diff options
Diffstat (limited to 'kernel/res_counter.c')
| -rw-r--r-- | kernel/res_counter.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/res_counter.c b/kernel/res_counter.c index c7eaa37a768..34683efa2cc 100644 --- a/kernel/res_counter.c +++ b/kernel/res_counter.c @@ -126,10 +126,24 @@ ssize_t res_counter_read(struct res_counter *counter, int member, pos, buf, s - buf); } +#if BITS_PER_LONG == 32 +u64 res_counter_read_u64(struct res_counter *counter, int member) +{ + unsigned long flags; + u64 ret; + + spin_lock_irqsave(&counter->lock, flags); + ret = *res_counter_member(counter, member); + spin_unlock_irqrestore(&counter->lock, flags); + + return ret; +} +#else u64 res_counter_read_u64(struct res_counter *counter, int member) { return *res_counter_member(counter, member); } +#endif int res_counter_memparse_write_strategy(const char *buf, unsigned long long *res) |