diff options
| author | Ananth N Mavinakayanahalli <[email protected]> | 2009-10-30 19:23:10 +0530 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-11-02 17:00:18 +0100 |
| commit | 4dae560f97fa438f373b53e14b30149c9e44a600 (patch) | |
| tree | 4408896d10c483e0f855636f8b9e208bd856d6fc /tools/perf/scripts/python/check-perf-trace.py | |
| parent | 5e9b397292ca0b9409dced33e3a22ec993377064 (diff) | |
kprobes: Sanitize struct kretprobe_instance allocations
For as long as kretprobes have existed, we've allocated NR_CPUS
instances of kretprobe_instance structures. With the default
value of CONFIG_NR_CPUS increasing on certain architectures, we
are potentially wasting kernel memory.
See http://sourceware.org/bugzilla/show_bug.cgi?id=10839#c3 for
more details.
Use a saner num_possible_cpus() instead of NR_CPUS for
allocation.
Signed-off-by: Ananth N Mavinakayanahalli <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Cc: Jim Keniston <[email protected]>
Cc: [email protected]
LKML-Reference: <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions