1
0
Fork 0
Commit Graph

153311 Commits (3d906ef10a539ff336010afab8f6f9c4fe379695)

Author SHA1 Message Date
Peter Zijlstra 3d906ef10a perf_counter tools: Handle overlapping MMAP events
Martin Schwidefsky reported "perf report" symbol resolution
problems on S390.

Since we only report MMAP, not MUNMAP, we have to deal with
overlapping maps.

We used to simply throw out the old map on the assumption whole
maps got unmapped. This obviously doesn't deal with partial
unmaps. However it appears some dynamic linkers do fancy
partial unmaps (s390), so do something more elaborate and
truncate the old maps, only removing them when they've been
fully covered.

This resolves (part of) the S390 symbol resolution problems.

Reported-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Tested-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-23 11:42:44 +02:00
Jaswinder Singh Rajput dee412066a perf stat: Fix command option / manpage
-l is not supported, it should be -S for scale.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1245703959.6167.16.camel@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-23 10:20:02 +02:00
Jaswinder Singh Rajput c0c22dbfa8 perf_counter tools: Set alias for page-faults
"faults" should be alias for "page-faults"

Also fixed alignment and 80 characters issue

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1245683846.12092.1.camel@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-22 17:25:53 +02:00
Peter Zijlstra 520f2c346a perf report: Output more symbol related debug data
Print more symbol relocation related info under -vv.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-22 17:02:07 +02:00
Jaswinder Singh Rajput 74d5b5889e perf_counter tools: Introduce alias member in event_symbol
By introducing alias member in event_symbol :

1. duplicate lines are removed, like:
   cpu-cycles and cycles
   branch-instructions and branches
   context-switches and cs
   cpu-migrations and migrations

2. We can also add alias for another events.

Now ./perf list looks like :

List of pre-defined events (to be used in -e):

  cpu-cycles OR cycles                     [Hardware event]
  instructions                             [Hardware event]
  cache-references                         [Hardware event]
  cache-misses                             [Hardware event]
  branch-instructions OR branches          [Hardware event]
  branch-misses                            [Hardware event]
  bus-cycles                               [Hardware event]

  cpu-clock                                [Software event]
  task-clock                               [Software event]
  page-faults                              [Software event]
  faults                                   [Software event]
  minor-faults                             [Software event]
  major-faults                             [Software event]
  context-switches OR cs                   [Software event]
  cpu-migrations OR migrations             [Software event]

  rNNN                                     [raw hardware event descriptor]

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1245669268.17153.8.camel@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-22 13:29:58 +02:00
Jaswinder Singh Rajput 51e2684231 perf_counter tools: Define separate declarations for H/W and S/W events
Define separate declarations for H/W and S/W events to:

 1. Shorten name to save some space so that we can add more members
 2. Fix alignment
 3. Avoid declaring HARDWARE/SOFTWARE again and again.

Removed unused CR(x, y)

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <1245669194.17153.6.camel@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-22 13:29:57 +02:00
Ingo Molnar c1f47b454c perf_counter tools: Fix vmlinux fallback when running on a different kernel
Lucas De Marchi reported that perf report and perf annotate
displays mismatching profile if a perf.data is analyzed on
an older kernel - even if the correct vmlinux is specified
via the -k option.

The reason is the fallback path in util/symbol.c:dso__load_kernel():

int dso__load_kernel(struct dso *self, const char *vmlinux,
                     symbol_filter_t filter, int verbose)
{
        int err = -1;

        if (vmlinux)
                err = dso__load_vmlinux(self, vmlinux, filter, verbose);

        if (err)
                err = dso__load_kallsyms(self, filter, verbose);

        return err;
}

dso__load_vmlinux() returns negative on error, but on success it
returns the number of symbols loaded - which confuses the function
to load the kallsyms.

This is normally harmless, as reporting is usually performed on the
same kernel that is analyzed - but if there's a mismatch then we
load the wrong kallsyms and create a non-sensical symbol tree.

