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SubjectRe: task_diag: add a new interface to get information about processes
I understand how reading /proc or /sys can be a bottleneck, but this
proposed method using a system call is the wrong way to do this.

Why not use netlink like other systems do which allows a message
based response which allows for future changes (no fixed datastructures),
and is message based.

Generic netlink has already been used by several other subsystems.

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