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2013-04-30selftest: add a test case for PTRACE_PEEKSIGINFOAndrey Vagin
* Dump signals from process-wide and per-thread queues with different sizes of buffers. * Check error paths for buffers with restricted permissions. A part of buffer or a whole buffer is for read-only. * Try to get nonexistent signal. Signed-off-by: Andrew Vagin <avagin@openvz.org> Cc: Roland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Cc: David Howells <dhowells@redhat.com> Cc: Dave Jones <davej@redhat.com> Cc: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Pedro Alves <palves@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30selftest: add simple test for soft-dirty bitPavel Emelyanov
It creates a mapping of 3 pages and checks that reads, writes and clear-refs result in present and soft-dirt bits reported from pagemap2 set as expected. [akpm@linux-foundation.org: alphasort the Makefile TARGETS to reduce rejects] Signed-off-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2013-04-30Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "Usual stuff, mostly comment fixes, typo fixes, printk fixes and small code cleanups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (45 commits) mm: Convert print_symbol to %pSR gfs2: Convert print_symbol to %pSR m32r: Convert print_symbol to %pSR iostats.txt: add easy-to-find description for field 6 x86 cmpxchg.h: fix wrong comment treewide: Fix typo in printk and comments doc: devicetree: Fix various typos docbook: fix 8250 naming in device-drivers pata_pdc2027x: Fix compiler warning treewide: Fix typo in printks mei: Fix comments in drivers/misc/mei treewide: Fix typos in kernel messages pm44xx: Fix comment for "CONFIG_CPU_IDLE" doc: Fix typo "CONFIG_CGROUP_CGROUP_MEMCG_SWAP" mmzone: correct "pags" to "pages" in comment. kernel-parameters: remove outdated 'noresidual' parameter Remove spurious _H suffixes from ifdef comments sound: Remove stray pluses from Kconfig file radio-shark: Fix printk "CONFIG_LED_CLASS" doc: put proper reference to CONFIG_MODULE_SIG_ENFORCE ...
2013-04-30Merge branch 'perf-core-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf updates from Ingo Molnar: "Features: - Add "uretprobes" - an optimization to uprobes, like kretprobes are an optimization to kprobes. "perf probe -x file sym%return" now works like kretprobes. By Oleg Nesterov. - Introduce per core aggregation in 'perf stat', from Stephane Eranian. - Add memory profiling via PEBS, from Stephane Eranian. - Event group view for 'annotate' in --stdio, --tui and --gtk, from Namhyung Kim. - Add support for AMD NB and L2I "uncore" counters, by Jacob Shin. - Add Ivy Bridge-EP uncore support, by Zheng Yan - IBM zEnterprise EC12 oprofile support patchlet from Robert Richter. - Add perf test entries for checking breakpoint overflow signal handler issues, from Jiri Olsa. - Add perf test entry for for checking number of EXIT events, from Namhyung Kim. - Add perf test entries for checking --cpu in record and stat, from Jiri Olsa. - Introduce perf stat --repeat forever, from Frederik Deweerdt. - Add --no-demangle to report/top, from Namhyung Kim. - PowerPC fixes plus a couple of cleanups/optimizations in uprobes and trace_uprobes, by Oleg Nesterov. Various fixes and refactorings: - Fix dependency of the python binding wrt libtraceevent, from Naohiro Aota. - Simplify some perf_evlist methods and to allow 'stat' to share code with 'record' and 'trace', by Arnaldo Carvalho de Melo. - Remove dead code in related to libtraceevent integration, from Namhyung Kim. - Revert "perf sched: Handle PERF_RECORD_EXIT events" to get 'perf sched lat' back working, by Arnaldo Carvalho de Melo - We don't use Newt anymore, just plain libslang, by Arnaldo Carvalho de Melo. - Kill a