08 Feb, 2011
4 commits
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Some architectures have unusual symbol names and the generic code to
match the symbol name with the function name for the syscall metadata
will fail. For example, symbols on PPC64 start with a period and the
generic code will fail to match them.This patch moves the match logic out into a separate function which an
arch can override by defining ARCH_HAS_SYSCALL_MATCH_SYM_NAME in
asm/ftrace.h and implementing arch_syscall_match_sym_name.Signed-off-by: Ian Munsie
LKML-Reference:
Signed-off-by: Steven Rostedt -
Some architectures use non-trivial system call tables and will not work
with the generic arch_syscall_addr code. For example, PowerPC64 uses a
table of twin long longs.This patch makes the generic arch_syscall_addr weak to allow
architectures with non-trivial system call tables to override it.Signed-off-by: Ian Munsie
LKML-Reference:
Signed-off-by: Steven Rostedt -
With the ftrace events now checking if the syscall_nr is valid upon
initialisation it should no longer be possible to register or unregister
a syscall event without a valid syscall_nr since they should not be
created. This adds a WARN_ON_ONCE in the register and unregister
functions to locate potential regressions in the future.Signed-off-by: Ian Munsie
LKML-Reference:
Signed-off-by: Steven Rostedt -
FTRACE_SYSCALLS would create events for each and every system call, even
if it had failed to map the system call's name with it's number. This
resulted in a number of events being created that would not behave as
expected.This could happen, for example, on architectures who's symbol names are
unusual and will not match the system call name. It could also happen
with system calls which were mapped to sys_ni_syscall.This patch changes the default system call number in the metadata to -1.
If the system call name from the metadata is not successfully mapped to
a system call number during boot, than the event initialisation routine
will now return an error, preventing the event from being created.Signed-off-by: Ian Munsie
LKML-Reference:
Signed-off-by: Steven Rostedt
07 Feb, 2011
9 commits
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…inux-2.6 into perf/core
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Merge reason: Pick up perf fixes that are now upstream
Signed-off-by: Ingo Molnar
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* 'ixp4xx' of git://git.kernel.org/pub/scm/linux/kernel/git/chris/linux-2.6:
arm/ixp4xx: Rename FREQ macro to avoid collisions
IXP4xx: Fix qmgr_release_queue() flushing unexpected queue entries. -
…el/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:
lockdep, timer: Fix del_timer_sync() annotation
RTC: Prevents a division by zero in kernel code. -
…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:
m32r: Fixup last __do_IRQ leftover
genirq: Add missing status flags to modification mask -
…/git/tip/linux-2.6-tip
* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
perf stat: Fix aggreate counter reading accounting
tracing: Replace syscall_meta_data struct array with pointer array
tracepoints: Fix section alignment using pointer array
tracing: Replace trace_event struct array with pointer array -
…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:
x86-32: Make sure the stack is set up before we use it
x86, mtrr: Avoid MTRR reprogramming on BP during boot on UP platforms
x86, nx: Don't force pages RW when setting NX bits -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: use linux/io.h to fix compile warnings
ALSA: hda - Fix memory leaks in conexant jack arrays
ASoC: CX20442: fix NULL pointer dereference
ASoC: Amstrad Delta: fix const related build error
ALSA: oxygen: fix output routing on Xonar DG
sound: silent echo'ed messages in Makefile
ASoC: Fix mask/val_mask confusion snd_soc_dapm_put_volsw()
ASoC: DaVinci: fix kernel panic due to uninitialized platform_data
ALSA: HDA: Fix microphone(s) on Lenovo Edge 13
ASoC: Fix module refcount for auxiliary devices
ALSA: HDA: cxt5066 - Use asus model for Asus U50F, select correct SPDIF output
ALSA: HDA: Add a new model "asus" for Conexant 5066/205xx
ALSA: HDA: Refactor some redundant code for Conexant 5066/205xx -
Next step: Live TUI annotation in perf top, just press enter on a symbol
line.Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Cc: Tom Zanussi
LKML-Reference:
Signed-off-by: Arnaldo Carvalho de Melo
06 Feb, 2011
6 commits
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FREQ is a ridiculously short name for a platform-specific macro in a
generic header, and it now conflicts with an enumeration in the
gspca/ov519 driver.Also delete conditional reference to ixp4xx_get_board_tick_rate()
which is not defined anywhere.Signed-off-by: Ben Hutchings
Signed-off-by: Krzysztof Hałasa -
Queues should be empty when released, if not, there is a safety valve.
