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Jiang Liu authored
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>
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