diff options
Diffstat (limited to 'lib/percpu_counter.c')
| -rw-r--r-- | lib/percpu_counter.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c index 71b265c330ce..dba1530a5b29 100644 --- a/lib/percpu_counter.c +++ b/lib/percpu_counter.c @@ -52,7 +52,7 @@ EXPORT_SYMBOL(__percpu_counter_add); * Add up all the per-cpu counts, return the result. This is a more accurate * but much slower version of percpu_counter_read_positive() */ -s64 __percpu_counter_sum(struct percpu_counter *fbc) +s64 __percpu_counter_sum(struct percpu_counter *fbc, int set) { s64 ret; int cpu; @@ -62,9 +62,11 @@ s64 __percpu_counter_sum(struct percpu_counter *fbc) for_each_online_cpu(cpu) { s32 *pcount = per_cpu_ptr(fbc->counters, cpu); ret += *pcount; - *pcount = 0; + if (set) + *pcount = 0; } - fbc->count = ret; + if (set) + fbc->count = ret; spin_unlock(&fbc->lock); return ret; |