The fix is to only fall back to kallsyms on errors.

Reported-by: Lucas De Marchi <lucas.de.marchi@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-21 13:58:51 +02:00
Jaswinder Singh Rajput d9f2a5ecb2 perf_counter, x8: Fix L1-data-Cache-Store-Referencees for AMD
Fix AMD's Data Cache Refills from System event.

After this patch :

 ./tools/perf/perf stat -e l1d -e l1d-misses -e l1d-write -e l1d-prefetch -e l1d-prefetch-miss -e l1i -e l1i-misses -e l1i-prefetch -e l2 -e l2-misses -e l2-write -e dtlb -e dtlb-misses -e itlb -e itlb-misses -e bpu -e bpu-misses ls /dev/ > /dev/null

 Performance counter stats for 'ls /dev/':

        2499484  L1-data-Cache-Load-Referencees             (scaled from 3.97%)
          70347  L1-data-Cache-Load-Misses                  (scaled from 7.30%)
           9360  L1-data-Cache-Store-Referencees            (scaled from 8.64%)
          32804  L1-data-Cache-Prefetch-Referencees         (scaled from 17.72%)
           7693  L1-data-Cache-Prefetch-Misses              (scaled from 22.97%)
        2180945  L1-instruction-Cache-Load-Referencees      (scaled from 28.48%)
          14518  L1-instruction-Cache-Load-Misses           (scaled from 35.00%)
           2405  L1-instruction-Cache-Prefetch-Referencees  (scaled from 34.89%)
          71387  L2-Cache-Load-Referencees                  (scaled from 34.94%)
          18732  L2-Cache-Load-Misses                       (scaled from 34.92%)
          79918  L2-Cache-Store-Referencees                 (scaled from 36.02%)
        1295294  Data-TLB-Cache-Load-Referencees            (scaled from 35.99%)
          30896  Data-TLB-Cache-Load-Misses                 (scaled from 33.36%)
        1222030  Instruction-TLB-Cache-Load-Referencees     (scaled from 29.46%)
            357  Instruction-TLB-Cache-Load-Misses          (scaled from 20.46%)
         530888  Branch-Cache-Load-Referencees              (scaled from 11.48%)
           8638  Branch-Cache-Load-Misses                   (scaled from 5.09%)

    0.011295149  seconds time elapsed.

Earlier it always shows value 0.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
LKML-Reference: <1245484165.3102.6.camel@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-21 13:25:55 +02:00
Johannes Weiner c277331d5f mm: page_alloc: clear PG_locked before checking flags on free
da456f1 "page allocator: do not disable interrupts in free_page_mlock()" moved
the PG_mlocked clearing after the flag sanity checking which makes mlocked
pages always trigger 'bad page'.  Fix this by clearing the bit up front.

Reported--and-debugged-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Tested-by: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-20 16:08:22 -07:00
Linus Torvalds 9063c61fd5 x86, 64-bit: Clean up user address masking
The discussion about using "access_ok()" in get_user_pages_fast() (see
commit 7f8189068726492950bf1a2dcfd9b51314560abf: "x86: don't use
'access_ok()' as a range check in get_user_pages_fast()" for details and
end result), made us notice that x86-64 was really being very sloppy
about virtual address checking.

So be way more careful and straightforward about masking x86-64 virtual
addresses:

 - All the VIRTUAL_MASK* variants now cover half of the address
   space, it's not like we can use the full mask on a signed
   integer, and the larger mask just invites mistakes when
   applying it to either half of the 48-bit address space.

 - /proc/kcore's kc_offset_to_vaddr() becomes a lot more
   obvious when it transforms a file offset into a
   (kernel-half) virtual address.

 - Unify/simplify the 32-bit and 64-bit USER_DS definition to
   be based on TASK_SIZE_MAX.

This cleanup and more careful/obvious user virtual address checking also
uncovered a buglet in the x86-64 implementation of strnlen_user(): it
would do an "access_ok()" check on the whole potential area, even if the
string itself was much shorter, and thus return an error even for valid
strings. Our sloppy checking had hidden this.

