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Comparing pointers with reference count checking is tricky to avoid a SEGV. Add a convenience macro to simplify and use. Signed-off-by: Ian Rogers <[email protected]> Cc: K Prateek Nayak <[email protected]> Cc: Ravi Bangoria <[email protected]> Cc: Sandipan Das <[email protected]> Cc: Anshuman Khandual <[email protected]> Cc: German Gomez <[email protected]> Cc: James Clark <[email protected]> Cc: Nick Terrell <[email protected]> Cc: Sean Christopherson <[email protected]> Cc: Changbin Du <[email protected]> Cc: liuwenyu <[email protected]> Cc: Yang Jihong <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Miguel Ojeda <[email protected]> Cc: Song Liu <[email protected]> Cc: Leo Yan <[email protected]> Cc: Kajol Jain <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Kan Liang <[email protected]> Cc: Athira Rajeev <[email protected]> Cc: Yanteng Si <[email protected]> Cc: Liam Howlett <[email protected]> Cc: Paolo Bonzini <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Namhyung Kim <[email protected]>