- 14 Jan, 2020 11 commits
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Andres Freund authored
Commit 722ddfde ("perf tools: Fix time sorting") changed - correctly so - hist_entry__sort to return int64. Unfortunately several of the builtin-c2c.c comparison routines only happened to work due the cast caused by the wrong return type. This causes meaningless ordering of both the cacheline list, and the cacheline details page. E.g a simple: perf c2c record -a sleep 3 perf c2c report will result in cacheline table like ================================================= Shared Data Cache Line Table ================================================= # # ------- Cacheline ---------- Total Tot - LLC Load Hitm - - Store Reference - - Load Dram - LLC Total - Core Load Hit - - LLC Load Hit - # Index Address Node PA cnt records Hitm Total Lcl Rmt Total L1Hit L1Miss Lcl Rmt Ld Miss Loads FB L1 L2 Llc Rmt # ..... .............. .... ...... ....... ...... ..... ..... ... .... ..... ...... ...... .... ...... ..... ..... ..... ... .... ....... 0 0x7f0d27ffba00 N/A 0 52 0.12% 13 6 7 12 12 0 0 7 14 40 4 16 0 0 0 1 0x7f0d27ff61c0 N/A 0 6353 14.04% 1475 801 674 779 779 0 0 718 1392 5574 1299 1967 0 115 0 2 0x7f0d26d3ec80 N/A 0 71 0.15% 16 4 12 13 13 0 0 12 24 58 1 20 0 9 0 3 0x7f0d26d3ec00 N/A 0 98 0.22% 23 17 6 19 19 0 0 6 12 79 0 40 0 10 0 i.e. with the list not being ordered by Total Hitm. Fixes: 722ddfde ("perf tools: Fix time sorting") Signed-off-by:
Andres Freund <andres@anarazel.de> Tested-by:
Michael Petlan <mpetlan@redhat.com> Acked-by:
Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: stable@vger.kernel.org # v3.16+ Link: http://lore.kernel.org/lkml/20200109043030.233746-1-andres@anarazel.deSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com>
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Cengiz Can authored
The sockaddr related examples given in `tools/perf/examples/bpf/augmented_syscalls.c` almost always use `long`s to represent most of their fields. However, `size_t syscall_arg__scnprintf_sockaddr(..)` has a `scnprintf` call that uses `"%#x"` as format string. This throws a warning (whenever the syscall argument is `unsigned long`). Added `l` identifier to indicate that the `arg->value` is an unsigned long. Not sure about the complications of this with x86 though. Signed-off-by:
Cengiz Can <cengiz@kernel.wtf> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20200113174438.102975-1-cengiz@kernel.wtfSigned-off-by:
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Jiri Olsa authored
Ravi Bangoria reported an issue when doing the gtk2 feature detection on Fedora 31, where some types got deprecated: /usr/include/gtk-2.0/gtk/gtktypeutils.h:236:1: error: ‘GTypeDebugFlags’ is deprecated [-Werror=deprecated-declarations] 236 | void gtk_type_init (GTypeDebugFlags debug_flags); Fix this for perf by allowing the compile to pass with deprecated symbols via the -Wno-deprecated-declarations compiler directive. Reported-by:Ravi Bangoria <ravi.bangoria@linux.ibm.com> Signed-off-by:
Jiri Olsa <jolsa@kernel.org> Tested-by:
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Jiri Olsa authored
When we moved zalloc.o to the library we missed gtk library which needs it compiled in, otherwise the missing __zfree symbol will cause the library to fail to load. Adding the zalloc object to the gtk library build. Fixes: 7f7c536f ("tools lib: Adopt zalloc()/zfree() from tools/perf") Signed-off-by:
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Jiri Olsa authored
bison deprecated the "%pure-parser" directive in favor of "%define api.pure full". The api.pure got introduced in bison 2.3 (Oct 2007), so it seems safe to use it without any version check. Signed-off-by:
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Jiri Olsa authored
Jann Horn reported crash in perf ftrace because evlist::all_cpus isn't initialized if there's evlist without events, which is the case for perf ftrace. Adding initial initialization of evlist::all_cpus from given cpus, regardless of events in the evlist. Fixes: 7736627b ("perf stat: Use affinity for closing file descriptors") Reported-by:
Jann Horn <jannh@google.com> Signed-off-by:
Andi Kleen <ak@linux.intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Michael Petlan <mpetlan@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20200110151537.153012-1-jolsa@kernel.orgSigned-off-by:
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Jin Yao authored
Commit 800d3f56 ("perf report: Add warning when libunwind not compiled in") breaks the s390 platform. S390 uses libdw-dwarf-unwind for call chain unwinding and had no support for libunwind. So the warning "Please install libunwind development packages during the perf build." caused the confusion even if the call-graph is displayed correctly. This patch adds checking for HAVE_DWARF_SUPPORT, which is set when libdw-dwarf-unwind is compiled in. Fixes: 800d3f56 ("perf report: Add warning when libunwind not compiled in") Signed-off-by:
Jin Yao <yao.jin@linux.intel.com> Reviewed-by:
Thomas Richter <tmricht@linux.ibm.com> Tested-by:
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Andi Kleen authored
The objdump utility has useful --prefix / --prefix-strip options to allow changing source code file names hardcoded into executables' debug info. Add options to 'perf report', 'perf top' and 'perf annotate', which are then passed to objdump. $ mkdir foo $ echo 'main() { for (;;); }' > foo/foo.c $ gcc -g foo/foo.c foo/foo.c:1:1: warning: return type defaults to ‘int’ [-Wimplicit-int] 1 | main() { for (;;); } | ^~~~ $ perf record ./a.out ^C[ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.230 MB perf.data (5721 samples) ] $ mv foo bar $ perf annotate <does not show source code> $ perf annotate --prefix=/home/ak/lsrc/git/bar --prefix-strip=5 <does show source code> Signed-off-by: -
Andi Kleen authored
Refer to --no-children, which is what most people probably want. Signed-off-by:
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Maciej S. Szmigiero authored
LLVM rL344140 (included in Clang 8+) moved VFS from Clang to LLVM, so paths to its include files have changed. This broke the Clang test in tools/build - let's fix it. Signed-off-by:
Maciej S. Szmigiero <mail@maciej.szmigiero.name> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Denis Pronin <dannftk@yandex.ru> Cc: Dennis Schridde <devurandom@gmx.net> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naohiro Aota <naota@elisp.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: clang-built-linux@googlegroups.com Link: http://lore.kernel.org/lkml/20191228171314.946469-1-mail@maciej.szmigiero.nameSigned-off-by:
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Maciej S. Szmigiero authored
LLVM D59377 (included in Clang 9) refactored Clang VFS construction a bit, which broke perf clang build. Let's fix it. Signed-off-by:
Dennis Schridde <devurandom@gmx.net> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: clang-built-linux@googlegroups.com Cc: Denis Pronin <dannftk@yandex.ru> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Naohiro Aota <naota@elisp.net> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lore.kernel.org/lkml/20191228171314.946469-2-mail@maciej.szmigiero.nameSigned-off-by:
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- 10 Jan, 2020 1 commit
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Ingo Molnar authored
Merge tag 'perf-core-for-mingo-5.6-20200106' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo: perf record: Alexey Budankov: - Adapt affinity for machines with #CPUs > 1K to overcome current 1024 CPUs mask size limitation of cpu_set_t type. perf report/top TUI: Arnaldo Carvalho de Melo: - Make ENTER consistently present the pop up menu with and without call chains, to eliminate confusion. The menu continues available at all times use 'm' and '+' can be used to toggle just one call chain level, 'e' for all the call chains for a top level histogram entry and 'E' to expand all call chains in all top level entries. Extra info about these options was added to the pop up menu entries. Pressing 'k' serves as special hotkey to go straight to the main vmlinux entries, to avoid having to press enter and then select "Zoom into the kernel DSO". perf sched timehist: David Ahern: - Add support for filtering on CPU. perf tests: Arnaldo Carvalho de Melo: - Show expected versus obtained values in bp_signal test. libperf: Jiri Olsa: - Move to tools/lib/perf. - Add man pages. libapi: Andrey Zhizhikin: - Fix gcc9 stringop-truncation compilation error. tools lib: Vitaly Chikunov: - Fix builds when glibc contains strlcpy(), which is the case for ALT Linux. Signed-off-by:
