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https://github.com/torvalds/linux
13 June 2022, 11:31:42 UTC
Revision 3cb4d5e00e037c70f239173bdd399a7e6040830f authored by Riccardo Mancini on 15 July 2021, 16:07:22 UTC, committed by Arnaldo Carvalho de Melo on 15 July 2021, 20:35:18 UTC 
perf trace: Free syscall tp fields in evsel->priv
 
ASan reports several memory leaks running:

  # perf test "88: Check open filename arg using perf trace + vfs_getname"

The third of these leaks is related to evsel->priv fields of sycalls
never being deallocated.

This patch adds the function evlist__free_syscall_tp_fields which
iterates over all evsels in evlist, matching syscalls, and calling the
missing frees.

This new function is called at the end of trace__run, right before
calling evlist__delete.

Signed-off-by: Riccardo Mancini <rickyman7@gmail.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/46526611904ec5ff2768b59014e3afce8e0197d1.1626343282.git.rickyman7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
1 parent f2ebf8f
History
Tip revision: 3cb4d5e00e037c70f239173bdd399a7e6040830f authored by Riccardo Mancini on 15 July 2021, 16:07:22 UTC
perf trace: Free syscall tp fields in evsel->priv
Tip revision: 3cb4d5e
File Mode Size
acrn
auxdisplay
binderfs
bpf
configfs
connector
ftrace
hidraw
hw_breakpoint
kdb
kfifo
kmemleak
kobject
kprobes
landlock
livepatch
mei
nitro_enclaves
pidfd
pktgen
qmi
rpmsg
seccomp
timers
trace_events
trace_printk
uhid
v4l
vfio-mdev
vfs
watch_queue
watchdog
Kconfig -rw-r--r-- 6.9 KB
Makefile -rw-r--r-- 1.3 KB
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