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-rw-r--r--block/cfq-iosched.c37
1 files changed, 10 insertions, 27 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 49913804e8dd..effd89489506 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -624,29 +624,12 @@ static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
struct blkio_policy_type *pol, uint64_t bytes,
bool direction, bool sync)
{
+ struct blkio_group_stats *stats = &blkg->pd[pol->plid]->stats;
int rw = (direction ? REQ_WRITE : 0) | (sync ? REQ_SYNC : 0);
- struct blkg_policy_data *pd = blkg->pd[pol->plid];
- struct blkio_group_stats_cpu *stats_cpu;
- unsigned long flags;
- /* If per cpu stats are not allocated yet, don't do any accounting. */
- if (pd->stats_cpu == NULL)
- return;
-
- /*
- * Disabling interrupts to provide mutual exclusion between two
- * writes on same cpu. It probably is not needed for 64bit. Not
- * optimizing that case yet.
- */
- local_irq_save(flags);
-
- stats_cpu = this_cpu_ptr(pd->stats_cpu);
-
- blkg_stat_add(&stats_cpu->sectors, bytes >> 9);
- blkg_rwstat_add(&stats_cpu->serviced, rw, 1);
- blkg_rwstat_add(&stats_cpu->service_bytes, rw, bytes);
-
- local_irq_restore(flags);
+ blkg_stat_add(&stats->sectors, bytes >> 9);
+ blkg_rwstat_add(&stats->serviced, rw, 1);
+ blkg_rwstat_add(&stats->service_bytes, rw, bytes);
}
static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg,
@@ -1520,20 +1503,20 @@ static struct cftype cfq_blkcg_files[] = {
{
.name = "sectors",
.private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct blkio_group_stats_cpu, sectors)),
- .read_seq_string = blkcg_print_cpu_stat,
+ offsetof(struct blkio_group_stats, sectors)),
+ .read_seq_string = blkcg_print_stat,
},
{
.name = "io_service_bytes",
.private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct blkio_group_stats_cpu, service_bytes)),
- .read_seq_string = blkcg_print_cpu_rwstat,
+ offsetof(struct blkio_group_stats, service_bytes)),
+ .read_seq_string = blkcg_print_rwstat,
},
{
.name = "io_serviced",
.private = BLKCG_STAT_PRIV(BLKIO_POLICY_PROP,
- offsetof(struct blkio_group_stats_cpu, serviced)),
- .read_seq_string = blkcg_print_cpu_rwstat,
+ offsetof(struct blkio_group_stats, serviced)),
+ .read_seq_string = blkcg_print_rwstat,
},
{
.name = "io_service_time",