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SubjectRe: [RFC][v6][PATCH 0/9] clone_with_pids() syscall
| Also, if you're passing a struct, why not put nr_pids in there, and
| replace clone_pid_struct with a simple array? That would give us
| struct clone_struct {
| u64 flags;
| u64 child_stack;
| u32 child_tid;
| u32 parent_tid;
| u32 nr_pids;
| u32 reserved1;
| u64 reserved2;
| };
| int clone2(struct clone_struct *cs, pid_t *pids);

My only concern with this approach was the extra copy_from_user() in the
common case (i.e when not using the extended features). I assume the
overhead of copy_from_user() is small enough to be ignored ?



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