linux/tools
Ian Rogers d9eba1d5b5 perf trace-event: Reuse an already parsed tracepoint format
tp_format() read and parsed the format file on every call. Each parse
registers another tep_event with the global tep handle, and
libtraceevent has no way to free an individual event, only the whole
handle, so a repeated lookup of the same tracepoint both redoes the
work of reading and parsing the file and leaves a duplicate behind for
the rest of the session.

Ask the handle for the event first with tep_find_event_by_name() and
only fall back to reading the format file when it has not been parsed
yet. The handle holds formats for the running kernel alone, so a name
that is found is the same format that would have been read.

Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2026-09-25 14:57:52 +02:00
..
accounting tools/accounting: fix macro typos in getdelays 2026-08-03 21:10:17 -07:00
arch perf headers: Sync perf_event.h/perf_regs.h with the kernel headers 2026-09-14 15:32:52 -03:00
bootconfig Bootconfig updates for v7.3: 2026-08-25 08:59:09 -07:00
bpf perf tools updates for v7.3 2026-08-22 08:47:50 -07:00
build tools build: Fix timerfd feature detection with clang 2026-09-12 17:22:18 -03:00
certs
cgroup
counter
crypto
debugging
dma
docs doc tools: fix 'path' typos 2026-08-11 10:43:16 -06:00
firewire
firmware
gpio
hv
iio iio: types: add IIO_VOLUMEFLOW channel type 2026-08-05 00:02:55 +01:00
include perf headers: Sync perf_event.h/perf_regs.h with the kernel headers 2026-09-14 15:32:52 -03:00
kvm/kvm_stat
laptop
leds
lib perf record: Fix unhandled POLLHUP on non_perf_event descriptors 2026-09-17 12:27:34 -03:00
memory-model
mm mm.git review status for master..mm-nonmm-stable 2026-08-23 08:07:11 -07:00
net Including fixes from Bluetooth, IPSec and Netfilter. 2026-08-27 13:53:43 -07:00
objtool Rust fixes for v7.3 2026-08-30 09:47:39 -07:00
pcmcia
perf perf trace-event: Reuse an already parsed tracepoint format 2026-09-25 14:57:52 +02:00
platform/x86/amd
power linux-cpupower-7.3-rc1 2026-08-05 13:53:51 +02:00
rcu
sched
sched_ext sched_ext: Check bpf_timer_start return values in scx_qmap 2026-08-31 06:47:39 -10:00
scripts perf tools updates for v7.3 2026-08-22 08:47:50 -07:00
sound
spi
testing bpf-fixes 2026-09-06 13:49:44 -07:00
thermal
time
tracing rtla/cli: Unify and improve handling of invalid option arguments 2026-08-05 10:14:40 +02:00
unittests
usb
verification verification/rvgen: Use .old instead of .bak for kunit backup files 2026-08-25 13:56:53 +02:00
virtio tools/virtio: Fix control typo in trace agent comment 2026-08-19 06:38:48 -04:00
wmi
workqueue tools/workqueue/wq_dump.py: Support backward compatibility for wq->attrs rename 2026-08-31 10:17:08 -10:00
writeback
Makefile