AuxXxilium/linux_dsm_epyc7002
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84c2cafa28
linux_dsm_epyc7002/tools/perf
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Arnaldo Carvalho de Melo 84c2cafa28 perf tools: Reference count struct map 
We have pointers to struct map instances in several places, like in the
hist_entry instances, so we need a way to know when we can destroy them,
otherwise we may either keep leaking them or end up referencing deleted
instances.

Start fixing it by reference counting them.

This patch puts the reference count for struct map in place, replacing
direct map__delete() calls with map__put() ones and then grabbing a
reference count when adding it to the maps struct where maps for a
struct thread are kept.

Next we'll grab reference counts when setting pointers to struct map
instances, in places like in the hist_entry code.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-wi19xczk0t2a41r1i2chuio5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2015-05-27 20:27:30 -03:00
..
arch perf tools: Assign default value for some pointers 2015-05-27 12:21:45 -03:00
bench perf bench numa: Share sched_getcpu() __weak def with cloexec.c 2015-05-18 12:36:46 -03:00
config perf tools: Improve setting of gcc debug option 2015-05-27 12:21:45 -03:00
Documentation perf tools: Document relation of per-thread event count feature 2015-05-12 09:59:48 -03:00
python perf python: Remove duplicate TID bit from mask 2013-08-07 17:35:25 -03:00
scripts perf build: Add scripts objects building 2015-02-12 11:49:53 -03:00
tests perf tools: Introduce struct maps 2015-05-27 20:21:41 -03:00
ui perf tools: Move TUI-specific fields out of map_symbol 2015-05-05 18:13:24 -03:00
util perf tools: Reference count struct map 2015-05-27 20:27:30 -03:00
.gitignore perf build: Use FEATURE-DUMP instead of PERF-FEATURES in the .gitignore file 2015-03-20 17:49:51 -03:00
Build perf tools: Add new 'perf data' command 2015-02-25 12:42:25 -03:00
builtin-annotate.c perf tools: Check if a map is still in use when deleting it 2015-05-27 20:27:16 -03:00
builtin-bench.c perf bench futex: Support parallel waker threads 2015-05-08 16:23:50 -03:00
builtin-buildid-cache.c perf buildid-cache: Show usage with incorrect params 2015-02-27 15:52:40 -03:00
builtin-buildid-list.c perf tools: Hit all build ids when AUX area tracing 2015-05-04 19:49:42 -03:00
builtin-data.c perf data: Support using -f to override perf.data file ownership for 'convert' 2015-04-02 13:18:52 -03:00
builtin-diff.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-evlist.c perf evlist: Support using -f to override perf.data file ownership 2015-04-02 13:18:45 -03:00
builtin-help.c perf tools: Add the bash completion for listing subsubcommands of perf help 2015-03-19 13:49:39 -03:00
builtin-inject.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-kmem.c perf kmem: Fix compiler warning about may be accessing uninitialized variable 2015-05-12 09:59:47 -03:00
builtin-kvm.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-list.c perf list: Extend raw-dump to certain kind of events 2015-02-27 15:52:24 -03:00
builtin-lock.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-mem.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-probe.c perf probe: Add --range option to show a variable's location range 2015-05-12 09:59:50 -03:00
builtin-record.c perf record: Add AUX area tracing Snapshot Mode support 2015-05-05 18:13:01 -03:00
builtin-report.c perf hists: Reducing arguments of hist_entry_iter__add() 2015-05-27 12:21:43 -03:00
builtin-sched.c perf sched: Add option to merge like comms to lat output 2015-05-27 12:21:45 -03:00
builtin-script.c perf machine: Protect the machine->threads with a rwlock 2015-05-08 16:19:27 -03:00
builtin-stat.c perf stat: Add metrics support for exclude_idle 2015-04-29 10:38:06 -03:00
builtin-timechart.c perf tools: Elliminate alignment holes 2015-05-18 10:17:33 -03:00
builtin-top.c perf hists: Reducing arguments of hist_entry_iter__add() 2015-05-27 12:21:43 -03:00
builtin-trace.c perf trace: Fix the build on older distros 2015-05-14 19:27:46 -03:00
builtin.h perf tools: Add new 'perf data' command 2015-02-25 12:42:25 -03:00
command-list.txt perf tools: Add new 'perf data' command 2015-02-25 12:42:25 -03:00
CREDITS
design.txt perf tools: Update some code references in design.txt 2014-03-18 18:17:06 -03:00
Makefile perf tools: Use getconf to determine number of online CPUs 2015-05-04 12:43:40 -03:00
Makefile.perf perf tools: Separate the tests and tools in installation 2015-05-27 12:21:43 -03:00
MANIFEST tools include: Add basic atomic.h implementation from the kernel sources 2015-05-08 16:11:05 -03:00
perf-archive.sh perf archive: Make 'f' the last parameter for tar 2012-09-17 13:10:42 -03:00
perf-completion.sh perf tools: Avoid confusion with preloaded bash function for perf bash completion 2015-03-19 13:53:27 -03:00
perf-read-vdso.c perf tools: Build programs to copy 32-bit compatibility 2014-10-29 10:32:48 -02:00
perf-sys.h perf tools: Move generic barriers out of perf-sys.h 2015-05-08 16:05:08 -03:00
perf-with-kcore.sh perf tools: Add perf-with-kcore script 2014-09-17 17:08:08 -03:00
perf.c perf tools: Fix the bash completion problem of 'perf --*' 2015-02-27 15:52:28 -03:00
perf.h perf tools: Add AUX area tracing Snapshot Mode 2015-05-05 18:13:00 -03:00