing: correct module boundaries for ftrace_release
jolsa@redhat.com [Wed, 7 Oct 2009 17:00:35 +0000 (19:00 +0200)]
tracing: correct module boundaries for ftrace_release

When the module is about the unload we release its call records.
The ftrace_release function was given wrong values representing
the module core boundaries, thus not releasing its call records.

Plus making ftrace_release function module specific.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
LKML-Reference: <1254934835-363-3-git-send-email-jolsa@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
15 years agofutex: fix requeue_pi key imbalance
Darren Hart [Wed, 7 Oct 2009 18:46:54 +0000 (11:46 -0700)]
futex: fix requeue_pi key imbalance

If futex_wait_requeue_pi() wakes prior to requeue, we drop the
reference to the source futex_key twice, once in
handle_early_requeue_pi_wakeup() and once on our way out.

Remove the drop from the handle_early_requeue_pi_wakeup() and keep
the get/drops together in futex_wait_requeue_pi().

Reported-by: Helge Bahmann <hcb@chaoticmind.net>
Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
Cc: Helge Bahmann <hcb@chaoticmind.net>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Dinakar Guniguntala <dino@in.ibm.com>
Cc: John Stultz <johnstul@us.ibm.com>
Cc: stable-2.6.31 <stable@kernel.org>
LKML-Reference: <4ACCE21E.5030805@us.ibm.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
15 years agotracing: fix transposed numbers of lock_depth and preempt_count
Steven Rostedt [Sun, 27 Sep 2009 11:02:07 +0000 (07:02 -0400)]
tracing: fix transposed numbers of lock_depth and preempt_count

The lock_depth and preempt_count numbers in the latency format is
transposed.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
15 years agoPCI: Prevent AER driver from being loaded on non-root port PCIE devices
Kenji Kaneshige [Wed, 7 Oct 2009 16:28:56 +0000 (09:28 -0700)]
PCI: Prevent AER driver from being loaded on non-root port PCIE devices

A bug was seen on boards using a PLX 8518 switch device which advertises
AER on each of it's transparent bridges. The AER driver was loaded for
each bridge and this driver tried to access the AER source ID register
whenever an interrupt occured on the shared PCI INTX lines. The source
ID register does not exist on non root port PCIE device's  which
advertise AER and trying to access this register causes a unsupported
request error on the bridge. Thus, when the next interrupt occurs,
another error is found and the non existent source ID register is
accessed again, and so it goes on.

The result is a spammed dmesg with unsupported request PCI express
errors on the bridge device that the AER driver is loaded against.

Reported-by: Malcolm Crossley <malcolm.crossley2@gefanuc.com>
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
Tested-by: Malcolm Crossley <malcolm.crossley2@gefanuc.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: get larger bridge ranges when space is available
Yinghai Lu [Sun, 13 Sep 2009 22:57:10 +0000 (15:57 -0700)]
PCI: get larger bridge ranges when space is available

Found one system:
[   71.120590] pci 0000:40:05.0: scanning behind bridge, config 4f4a40, pass 0
[   71.138283] PCI: Scanning bus 0000:4a
[   71.140341] pci 0000:4a:00.0: found [15b3:6278] class 000c06 header type 00
[   71.157173] pci 0000:4a:00.0: reg 10 64bit mmio: [0x000000-0x0fffff]
[   71.161697] pci 0000:4a:00.0: reg 18 64bit mmio pref: [0x000000-0x7fffff]
[   71.179403] pci 0000:4a:00.0: reg 20 64bit mmio pref: [0x000000-0xfffffff]
[   71.185366] pci 0000:4a:00.0: calling quirk_resource_alignment+0x0/0x1dd
[   71.200846] pci 0000:4a:00.0: disabling ASPM on pre-1.1 PCIe device.  You can enable it with 'pcie_aspm=force'
[   71.219623] PCI: Fixups for bus 0000:4a
[   71.222194] pci 0000:40:05.0: bridge 32bit mmio: [0xcf000000-0xcf0fffff]
[   71.238662] pci 0000:40:05.0: bridge 64bit mmio pref: [0xcd800000-0xcdffffff]
[   71.255793] PCI: Bus scan for 0000:4a returning with max=4a

Device needs a big pref mmio, but BIOS doesn't allocate mmio to it aside
from a small MMIO range.  Later, the kernel will not allocate resources to
that to the device:
[   99.574030] pci 0000:4a:00.0: BAR 4: can't allocate mem resource [0xd0000000-0xcdffffff]
[   99.580102] pci 0000:4a:00.0: BAR 2: got res [0xcd800000-0xcdffffff] bus [0xcd800000-0xcdffffff] flags 0x12120c
[   99.602307] pci 0000:4a:00.0: BAR 2: moved to bus [0xcd800000-0xcdffffff] flags 0x12120c
[   99.615991] pci 0000:4a:00.0: BAR 0: got res [0xcf000000-0xcf0fffff] bus [0xcf000000-0xcf0fffff] flags 0x120204
[   99.634499] pci 0000:4a:00.0: BAR 0: moved to bus [0xcf000000-0xcf0fffff] flags 0x120204
[   99.654318] pci 0000:40:05.0: PCI bridge, secondary bus 0000:4a
[   99.658766] pci 0000:40:05.0:   IO window: disabled
[   99.675478] pci 0000:40:05.0:   MEM window: 0xcf000000-0xcf0fffff
[   99.681663] pci 0000:40:05.0:   PREFETCH window: 0x000000cd800000-0x000000cdffffff

So try to get a big range in the pci bridge if there is no child using
that range.  With the patch we get:
[   99.104525] pci 0000:4a:00.0: BAR 4: got res [0xfc080000000-0xfc08fffffff] bus [0xfc080000000-0xfc08fffffff] flags 0x12120c
[   99.123624] pci 0000:4a:00.0: BAR 4: moved to bus [0xfc080000000-0xfc08fffffff] flags 0x12120c
[   99.131977] pci 0000:4a:00.0: BAR 2: got res [0xfc090000000-0xfc0907fffff] bus [0xfc090000000-0xfc0907fffff] flags 0x12120c
[   99.149788] pci 0000:4a:00.0: BAR 2: moved to bus [0xfc090000000-0xfc0907fffff] flags 0x12120c
[   99.169248] pci 0000:4a:00.0: BAR 0: got res [0xc0200000-0xc02fffff] bus [0xc0200000-0xc02fffff] flags 0x120204
[   99.189508] pci 0000:4a:00.0: BAR 0: moved to bus [0xc0200000-0xc02fffff] flags 0x120204
[   99.206402] pci 0000:40:05.0: PCI bridge, secondary bus 0000:4a
[   99.210637] pci 0000:40:05.0:   IO window: disabled
[   99.224856] pci 0000:40:05.0:   MEM window: 0xc0200000-0xc03fffff
[   99.230019] pci 0000:40:05.0:   PREFETCH window: 0x000fc080000000-0x000fc097ffffff

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
15 years agoPCI: pci.c: fix kernel-doc notation
Randy Dunlap [Thu, 17 Sep 2009 22:28:22 +0000 (15:28 -0700)]
PCI: pci.c: fix kernel-doc notation

Fix kernel-doc notation (& warnings) in pci/pci.c.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>