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perf hwmon_pmu: Switch event discovery to io_dir__readdir
authorIan Rogers <irogers@google.com>
Sat, 22 Feb 2025 06:10:12 +0000 (22:10 -0800)
committerNamhyung Kim <namhyung@kernel.org>
Mon, 24 Feb 2025 23:46:33 +0000 (15:46 -0800)
commitd996c726a5a4c794ed1d1e54702179d319d1c7e8
tree0218055a1a3a3f4df1a9bd7875d71952746121c0tree
parentbb327140f581887e03cdb1258bc4229fd2d7d9b9commit | diff
perf hwmon_pmu: Switch event discovery to io_dir__readdir

Avoid DIR allocations when scanning sysfs by using io_dir for the
readdir implementation, that allocates about 1kb on the stack.

Signed-off-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250222061015.303622-8-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
tools/perf/util/hwmon_pmu.c diff | blob | history
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