So this fixes 'strnlen_user()' to do this properly, the same way we
already handled user strings in 'strncpy_from_user()'.  Namely by just
checking the first byte, and then relying on fault handling for the
rest.  That always works, since we impose a guard page that cannot be
mapped at the end of the user space address space (and even if we
didn't, we'd have the address space hole).

Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh.dickins@tiscali.co.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-20 15:40:00 -07:00
Linus Torvalds 2453d6ff6f Merge branch 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'irq-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  genirq, irq.h: Fix kernel-doc warnings
  genirq: fix comment to say IRQ_WAKE_THREAD
2009-06-20 11:30:01 -07:00
Linus Torvalds 12e24f34cb Merge branch 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'perfcounters-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (49 commits)
  perfcounter: Handle some IO return values
  perf_counter: Push perf_sample_data through the swcounter code
  perf_counter tools: Define and use our own u64, s64 etc. definitions
  perf_counter: Close race in perf_lock_task_context()
  perf_counter, x86: Improve interactions with fast-gup
  perf_counter: Simplify and fix task migration counting
  perf_counter tools: Add a data file header
  perf_counter: Update userspace callchain sampling uses
  perf_counter: Make callchain samples extensible
  perf report: Filter to parent set by default
  perf_counter tools: Handle lost events
  perf_counter: Add event overlow handling
  fs: Provide empty .set_page_dirty() aop for anon inodes
  perf_counter: tools: Makefile tweaks for 64-bit powerpc
  perf_counter: powerpc: Add processor back-end for MPC7450 family
  perf_counter: powerpc: Make powerpc perf_counter code safe for 32-bit kernels
  perf_counter: powerpc: Change how processor-specific back-ends get selected
  perf_counter: powerpc: Use unsigned long for register and constraint values
  perf_counter: powerpc: Enable use of software counters on 32-bit powerpc
  perf_counter tools: Add and use isprint()
  ...
2009-06-20 11:29:32 -07:00
Linus Torvalds 1eb51c33b2 Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/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: Fix out of scope variable access in sched_slice()
  sched: Hide runqueues from direct refer at source code level
  sched: Remove unneeded __ref tag
  sched, x86: Fix cpufreq + sched_clock() TSC scaling
2009-06-20 10:57:40 -07:00
Linus Torvalds b0b7065b64 Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/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: (24 commits)
  tracing/urgent: warn in case of ftrace_start_up inbalance
  tracing/urgent: fix unbalanced ftrace_start_up
  function-graph: add stack frame test
  function-graph: disable when both x86_32 and optimize for size are configured
  ring-buffer: have benchmark test print to trace buffer
  ring-buffer: do not grab locks in nmi
  ring-buffer: add locks around rb_per_cpu_empty
  ring-buffer: check for less than two in size allocation
  ring-buffer: remove useless compile check for buffer_page size
  ring-buffer: remove useless warn on check
  ring-buffer: use BUF_PAGE_HDR_SIZE in calculating index
  tracing: update sample event documentation
  tracing/filters: fix race between filter setting and module unload
  tracing/filters: free filter_string in destroy_preds()
  ring-buffer: use commit counters for commit pointer accounting
  ring-buffer: remove unused variable
  ring-buffer: have benchmark test handle discarded events
  ring-buffer: prevent adding write in discarded area
  tracing/filters: strloc should be unsigned short
  tracing/filters: operand can be negative
  ...

