The patchset still modifies the semantics of this_cpu operations semantics replacing the lockless RMV operations with locked ones. One of the rationales for the use this_cpu operations is their efficiency since locked RMV atomics are avoided. This patchset destroys that functionality. If you want locked RMV semantics then use them through cmpxchg() and friends. Do not modify this_cpu operations by changing the implementation in the arch code.
