1
Commit Graph

155758 Commits

Author SHA1 Message Date
Russell King
e81b795d44 Merge branch 'mxc-defconfig-updates' of git://git.pengutronix.de/git/imx/linux-2.6 2009-07-30 10:47:09 +01:00
Russell King
5dbc80f69e Merge branch 'fix' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 2009-07-30 10:46:12 +01:00
Uwe Kleine-König
3ef7143d22 ARM: 5627/1: Fix restoring of lr at the end of mcount
After ftrace_trace_function is called r1 is probably clobbered so don't
try to use its value for restoring.

This was introduced in v2.6.29~38^2~7

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-30 10:44:16 +01:00
Linus Walleij
e624859e7e ARM: 5624/1: Document cache aliasing region
Augment the memory.txt file for ARM to list the cache aliasing
region ffff4000-fffffff.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-30 10:44:14 +01:00
Sascha Hauer
42469ff014 mx3 defconfig update
- enable PCM043, MX31LILLY, ARMADILLO5X0 and MX35_3DS boards
- enable MXC nand driver
- enable UBI support
- disable cs89x0 support which broke all boards which do not have this chip

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-07-28 14:24:28 +02:00
Sascha Hauer
8666f8deec mx27 defconfig update
- enable MX27_3DS and MX27LITE Board
- enable MXC nand driver
- enable UBI support

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2009-07-28 14:22:42 +02:00
Tomas Cech
c640e1cb45 ARM: 5623/1: Treo680: ir shutdown typo fix
correct GPIO freed in treo680_irda_shutdown()

Signed-off-by: Tomáš ?ech <sleep_walker@suse.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-27 14:23:57 +01:00
Jaswinder Singh Rajput
40e03b581a ARM: includecheck fix: plat-stmp3xxx/pinmux.c
fix the following 'make includecheck' warning:

  arch/arm/plat-stmp3xxx/pinmux.c: linux/sysdev.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: dmitry pervushin <dpervushin@embeddedalley.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:08:24 +01:00
Jaswinder Singh Rajput
2e6e2c143c ARM: includecheck fix: plat-s3c64xx/pm.c
fix the following 'make includecheck' warning:

  arch/arm/plat-s3c64xx/pm.c: plat/regs-gpio.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:08:23 +01:00
Jaswinder Singh Rajput
efda2b4c8a ARM: includecheck fix: mach-omap2/mcbsp.c
fix the following 'make includecheck' warning:

  arch/arm/mach-omap2/mcbsp.c: mach/irqs.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Eduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:08:23 +01:00
Jaswinder Singh Rajput
52cbbd41f7 ARM: includecheck fix: mach-omap1/mcbsp.c
fix the following 'make includecheck' warning:

  arch/arm/mach-omap1/mcbsp.c: mach/irqs.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Eduardo Valentin <eduardo.valentin@nokia.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:08:22 +01:00
Jaswinder Singh Rajput
7a33aed825 ARM: includecheck fix: board-sffsdr.c
fix the following 'make includecheck' warning:

  arch/arm/mach-davinci/board-sffsdr.c: mach/common.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Acked-by: Philip Balister <philip@opensdr.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:07:02 +01:00
Jaswinder Singh Rajput
78eacf0b03 ARM: includecheck fix: board-dm646x-evm.c
fix the following 'make includecheck' warning:

  arch/arm/mach-davinci/board-dm646x-evm.c: mach/common.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:07:02 +01:00
Jaswinder Singh Rajput
6608168486 ARM: includecheck fix: board-dm644x-evm.c
fix the following 'make includecheck' warning:

  arch/arm/mach-davinci/board-dm644x-evm.c: mach/common.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:07:01 +01:00
Jaswinder Singh Rajput
7f25b0ac2d ARM: includecheck fix: board-dm355-leopard.c
fix the following 'make includecheck' warning:

  arch/arm/mach-davinci/board-dm355-leopard.c: mach/common.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:07:01 +01:00
Jaswinder Singh Rajput
44e96d4521 ARM: includecheck fix: board-dm355-evm.c
fix the following 'make includecheck' warning:

  arch/arm/mach-davinci/board-dm355-evm.c: mach/common.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:07:01 +01:00
Jaswinder Singh Rajput
feecaf73bb ARM: includecheck fix: atomic.h
fix the following 'make includecheck' warning:

  arch/arm/include/asm/atomic.h: asm/system.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:07:01 +01:00
Jaswinder Singh Rajput
81566a060b ARM: includecheck fix: misc.c
fix the following 'make includecheck' warning:

  arch/arm/boot/compressed/misc.c: linux/compiler.h is included more than once.

Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-25 17:07:00 +01:00
Hartley Sweeten
3174c88af4 [ARM] 5611/1: ep93xx: update ts72xx nor flash support
Update the NOR flash support for TS-7200.

The TS-7200 models all have 16-bit NOR flash.  Update the platform
init to support this.

Remove the private TS72XX_NOR_* defines and use the common ep93xx
defines for the external chip select physical base address instead.

Move the NOR flash registration into a static __init function.  When
the NAND flash support is updated this function will also be used
to register the NAND flash for the TS-7250 and TS-7260.

Tested-by: Matthieu Crapet <mcrapet@gmail.com>
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-07-23 10:21:24 +01:00
Mike Rapoport
1d3e216f1d [ARM] pxa/em-x270: fix compile failure when CONFIG_APM_EMULATION=n
If CONFIG_APM_EMULATION=n em-x270 build fails with linker error:

arch/arm/mach-pxa/built-in.o: In function `em_x270_battery_critical': em-x270.c:(.text+0x12c0): undefined reference to `apm_queue_event'
arch/arm/mach-pxa/built-in.o: In function `em_x270_battery_low': em-x270.c:(.text+0x12c8): undefined reference to `apm_queue_event'
make: *** [.tmp_vmlinux1] Error 1

Fix it.

Signed-off-by: Mike Rapoport <mike@compulab.co.il>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-07-23 10:43:40 +08:00
Linus Torvalds
4be3bd7849 Linux 2.6.31-rc4 2009-07-22 19:32:59 -07:00
Linus Torvalds
b600ffaebc 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: Fix UP compile failure caused by irq_thread_check_affinity
2009-07-22 16:44:33 -07:00
Linus Torvalds
81cbf6d055 Merge branch 'lockdep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep
* 'lockdep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-lockdep:
  lockdep: Fix lockdep annotation for pipe_double_lock()
2009-07-22 16:44:18 -07:00
Bruno Premont
61f3826133 genirq: Fix UP compile failure caused by irq_thread_check_affinity
Since genirq: Delegate irq affinity setting to the irq thread
(591d2fb02e) compilation with
CONFIG_SMP=n fails with following error:

/usr/src/linux-2.6/kernel/irq/manage.c:
   In function 'irq_thread_check_affinity':
/usr/src/linux-2.6/kernel/irq/manage.c:475:
   error: 'struct irq_desc' has no member named 'affinity'
make[4]: *** [kernel/irq/manage.o] Error 1

That commit adds a new function irq_thread_check_affinity() which
uses struct irq_desc.affinity which is only available for CONFIG_SMP=y.
Move that function under #ifdef CONFIG_SMP.

[ tglx@brownpaperbag: compile and boot tested on UP and SMP ]

Signed-off-by: Bruno Premont <bonbons@linux-vserver.org>
LKML-Reference: <20090722222232.2eb3e1c4@neptune.home>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2009-07-22 23:18:46 +02:00
Peter Zijlstra
023d43c7b5 lockdep: Fix lockdep annotation for pipe_double_lock()
The presumed use of the pipe_double_lock() routine is to lock 2 locks in
a deadlock free way by ordering the locks by their address. However it
fails to keep the specified lock classes in order and explicitly
annotates a deadlock.