Fix up kmemcheck-induced conflict in kernel/trace/ring_buffer.c manually
2009-06-20 10:56:46 -07:00
Linus Torvalds 38df92b8ce Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/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:
  NOHZ: Properly feed cpufreq ondemand governor
2009-06-20 10:51:44 -07:00
Linus Torvalds c4c5ab3089 Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (45 commits)
  x86, mce: fix error path in mce_create_device()
  x86: use zalloc_cpumask_var for mce_dev_initialized
  x86: fix duplicated sysfs attribute
  x86: de-assembler-ize asm/desc.h
  i386: fix/simplify espfix stack switching, move it into assembly
  i386: fix return to 16-bit stack from NMI handler
  x86, ioapic: Don't call disconnect_bsp_APIC if no APIC present
  x86: Remove duplicated #include's
  x86: msr.h linux/types.h is only required for __KERNEL__
  x86: nmi: Add Intel processor 0x6f4 to NMI perfctr1 workaround
  x86, mce: mce_intel.c needs <asm/apic.h>
  x86: apic/io_apic.c: dmar_msi_type should be static
  x86, io_apic.c: Work around compiler warning
  x86: mce: Don't touch THERMAL_APIC_VECTOR if no active APIC present
  x86: mce: Handle banks == 0 case in K7 quirk
  x86, boot: use .code16gcc instead of .code16
  x86: correct the conversion of EFI memory types
  x86: cap iomem_resource to addressable physical memory
  x86, mce: rename _64.c files which are no longer 64-bit-specific
  x86, mce: mce.h cleanup
  ...

Manually fix up trivial conflict in arch/x86/mm/fault.c
2009-06-20 10:49:48 -07:00
Linus Torvalds 7fd5b632db Merge branch 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze
* 'for-linus' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: Add missing symbols for CONSTRUCTORS support
  microblaze: remove init_mm
2009-06-20 10:37:01 -07:00
Linus Torvalds ad5cf46b4e Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes:
  kernel-doc: fix param matching for array params
  kernel-doc: ignore kmemcheck_bitfield_begin/end
  kallsyms: fix inverted valid symbol checking
  kbuild: fix build error during make htmldocs
2009-06-20 10:19:49 -07:00
Linus Torvalds 93db629495 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (35 commits)
  Input: add driver for Synaptics I2C touchpad
  Input: synaptics - add support for reporting x/y resolution
  Input: ALPS - handle touchpoints buttons correctly
  Input: gpio-keys - change timer to workqueue
  Input: ads7846 - pin change interrupt support
  Input: add support for touchscreen on W90P910 ARM platform
  Input: appletouch - improve finger detection
  Input: wacom - clear Intuos4 wheel data when finger leaves proximity
  Input: ucb1400 - move static function from header into core
  Input: add driver for EETI touchpanels
  Input: ads7846 - more detailed model name in sysfs
  Input: ads7846 - support swapping x and y axes
  Input: ati_remote2 - use non-atomic bitops
  Input: introduce lm8323 keypad driver
  Input: psmouse - ESD workaround fix for OLPC XO touchpad
  Input: tsc2007 - make sure platform provides get_pendown_state()
  Input: uinput - flush all pending ff effects before destroying device
  Input: simplify name handling for certain input handles
  Input: serio - do not use deprecated dev.power.power_state
  Input: wacom - add support for Intuos4 tablets
  ...
2009-06-20 10:17:02 -07:00
Linus Torvalds 43813f399c Merge branch 'drm-linus' of git://git.kernel.org/pub/scm/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)
  agp/intel: Make intel_i965_mask_memory use dma_addr_t for physical addresses
  agp: add user mapping support to ATI AGP bridge.
  drm/i915: enable GEM on PAE.
  drm/radeon: fix unused variables warning
  agp: switch AGP to use page array instead of unsigned long array
  agpgart: detected ALi M???? chipset with M1621
  drm/radeon: command stream checker for r3xx-r5xx hardware
  drm/radeon: Fully initialize LVDS info also when we can't get it from the ROM.
  radeon: Fix CP byte order on big endian architectures with KMS.
  agp/uninorth: Handle user memory types.
  drm/ttm: Add some powerpc cache flush code.
  radeon: Enable modesetting on non-x86.
  drm/radeon: Respect AGP cant_use_aperture flag.
  drm: EDID endianness fixes.
  drm/radeon: this VRAM vs aperture test is wrong, just remove it.
  drm/ttm: fix an error path to exit function correctly
  drm: Apply "Memory fragmentation from lost alignment blocks"
  ttm: Return -ERESTART when a signal interrupts bo eviction.
  drm: Remove memory debugging infrastructure.
  drm/i915: Clear fence register on tiling stride change.
  ...
2009-06-20 10:15:30 -07:00
Linus Torvalds a552f0af75 Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6:
  fat: Fix the removal of opts->fs_dmask
2009-06-20 10:14:11 -07:00
Linus Torvalds e6423407d0 Merge branch 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* 'for-2.6.31' of git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (34 commits)
  ide-cd: prevent null pointer deref via cdrom_newpc_intr
  ide: BUG() on unknown requests
  ide: filter out invalid DMA xfer mode changes in HDIO_DRIVE_CMD ioctl handler
  ide: do not access ide_drive_t 'drive_data' field directly
  sl82c105: implement test_irq() method
  siimage: implement test_irq() method
  pdc202xx_old: implement test_irq() method (take 2)
  cmd64x: implement test_irq() method
  cmd640: implement test_irq() method
  ide: move ack_intr() method into 'struct ide_port_ops' (take 2)
  ide: move IRQ clearing from ack_intr() method to clear_irq() method (take 2)
  siimage: use ide_dma_test_irq() (take 2)
  cmd64x: implement clear_irq() method (take 2)
  ide: call clear_irq() method in ide_timer_expiry()
  sgiioc4: coding style cleanup
  ide: don't enable IORDY at a probe time
  ide: IORDY handling fixes
  ata: add ata_id_pio_need_iordy() helper (v2)
  ide-tape: fix build issue
  ide: unify interrupt reason checking
  ...
2009-06-20 10:11:11 -07:00
Linus Torvalds 7f81890687 x86: don't use 'access_ok()' as a range check in get_user_pages_fast()
It's really not right to use 'access_ok()', since that is meant for the
normal "get_user()" and "copy_from/to_user()" accesses, which are done
through the TLB, rather than through the page tables.

