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2010-09-22jump label: Convert dynamic debug to use jump labelsJason Baron
Convert the 'dynamic debug' infrastructure to use jump labels. Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <b77627358cea3e27d7be4386f45f66219afb8452.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-22jump label: Tracepoint support for jump labelsJason Baron
Make use of the jump label infrastructure for tracepoints. Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <a9ba2056e2c9cf332c3c300b577463ce66ff23a8.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-22jump label: Add jump_label_text_reserved() to reserve jump pointsJason Baron
Add a jump_label_text_reserved(void *start, void *end), so that other pieces of code that want to modify kernel text, can first verify that jump label has not reserved the instruction. Acked-by: Masami Hiramatsu <mhiramat@redhat.com> Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <06236663a3a7b1c1f13576bb9eccb6d9c17b7bfe.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-22jump label: Initialize workqueue tracepoints *before* they are registeredJason Baron
Initialize the workqueue data structures *before* they are registered so that they are ready for callbacks. Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <e3a3383fc370ac7086625bebe89d9480d7caf372.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-22jump label: Base patch for jump labelJason Baron
base patch to implement 'jump labeling'. Based on a new 'asm goto' inline assembly gcc mechanism, we can now branch to labels from an 'asm goto' statment. This allows us to create a 'no-op' fastpath, which can subsequently be patched with a jump to the slowpath code. This is useful for code which might be rarely used, but which we'd like to be able to call, if needed. Tracepoints are the current usecase that these are being implemented for. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <ee8b3595967989fdaf84e698dc7447d315ce972a.1284733808.git.jbaron@redhat.com> [ cleaned up some formating ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-20jump label: Make text_poke_early() globally visibleJason Baron
Make text_poke_early available outside of alternative.c. The jump label patchset wants to make use of it in order to set up the optimal no-op sequences at run-time. Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <04cfddf2ba77bcabfc3e524f1849d871d6a1cf9d.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-20jump label: Make dynamic no-op selection available outside of ftraceJason Baron
Move Steve's code for finding the best 5-byte no-op from ftrace.c to alternative.c. The idea is that other consumers (in this case jump label) want to make use of that code. Signed-off-by: Jason Baron <jbaron@redhat.com> LKML-Reference: <96259ae74172dcac99c0020c249743c523a92e18.1284733808.git.jbaron@redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-17perf: Undo the per cpu-context timer stuffPeter Zijlstra
Revert the timer per cpu-context timers because of unfortunate nohz interaction. Fixing that would have been somewhat ugly, so go back to driving things from the regular tick. Provide a jiffies interval feature for people who want slower rotations. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Yinghai Lu <yinghai@kernel.org> LKML-Reference: <20100917093009.519845633@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-17perf: Fix perf_event_exit_cpu_context()Peter Zijlstra
Use the right cpu-context.. spotted by preempt warning on hot-unplug Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Robert Richter <robert.richter@amd.com> LKML-Reference: <20100917093009.461794357@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-17perf: Complete software pmu groupingPeter Zijlstra
Aside from allowing software events into a !software group, allow adding !software events to pure software groups. Once we've moved the software group and attached the first !software event, the group will no longer be a pure software group and hence no longer be eligible for movement, at which point the straight ctx comparison is correct again. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Robert Richter <robert.richter@amd.com> Cc: Paul Mackerras <paulus@samba.org> LKML-Reference: <20100917093009.410784731@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-17perf_events: Fix broken event groupingStephane Eranian
