16 Jan, 2011
1 commit
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…linus' and 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/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:
rcu: avoid pointless blocked-task warnings
rcu: demote SRCU_SYNCHRONIZE_DELAY from kernel-parameter status
rtmutex: Fix comment about why new_owner can be NULL in wake_futex_pi()* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86, olpc: Add missing Kconfig dependencies
x86, mrst: Set correct APB timer IRQ affinity for secondary cpu
x86: tsc: Fix calibration refinement conditionals to avoid divide by zero
x86, ia64, acpi: Clean up x86-ism in drivers/acpi/numa.c* 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
timekeeping: Make local variables static
time: Rename misnamed minsec argument of clocks_calc_mult_shift()* 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
tracing: Remove syscall_exit_fields
tracing: Only process module tracepoints once
perf record: Add "nodelay" mode, disabled by default
perf sched: Fix list of events, dropping unsupported ':r' modifier
Revert "perf tools: Emit clearer message for sys_perf_event_open ENOENT return"
perf top: Fix annotate segv
perf evsel: Fix order of event list deletion
15 Jan, 2011
1 commit
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There is no need for syscall_exit_fields as the syscall
exit event class can already host the fields in its structure,
like most other trace events do by default. Use that
default behavior instead.Following this scheme, we don't need anymore to override the
get_fields() callback of the syscall exit event class either.Hence both syscall_exit_fields and syscall_get_exit_fields() can
be removed.Also changed some indentation to keep the following under 80
characters:".fields = LIST_HEAD_INIT(event_class_syscall_exit.fields),"
Acked-by: Frederic Weisbecker
Signed-off-by: Lai Jiangshan
LKML-Reference:
Signed-off-by: Steven Rostedt
14 Jan, 2011
2 commits
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* 'for-2.6.38/core' of git://git.kernel.dk/linux-2.6-block: (43 commits)
block: ensure that completion error gets properly traced
blktrace: add missing probe argument to block_bio_complete
block cfq: don't use atomic_t for cfq_group
block cfq: don't use atomic_t for cfq_queue
block: trace event block fix unassigned field
block: add internal hd part table references
block: fix accounting bug on cross partition merges
kref: add kref_test_and_get
bio-integrity: mark kintegrityd_wq highpri and CPU intensive
block: make kblockd_workqueue smarter
Revert "sd: implement sd_check_events()"
block: Clean up exit_io_context() source code.
Fix compile warnings due to missing removal of a 'ret' variable
fs/block: type signature of major_to_index(int) to major_to_index(unsigned)
block: convert !IS_ERR(p) && p to !IS_ERR_NOR_NULL(p)
cfq-iosched: don't check cfqg in choose_service_tree()
fs/splice: Pull buf->ops->confirm() from splice_from_pipe actors
cdrom: export cdrom_check_events()
sd: implement sd_check_events()
sr: implement sr_check_events()
... -
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (43 commits)
Documentation/trace/events.txt: Remove obsolete sched_signal_send.
writeback: fix global_dirty_limits comment runtime -> real-time
ppc: fix comment typo singal -> signal
drivers: fix comment typo diable -> disable.
m68k: fix comment typo diable -> disable.
wireless: comment typo fix diable -> disable.
media: comment typo fix diable -> disable.
remove doc for obsolete dynamic-printk kernel-parameter
remove extraneous 'is' from Documentation/iostats.txt
Fix spelling milisec -> ms in snd_ps3 module parameter description
Fix spelling mistakes in comments
Revert conflicting V4L changes
i7core_edac: fix typos in comments
mm/rmap.c: fix comment
sound, ca0106: Fix assignment to 'channel'.
hrtimer: fix a typo in comment
init/Kconfig: fix typo
anon_inodes: fix wrong function name in comment
fix comment typos concerning "consistent"
poll: fix a typo in comment
...Fix up trivial conflicts in:
- drivers/net/wireless/iwlwifi/iwl-core.c (moved to iwl-legacy.c)
- fs/ext4/ext4.hAlso fix missed 'diabled' typo in drivers/net/bnx2x/bnx2x.h while at it.