Why? access_ok() does both too few, and too many checks.  Too many,
because it is meant for regular kernel accesses that will not honor the
'user' bit in the page tables, and because it honors the USER_DS vs
KERNEL_DS distinction that we shouldn't care about in GUP.  And too few,
because it doesn't do the 'canonical' check on the address on x86-64,
since the TLB will do that for us.

So instead of using a function that isn't meant for this, and does
something else and much more complicated, just do the real rules: we
don't want the range to overflow, and on x86-64, we want it to be a
canonical low address (on 32-bit, all addresses are canonical).

Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-20 09:52:27 -07:00
Ingo Molnar d4c4038343 Merge branch 'tip/tracing/urgent-1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent 2009-06-20 18:26:48 +02:00
Ingo Molnar 3daeb4da9a Merge branch 'tip/tracing/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into tracing/urgent 2009-06-20 17:25:49 +02:00
OGAWA Hirofumi 3e107603ae fat: Fix the removal of opts->fs_dmask
(ce3b0f8d5c2203301fc87f3aaaed73e5819e2a48: New helper - current_umask())
is removing the opts->fs_dmask, probably it's a cut-and-paste
miss or something.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2009-06-20 21:50:47 +09:00
Michal Simek 05bf7d4631 microblaze: Add missing symbols for CONSTRUCTORS support
Commit b99b87f70c add CONSTRUCTOR
support to Linux but Microblaze not defined KERNEL_CTORS symbols
which are used with that patch.
This patch fixed it.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-06-20 14:36:58 +02:00
Arnd Bergmann 20f54c490c microblaze: remove init_mm
Alexey removed the definition for init_mm from all architectures
but forgot microblaze, which was only recently added.
This fixes the microblaze build by dropping it there as well.