Rectify this.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Miklos Szeredi <mszeredi@suse.cz>
LKML-Reference: <1248163763.15751.11098.camel@twins>
2009-07-22 21:14:14 +02:00
Linus Torvalds
3c3301083e Merge branch 'perf-counters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-perf
* 'perf-counters-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-perf: (31 commits)
  perf_counter tools: Give perf top inherit option
  perf_counter tools: Fix vmlinux symbol generation breakage
  perf_counter: Detect debugfs location
  perf_counter: Add tracepoint support to perf list, perf stat
  perf symbol: C++ demangling
  perf: avoid structure size confusion by using a fixed size
  perf_counter: Fix throttle/unthrottle event logging
  perf_counter: Improve perf stat and perf record option parsing
  perf_counter: PERF_SAMPLE_ID and inherited counters
  perf_counter: Plug more stack leaks
  perf: Fix stack data leak
  perf_counter: Remove unused variables
  perf_counter: Make call graph option consistent
  perf_counter: Add perf record option to log addresses
  perf_counter: Log vfork as a fork event
  perf_counter: Synthesize VDSO mmap event
  perf_counter: Make sure we dont leak kernel memory to userspace
  perf_counter tools: Fix index boundary check
  perf_counter: Fix the tracepoint channel to perfcounters
  perf_counter, x86: Extend perf_counter Pentium M support
  ...
2009-07-22 11:41:56 -07:00
Linus Torvalds
612e900c28 Merge branch 'core-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'core-fixes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  softirq: introduce tasklet_hrtimer infrastructure
2009-07-22 10:12:18 -07:00
Linus Torvalds
c57c374378 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:
  clocksource: Prevent NULL pointer dereference
  timer: Avoid reading uninitialized data
2009-07-22 10:11:47 -07:00
Linus Torvalds
5b26776bd9 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: Delegate irq affinity setting to the irq thread
2009-07-22 10:11:24 -07:00
Linus Torvalds
356d1b52eb 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 nr_uninterruptible accounting of frozen tasks really
  sched: fix load average accounting vs. cpu hotplug
  sched: Account for vruntime wrapping
2009-07-22 10:10:36 -07:00
Linus Torvalds
bb184d11ff Merge branch 'tj-block-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc
* 'tj-block-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc:
  virtio_blk: mark virtio_blk with __refdata to kill spurious section mismatch
  block: sysfs fix mismatched queue_var_{store,show} in 64bit kernel
  ataflop: adjust NULL test
  block: fix failfast merge testing in elv_rq_merge_ok()
  z2ram: Small cleanup for z2ram.c
2009-07-22 10:06:33 -07:00
Linus Torvalds
1f9758d4e7 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  fs/Kconfig: move nilfs2 out
2009-07-22 10:05:00 -07:00
Linus Torvalds
49ed657356 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-2.6:
  ide-tape: Don't leak kernel stack information
  ide: fix memory leak when flush command is issued
2009-07-22 09:50:18 -07:00
Linus Torvalds
402168cee1 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (37 commits)
  sky2: Avoid races in sky2_down
  drivers/net/mlx4: Adjust constant
  drivers/net: Move a dereference below a NULL test
  drivers/net: Move a dereference below a NULL test
  connector: maintainer/mail update.
  USB host CDC Phonet network interface driver
  macsonic, jazzsonic: fix oops on module unload
  macsonic: move probe function to .devinit.text
  can: switch carrier on if device was stopped while in bus-off state
  can: restart device even if dev_alloc_skb() fails
  can: sja1000: remove duplicated includes
  New device ID for sc92031 [1088:2031]
  3c589_cs: re-initialize the multicast in the tc589_reset
  Fix error return for setsockopt(SO_TIMESTAMPING)
  netxen: fix thermal check and shutdown
  netxen: fix deadlock on dev close
  netxen: fix context deletion sequence
  net: Micrel KS8851 SPI network driver
  tcp: Use correct peer adr when copying MD5 keys
  tcp: Fix MD5 signature checking on IPv4 mapped sockets
  ...
2009-07-22 09:49:58 -07:00
Linus Torvalds
12e8ffe35e 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: Fix a problem whereby a buggy server can oops the kernel
  NFSv4: Fix an NFSv4 mount regression
  NFSv4: Fix an Oops in nfs4_free_lock_state
2009-07-22 09:47:49 -07:00
Linus Torvalds
0d517fb1f3 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: ctxfi: Swapped SURROUND-SIDE channels on emu20k2
  ALSA: ca0106 - Fix the max capture buffer size
  ALSA: hda - Fix pin-setup for Sony VAIO with STAC9872 codecs
  ALSA: hda - Add quirk for Gateway T6834c laptop
  ALSA: OSS sequencer should be initialized after snd_seq_system_client_init
  ALSA: sound/isa: convert nested spin_lock_irqsave to spin_lock
  ALSA: hda_codec: Check for invalid zero connections
2009-07-22 09:32:12 -07:00
Linus Torvalds
1fd1f28536 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: Move dereferences below a NULL test
  HID: hiddev, fix lock imbalance
2009-07-22 09:30:07 -07:00
Arjan van de Ven
0dc3d523e8 perf: fix stack data leak
the "reserved" field was not initialized to zero, resulting in 4 bytes
of stack data leaking to userspace....