Events were not grouped anymore. The reason was that in perf_event_open(), the field event->group_leader was initialized before the function looked up the group_fd to find the event leader. This patch fixes this by reordering the code correctly. Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> LKML-Reference: <20100917093009.360420946@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-17tracing, perf: Add more power related eventsJean Pihet
This patch adds new generic events for dynamic power management tracing: - clock events class: used for clock enable/disable and for clock rate change, - power_domain events class: used for power domains transitions. The OMAP architecture will be using the new events for PM debugging, however the new events are made generic enough to be used by all platforms. Signed-off-by: Jean Pihet <j-pihet@ti.com> Acked-by: Thomas Renninger <trenn@suse.de> Cc: discuss@lesswatts.org Cc: linux-pm@lists.linux-foundation.org Cc: Thomas Renninger <trenn@suse.de> Cc: Arjan van de Ven <arjan@linux.intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Len Brown <len.brown@intel.com> Cc: Kevin Hilman <khilman@deeprootsystems.com> LKML-Reference: <AANLkTinUmbSUUuxUzc8++pcb9gd1CZFdyTQFrveTBXyV@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15kprobes: Add sparse context annotationsNamhyung Kim
This removes following warnings when build with C=1 warning: context imbalance in 'kretprobe_hash_lock' - wrong count at exit warning: context imbalance in 'kretprobe_table_lock' - wrong count at exit warning: context imbalance in 'kretprobe_hash_unlock' - unexpected unlock warning: context imbalance in 'kretprobe_table_unlock' - unexpected unlock Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> LKML-Reference: <1284512670-2369-6-git-send-email-namhyung@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15kprobes: Remove __dummy_bufNamhyung Kim
Remove __dummy_buf which is needed for kallsyms_lookup only. use kallsysm_lookup_size_offset instead. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> LKML-Reference: <1284512670-2369-5-git-send-email-namhyung@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15kprobes: Make functions staticNamhyung Kim
Make following (internal) functions static to make sparse happier :-) * get_optimized_kprobe: only called from static functions * kretprobe_table_unlock: _lock function is static * kprobes_optinsn_template_holder: never called but holding asm code Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> LKML-Reference: <1284512670-2369-4-git-send-email-namhyung@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15kprobes: Verify jprobe entry pointNamhyung Kim
Verify jprobe's entry point is a function entry point using kallsyms' offset value. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> LKML-Reference: <1284512670-2369-3-git-send-email-namhyung@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15kprobes: Remove redundant address checkNamhyung Kim
Remove call to kernel_text_address() in register_jprobes() because it is called right after in register_kprobe(). Signed-off-by: Namhyung Kim <namhyung@gmail.com> Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> LKML-Reference: <1284512670-2369-2-git-send-email-namhyung@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15perf events: Clean up pid passingMatt Helsley
The kernel perf event creation path shouldn't use find_task_by_vpid() because a vpid exists in a specific namespace. find_task_by_vpid() uses current's pid namespace which isn't always the correct namespace to use for the vpid in all the places perf_event_create_kernel_counter() (and thus find_get_context()) is called. The goal is to clean up pid namespace handling and prevent bugs like: https://bugzilla.kernel.org/show_bug.cgi?id=17281 Instead of using pids switch find_get_context() to use task struct pointers directly. The syscall is responsible for resolving the pid to a task struct. This moves the pid namespace resolution into the syscall much like every other syscall that takes pid parameters. Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robin Green <greenrd@greenrd.org> Cc: Prasad <prasad@linux.vnet.ibm.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> LKML-Reference: <a134e5e392ab0204961fd1a62c84a222bf5874a9.1284407763.git.matthltc@us.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15perf events: Split out task search into helperMatt Helsley
Split out the code which searches for non-exiting tasks into its own helper. Creating this helper not only makes the code slightly more readable it prepares to move the search out of find_get_context() in a subsequent commit. Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robin Green <greenrd@greenrd.org> Cc: Prasad <prasad@linux.vnet.ibm.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> LKML-Reference: <561205417b450b8a4bf7488374541d64b4690431.1284407762.git.matthltc@us.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15hw breakpoints: Fix pid namespace bugMatt Helsley