Make sure the queue is usable after it triggers.Signed-off-by: Krzysztof Hałasa
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Because in 'perf top' we'll need to parse just once and then, as samples
come, render multiple times with evolving counter values.Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Cc: Tom Zanussi
LKML-Reference:
Signed-off-by: Arnaldo Carvalho de Melo -
Somehow I managed to miss the last __do_IRQ caller when I cleanup the
remaining users. m32r is fully converted to the generic irq layer, but
I managed to not commit the conversion of __do_IRQ() to
generic_handle_irq() after compile testing the quilt series :(Pointed-out-by: Christoph Hellwig
Signed-off-by: Thomas Gleixner
Cc: Hirokazu Takata
Cc: Paul Mundt -
Max line# that should be printed, minimum percentage filter, just like
'perf top', alas, due to it :-)Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Cc: Tom Zanussi
LKML-Reference:
Signed-off-by: Arnaldo Carvalho de Melo
05 Feb, 2011
15 commits
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The mask which filters out the valid bits which can be set via
irq_modify_status() is missing IRQ_NO_BALANCING, which breaks UV.Add IRQ_PER_CPU as well to avoid another one line patch for 39.
Signed-off-by: Thomas Gleixner
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The perf annotate tool continues aggregating everything on just one
histograms, but to support the top model add support for one histogram
perf evsel in the evlist.Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Cc: Tom Zanussi
LKML-Reference:
Signed-off-by: Arnaldo Carvalho de Melo -
They will be used by perf top, so that we have just one set of routines
to do annotation.Rename "struct sym_priv" to "struct annotation", etc, to clarify this
code a bit.Rename "struct sym_ext" to "struct source_line", to give it a meaningful
name, that clarifies that it is a the result of an addr2line call, that
is sorted by percentage one particular source code line appeared in the
annotation.And since we're moving things around also rename 'sym_hist->ip' to
'sym_hist->addr' as we want to do data structure annotation at some
point.Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Cc: Tom Zanussi
LKML-Reference:
Signed-off-by: Arnaldo Carvalho de Melo -
From the sym_entry struct, struct symbol already has this field.
Cc: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Mike Galbraith
Cc: Paul Mackerras
Cc: Peter Zijlstra
Cc: Stephane Eranian
Cc: Tom Zanussi
LKML-Reference:
Signed-off-by: Arnaldo Carvalho de Melo -
Since checkin ebba638ae723d8a8fc2f7abce5ec18b688b791d7 we call
verify_cpu even in 32-bit mode. Unfortunately, calling a function
means using the stack, and the stack pointer was not initialized in
the 32-bit setup code! This code initializes the stack pointer, and
simplifies the interface slightly since it is easier to rely on just a
pointer value rather than a descriptor; we need to have different
values for the segment register anyway.This retains start_stack as a virtual address, even though a physical
address would be more convenient for 32 bits; the 64-bit code wants
the other way around...Reported-by: Matthieu Castet
LKML-Reference:
Tested-by: Kees Cook
Signed-off-by: H. Peter Anvin -
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (68 commits)
net: can: janz-ican3: world-writable sysfs termination file
net: can: at91_can: world-writable sysfs files
MAINTAINERS: update email ids of the be2net driver maintainers.
bridge: Don't put partly initialized fdb into hash
r8169: prevent RxFIFO induced loops in the irq handler.
r8169: RxFIFO overflow oddities with 8168 chipsets.
r8169: use RxFIFO overflow workaround for 8168c chipset.
include/net/genetlink.h: Allow genlmsg_cancel to accept a NULL argument
net: Provide compat support for SIOCGETMIFCNT_IN6 and SIOCGETSGCNT_IN6.
net: Support compat SIOCGETVIFCNT ioctl in ipv4.
net: Fix bug in compat SIOCGETSGCNT handling.
niu: Fix races between up/down and get_stats.
tcp_ecn is an integer not a boolean
atl1c: Add missing PCI device ID
s390: Fix possibly wrong size in strncmp (smsgiucv)
s390: Fix wrong size in memcmp (netiucv)
qeth: allow OSA CHPARM change in suspend state
qeth: allow HiperSockets framesize change in suspend
qeth: add more strict MTU checking
qeth: show new mac-address if its setting fails
... -
Don't allow everybody to set terminator via sysfs.
Signed-off-by: Vasiliy Kulikov
Signed-off-by: David S. Miller -
Don't allow everybody to write to mb0_id file.
Signed-off-by: Vasiliy Kulikov
Acked-by: Kurt Van Dijck
Signed-off-by: David S. Miller -
Signed-off-by: Ajit Khaparde
Signed-off-by: David S. Miller -
The fdb_create() puts a new fdb into hash with only addr set. This is
not good, since there are callers, that search the hash w/o the lock
and access all the other its fields.Applies to current netdev tree.
