Introduce ptr_eq() to compare two addresses while preserving the address dependencies for later use of the address. It should be used when comparing an address returned by rcu_dereference().
Thanks, Mathieu Cc: Greg Kroah-Hartman <[email protected]> Cc: Sebastian Andrzej Siewior <[email protected]> Cc: "Paul E. McKenney" <[email protected]> Cc: Will Deacon <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Boqun Feng <[email protected]> Cc: Alan Stern <[email protected]> Cc: John Stultz <[email protected]> Cc: Neeraj Upadhyay <[email protected]> Cc: Boqun Feng <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Joel Fernandes <[email protected]> Cc: Josh Triplett <[email protected]> Cc: Uladzislau Rezki <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Lai Jiangshan <[email protected]> Cc: Zqiang <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Waiman Long <[email protected]> Cc: Mark Rutland <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: [email protected] Cc: Mateusz Guzik <[email protected]> Cc: Gary Guo <[email protected]> Cc: Jonas Oberhauser <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: Nikita Popov <[email protected]> Cc: [email protected] Mathieu Desnoyers (2): compiler.h: Introduce ptr_eq() to preserve address dependency Documentation: RCU: Refer to ptr_eq() Documentation/RCU/rcu_dereference.rst | 32 +++++++++++--- include/linux/compiler.h | 63 +++++++++++++++++++++++++++ 2 files changed, 90 insertions(+), 5 deletions(-) -- 2.39.2