Ingo Molnar <mingo@kernel.org>
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- 06 Jan, 2020 20 commits
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Vitaly Chikunov authored
Disable a couple of compilation warnings (which are treated as errors) on strlcpy() definition and declaration, allowing users to compile perf and kernel (objtool) when: 1. glibc have strlcpy() (such as in ALT Linux since 2004) objtool and perf build fails with this (in gcc): In file included from exec-cmd.c:3: tools/include/linux/string.h:20:15: error: redundant redeclaration of ‘strlcpy’ [-Werror=redundant-decls] 20 | extern size_t strlcpy(char *dest, const char *src, size_t size); 2. clang ignores `-Wredundant-decls', but produces another warning when building perf: CC util/string.o ../lib/string.c:99:8: error: attribute declaration must precede definition [-Werror,-Wignored-attributes] size_t __weak strlcpy(char *dest, const char *src, size_t size) ../../tools/include/linux/compiler.h:66:34: note: expanded from macro '__weak' # define __weak __attribute__((weak)) /usr/include/bits/string_fortified.h:151:8: note: previous definition is here __NTH (strlcpy (char *__restrict __dest, const char *__restrict __src, Committer notes: The #pragma GCC diagnostic directive was introduced in gcc 4.6, so check for that as well. Fixes: ce990917 ("perf tools: Move strlcpy() from perf to tools/lib/string.c") Fixes: 0215d59b ("tools lib: Reinstate strlcpy() header guard with __UCLIBC__") Resolves: https://bugzilla.kernel.org/show_bug.cgi?id=118481Signed-off-by:Vitaly Chikunov <vt@altlinux.org> Reviewed-by:
Dmitry Levin <ldv@altlinux.org> Cc: Dmitry Levin <ldv@altlinux.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: kbuild test robot <lkp@intel.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: stable@vger.kernel.org Cc: Vineet Gupta <vineet.gupta1@synopsys.com> Link: http://lore.kernel.org/lkml/20191224172029.19690-1-vt@altlinux.orgSigned-off-by:
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Arnaldo Carvalho de Melo authored
The 'e' and 'c' hotkeys were present for a long time, but not documented in the help window, change 'e' to be a toggle so that it gets consistent with other toggles like '+' and document it in the help window. Keep 'c' as is for people used to it but don't document, as it is easier to just use 'e' to show/hide all the callchains for a top level histogram entry. Reviewed-by:
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Arnaldo Carvalho de Melo authored
This can happen in the --children mode, i.e. the default mode when callchains are present, where one of the main entries may be a callchain entry with no samples. So far we were not providing any information about why an annotation couldn't be provided even offering the Annotation option in the popup menu. Work is needed to allow for no-samples "annotation', i.e. to show the disassembly anyway and allow for navigation, etc. Reviewed-by:
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Arnaldo Carvalho de Melo authored
When the users presses ENTER in the main 'perf report/top' screen a popup menu is presented, in it some hotkeys are suggested as alternatives to using the menu, or for additional features. At that point the user may try those hotkeys, so allow for that by recording the key used and exiting, the caller then can check for that possibility and process the hotkey. I.e. try pressing ENTER, and then 'k' to exit and zoom into the kernel map, using ESC then zooms out, etc. Reviewed-by:
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Arnaldo Carvalho de Melo authored
With this patch if an optional pointer is passed to ui__popup_menu() then when any key that is not being handled (ENTER, ESC, etc) is typed, it'll record that key in the pointer and return, allowing for hotkey processing on the caller. If NULL is passed, no change in logic, unhandled keys continue to be ignored. Reviewed-by:
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Arnaldo Carvalho de Melo authored