12 Jan, 2011
1 commit
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…/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: (28 commits)
perf session: Fix infinite loop in __perf_session__process_events
perf evsel: Support perf_evsel__open(cpus > 1 && threads > 1)
perf sched: Use PTHREAD_STACK_MIN to avoid pthread_attr_setstacksize() fail
perf tools: Emit clearer message for sys_perf_event_open ENOENT return
perf stat: better error message for unsupported events
perf sched: Fix allocation result check
perf, x86: P4 PMU - Fix unflagged overflows handling
dynamic debug: Fix build issue with older gcc
tracing: Fix TRACE_EVENT power tracepoint creation
tracing: Fix preempt count leak
tracepoint: Add __rcu annotation
tracing: remove duplicate null-pointer check in skb tracepoint
tracing/trivial: Add missing comma in TRACE_EVENT comment
tracing: Include module.h in define_trace.h
x86: Save rbp in pt_regs on irq entry
x86, dumpstack: Fix unused variable warning
x86, NMI: Clean-up default_do_nmi()
x86, NMI: Allow NMI reason io port (0x61) to be processed on any CPU
x86, NMI: Remove DIE_NMI_IPI
x86, NMI: Add priorities to handlers
...
10 Jan, 2011
1 commit
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We normally just use the BIO_UPTODATE flag to signal 0/-EIO. If
we have more information available, we should pass that along to
the trace output.Signed-off-by: Jens Axboe
08 Jan, 2011
2 commits
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DEFINE_TRACE should also exist when CONFIG_EVENT_TRACING=n. Otherwise, setting
only TRACEPOINTS=y is broken.Acked-by: Arjan van de Ven
Signed-off-by: Mathieu Desnoyers
LKML-Reference:
Signed-off-by: Steven Rostedt -
While running my ftrace stress test, this showed up:
BUG: sleeping function called from invalid context at mm/mmap.c:233
...
note: cat[3293] exited with preempt_count 1The bug was introduced by commit 91e86e560d0b3ce4c5fc64fd2bbb99f856a30a4e
("tracing: Fix recursive user stack trace")Cc:
Signed-off-by: Li Zefan
LKML-Reference:
Signed-off-by: Steven Rostedt
07 Jan, 2011
3 commits
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Function-scope statics are discouraged because they are
easily overlooked and can cause subtle bugs/races due to
their global (non-SMP safe) nature.Linus noticed that we did this for sched_param - at minimum
make the const.Suggested-by: Linus Torvalds
Signed-off-by: Peter Zijlstra
LKML-Reference: Message-ID:
Signed-off-by: Ingo Molnar -
blktrace.c block bio complete callback needs to gain a new argument to reflect
the newly added "error" tracepoint argument. This is needed to match the new
block_bio_complete TRACE_EVENT as of
commit de983a7bfcb7c020901ca6e2314cf55a4207ab5a.Signed-off-by: Mathieu Desnoyers
CC: Jeff Moyer
CC: Steven Rostedt
CC: Frederic Weisbecker
CC: Ingo Molnar
CC: Thomas Gleixner
CC: Li Zefan
Signed-off-by: Jens Axboe -
…/git/tip/linux-2.6-tip
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (30 commits)
sched: Change wait_for_completion_*_timeout() to return a signed long
sched, autogroup: Fix reference leak
sched, autogroup: Fix potential access to freed memory
sched: Remove redundant CONFIG_CGROUP_SCHED ifdef
sched: Fix interactivity bug by charging unaccounted run-time on entity re-weight
sched: Move periodic share updates to entity_tick()
printk: Use this_cpu_{read|write} api on printk_pending
sched: Make pushable_tasks CONFIG_SMP dependant
sched: Add 'autogroup' scheduling feature: automated per session task groups
sched: Fix unregister_fair_sched_group()
sched: Remove unused argument dest_cpu to migrate_task()
mutexes, sched: Introduce arch_mutex_cpu_relax()
sched: Add some clock info to sched_debug
cpu: Remove incorrect BUG_ON
cpu: Remove unused variable
sched: Fix UP build breakage
sched: Make task dump print all 15 chars of proc comm
sched: Update tg->shares after cpu.shares write
sched: Allow update_cfs_load() to update global load
sched: Implement demand based update_cfs_load()
...
05 Jan, 2011
1 commit
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Merge reason: Merge the final .37 tree.
Signed-off-by: Ingo Molnar
04 Jan, 2011
3 commits
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Add these new power trace events:
power:cpu_idle
power:cpu_frequency
power:machine_suspendThe old C-state/idle accounting events:
power:power_start
power:power_endHave now a replacement (but we are still keeping the old
tracepoints for compatibility):power:cpu_idle
and
power:power_frequencyis replaced with:
power:cpu_frequencypower:machine_suspend is newly introduced.
Jean Pihet has a patch integrated into the generic layer
(kernel/power/suspend.c) which will make use of it.the type= field got removed from both, it was never
used and the type is differed by the event type itself.perf timechart userspace tool gets adjusted in a separate patch.
