Krister Johansen aa33b9b9a2 perf callchain: Reference count maps ... If dso__load_kcore frees all of the existing maps, but one has already been attached to a callchain cursor node, then we can get a SIGSEGV in any function that happens to try to use this invalid cursor. Use the existing map refcount mechanism to forestall cleanup of a map until the cursor iterates past the node. Signed-off-by: Krister Johansen <kjlx@templeofstupid.com> Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: stable@kernel.org Fixes: 84c2cafa28 ("perf tools: Reference count struct map") Link: http://lkml.kernel.org/r/20170106062331.GB2707@templeofstupid.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2017-02-02 11:39:09 -03:00
..
Documentation	perf record: Fix --switch-output documentation and comment	2017-01-03 11:11:38 -03:00
arch	perf annotate: AArch64 support	2016-12-01 13:03:19 -03:00
bench	perf bench futex: Fix lock-pi help string	2016-12-20 09:37:40 -03:00
jvmti	perf kvmti: Remove unused Makefile file	2016-11-14 12:42:56 -03:00
pmu-events	perf vendor events: Support couple more POWER8 PVRs in mapfile	2016-10-17 13:39:47 -03:00
python	…
scripts	…
tests	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-12-23 16:49:12 -08:00
trace	perf trace: Check if MAP_32BIT is defined (again)	2016-12-20 09:37:40 -03:00
ui	perf diff: Fix -o/--order option behavior (again)	2017-02-02 11:39:09 -03:00
util	perf callchain: Reference count maps	2017-02-02 11:39:09 -03:00
.gitignore	…
Build	perf c2c: Add c2c command	2016-10-19 13:18:31 -03:00
CREDITS	…
MANIFEST	tools lib: Add for_each_clear_bit macro	2016-10-24 11:07:33 -03:00
Makefile	…
Makefile.config	perf build: Check LLVM version in feature check	2016-12-06 13:21:55 -03:00
Makefile.perf	perf/urgent fixes and one improvement:	2017-01-05 08:33:02 +01:00
builtin-annotate.c	perf annotate: Add branch stack / basic block	2016-09-08 13:44:03 -03:00
builtin-bench.c	…
builtin-buildid-cache.c	…
builtin-buildid-list.c	…
builtin-c2c.c	perf tools: Remove some needless __maybe_unused	2016-12-15 16:25:45 -03:00
builtin-config.c	perf config: Mark where are config items from (user or system)	2016-11-14 13:10:37 -03:00
builtin-data.c	…
builtin-diff.c	perf diff: Fix -o/--order option behavior (again)	2017-02-02 11:39:09 -03:00
builtin-evlist.c	…
builtin-help.c	…
builtin-inject.c	perf symbols: Remove symbol_filter_t machinery	2016-09-05 11:14:50 -03:00
builtin-kmem.c	mm: get rid of __GFP_OTHER_NODE	2017-01-10 18:31:55 -08:00
builtin-kvm.c	…
builtin-list.c	perf list: Support long jevents descriptions	2016-10-03 21:35:47 -03:00
builtin-lock.c	…
builtin-mem.c	perf mem: Fix --all-user/--all-kernel options	2016-12-15 16:25:45 -03:00
builtin-probe.c	…
builtin-record.c	perf record: Fix --switch-output documentation and comment	2017-01-03 11:11:38 -03:00
builtin-report.c	perf tools: Remove some needless __maybe_unused	2016-12-15 16:25:45 -03:00
builtin-sched.c	perf sched timehist: Show total scheduling time	2016-12-27 21:47:57 -03:00
builtin-script.c	perf script: Add option to specify time window of interest	2016-12-01 13:02:45 -03:00
builtin-stat.c	perf tools: Remove some needless __maybe_unused	2016-12-15 16:25:45 -03:00
builtin-timechart.c	…
builtin-top.c	perf annotate: Start supporting cross arch annotation	2016-11-17 17:12:50 -03:00
builtin-trace.c	perf trace: Update tid/pid filtering option to leverage symbol_conf	2016-11-25 16:04:22 -03:00
builtin-version.c	…
builtin.h	perf c2c: Add c2c command	2016-10-19 13:18:31 -03:00
check-headers.sh	perf tools: Move headers check into bash script	2016-12-15 16:25:44 -03:00
command-list.txt	…
design.txt	…
perf-archive.sh	…
perf-completion.sh	…
perf-read-vdso.c	…
perf-sys.h	perf powerpc: Fix build-test failure	2016-09-08 13:44:07 -03:00
perf-with-kcore.sh	…
perf.c	perf c2c: Add c2c command	2016-10-19 13:18:31 -03:00
perf.h	perf evsel: Allow to ignore missing pid	2016-12-15 16:25:46 -03:00