openvswitch: change the data type of error status to atomic_long_t
authorLi RongQing <roy.qing.li@gmail.com>
Sat, 6 Sep 2014 11:06:11 +0000 (19:06 +0800)
committerDavid S. Miller <davem@davemloft.net>
Tue, 9 Sep 2014 18:48:07 +0000 (11:48 -0700)
commite403aded79a1bfb610adc53490ded8d2058f9daf
treedd65f6d8b16bb8c64e4c1c47cf0f3cb36d5e5584
parent5aaa62d608464bedb30afc62e5073629de505afb
openvswitch: change the data type of error status to atomic_long_t

Change the date type of error status from u64 to atomic_long_t, and use atomic
operation, then remove the lock which is used to protect the error status.

The operation of atomic maybe faster than spin lock.

Cc: Pravin Shelar <pshelar@nicira.com>
Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/openvswitch/vport.c
net/openvswitch/vport.h