Signed-off-by: Thomas Renninger
Signed-off-by: Ingo Molnar
Acked-by: Arjan van de Ven
Acked-by: Jean Pihet
Cc: Arnaldo Carvalho de Melo
Cc: Peter Zijlstra
Cc: Linus Torvalds
Cc: rjw@sisk.pl
LKML-Reference:
Signed-off-by: Ingo Molnar
LKML-Reference: -
power_frequency moved to drivers/cpufreq/cpufreq.c which has
to be compiled in, no need to export it.intel_idle can a be module though...
Signed-off-by: Thomas Renninger
Signed-off-by: Ingo Molnar
Acked-by: Jean Pihet
Cc: Jean Pihet
Cc: Arjan van de Ven
Cc: rjw@sisk.pl
LKML-Reference:
Signed-off-by: Ingo Molnar
LKML-Reference: -
Merge reason: pick up latest -rc.
Signed-off-by: Ingo Molnar
24 Dec, 2010
1 commit
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Fix two related problems in the event-copying loop of
ring_buffer_read_page.The loop condition for copying events is off-by-one.
"len" is the remaining space in the caller-supplied page.
"size" is the size of the next event (or two events).
If len == size, then there is just enough space for the next event.size was set to rb_event_ts_length, which may include the size of two
events if the first event is a time-extend, in order to assure time-
extends are kept together with the event after it. However,
rb_advance_reader always advances by one event. This would result in the
event after any time-extend being duplicated. Instead, get the size of
a single event for the memcpy, but use rb_event_ts_length for the loop
condition.Signed-off-by: David Sharp
LKML-Reference:
LKML-Reference:
Signed-off-by: Steven Rostedt
23 Dec, 2010
2 commits
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Conflicts:
MAINTAINERS
arch/arm/mach-omap2/pm24xx.c
drivers/scsi/bfa/bfa_fcpim.cNeeded to update to apply fixes for which the old branch was too
outdated. -
…stedt/linux-2.6-trace into perf/core
16 Dec, 2010
2 commits
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Merge reason: We want to apply a dependent patch.
Signed-off-by: Ingo Molnar
-
…rostedt/linux-2.6-trace into perf/urgent
09 Dec, 2010
1 commit
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Merge reason: we want to queue up dependent cleanup
Signed-off-by: Ingo Molnar
01 Dec, 2010
1 commit
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The file_ops struct for the "trace" special file defined llseek as seq_lseek().
However, if the file was opened for writing only, seq_open() was not called,
and the seek would dereference a null pointer, file->private_data.This patch introduces a new wrapper for seq_lseek() which checks if the file
descriptor is opened for reading first. If not, it does nothing.Cc:
Signed-off-by: Slava Pestov
LKML-Reference:
Signed-off-by: Steven Rostedt
27 Nov, 2010
1 commit
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…/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 symbols: Remove incorrect open-coded container_of()
perf record: Handle restrictive permissions in /proc/{kallsyms,modules}
x86/kprobes: Prevent kprobes to probe on save_args()
irq_work: Drop cmpxchg() result
perf: Fix owner-list vs exit
x86, hw_nmi: Move backtrace_mask declaration under ARCH_HAS_NMI_WATCHDOG
tracing: Fix recursive user stack trace
perf,hw_breakpoint: Initialize hardware api earlier
x86: Ignore trap bits on single step exceptions
tracing: Force arch_local_irq_* notrace for paravirt
tracing: Fix module use of trace_bprintk()
26 Nov, 2010
2 commits
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Merge reason: Pick up latest fixes.
Signed-off-by: Ingo Molnar
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Merge reason: Pick up latest fixes.
Signed-off-by: Ingo Molnar
19 Nov, 2010
2 commits
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Currently we have in something like the sched_switch event:
field:char prev_comm[TASK_COMM_LEN]; offset:12; size:16; signed:1;
When a userspace tool such as perf tries to parse this, the
TASK_COMM_LEN is meaningless. This is done because the TRACE_EVENT() macro
simply uses a #len to show the string of the length. When the length is
an enum, we get a string that means nothing for tools.By adding a static buffer and a mutex to protect it, we can store the
string into that buffer with snprintf and show the actual number.
Now we get:field:char prev_comm[16]; offset:12; size:16; signed:1;
Something much more useful.
Signed-off-by: Steven Rostedt
-
…ic/random-tracing into perf/core
18 Nov, 2010
4 commits
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This adds a new trace event internal flag that allows them to be
used in perf by non privileged users in case of task bound tracing.This is desired for syscalls tracepoint because they don't leak
global system informations, like some other tracepoints.Signed-off-by: Frederic Weisbecker
Cc: Ingo Molnar
Cc: Peter Zijlstra
Cc: Arnaldo Carvalho de Melo
Cc: Thomas Gleixner
Cc: Steven Rostedt
Cc: Li Zefan
Cc: Jason Baron -
Merge reason: Move to a .37-rc base.