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-07-22 09:29:52 -07:00
Linus Torvalds
61fe087059 Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6
* 'linux-next' of git://git.infradead.org/ubi-2.6:
  UBI: fix bug in image sequence number handling
  UBI: gluebi: initialize ubi_num field
2009-07-22 09:26:13 -07:00
Linus Torvalds
71c4c8b7c3 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:
  Input: atkbd - add force relese key quirk for Soltech TA12
  Input: fix EVIOCGNAME/JSIOCGNAME regression
  Input: atkbd - add forced release keys quirk for FSC Amilo Pi 3525
  Input: pcspkr - switch driver to dev_pm_ops
  Input: xpad - don't resend successfully sent outgoing requests
  Input: wistron_btns - recognize Maxdata Pro 7000 notebooks
2009-07-22 09:25:31 -07:00
Mike Galbraith
0fdc7e67dd perf_counter tools: Give perf top inherit option
Currently, perf top -p only tracks the pid provided, which isn't very useful
for watching forky loads, so give it an inherit option.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1248165036.9795.10.camel@marge.simson.net>
2009-07-22 18:05:58 +02:00
Mike Galbraith
d20ff6bd6b perf_counter tools: Fix vmlinux symbol generation breakage
vmlinux meets the criteria for symbol adjustment, which breaks vmlinux generated symbols.
Fix this by exempting vmlinux.  This is a bit fragile in that someone could change the
kernel dso's name, but currently that name is also hardwired.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1248091298.18702.18.camel@marge.simson.net>
2009-07-22 18:05:58 +02:00
Jason Baron
5beeded123 perf_counter: Detect debugfs location
If "/sys/kernel/debug" is not a debugfs mount point, search for the debugfs
filesystem in /proc/mounts, but also allows the user to specify
'--debugfs-dir=blah' or set the environment variable: 'PERF_DEBUGFS_DIR'

Signed-off-by: Jason Baron <jbaron@redhat.com>
[ also made it probe "/debug" by default ]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090721181629.GA3094@redhat.com>
2009-07-22 18:05:57 +02:00
Jason Baron
f6bdafef2a perf_counter: Add tracepoint support to perf list, perf stat
Add support to 'perf list' and 'perf stat' for kernel tracepoints. The
implementation creates a 'for_each_subsystem' and 'for_each_event' for
easy iteration over the tracepoints.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <426129bf9fcc8ee63bb094cf736e7316a7dcd77a.1248190728.git.jbaron@redhat.com>
2009-07-22 18:05:57 +02:00
Arnaldo Carvalho de Melo
28ac909b49 perf symbol: C++ demangling
[acme@doppio ~]$ perf report -s comm,dso,symbol -C firefox -d /usr/lib64/xulrunner-1.9.1/libxul.so | grep :: | head
     2.21%  [.] nsDeque::Push(void*)
     1.78%  [.] GraphWalker::DoWalk(nsDeque&)
     1.30%  [.] GCGraphBuilder::AddNode(void*, nsCycleCollectionParticipant*)
     1.27%  [.] XPCWrappedNative::CallMethod(XPCCallContext&, XPCWrappedNative::CallMode)
     1.18%  [.] imgContainer::DrawFrameTo(gfxIImageFrame*, gfxIImageFrame*, nsRect&)
     1.13%  [.] nsDeque::PopFront()
     1.11%  [.] nsGlobalWindow::RunTimeout(nsTimeout*)
     0.97%  [.] nsXPConnect::Traverse(void*, nsCycleCollectionTraversalCallback&)
     0.95%  [.] nsJSEventListener::cycleCollection::Traverse(void*, nsCycleCollectionTraversalCallback&)
     0.95%  [.] nsCOMPtr_base::~nsCOMPtr_base()
[acme@doppio ~]$

Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Vegard Nossum <vegard.nossum@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Suggested-by: Clark Williams <williams@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090720171412.GB10410@ghostprotocols.net>
2009-07-22 18:05:57 +02:00
Arjan van de Ven
dfe5a50461 perf: avoid structure size confusion by using a fixed size
for some reason, this structure gets compiled as 36 bytes in some files
(the ones that alloacte it) but 40 bytes in others (the ones that use it).
The cause is an off_t type that gets a different size in different
compilation units for some yet-to-be-explained reason.

But the effect is disasterous; the size/offset members of the struct
are at different offsets, and result in mostly complete garbage.
The parser in perf is so robust that this all gets hidden, and after
skipping an certain amount of samples, it recovers.... so this bug
is not normally noticed.

.... except when you want every sample to be exact.

Fix this by just using an explicitly sized type.

Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4A655917.9080504@linux.intel.com>
2009-07-22 18:05:57 +02:00
Anton Blanchard
966ee4d6b8 perf_counter: Fix throttle/unthrottle event logging
Right now we only print PERF_EVENT_THROTTLE + 1 (ie PERF_EVENT_UNTHROTTLE).
Fix this to print both a throttle and unthrottle event.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090722130546.GE9029@kryten>
2009-07-22 18:05:56 +02:00
Anton Blanchard
a0541234f8 perf_counter: Improve perf stat and perf record option parsing
perf stat and perf record currently look for all options on the command
line. This can lead to some confusion:

# perf stat ls -l
  Error: unknown switch `l'

While we can work around this by adding '--' before the command, the git
option parsing code can stop at the first non option:

# perf stat ls -l
 Performance counter stats for 'ls -l':
....

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <20090722130412.GD9029@kryten>
2009-07-22 18:05:56 +02:00
Peter Zijlstra
7f453c24b9 perf_counter: PERF_SAMPLE_ID and inherited counters
Anton noted that for inherited counters the counter-id as provided by
PERF_SAMPLE_ID isn't mappable to the id found through PERF_RECORD_ID
because each inherited counter gets its own id.

His suggestion was to always return the parent counter id, since that
is the primary counter id as exposed. However, these inherited
counters have a unique identifier so that events like
PERF_EVENT_PERIOD and PERF_EVENT_THROTTLE can be specific about which
counter gets modified, which is important when trying to normalize the
sample streams.

This patch removes PERF_EVENT_PERIOD in favour of PERF_SAMPLE_PERIOD,
which is more useful anyway, since changing periods became a lot more
common than initially thought -- rendering PERF_EVENT_PERIOD the less
useful solution (also, PERF_SAMPLE_PERIOD reports the more accurate
value, since it reports the value used to trigger the overflow,
whereas PERF_EVENT_PERIOD simply reports the requested period changed,
which might only take effect on the next cycle).

This still leaves us PERF_EVENT_THROTTLE to consider, but since that
_should_ be a rare occurrence, and linking it to a primary id is the
most useful bit to diagnose the problem, we introduce a
PERF_SAMPLE_STREAM_ID, for those few cases where the full
reconstruction is important.

[Does change the ABI a little, but I see no other way out]

Suggested-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1248095846.15751.8781.camel@twins>
2009-07-22 18:05:56 +02:00
Peter Zijlstra
573402db02 perf_counter: Plug more stack leaks
Per example of Arjan's patch, I went through and found a few more.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
2009-07-22 18:05:55 +02:00