bunch of die() calls, from Namhyung Kim. - Fix build on non-glibc systems due to libio.h absence, from Cody P Schafer. - Remove some perf_session and tracing dead code, from David Ahern. - Honor parallel jobs, fix from Borislav Petkov - Introduce tools/lib/lk library, initially just removing duplication among tools/perf and tools/vm. from Borislav Petkov ... and many more I missed to list, see the shortlog and git log for more details." * 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (136 commits) perf/x86/intel/P4: Robistify P4 PMU types perf/x86/amd: Fix AMD NB and L2I "uncore" support perf/x86/amd: Remove old-style NB counter support from perf_event_amd.c perf/x86: Check all MSRs before passing hw check perf/x86/amd: Add support for AMD NB and L2I "uncore" counters perf/x86/intel: Add Ivy Bridge-EP uncore support perf/x86/intel: Fix SNB-EP CBO and PCU uncore PMU filter management perf/x86: Avoid kfree() in CPU_{STARTING,DYING} uprobes/perf: Avoid perf_trace_buf_prepare/submit if ->perf_events is empty uprobes/tracing: Don't pass addr=ip to perf_trace_buf_submit() uprobes/tracing: Change create_trace_uprobe() to support uretprobes uprobes/tracing: Make seq_printf() code uretprobe-friendly uprobes/tracing: Make register_uprobe_event() paths uretprobe-friendly uprobes/tracing: Make uprobe_{trace,perf}_print() uretprobe-friendly uprobes/tracing: Introduce is_ret_probe() and uretprobe_dispatcher() uprobes/tracing: Introduce uprobe_{trace,perf}_print() helpers uprobes/tracing: Generalize struct uprobe_trace_entry_head uprobes/tracing: Kill the pointless local_save_flags/preempt_count calls uprobes/tracing: Kill the pointless seq_print_ip_sym() call uprobes/tracing: Kill the pointless task_pt_regs() calls ...
2013-04-29Merge tag 'ktest-v3.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest Pull ktest update from Steven Rostedt: "A couple of fixes to handle a config file that tests multiple machines and has conflicts it the grub menus. That is, if the machines use the same grub menu name, but they are at different locations in the menu.lst file" * tag 'ktest-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest: ktest: Reset grub menu cache with different machines ktest: Allow tests to use different GRUB_MENUs
2013-04-29Merge tag 'char-misc-3.10-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver update from Greg Kroah-Hartman: "Here's the big char / misc driver update for 3.10-rc1 A number of various driver updates, the majority being new functionality in the MEI driver subsystem (it's now a subsystem, it started out just a single driver), extcon updates, memory updates, hyper-v updates, and a bunch of other small stuff that doesn't fit in any other tree. All of these have been in linux-next for a while" * tag 'char-misc-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (148 commits) Tools: hv: Fix a checkpatch warning tools: hv: skip iso9660 mounts in hv_vss_daemon tools: hv: use FIFREEZE/FITHAW in hv_vss_daemon tools: hv: use getmntent in hv_vss_daemon Tools: hv: Fix a checkpatch warning tools: hv: fix checks for origin of netlink message in hv_vss_daemon Tools: hv: fix warnings in hv_vss_daemon misc: mark spear13xx-pcie-gadget as broken mei: fix krealloc() misuse in in mei_cl_irq_read_msg() mei: reduce flow control only for completed messages mei: reseting -> resetting mei: fix reading large reposnes mei: revamp mei_irq_read_client_message function mei: revamp mei_amthif_irq_read_message mei: revamp hbm state machine Revert "drivers/scsi: use module_pcmcia_driver() in pcmcia drivers" Revert "scsi: pcmcia: nsp_cs: remove module init/exit function prototypes" scsi: pcmcia: nsp_cs: remove module init/exit function prototypes mei: wd: fix line over 80 characters misc: tsl2550: Use dev_pm_ops ...
2013-04-24ktest: Reset grub menu cache with different machinesSteven Rostedt (Red Hat)
Different tests may use a different machine. In such cases, we need to try to get the current grub menu index. If the same grub menu is used for two different machines, it may not be at the same index on the second machine. A search for the index must be performed again. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-04-24Tools: hv: Fix a checkpatch warningK. Y. Srinivasan
Fix a checkpatch warning. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-24tools: hv: skip iso9660 mounts in hv_vss_daemonOlaf Hering
fsreeze does not work for iso9660 filesystems. A ENOSUPP may be caught in the freeze case, but the subsequent thaw call would fail and leads to a false error. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-24tools: hv: use FIFREEZE/FITHAW in hv_vss_daemonOlaf Hering
As suggested by Paolo Bonzini, use ioctl instead of calling fsfreeze. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-24tools: hv: use getmntent in hv_vss_daemonOlaf Hering
As suggested by Paolo Bonzini, use getmntent instead of parsing output of mount(1). Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-24Tools: hv: Fix a checkpatch warningK. Y. Srinivasan
Fix a checkpatch warning. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-24tools: hv: fix checks for origin of netlink message in hv_vss_daemonOlaf Hering
Similar to what commit 95a69adab9acfc3981c504737a2b6578e4d846ef ("tools: hv: Netlink source address validation allows DoS") does in hv_kvp_daemon, improve checks for origin of netlink connector message. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-24Tools: hv: fix warnings in hv_vss_daemonOlaf Hering
This change fixes a few compile errors: hv_vss_daemon.c:64:15: warning: unknown escape sequence '\/' hv_vss_daemon.c:64:15: warning: unknown escape sequence '\/' hv_vss_daemon.c: In function 'vss_operate': hv_vss_daemon.c:66: warning: 'return' with no value, in function returning non-void hv_vss_daemon.c: In function 'main': hv_vss_daemon.c:130: warning: ignoring return value of 'daemon', declared with attribute warn_unused_result hv_vss_daemon.c: In function 'vss_operate': hv_vss_daemon.c:47: warning: 'fs_op' may be used uninitialized in this function Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-04-17Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux Pull idle patches from Len Brown: "A pair of small patches for 3.9-rc7. This CPU-id should have been included in the ones that we updated earlier in 3.9. This pair of patches will allow this flavor of Haswell to behave like the other flavors." * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: tools/power turbostat: additional Haswell CPU-id intel_idle: additional Haswell CPU-id
2013-04-12treewide: Fix typo in printksMasanari Iida
Correct spelling typos in printk and comments. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-04-01perf map browser: Exit just on well known key pressesArnaldo Carvalho de Melo
Initial motivation was to avoid the confusing exit when when '/' is pressed in non verbose mode, as specified in the help line searches are only available in verbose mode. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-20xezxim2y4agmkx7f3sucll@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf tools: Remove dependency on libnewtArnaldo Carvalho de Melo
Now that the map browser shares the input routine with the hists browser, there is no need for using any libnewt routine, so remove all traces except for honouring NO_NEWT=1 on the makefile command line as an indication that TUI support is not needed, in fact it just sets NO_SLANG=1. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-wae5o7xca9m52bj1re28jc5j@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf map browser: Use ui_browser__input_window()Arnaldo Carvalho de Melo
Instead of an ad-hoc, libnewt based equivalent. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-elrijp95pijt66y6mmij4xm1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf python: Fix dependency for python/perf.soNaohiro Aota
The python/perf.so binding lacks dependency for libtraceevent.a so that it cause the following error building python/perf.so. This patch introduce the dependency for it. $ make python/perf.so CHK -fstack-protector-all CHK -Wstack-protector CHK -Wvolatile-register-var CHK -D_FORTIFY_SOURCE=2 CHK bionic CHK libelf CHK libdw CHK libunwind CHK -DLIBELF_MMAP CHK libaudit CHK libnewt CHK gtk2 CHK -DHAVE_GTK_INFO_BAR CHK perl CHK python CHK python version CHK libbfd CHK -DHAVE_STRLCPY CHK -DHAVE_ON_EXIT CHK -DBACKTRACE_SUPPORT CHK libnuma GEN python/perf.so x86_64-pc-linux-gnu-gcc: error: ../lib/traceevent/libtraceevent.a: No such file or directory error: command 'x86_64-pc-linux-gnu-gcc' failed with exit status 1 cp: cannot stat 'python_ext_build/lib/perf.so': No such file or directory make: *** [python/perf.so] Error 1 Signed-off-by: Naohiro Aota <naota@elisp.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/87wqswzznx.fsf@locke.i-did-not-set--mail-host-address--so-tickle-me Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf tools: Convert needless static variable to localArnaldo Carvalho de Melo
Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-k85ajz97xbrd8fkt2a8pp7q1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01Revert "perf sched: Handle PERF_RECORD_EXIT events"Arnaldo Carvalho de Melo
This reverts commit 0439539f72ea222fbfe511b47318b9c1815a7108. This caused this segfault: [root@sandy linux]# perf sched rec ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.306 MB perf.data (~57062 samples) ] perf [root@sandy linux]# perf sched lat perf: builtin-sched.c:781: thread_atoms_search: Assertion `!(thread != atoms->thread)' failed. Aborted (core dumped) [root@sandy linux]# Further investigation is needed to check that even with machine__remove_thread() not really deleting the thread referenced in the PERF_RECORD_EXIT (it goes to machine->dead_threads, because references may still exist to them in things like hist, etc) some event later comes for this dead thread and then machine__findnew_thread() will create a new thead instance that will not be the same as the one referenced by work_atoms->thread in thread_atoms_search(). For now just revert this patch to get the 'perf sched lat' back working. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> echo Link: http://lkml.kernel.org/n/tip-`ranpwd -l 24`@git.kernel.org Link: http://lkml.kernel.org/n/tip-hg4s6e5txiwqe00h8rdg1sin@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf tools: Fix output of symbol_daddr offsetNamhyung Kim
The symbol addresses in a dso have relative offsets from the start of a mapping. So in order to ouput correct offset value from @ip, one of them should be converted. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/r/1359040242-8269-19-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf machine: Detect data vs. text mappingsStephane Eranian
Leverages the PERF_RECORD_MISC_MMAP_DATA bit in the RECORD_MMAP record header. When the bit is set then the mapping type is set to MAP__VARIABLE. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1359040242-8269-17-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf tools: Add new mem command for memory access profilingStephane Eranian
This new command is a wrapper on top of perf record and perf report to make it easier to configure for memory access profiling. To record loads: $ perf mem -t load rec ..... To record stores: $ perf mem -t store rec ..... To get the report: $ perf mem -t load rep Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1359040242-8269-15-git-send-email-eranian@google.com [ Fixed minor conflict with 66857b5 "Sort command-list.txt alphabetically" ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf report: Add support for mem access profilingStephane Eranian
This patch adds the --mem-mode option to perf report. This mode requires a perf.data file created with memory access samples. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1359040242-8269-13-git-send-email-eranian@google.com [ Removed duplicates in the --sort help, man page needs updating, Fixed minor conflict with 328ccda "perf report: Add --no-demangle option" ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf record: Add support for mem access profilingStephane Eranian
We use the -W option to obtain the cost of the memory accesses. Data address sampling is obtained via the -d option. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1359040242-8269-14-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf tools: Add mem access sampling core supportStephane Eranian
This patch adds the sorting and histogram support functions to enable profiling of memory accesses. The following sorting orders are added: - symbol_daddr: data address symbol (or raw address) - dso_daddr: data address shared object - locked: access uses locked transaction - tlb : TLB access - mem : memory level of the access (L1, L2, L3, RAM, ...) - snoop: access snoop mode Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1359040242-8269-12-git-send-email-eranian@google.com [ committer note: changed to cope with fc5871ed, the move of methods to machine.[ch], and the rename of dsrc to data_src, to match the change made in the PERF_SAMPLE_DSRC in a previous patch. ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-04-01perf tools: Add support for weight v7 (modified)Andi Kleen
perf record has a new option -W that enables weightened sampling. Add sorting support in top/report for the average weight per sample and the total weight sum. This allows to both compare relative cost per event and the total cost over the measurement period. Add the necessary glue to perf report, record and the library. v2: Merge with new hist refactoring. v3: Fix manpage. Remove value check. Rename global_weight to weight and weight to local_weight. v4: Readd sort keys to manpage v5: Move weight to end v6: Move weight to template v7: Rename weight key. Original patch from Andi modified by Stephane Eranian <eranian@google.com> to include ONLY the weight supporting code and apply to pristine 3.8.0-rc4. Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1359040242-8269-6-git-send-email-eranian@google.com [ committer note: changed to cope with fc5871ed and the hists_link perf test entry ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-31treewide: Fix typos in kernel messagesMasanari Iida