Sometimes we're in an outer code, like the main hists browser popup menu and the user follows a suggestion about using some hotkey, and that hotkey is really handled by hists_browser__run(), so allow for calling it with that hotkey, making it handle it instead of waiting for the user to press one. Reviewed-by:
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Arnaldo Carvalho de Melo authored
As a convenience, equivalent to pressing Enter in a line with a kernel symbol and then selecting "Zoom" into the kernel DSO. Reviewed-by:
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Arnaldo Carvalho de Melo authored
We'll use it to provide a top level hotkey to zoom into the kernel dso directly. Reviewed-by:
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Arnaldo Carvalho de Melo authored
Taking into account the current status of the callchain, i.e. if folded, show "Expand", otherwise "Collapse", also show the name of the entry that will be affected and mention the hotkeys for expanding/collapsing all callchains below the main entry, the one that appears with/without callchains. Reviewed-by:
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Arnaldo Carvalho de Melo authored
Since previously pressing ENTER toggled expansion/collapse of callchain entries and now brings up the same menu used when callchains are not present, add an entry so that users can quickly figure out the change in behaviour. Its worth mentioning that we also always had 'e'/'c' to expand/collapse all entries in a hist entry and 'E'/'C' for all hist entries. Suggested-by:
Linus Torvalds <torvalds@linux-foundation.org> Reviewed-by:
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Arnaldo Carvalho de Melo authored
When callchains are present the ENTER key switches from bringing up the menu that offers Annotation, Zoom by DSO, etc to expanding/collapsing one callchain level, causing confusion, fix it by making it consistently bring up the menu and use '+' to expand/collapse one callchain level. Next patch will also add an entry to the menu to allow expanding/collapsing, so that people used to ENTER expanding one callchain level can quickly find it and use it instead. Reported-by:
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Arnaldo Carvalho de Melo authored
We need to set actions->ms.map since 599a2f38 ("perf hists browser: Check sort keys before hot key actions"), as in that patch we bail out if map is NULL. Reviewed-by:
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Andrey Zhizhikin authored
GCC9 introduced string hardening mechanisms, which exhibits the error during fs api compilation: error: '__builtin_strncpy' specified bound 4096 equals destination size [-Werror=stringop-truncation] This comes when the length of copy passed to strncpy is is equal to destination size, which could potentially lead to buffer overflow. There is a need to mitigate this potential issue by limiting the size of destination by 1 and explicitly terminate the destination with NULL. Signed-off-by:
Andrey Zhizhikin <andrey.zhizhikin@leica-geosystems.com> Reviewed-by:
Petr Mladek <pmladek@suse.com> Acked-by:
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Jiri Olsa authored
Change the man page generation to asciidoc, because it's easier to use and has been more commonly used in related projects. Remove the current rst pages. Add 3 man pages to have a base for more additions: libperf.3 - overall description libperf-counting.7 - counting basics explained on simple example libperf-sampling.7 - sampling basics explained on simple example The plan is to add more man pages to cover the basic API. The build generates html and man pages: $ cd tools/lib/perf/Documentation $ make ASCIIDOC libperf.xml XMLTO libperf.3 ASCIIDOC libperf-counting.xml XMLTO libperf-counting.7 ASCIIDOC libperf-sampling.xml XMLTO libperf-sampling.7 ASCIIDOC libperf.html ASCIIDOC libperf-counting.html ASCIIDOC libperf-sampling.html Add the following install targets: install-man - man pages install-html - html version of man pages install-examples - examples mentioned in the man pages Signed-off-by: -
Jiri Olsa authored
Move libperf from its current location under tools/perf to a separate directory under tools/lib/. Also change various paths (mainly includes) to reflect the libperf move to a separate directory and add a new directory under MANIFEST. Signed-off-by:
