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    SubjectRe: [PATCH -tip 3/3] kprobes: cleanup: use list instead of hlist for insn_pages

    * Masami Hiramatsu <mhiramat@redhat.com> wrote:

    > Use struct list instead of struct hlist for managing insn_pages,
    > because insn_pages doesn't use hash table.

    > struct kprobe_insn_page {
    > - struct hlist_node hlist;
    > + struct list_head list;

    Hm, you know that this increases the size of kprobe_insn_page by 4/8
    bytes, right?

    hlists are not just used for hashes - but also when we want a more
    compact / smaller list head.

    How many kprobe_insn_page's can be allocated in the system,
    maximally?

    Ingo


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