[Bug kprobes/10869] kretprobes waste a lot of memory on kretprobe_instances

[ananth at in dot ibm dot com]

------- Additional Comments From ananth at in dot ibm dot com  2009-10-30 07:29 -------
Created an attachment (id=4344)
 --> (http://sourceware.org/bugzilla/attachment.cgi?id=4344&action=view)
Be smarter in allocating kretprobe instances

All along, kretprobes would allocate NR_CPU kretprobe_instance structures. Use
a more logical num_possible_cpus() instead.

If this patch is acceptable, I'll post it upstream.

Jim, Masami?

-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=10869

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