Hardware breakpoints can't be registered within pid namespaces because tsk->pid is passed rather than the pid in the current namespace. (See https://bugzilla.kernel.org/show_bug.cgi?id=17281 ) This is a quick fix demonstrating the problem but is not the best method of solving the problem since passing pids internally is not the best way to avoid pid namespace bugs. Subsequent patches will show a better solution. Much thanks to Frederic Weisbecker <fweisbec@gmail.com> for doing the bulk of the work finding this bug. Signed-off-by: Matt Helsley <matthltc@us.ibm.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robin Green <greenrd@greenrd.org> Cc: Prasad <prasad@linux.vnet.ibm.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Will Deacon <will.deacon@arm.com> Cc: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> LKML-Reference: <f63454af09fb1915717251570423eb9ddd338340.1284407762.git.matthltc@us.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15perf, sh: Fix patch merge foul-upMatt Fleming
3f6da390 ("perf: Rework and fix the arch CPU-hotplug hooks") introduced this breakage. sh_pmu_setup() is missing an opening curly brace. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <20100913191729.GA6440@console-pimps.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15alpha: Fix HW performance counters to be stopped properlyMichael Cree
Also fix a few compile errors due to undefined and duplicated variables. Signed-off-by: Michael Cree <mcree@orcon.net.nz> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <1284269844-23251-1-git-send-email-mcree@orcon.net.nz> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15watchdog: Avoid kernel crash when disabling watchdogStephane Eranian
In case you boot with the watchdog disabled, i.e., nowatchdog, then, if you try to disable it via /proc/sys/kernel/watchdog, you get a kernel crash. The reason is that you are trying to cancel a hrtimer which has never been initialized. This patch fixes this by skipping execution of watchdog_disable_all_cpus() when the watchdog is marked disabled from boot. Signed-off-by: Stephane Eranian <eranian@google.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <4c8f7a23.cae9d80a.2c11.0bb4@mx.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-15Merge branch 'tip/perf/core' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core
2010-09-15tracing: Remove leftover FTRACE_ENABLE/DISABLE_MCOUNT enumsSteven Rostedt
The enums for FTRACE_ENABLE_MCOUNT and FTRACE_DISABLE_MCOUNT were used as commands to ftrace_run_update_code(). But these commands were used by the old nasty ftrace daemon that has long been slain. This is a clean up patch to remove the references to these enums and simplify the code a little. Reported-by: Wu Zhangjin <wuzhangjin@gmail.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-15tracing: Do not trace in irq when funcgraph-irq option is zeroSteven Rostedt
When the function graph tracer funcgraph-irq option is zero, disable tracing in IRQs. This makes the option have two effects. 1) When reading the trace file, do not display the functions that happen in interrupt context (when detected) 2) [*new*] When recording a trace, skip those that are detected to be in interrupt by the 'in_irq()' function Note, in_irq() is updated at irq_enter() and irq_exit(). There are still functions that are recorded by the function graph tracer that is in interrupt context but outside the irq_enter/exit() routines. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-15tracing: Add funcgraph-irq option for function graph tracer.Jiri Olsa
It's handy to be able to disable the irq related output and not to have to jump over each irq related code, when you have no interrest in it. The option is by default enabled, so there's no change to current behaviour. It affects only the final output, so all the irq related data stay in the ring buffer. Signed-off-by: Jiri Olsa <jolsa@redhat.com> LKML-Reference: <20100907145344.GC1912@jolsa.brq.redhat.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-14tracing: Fix reading of set_ftrace_filter across listsSteven Rostedt
