Namhyung Kim 473f742e18 perf tools: Use scandir() to iterate threads when synthesizing PERF_RECORD_ events ... Like in __event__synthesize_thread(), I think it's better to use scandir() instead of the readdir() loop. In case some malicious task continues to create new threads, the readdir() loop will run over and over to collect tids. The scandir() also has the problem but the window is much smaller since it doesn't do much work during the iteration. Also add filter_task() function as we only care the tasks. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20210202090118.2008551-4-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2021-02-03 13:10:44 -03:00
..
arch	perf stat: Add Topdown metrics events as default events	2021-02-03 13:10:43 -03:00
bench	tools arch: Update arch/x86/lib/mem{cpy,set}_64.S copies used in 'perf bench mem memcpy'	2020-11-12 17:55:41 -03:00
Documentation	perf script: Support DSO filter like in other perf tools	2021-02-03 13:10:43 -03:00
examples/bpf	perf bpf examples: Fix bpf.h header include directive in 5sec.c example	2021-01-15 16:31:46 -03:00
include/bpf	perf bpf: Remove bpf/ subdir from bpf.h headers used to build bpf events	2020-02-18 10:13:28 -03:00
jvmti	perf jvmti: Remove redundant jitdump line table entries	2020-05-29 16:51:38 -03:00
pmu-events	perf vendor events arm64: Reference common and uarch events for A76	2021-02-03 13:10:44 -03:00
python	tweewide: Fix most Shebang lines	2020-12-08 23:30:04 +09:00
scripts	perf script: Add min, max to futex-contention output, in addition to avg	2020-09-23 12:58:53 -03:00
tests	perf test: Add parse-metric memory bandwidth testcase	2021-02-03 13:10:27 -03:00
trace	tools arch x86: Sync the msr-index.h copy with the kernel sources	2020-12-24 09:24:19 -03:00
ui	perf evlist: Use the right prefix for 'struct evlist' event selection methods	2020-11-30 15:01:08 -03:00
util	perf tools: Use scandir() to iterate threads when synthesizing PERF_RECORD_ events	2021-02-03 13:10:44 -03:00
.gitignore	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
Build
builtin-annotate.c	perf evlist: Use the right prefix for 'struct evlist' event group methods	2020-11-30 15:00:12 -03:00
builtin-bench.c	perf bench: Add build-id injection benchmark	2020-10-13 10:59:42 -03:00
builtin-buildid-cache.c	perf buildid-cache: Add --debuginfod option to specify a server to fetch debug files	2020-12-28 12:20:39 -03:00
builtin-buildid-list.c	perf buildid-list: Add support for mmap2's buildid events	2020-12-28 12:23:09 -03:00
builtin-c2c.c	perf c2c: Add local variables for output metrics	2021-01-20 14:34:20 -03:00
builtin-config.c	perf tools: Remove util.h from where it is not needed	2019-09-20 09:19:20 -03:00
builtin-data.c	perf data: Add support to store time of day in CTF data conversion	2020-08-06 09:43:37 -03:00
builtin-diff.c	perf evlist: Use the right prefix for 'struct evlist' diff methods	2020-11-30 15:18:48 -03:00
builtin-evlist.c	perf evlist: Support pipe mode display	2020-12-17 14:36:17 -03:00
builtin-ftrace.c	perf evlist: Use the right prefix for 'struct evlist' create maps methods	2020-11-30 14:56:52 -03:00
builtin-help.c
builtin-inject.c	Merge remote-tracking branch 'torvalds/master' into perf/core	2020-11-30 08:56:55 -03:00
builtin-kallsyms.c
builtin-kmem.c	perf evlist: Use the right prefix for 'struct evlist' 'find' methods	2020-11-30 09:48:07 -03:00
builtin-kvm.c	perf evlist: Use the right prefix for 'struct evlist' mmap pages parsing method	2020-11-30 15:15:30 -03:00
builtin-list.c	perf list: Remove dead code in argument check	2020-09-09 11:12:10 -03:00
builtin-lock.c	perf lock: Don't free "lock_seq_stat" if read_count isn't zero	2020-11-12 17:55:41 -03:00
builtin-mem.c	perf mem: Support data page size	2021-01-20 14:34:20 -03:00
builtin-probe.c	perf probe: Do not show the skipped events	2020-05-28 10:03:24 -03:00
builtin-record.c	perf tools: Add 'ping' control command	2021-01-20 14:34:21 -03:00
builtin-report.c	perf report: Support --header-only for pipe mode	2020-12-17 14:36:17 -03:00
builtin-sched.c	perf evlist: Use the right prefix for 'struct evlist' 'find' methods	2020-11-30 09:48:07 -03:00
builtin-script.c	perf script: Support DSO filter like in other perf tools	2021-02-03 13:10:43 -03:00
builtin-stat.c	perf stat: Add Topdown metrics events as default events	2021-02-03 13:10:43 -03:00
builtin-timechart.c	perf tools: Replace zero-length array with flexible-array	2020-05-28 10:03:27 -03:00
builtin-top.c	perf evlist: Use the right prefix for 'struct evlist' mmap pages parsing method	2020-11-30 15:15:30 -03:00
builtin-trace.c	perf evlist: Use the right prefix for 'struct evlist' mmap pages parsing method	2020-11-30 15:15:30 -03:00
builtin-version.c	perf version: Add a feature for libpfm4	2020-11-04 09:42:40 -03:00
builtin.h
check-headers.sh	perf s390: Move syscall.tbl check into check-headers.sh	2020-12-24 09:24:20 -03:00
command-list.txt
CREDITS
design.txt	perf tools: Support CAP_PERFMON capability	2020-04-16 12:19:08 -03:00
Makefile	tools: Let O= makes handle a relative path with -C option	2020-03-06 17:08:28 -03:00
Makefile.config	perf build: Support build BPF skeletons with perf	2021-01-15 15:49:07 -03:00
Makefile.perf	perf stat: Enable counting events for BPF programs	2021-01-20 14:25:28 -03:00
MANIFEST	libperf: Move to tools/lib/perf	2020-01-06 11:46:09 -03:00
perf-archive.sh
perf-completion.sh
perf-read-vdso.c
perf-sys.h	perf tests: Call test_attr__open() directly	2020-09-10 11:55:37 -03:00
perf-with-kcore.sh
perf.c	libperf: Merge libperf_set_print() into libperf_init()	2019-09-25 09:51:49 -03:00
perf.h