Correct spelling typos in various part of printk. Signed-off-by: Masanari Iida <standby24x7@gmail.com> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2013-03-26perf report: Add --no-demangle optionNamhyung Kim
It's sometimes useful to see undemangled raw symbol name for example other tools using the perf output to do manipulation of binaries. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Suggested-by: William Cohen <wcohen@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: William Cohen <wcohen@redhat.com> BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=55571 Link: http://lkml.kernel.org/r/1364203098-17741-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-26Merge tag 'arizona-extcon-asoc' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc into char-misc-next Mark writes: ASoC/extcon: arizona: Fix interaction between HPDET and headphone outputs This patch series covers both ASoC and extcon subsystems and fixes an interaction between the HPDET function and the headphone outputs - we really shouldn't run HPDET while the headphone is active. The first patch is a refactoring to make the extcon side easier.
2013-03-25perf stat: Add per-core aggregationStephane Eranian
This patch adds the --per-core option to perf stat. This option is used to aggregate system-wide counts on a per physical core basis. On processors with hyperthreading, this means counts of all HT threads running on a physical core are aggregated. This mode is useful to find imblance between physical cores running an uniform workload. Cores are identified by socket: S0-C1, means physical core 1 on socket 0. Note that cores are identified using their physical core id, thus their numbering may not be continuous. Per core aggregation can be combined with interval printing: # perf stat -a --per-core -I 1000 -e cycles sleep 1000 # time core cpus counts events 1.000090030 S0-C0 1 4,765,747 cycles 1.000090030 S0-C1 1 5,580,647 cycles 1.000090030 S0-C2 1 221,181 cycles 1.000090030 S0-C3 1 266,092 cycles Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1360846649-6411-4-git-send-email-eranian@google.com [ committer note: Remove parts already applied on 86ee6e1 to keep bisectability ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-25perf stat: Rename --aggr-socket to --per-socketStephane Eranian
To make it more obvious what this option does as suggested by Andi on LKML. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1360846649-6411-3-git-send-email-eranian@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-25perf stat: Refactor aggregation codeStephane Eranian
Refactor aggregation code by introducing a single aggr_mode variable and an enum for aggregation. Also refactor cpumap code having to do with cpu to socket mappings. All in preparation for extended modes, such as cpu -> core. Also fix socket aggregation and ensure that sockets are printed in increasing order. Signed-off-by: Stephane Eranian <eranian@google.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1360846649-6411-2-git-send-email-eranian@google.com [ committer note: Fixup conflicts with a7e191c "--repeat forever" and acf2892 "Use perf_evlist__prepare/start_workload()" ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Cleanup calc_data_size logicNamhyung Kim
It's for calculating whole trace data size during reading. However relation functions are called only in this file, no need to conditionalize it with tricky +1 offset and rename the variable to more meaningful name like trace_data_size. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-10-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Get rid of die() calls in trace-data-read.cNamhyung Kim
Convert them to pr_debug() and propagate error code. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-9-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Get rid of read_or_die() in trace-event-read.cNamhyung Kim
Rename it to do_read and original do_read to __do_read, and check their return value. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-8-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Get rid of malloc_or_die() in trace-event-read.cNamhyung Kim
Check return value of malloc() and fail if error. Now read_string() can return NULL also check its return value and bail out. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-7-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Handle failure case in trace_report()Namhyung Kim
If pevent allocation in read_trace_init() fails, trace_report() will return -1 and *ppevent is set to NULL. Its callers should check this case and handle it properly. This is also a preparation for the removal of *die() calls. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-6-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Get rid of die() calls from trace-event-info.cNamhyung Kim
Now remove all remaining die() calls and convert them to check return value and propagate it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Get rid of write_or_die() from trace-event-info.cNamhyung Kim
Check return value of write and fail if error. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Get rid of malloc_or_die() in trace-event-info.cNamhyung Kim
Check return value of malloc and fail if NULL. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Let get_tracing_file() return NULL to indicate failure.Namhyung Kim
So that it can be used by other places. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1363850332-25297-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21perf tools: Get rid of redundant _FILE_OFFSET_BITS definitionNamhyung Kim
We define it in the Makefile so no need to duplicate it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1363686376-29525-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-21Merge tag 'perf-core-for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Conflicts: tools/Makefile Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: . Honor parallel jobs, fix from Borislav Petkov . Introduce tools/lib/lk library, initially just removing duplication among tools/perf and tools/vm. from Borislav Petkov . Fix build on non-glibc systems due to libio.h absence, from Cody P Schafer. . Remove some perf_session and tracing dead code, from David Ahern. . Introduce perf stat --repeat forever, from Frederik Deweerdt. . Add perf test entries for checking --cpu in record and stat, from Jiri Olsa. . Add perf test entries for checking breakpoint overflow signal handler issues, from Jiri Olsa. . Add perf test entry for for checking number of EXIT events, from Namhyung Kim. . Simplify some perf_evlist methods and to allow 'stat' to share code with 'record' and 'trace'. . Remove dead code in related to libtraceevent integration, from Namhyung Kim. . Event group view for 'annotate' in --stdio, --tui and --gtk, from Namhyung Kim. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> [ resolved the trivial merge conflict with upstream ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-18perf tests: Add a test case for checking sw clock event frequencyNamhyung Kim
This test case checks frequency conversion of hrtimer-based software clock events (cpu-clock, task-clock) have valid (non-1) periods. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1363574507-18808-2-git-send-email-namhyung@kernel.org [ committer note: Moved .sample_freq to outside named init block to cope with some gcc versions ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-18perf stat: Introduce evlist methods to allocate/free the statsArnaldo Carvalho de Melo
Reducing the noise in the main logic. Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-o219lnci04hlilxi6711wtcr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2013-03-18Merge tag 'perf-urgent-for-mingo' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: . perf probe: Fix segfault due to testing the wrong pointer for NULL, from Ananth N Mavinakayanahalli. . libtraceevent: Remove hard coded include to /usr/local/include in Makefile, which causes cross builds to include host header files, fix from Jack Mitchell. . perf record: Use the right target interface for synthesizing threads when --cpu/-C option is used, fix from Jiri Olsa. . Check if -DFORTIFY_SOURCE=2 is allowed, as gcc 4.7.2 defines it and then the build is broken when it is redefined in perf, fix from Marcin Slusarz. . Fix build with NO_NEWT=1, that can happen explicitely or when the newt-devel package is not installed, from Michael Ellerman. . perf/POWER7: Create a sysfs format entry for Power7 events, missing patch from a patchseries already merged, from Sukadev Bhattiprolu. . Fix LIBNUMA build with glibc 2.12 and older, from Vinson Lee. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org>
2013-03-15Drivers: hv: Add a new driver to support host initiated backupK. Y. Srinivasan
This driver supports host initiated backup of the guest. On Windows guests, the host can generate application consistent backups using the Windows VSS framework. On Linux, we ensure that the backup will be file system consistent. This driver allows the host to initiate a "Freeze" operation on all the mounted file systems in the guest. Once the mounted file systems in the guest are frozen, the host snapshots the guest's file systems. Once this is done, the guest's file systems are "thawed". This driver has a user-level component (daemon) that invokes the appropriate operation on all the mounted file systems in response to the requests from the host. The duration for which the guest is frozen is very short - a few seconds. During this interval, the diff disk is comitted. In this version of the patch I have addressed the feedback from Olaf Herring. Also, some of the connector related issues have been fixed. Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com> Cc: Evgeniy Polyakov <zbr@ioremap.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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