If we do: # cd /sys/kernel/debug # echo 'do_IRQ:traceon schedule:traceon sys_write:traceon' > \ set_ftrace_filter # cat set_ftrace_filter We get the following output: #### all functions enabled #### sys_write:traceon:unlimited schedule:traceon:unlimited do_IRQ:traceon:unlimited This outputs two lists. One is the fact that all functions are currently enabled for function tracing, the other has three probed functions, which happen to have 'traceon' as their commands. Currently, when reading the first list (functions enabled) the seq_file code will receive a "NULL" from the t_next() function causing it to exit early. This makes "read()" from userspace stop reading the code at this boarder. Although read is allowed to do this, some (broken) applications might consider this an end of file and stop early. This patch adds the start of the second list to t_next() when it finishes the first list. It is a simple change and gives the set_ftrace_filter file nicer reading ability. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-14tracing: Keep track of set_ftrace_filter position and allow lseek againSteven Rostedt
This patch keeps track of the index within the elements of set_ftrace_filter and if the position goes backwards, it nicely resets and starts from the beginning again. This allows for lseek and pread to work properly now. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-14tracing: Replace typecasted void pointer in set_ftrace_filter codeSteven Rostedt
The set_ftrace_filter uses seq_file and reads from two lists. The pointer returned by t_next() can either be of type struct dyn_ftrace or struct ftrace_func_probe. If there is a bug (there was one) the wrong pointer may be used and the reference can cause an oops. This patch makes t_next() and friends only return the iterator structure which now has a pointer of type struct dyn_ftrace and struct ftrace_func_probe. The t_show() can now test if the pointer is NULL or not and if the pointer exists, it is guaranteed to be of the correct type. Now if there's a bug, only wrong data will be shown but not an oops. Cc: Chris Wright <chrisw@sous-sol.org> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-14tracing: Do not reset *pos in set_ftrace_filterSteven Rostedt
After the filtered functions are read, the probed functions are read from the hash in set_ftrace_filter. When the hashed probed functions are read, the *pos passed in is reset. Instead of modifying the pos given to the read function, just record the pos where the filtered functions ended and subtract from that. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-09-13Merge branch 'sched/urgent' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'sched/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: Improve latencies under load by decreasing minimum scheduling granularity
2010-09-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k,m68knommu: Wire up fanotify_init, fanotify_mark, and prlimit64
2010-09-13Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] fix siglock Quoth Tony: "I committed the fix for this last week prior to your -rc4 announcement reminding us to give proper "Reported-by:" credit. This one should have had: Reported-by: Tony Ernst <tee@sgi.com> and also Much-useful-investigation-and-tracing-by: Hedi Berriche <hedi@sgi.com> Much-useful-investigation-and-tracing-by: Petr Tesarik <ptesarik@novell.com>"
2010-09-13Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: prevent possible memory corruption in cifs_demultiplex_thread cifs: eliminate some more premature cifsd exits cifs: prevent cifsd from exiting prematurely [CIFS] ntlmv2/ntlmssp remove-unused-function CalcNTLMv2_partial_mac_key cifs: eliminate redundant xdev check in cifs_rename Revert "[CIFS] Fix ntlmv2 auth with ntlmssp" Revert "missing changes during ntlmv2/ntlmssp auth and sign" Revert "Eliminate sparse warning - bad constant expression" Revert "[CIFS] Eliminate unused variable warning"
2010-09-13Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: fs/9p: Don't use dotl version of mknod for dotu inode operations fs/9p: Use the correct dentry operations 9p: Check for NULL fid in v9fs_dir_release() fs/9p: Fix error handling in v9fs_get_sb fs/9p, net/9p: memory leak fixes
2010-09-13Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: dquot: do full inode dirty in allocating space
2010-09-13Merge branch 'next-spi' of git://git.secretlab.ca/git/linux-2.6Linus Torvalds
* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: spi/pl022: move probe call to subsys_initcall() powerpc/5200: mpc52xx_uart.c: Add of_node_put to avoid memory leak spi/pl022: fix APB pclk power regression on U300 spi/spi_s3c64xx: Warn if PIO transfers time out spi/s3c64xx: Fix incorrect reuse of 'val' local variable. spi/s3c64xx: Fix compilation warning spi/dw_spi: clean the cs_control code spi/dw_spi: Allow interrupt sharing spi/spi_s3c64xx: Increase dead reckoning time in wait_for_xfer() spi/spi_s3c64xx: Move to subsys_initcall() spi: free children in spi_unregister_master, not siblings gpiolib: Add 'struct gpio_chip' forward declaration for !GPIOLIB case of: Fix missing includes - ll_temac spi/spi_s3c64xx: Staticise non-exported functions spi/spi_s3c64xx: Make probe more robust against missing board config
2010-09-13m68k,m68knommu: Wire up fanotify_init, fanotify_mark, and prlimit64Geert Uytterhoeven
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Greg Ungerer <gerg@uclinux.org>
2010-09-13sched: Improve latencies under load by decreasing minimum scheduling granularityIngo Molnar
Mathieu reported bad latencies with make -j10 kind of kbuild workloads - which is mostly caused by us scheduling with a too coarse granularity. Reduce the minimum granularity some more, to make sure we can meet the latency target. I got the following results (make -j10 kbuild load, average of 3 runs): vanilla: maximum latency: 38278.9 µs average latency: 7730.1 µs patched: maximum latency: 22702.1 µs average latency: 6684.8 µs Mathieu also measured it: | | * wakeup-latency.c (SIGEV_THREAD) with make -j10 | | - Mainline 2.6.35.2 kernel | | maximum latency: 45762.1 µs | average latency: 7348.6 µs | | - With only Peter's smaller min_gran (shown below): | | maximum latency: 29100.6 µs | average latency: 6684.1 µs | Reported-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <AANLkTi=8m4g01wZPacySoF7U0PevTNVgJoZZrHiUD-pN@mail.gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-13perf ui browser: Don't use windows, slang is enoughArnaldo Carvalho de Melo
They are useless and take away precious columns and lines, so stop using windows. One more step in removing newt code, that after all is not being useful at all for the coalescing TUI model in perf. Suggested-by: Christoph Hellwig <hch@infradead.org> Cc: Christoph Hellwig <hch@infradead.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Tom Zanussi <tzanussi@gmail.com> LKML-Reference: <20100822082003.GB7365@infradead.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2010-09-13perf: Fix free_event()Peter Zijlstra
With the context rework stuff we can actually end up freeing an event before it gets attached to a context. Reported-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-13perf: Sanitize the RCU logicPeter Zijlstra
Simplify things and simply synchronize against two RCU variants for PMU unregister -- we don't care about performance, its module unload if anything. Reported-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-13fs/9p: Don't use dotl version of mknod for dotu inode operationsAneesh Kumar K.V
We should not use dotlversion for the dotu inode operations Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2010-09-13fs/9p: Use the correct dentry operationsAneesh Kumar K.V
We should use the cached dentry operation only if caching mode is enabled Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2010-09-139p: Check for NULL fid in v9fs_dir_release()jvrao
NULL fid should be handled in cases where we endup calling v9fs_dir_release() before even we instantiate the fid in filp. Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2010-09-13fs/9p: Fix error handling in v9fs_get_sbAneesh Kumar K.V
This was introduced by 7cadb63d58a932041afa3f957d5cbb6ce69dcee5 Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2010-09-13fs/9p, net/9p: memory leak fixesLatchesar Ionkov
Four memory leak fixes in the 9P code. Signed-off-by: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2010-09-13perf_events: Fix BTS interrupt handling to avoid being dazed by NMI (v2)Stephane Eranian
Fix a bug introduced with commit de725de and the change in the meaning of the return value of intel_pmu_handle_irq(). With the current code, when you are using the BTS, you get 'dazed by NMI' each time the BTS buffer fills up. BTS does interrupt on the PMU vector, thus NMI. You need to take this into account in the return value of the function. This version fixes initial patch which was missing changes to perf_event_intel_ds.c. Signed-off-by: Stephane Eranian <eranian@google.com> Acked-by: Don Zickus <dzickus@redhat.com> Cc: peterz@infradead.org Cc: paulus@samba.org Cc: davem@davemloft.net Cc: fweisbec@gmail.com Cc: perfmon2-devel@lists.sf.net Cc: eranian@gmail.com Cc: robert.richter@amd.com LKML-Reference: <4c8a1686.aae9d80a.5aa4.5e35@mx.google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-09-12Linux 2.6.36-rc4Linus Torvalds
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