Jiang Liu da5cc7d338 zram: use atomic64_xxx() to replace zram_stat64_xxx()
Use atomic64_xxx() to replace open-coded zram_stat64_xxx().
Some architectures have native support of atomic64 operations,
so we can get rid of the spin_lock() in zram_stat64_xxx().
On the other hand, for platforms use generic version of atomic64
implement, it may cause an extra save/restore of the interrupt
flag.  So it's a tradeoff.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-06-06 12:12:21 -07:00
..
2013-05-27 10:54:33 +09:00
2013-05-27 10:54:33 +09:00
2013-05-05 00:15:43 -04:00