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Lai Jiangshan authored
atomic_inc_not_zero(v) return 0 if *v = 0. use spin_lock instead of write_lock for update lock. Signed-off-by:
Lai Jiangshan <laijs@cn.fujitsu.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by:
Ingo Molnar <mingo@elte.hu>
e8aed686