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Arnaldo Carvalho de Melo authored
To help understand failures. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: https://lkml.kernel.org/n/tip-c951j3gvrgnrsyg7ki7pwkiz@git.kernel.orgSigned-off-by:
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David Ahern authored
Allow user to limit output to one or more CPUs. Really helpful on systems with a large number of cpus. Committer testing: # perf sched record -a sleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 1.765 MB perf.data (1412 samples) ] [root@quaco ~]# perf sched timehist | head Samples do not have callchains. time cpu task name wait time sch delay run time [tid/pid] (msec) (msec) (msec) --------------- ------ ------------------------------ --------- --------- --------- 66307.802686 [0000] perf[13086] 0.000 0.000 0.000 66307.802700 [0000] migration/0[12] 0.000 0.001 0.014 66307.802766 [0001] perf[13086] 0.000 0.000 0.000 66307.802774 [0001] migration/1[15] 0.000 0.001 0.007 66307.802841 [0002] perf[13086] 0.000 0.000 0.000 66307.802849 [0002] migration/2[20] 0.000 0.001 0.008 66307.802913 [0003] perf[13086] 0.000 0.000 0.000 # # perf sched timehist --cpu 2 | head Samples do not have callchains. time cpu task name wait time sch delay run time [tid/pid] (msec) (msec) (msec) --------------- ------ ------------------------------ --------- --------- --------- 66307.802841 [0002] perf[13086] 0.000 0.000 0.000 66307.802849 [0002] migration/2[20] 0.000 0.001 0.008 66307.964485 [0002] <idle> 0.000 0.000 161.635 66307.964811 [0002] CPU 0/KVM[3589/3561] 0.000 0.056 0.325 66307.965477 [0002] <idle> 0.325 0.000 0.666 66307.965553 [0002] CPU 0/KVM[3589/3561] 0.666 0.024 0.076 66307.966456 [0002] <idle> 0.076 0.000 0.903 # Signed-off-by:David Ahern <dsahern@gmail.com> Tested-by:
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Alexey Budankov authored
Use struct mmap_cpu_mask type for the tool's thread and mmap data buffers to overcome current 1024 CPUs mask size limitation of cpu_set_t type. Currently glibc's cpu_set_t type has an internal mask size limit of 1024 CPUs. Moving to the 'struct mmap_cpu_mask' type allows overcoming that limit. The tools bitmap API is used to manipulate objects of 'struct mmap_cpu_mask' type. Committer notes: To print the 'nbits' struct member we must use %zd, since it is a size_t, this fixes the build in some toolchains/arches. Reported-by:
Alexey Budankov <alexey.budankov@linux.intel.com> Acked-by:
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Alexey Budankov authored
Declare a dedicated struct map_cpu_mask type for cpu masks of arbitrary length. The mask is available thru bits pointer and the mask length is kept in nbits field. MMAP_CPU_MASK_BYTES() macro returns mask storage size in bytes. The mmap_cpu_mask__scnprintf() function can be used to log text representation of the mask. Committer notes: To print the 'nbits' struct member we must use %zd, since it is a size_t, this fixes the build in some toolchains/arches. Signed-off-by:
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Alexey Budankov authored
Extend tools bitmap API with bitmap_equal() implementation. The implementation has been derived from the kernel. Extend tools bitmap API with bitmap_free() implementation for symmetry with bitmap_alloc() function. Signed-off-by:
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- 25 Dec, 2019 2 commits
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Peter Zijlstra authored
Commit: 285a54ef ("x86/alternatives: Sync bp_patching update for avoiding NULL pointer exception") added an additional text_poke_sync() IPI to text_poke_bp_batch() to handle the rare case where another CPU is still inside an INT3 handler while we clear the global state. Instead of spraying IPIs around, count the active INT3 handlers and wait for them to go away before proceeding to clear/reuse the data. Signed-off-by:
Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by:
Masami Hiramatsu <mhiramat@kernel.org> Reviewed-by:
Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Ingo Molnar authored
Signed-off-by:
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- 23 Dec, 2019 3 commits
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Ingo Molnar authored
Merge tag 'perf-urgent-for-mingo-5.5-20191223' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent Pull perf/urgent fixes from Arnaldo Carvalho de Melo: perf report/top: Arnaldo Carvalho de Melo: - Fix popup menu for entries in main kernel maps other than the main one, e.g. ".init.text", where a non-initialized pointer was causing segfaults. Jin Yao: - Fix incorrectly added dimensions when switching perf.data file to another via the popup menu. libtraceevent: Hewenliang: - Fix memory leakage in filter_event(). perf hists: Yuya Fujita: - Fix variable name's inconsistency in hists__for_each() macro. Signed-off-by:
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs fixes from Al Viro: "Eric's s_inodes softlockup fixes + Jan's fix for recent regression from pipe rework" * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs: call fsnotify_sb_delete after evict_inodes fs: avoid softlockups in s_inodes iterators pipe: Fix bogus dereference in iov_iter_alignment()
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- 22 Dec, 2019 3 commits
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs fixes from Darrick Wong: "Fix a few bugs that could lead to corrupt files, fsck complaints, and filesystem crashes: - Minor documentation fixes - Fix a file corruption due to read racing with an insert range operation. - Fix log reservation overflows when allocating large rt extents - Fix a buffer log item flags check - Don't allow administrators to mount with sunit= options that will cause later xfs_repair complaints about the root directory being suspicious because the fs geometry appeared inconsistent - Fix a non-static helper that should have been static" * tag 'xfs-5.5-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: Make the symbol 'xfs_rtalloc_log_count' static xfs: don't commit sunit/swidth updates to disk if that would cause repair failures xfs: split the sunit parameter update into two parts xfs: refactor agfl length computation function libxfs: resync with the userspace libxfs xfs: use bitops interface for buf log item AIL flag check xfs: fix log reservation overflows when allocating large rt extents xfs: stabilize insert range start boundary to avoid COW writeback race xfs: fix Sphinx documentation warning -
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 bug fixes from Ted Ts'o: "Ext4 bug fixes, including a regression fix" * tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: clarify impact of 'commit' mount option ext4: fix unused-but-set-variable warning in ext4_add_entry() jbd2: fix kernel-doc notation warning ext4: use RCU API in debug_print_tree ext4: validate the debug_want_extra_isize mount option at parse time ext4: reserve revoke credits in __ext4_new_inode ext4: unlock on error in ext4_expand_extra_isize() ext4: optimize __ext4_check_dir_entry() ext4: check for directory entries too close to block end ext4: fix ext4_empty_dir() for directories with holes
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "Let's try this one again, this time without the compat_ioctl changes. We've got those fixed up, but that can go out next week. This contains: - block queue flush lockdep annotation (Bart) - Type fix for bsg_queue_rq() (Bart) - Three dasd fixes (Stefan, Jan) - nbd deadlock fix (Mike) - Error handling bio user map fix (Yang) - iocost fix (Tejun) - sbitmap waitqueue addition fix that affects the kyber IO scheduler (David)" * tag 'block-5.5-20191221' of git://git.kernel.dk/linux-block: sbitmap: only queue kyber's wait callback if not already active block: fix memleak when __blk_rq_map_user_iov() is failed s390/dasd: fix typo in copyright statement s390/dasd: fix memleak in path handling error case s390/dasd/cio: Interpret ccw_device_get_mdc return value correctly block: Fix a lockdep complaint triggered by request queue flushing block: Fix the type of 'sts' in bsg_queue_rq() block: end bio with BLK_STS_AGAIN in case of non-mq devs and REQ_NOWAIT nbd: fix shutdown and recv work deadlock v2 iocost: over-budget forced IOs should schedule async delay
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