Signed-off-by: Ingo Molnar
-
…t/rostedt/linux-2.6-trace into perf/urgent
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The big kernel lock has been removed from all these files at some point,
leaving only the #include.Remove this too as a cleanup.
Signed-off-by: Arnd Bergmann
Signed-off-by: Linus Torvalds
17 Nov, 2010
1 commit
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* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] kprobes: Fix the return address of multiple kretprobes
[S390] kprobes: disable interrupts throughout
[S390] ftrace: build without frame pointers on s390
[S390] mm: add devmem_is_allowed() for STRICT_DEVMEM checking
[S390] vmlogrdr: purge after recording is switched off
[S390] cio: fix incorrect ccw_device_init_count
[S390] tape: add medium state notifications
[S390] fix get_user_pages_fast
16 Nov, 2010
1 commit
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Signed-off-by: Kiyoshi Ueda
Signed-off-by: Jun'ichi Nomura
Signed-off-by: Mike Snitzer
Signed-off-by: Jens Axboe
13 Nov, 2010
1 commit
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The user stack trace can fault when examining the trace. Which
would call the do_page_fault handler, which would trace again,
which would do the user stack trace, which would fault and call
do_page_fault again ...Thus this is causing a recursive bug. We need to have a recursion
detector here.[ Resubmitted by Jiri Olsa ]
[ Eric Dumazet recommended using __this_cpu_* instead of __get_cpu_* ]
Cc: Eric Dumazet
Signed-off-by: Jiri Olsa
LKML-Reference:
Signed-off-by: Steven Rostedt
10 Nov, 2010
2 commits
-
REQ_HARDBARRIER is dead now, so remove the leftovers. What's left
at this point is:- various checks inside the block layer.
- sanity checks in bio based drivers.
- now unused bio_empty_barrier helper.
- Xen blockfront use of BLKIF_OP_WRITE_BARRIER - it's dead for a while,
but Xen really needs to sort out it's barrier situaton.
- setting of ordered tags in uas - dead code copied from old scsi
drivers.
- scsi different retry for barriers - it's dead and should have been
removed when flushes were converted to FS requests.
- blktrace handling of barriers - removed. Someone who knows blktrace
better should add support for REQ_FLUSH and REQ_FUA, though.Signed-off-by: Christoph Hellwig
Signed-off-by: Jens Axboe -
s390 doesn't need FRAME_POINTERS in order to have a working function tracer.
We don't need frame pointers in order to get strack traces since we always
have valid backchains by using the -mkernel-backchain gcc option.Signed-off-by: Heiko Carstens
Signed-off-by: Martin Schwidefsky
02 Nov, 2010
1 commit
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"gadget", "through", "command", "maintain", "maintain", "controller", "address",
"between", "initiali[zs]e", "instead", "function", "select", "already",
"equal", "access", "management", "hierarchy", "registration", "interest",
"relative", "memory", "offset", "already",Signed-off-by: Uwe Kleine-König
Signed-off-by: Jiri Kosina
28 Oct, 2010
2 commits
-
…/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: (50 commits)
perf python scripting: Add futex-contention script
perf python scripting: Fixup cut'n'paste error in sctop script
perf scripting: Shut up 'perf record' final status
perf record: Remove newline character from perror() argument
perf python scripting: Support fedora 11 (audit 1.7.17)
perf python scripting: Improve the syscalls-by-pid script
perf python scripting: print the syscall name on sctop
perf python scripting: Improve the syscalls-counts script
perf python scripting: Improve the failed-syscalls-by-pid script
kprobes: Remove redundant text_mutex lock in optimize
x86/oprofile: Fix uninitialized variable use in debug printk
tracing: Fix 'faild' -> 'failed' typo
perf probe: Fix format specified for Dwarf_Off parameter
perf trace: Fix detection of script extension
perf trace: Use $PERF_EXEC_PATH in canned report scripts
perf tools: Document event modifiers
perf tools: Remove direct slang.h include
perf_events: Fix for transaction recovery in group_sched_in()
perf_events: Revert: Fix transaction recovery in group_sched_in()
perf, x86: Use NUMA aware allocations for PEBS/BTS/DS allocations
... -
Signed-off-by: Zimny Lech
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
26 Oct, 2010
1 commit
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…l/git/rostedt/linux-2.6-trace into perf/urgent