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2009-06-20 14:36:50 +02:00
Randy Dunlap e34e7dbb35 kernel-doc: fix param matching for array params
Fix function actual parameter vs. kernel-doc description matching
so that a warning is not printed when it should not be:

Warning(include/linux/etherdevice.h:199): Excess function parameter 'addr' description in 'is_etherdev_addr'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-20 13:35:01 +02:00
Randy Dunlap b2fd6dbf25 kernel-doc: ignore kmemcheck_bitfield_begin/end
Teach kernel-doc to ignore kmemcheck_bitfield_{begin,end} sugar
so that it won't generate warnings like this:

Warning(include/net/sock.h:297): No description found for parameter 'kmemcheck_bitfield_begin(flags)'
Warning(include/net/sock.h:297): No description found for parameter 'kmemcheck_bitfield_end(flags)'

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-20 13:35:00 +02:00
Mike Frysinger ac6ca5c86c kallsyms: fix inverted valid symbol checking
The previous commit (17b1f0de) introduced a slightly broken consolidation
of the memory text range checking.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-20 13:33:23 +02:00
Amerigo Wang b767b9059f kbuild: fix build error during make htmldocs
Fix the following build error when do 'make htmldocs':

 DOCPROC Documentation/DocBook/debugobjects.xml
exec /scripts/kernel-doc: No such file or directory
exec /scripts/kernel-doc: No such file or directory

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: WANG Cong <amwang@redhat.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2009-06-20 13:31:28 +02:00
Frederic Weisbecker eadc84cc01 perfcounter: Handle some IO return values
Building perfcounter tools raises the following warnings:

 builtin-record.c: In function ‘atexit_header’:
 builtin-record.c:464: erreur: ignoring return value of ‘pwrite’, declared with attribute warn_unused_result
 builtin-record.c: In function ‘__cmd_record’:
 builtin-record.c:503: erreur: ignoring return value of ‘read’, declared with attribute warn_unused_result

 builtin-report.c: In function ‘__cmd_report’:
 builtin-report.c:1403: erreur: ignoring return value of ‘read’, declared with attribute warn_unused_result

This patch handles these IO return values.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <1245456100-5477-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-20 12:30:33 +02:00
Peter Zijlstra 92bf309a9c perf_counter: Push perf_sample_data through the swcounter code
Push the perf_sample_data further outwards to the swcounter interface,
to abstract it away some more.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-06-20 12:30:30 +02:00
Rainer Weikusat 39c58f37a1 ide-cd: prevent null pointer deref via cdrom_newpc_intr
With 2.6.30, the error handling code in cdrom_newpc_intr was changed
to deal with partial request failures by normally completing the 'good'
parts of a request and only 'error' the last (and presumably,
incompletely transferred) bio associated with a particular
request. In order to do this, ide_complete_rq is called over
ide_cd_error_cmd() to partially complete the rq. The block layer
does partial completion only for requests with bio's and if the
rq doesn't have one (eg 'GPCMD_READ_DISC_INFO') the request is
completed as a whole and the drive->hwif->rq pointer set to NULL
afterwards. When calling ide_complete_rq again to report
the error, this null pointer is derefenced, resulting in a kernel
crash.

This fixes http://bugzilla.kernel.org/show_bug.cgi?id=13399.

Signed-off-by: Rainer Weikusat <rweikusat@mssgmbh.com>
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2009-06-20 12:22:47 +02:00
Ingo Molnar 1d99100120 Merge branch 'x86/mce3' into x86/urgent 2009-06-20 10:54:22 +02:00
Mike Rapoport eef3e4cab7 Input: add driver for Synaptics I2C touchpad
This driver supports Synaptics I2C touchpad controller on eXeda
mobile device. Unfortunaltely it only works in relative mode and
thus is not comaptible with Xorg Synaptics driver.

Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-06-19 22:56:45 -07:00
Tero Saarni ec20a022aa Input: synaptics - add support for reporting x/y resolution
Synaptics uses anisotropic coordinate system.  On some wide touchpads
vertical resolution can be twice as high as horizontal which causes
unequal sensitivity on x/y directions.  Add support for reading the
resolution with EVIOCGABS ioctl.

