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Subject[PATCH BUGFIX V2 5/7] block, bfq: remove ifdefs from around gets/puts of bfq groups
Date
ifdefs around gets and puts of bfq groups reduce readability, remove them.

Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Paolo Valente <paolo.valente@linaro.org>
---
block/bfq-cgroup.c | 4 ++++
block/bfq-iosched.c | 6 +-----
block/bfq-iosched.h | 1 +
3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index c818c64766e5..cae488b58049 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -1406,6 +1406,10 @@ struct bfq_group *bfqq_group(struct bfq_queue *bfqq)
return bfqq->bfqd->root_group;
}

+void bfqg_and_blkg_get(struct bfq_group *bfqg) {}
+
+void bfqg_and_blkg_put(struct bfq_group *bfqg) {}
+
struct bfq_group *bfq_create_group_hierarchy(struct bfq_data *bfqd, int node)
{
struct bfq_group *bfqg;
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 28770ec7c06f..fff76c920968 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -4825,9 +4825,7 @@ void bfq_put_queue(struct bfq_queue *bfqq)
{
struct bfq_queue *item;
struct hlist_node *n;
-#ifdef CONFIG_BFQ_GROUP_IOSCHED
struct bfq_group *bfqg = bfqq_group(bfqq);
-#endif

if (bfqq->bfqd)
bfq_log_bfqq(bfqq->bfqd, bfqq, "put_queue: %p %d",
@@ -4900,9 +4898,7 @@ void bfq_put_queue(struct bfq_queue *bfqq)
bfqq->bfqd->last_completed_rq_bfqq = NULL;

kmem_cache_free(bfq_pool, bfqq);
-#ifdef CONFIG_BFQ_GROUP_IOSCHED
bfqg_and_blkg_put(bfqg);
-#endif
}

static void bfq_put_cooperator(struct bfq_queue *bfqq)
@@ -6390,10 +6386,10 @@ static void bfq_exit_queue(struct elevator_queue *e)

hrtimer_cancel(&bfqd->idle_slice_timer);

-#ifdef CONFIG_BFQ_GROUP_IOSCHED
/* release oom-queue reference to root group */
bfqg_and_blkg_put(bfqd->root_group);

+#ifdef CONFIG_BFQ_GROUP_IOSCHED
blkcg_deactivate_policy(bfqd->queue, &blkcg_policy_bfq);
#else
spin_lock_irq(&bfqd->lock);
diff --git a/block/bfq-iosched.h b/block/bfq-iosched.h
index f1cb89def7f8..2c7cec737b2a 100644
--- a/block/bfq-iosched.h
+++ b/block/bfq-iosched.h
@@ -921,6 +921,7 @@ struct bfq_group {

#else
struct bfq_group {
+ struct bfq_entity entity;
struct bfq_sched_data sched_data;

struct bfq_queue *async_bfqq[2][IOPRIO_BE_NR];
--
2.20.1
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