Signed-off-by: Pavel Emelyanov
Signed-off-by: David S. Miller -
In get_empty_filp() since 2.6.29, file_free(f) is called with f->f_cred == NULL
when security_file_alloc() returned an error. As a result, kernel will panic()
due to put_cred(NULL) call within RCU callback.Fix this bug by assigning f->f_cred before calling security_file_alloc().
Signed-off-by: Tetsuo Handa
Signed-off-by: David Howells
Signed-off-by: Linus Torvalds -
…t/rostedt/linux-2.6-trace into perf/urgent
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* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (27 commits)
gpu/stub: fix acpi_video build error, fix stub kconfig dependencies
drm/radeon/kms: dynamically allocate power state space
drm/radeon/kms: fix s/r issues with bios scratch regs
agp: ensure GART has an address before enabling it
Revert "agp: AMD AGP is used on UP1100 & UP1500 alpha boxen"
amd-k7-agp: remove non-x86 code
drm/radeon/kms/evergreen: always set certain VGT regs at CP init
drm/radeon/kms: add updated ib_execute function for evergreen
drm/radeon: remove 0x4243 pci id
drm/radeon/kms: Enable new pll calculation for avivo+ asics
drm/radeon/kms: add new pll algo for avivo asics
drm/radeon/kms: add pll debugging output
drm/radeon/kms: switch back to min->max pll post divider iteration
drm/radeon/kms: rv6xx+ thermal sensor fixes
drm/nv50: fix display on 0x50
drm/nouveau: correctly pair hwmon_init and hwmon_fini
drm/i915: Only bind to function 0 of the PCI device
drm/i915: Suppress spurious vblank interrupts
drm: Avoid leak of adjusted mode along quick set_mode paths
drm: Simplify and defend later checks when disabling a crtc
... -
In drm_crtc_helper_set_config, instead of always forcing all outputs
to DRM_MODE_DPMS_ON, only set them if the CRTC is actually getting a
mode set, as any mode set will turn all outputs on.This fixes https://lkml.org/lkml/2011/1/24/457
Signed-off-by: Keith Packard
Cc: stable@kernel.org (2.6.37)
Reported-and-tested-by: Carlos R. Mafra
Tested-by: Takashi Iwai
Signed-off-by: Linus Torvalds
04 Feb, 2011
6 commits
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While the RxFIFO interruption is masked for most 8168, nothing prevents
it to appear in the irq status word. This is no excuse to crash.Signed-off-by: Francois Romieu
Cc: Ivan Vecera
Cc: Hayes -
Some experiment-based action to prevent my 8168 chipsets locking-up hard
in the irq handler under load (pktgen ~1Mpps). Apparently a reset is not
always mandatory (is it at all ?).- RTL_GIGA_MAC_VER_12
- RTL_GIGA_MAC_VER_25
Missed ~55% packets. Note:
- this is an old SiS 965L motherboard
- the 8168 chipset emits (lots of) control frames towards the sender- RTL_GIGA_MAC_VER_26
The chipset does not go into a frenzy of mac control pause when it
crashes yet but it can still be crashed. It needs more work.Signed-off-by: Francois Romieu
Cc: Ivan Vecera
Cc: Hayes -
I found that one of the 8168c chipsets (concretely XID 1c4000c0) starts
generating RxFIFO overflow errors. The result is an infinite loop in
interrupt handler as the RxFIFOOver is handled only for ...MAC_VER_11.
With the workaround everything goes fine.Signed-off-by: Ivan Vecera
Acked-by: Francois Romieu
Cc: Hayes -
Calling local_bh_enable() will want to actually start processing
softirqs, which isn't a good idea since this can get called with IRQs
disabled.Cure this by using _local_bh_enable() which doesn't start processing
softirqs, and use raw_local_irq_save() to avoid any softirqs from
happening without letting lockdep think IRQs are in fact disabled.Reported-by: Nick Bowler
Signed-off-by: Peter Zijlstra
Reviewed-by: Yong Zhang
LKML-Reference:
Signed-off-by: Thomas Gleixner -
nlmsg_cancel can accept NULL as its second argument, so for similarity,
this patch extends genlmsg_cancel to be able to accept a NULL second
argument as well.Signed-off-by: Julia Lawall
Signed-off-by: David S. Miller -
The comments under "config STUB_POULSBO" are close to correct,
but they are not being followed. This patch updates them to reflect
the requirements for THERMAL.This build error is caused by STUB_POULSBO selecting ACPI_VIDEO
when ACPI_VIDEO's config requirements are not met.ERROR: "thermal_cooling_device_register" [drivers/acpi/video.ko] undefined!
ERROR: "thermal_cooling_device_unregister" [drivers/acpi/video.ko] undefined!Signed-off-by: Randy Dunlap
Tested-by: Ingo Molnar
Signed-off-by: Dave Airlie
