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    SubjectRe: [PATCH 2/3] ptrace: cleanup check/set of PT_PTRACED during attach

    * Oleg Nesterov <> wrote:

    > ptrace_attach() and ptrace_traceme() are the last functions which
    > look as if the untraced task can have task->ptrace != 0, this must
    > not be possible. Change the code to just check ->ptrace != 0 and
    > s/|=/=/ to set PT_PTRACED.
    > Also, a couple of trivial whitespace cleanups in ptrace_attach().
    > And move ptrace_traceme() up near ptrace_attach() to keep them
    > close to each other.

    btw., while at it, please also fix the typos in
    include/linux/ptrace.h's PT_* flags section:

    * Ptrace flags
    * The owner ship rules for task->ptrace which holds the ptrace
    * flags is simple. When a task is running it owns it's task->ptrace
    * flags. When the a task is stopped the ptracer owns task->ptrace.

    s/owner ship/ownership



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