Signed-off-by: Tero Saarni <tero.saarni@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
2009-06-19 22:55:17 -07:00
Frederic Weisbecker 9ea1a153a4 tracing/urgent: warn in case of ftrace_start_up inbalance
Prevent from further ftrace_start_up inbalances so that we avoid
future nop patching omissions with dynamic ftrace.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
2009-06-20 06:52:21 +02:00
Frederic Weisbecker c85a17e226 tracing/urgent: fix unbalanced ftrace_start_up
Perfcounter reports the following stats for a wide system
profiling:

 #
 # (2364 samples)
 #
 # Overhead  Symbol
 # ........  ......
 #
    15.40%  [k] mwait_idle_with_hints
     8.29%  [k] read_hpet
     5.75%  [k] ftrace_caller
     3.60%  [k] ftrace_call
     [...]

This snapshot has been taken while neither the function tracer nor
the function graph tracer was running.
With dynamic ftrace, such results show a wrong ftrace behaviour
because all calls to ftrace_caller or ftrace_graph_caller (the patched
calls to mcount) are supposed to be patched into nop if none of those
tracers are running.

The problem occurs after the first run of the function tracer. Once we
launch it a second time, the callsites will never be nopped back,
unless you set custom filters.
For example it happens during the self tests at boot time.
The function tracer selftest runs, and then the dynamic tracing is
tested too. After that, the callsites are left un-nopped.

This is because the reset callback of the function tracer tries to
unregister two ftrace callbacks in once: the common function tracer
and the function tracer with stack backtrace, regardless of which
one is currently in use.
It then creates an unbalance on ftrace_start_up value which is expected
to be zero when the last ftrace callback is unregistered. When it
reaches zero, the FTRACE_DISABLE_CALLS is set on the next ftrace
command, triggering the patching into nop. But since it becomes
unbalanced, ie becomes lower than zero, if the kernel functions
are patched again (as in every further function tracer runs), they
won't ever be nopped back.

Note that ftrace_call and ftrace_graph_call are still patched back
to ftrace_stub in the off case, but not the callers of ftrace_call
and ftrace_graph_caller. It means that the tracing is well deactivated
but we waste a useless call into every kernel function.

This patch just unregisters the right ftrace_ops for the function
tracer on its reset callback and ignores the other one which is
not registered, fixing the unbalance. The problem also happens
is .30

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: stable@kernel.org
2009-06-20 06:28:46 +02:00
Pierre Willenbrock 0b7af262ab agp/intel: Make intel_i965_mask_memory use dma_addr_t for physical addresses
Otherwise, the high bits to be stuffed in the unused lower bits of the
page address are lost.

Signed-off-by: Pierre Willenbrock <pierre@pirsoft.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2009-06-20 14:16:59 +10:00
Linus Torvalds fb20871a54 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (342 commits)
  Staging: comedi: fix build errors
  Staging: udlfb: update to version 0.2.3
  Staging: udlfb: fix some sparse warnings.
  Staging: udlfb: clean up checkpatch warnings in udlfb.c
  Staging: udlfb: clean up checkpatch warnings in udlfb.h
  Staging: udlfb: add udlfb driver to build
  Staging: add udlfb driver
  Staging: pata_rdc: remove pointless comments
  Staging: pata_rdc: remove DRIVER macros
  Staging: pata_rdc: remove dbgprintf macro
  Staging: pata_rdc: remove broken flag
  Staging: pata_rdc: fix build warnings
  Staging: pata_rdc: use PCI_DEVICE
  Staging: pata_rdc: remove function prototypes
  Staging: pata_rdc: coding style fixes
  Staging: pata_rdc: convert code to work in 2.6.29
  Staging: pata_rdc: add driver to the build system
  Staging: add pata_rdc driver
  Staging: remove obsolete serqt_usb driver
  Staging: serqt_usb2 add the driver to the build
  ...
2009-06-19 17:48:32 -07:00
Linus Torvalds bee89ab228 Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify
* 'for-linus' of git://git.infradead.org/users/eparis/notify:
  inotify: inotify_destroy_mark_entry could get called twice
2009-06-19 17:46:44 -07:00
Linus Torvalds 5c6fb0059c Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  i2c: New macro to initialize i2c address lists on the fly
  i2c: Don't advertise i2c functions when not available
  i2c: Use rwsem instead of mutex for board info
  i2c: Add a sysfs interface to instantiate devices
  i2c: Limit core locking to the necessary sections
  i2c: Kill the redundant client list
  i2c: Kill is_newstyle_driver
  i2c: Merge i2c_attach_client into i2c_new_device
  i2c: Drop i2c_probe function
  i2c: Get rid of the legacy binding model
  i2c: Kill client_register and client_unregister methods
2009-06-19 17:45:51 -07:00
Linus Torvalds 31583d6acf Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
  Fix kernel-doc parameter name typo in blk-settings.c:
  block: rename CONFIG_LBD to CONFIG_LBDAF
  block: Fix bounce_pfn setting
  hd: stop defining MAJOR_NR
2009-06-19 17:43:04 -07:00
Linus Torvalds ee37ba7a42 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
  sparc64: Fix UP bootup regression.
2009-06-19 17:42:01 -07:00
Linus Torvalds 773d7a09e1 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (35 commits)
  powerpc/5121: make clock debug output more readable
  powerpc/5xxx: Add common mpc5xxx_get_bus_frequency() function
  powerpc/5200: Update pcm030.dts to add i2c eeprom and delete cruft
  powerpc/5200: convert mpc52xx_psc_spi to use cs_control callback
  fbdev/xilinxfb: Fix improper casting and tighen up probe path
  usb/ps3: Add missing annotations
  powerpc: Add memory clobber to mtspr()
  powerpc: Fix invalid construct in our CPU selection Kconfig
  ps3rom: Use ps3_system_bus_[gs]et_drvdata() instead of direct access
  powerpc: Add configurable -Werror for arch/powerpc
  of_serial: Add UPF_FIXED_TYPE flag
  drivers/hvc: Add missing __devexit_p()
  net/ps3: gelic - Add missing annotations
  powerpc: Introduce macro spin_event_timeout()
  powerpc/warp: Fix ISA_DMA_THRESHOLD default
  powerpc/bootwrapper: Custom build options for XPedite52xx targets
  powerpc/85xx: Add defconfig for X-ES MPC85xx boards
  powerpc/85xx: Add dts files for X-ES MPC85xx boards
  powerpc/85xx: Add platform support for X-ES MPC85xx boards
  83xx: add support for the kmeter1 board.
  ...
2009-06-19 17:40:40 -07:00
Linus Torvalds 17fad5209e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/vapier/blackfin:
  Blackfin: convert page/tlb to asm-generic
  Blackfin: convert types to asm-generic
  Blackfin: convert irq/process to asm-generic
  Blackfin: convert signal/mmap to asm-generic
  Blackfin: convert locking primitives to asm-generic
  Blackfin: convert termios to asm-generic
  Blackfin: convert simple headers to asm-generic
  Blackfin: convert socket/poll to asm-generic
  Blackfin: convert user/elf to asm-generic
  Blackfin: convert shm/sysv/ipc to asm-generic
  Blackfin: convert asm/ioctls.h to asm-generic/ioctls.h
  Blackfin: only build irqpanic.c when needed
  Blackfin: pull in asm/io.h in ksyms for prototypes
  Blackfin: use common test_bit() rather than __test_bit()
2009-06-19 17:34:46 -07:00
Joe Perches 898f96fd50 MAINTAINERS: kmemtrace pattern update
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Zhao Lei <zhaolei@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-19 16:46:09 -07:00
Joe Perches a26c4463f6 MAINTAINERS: ieee802154 fix pattern typo
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-06-19 16:46:09 -07:00