blk-stat: kill blk_stat_rq_ddir()
No point in providing and exporting this helper. There's just
one (real) user of it, just use rq_data_dir().
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/block/blk-mq.c b/block/blk-mq.c
index fa7d86f..0b2f604 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -46,7 +46,7 @@
{
int ddir, bytes, bucket;
- ddir = blk_stat_rq_ddir(rq);
+ ddir = rq_data_dir(rq);
bytes = blk_rq_bytes(rq);
bucket = ddir + 2*(ilog2(bytes) - 9);
diff --git a/block/blk-stat.c b/block/blk-stat.c
index dde9d39..6c2f409 100644
--- a/block/blk-stat.c
+++ b/block/blk-stat.c
@@ -19,12 +19,6 @@
bool enable_accounting;
};
-int blk_stat_rq_ddir(const struct request *rq)
-{
- return rq_data_dir(rq);
-}
-EXPORT_SYMBOL_GPL(blk_stat_rq_ddir);
-
static void blk_stat_init(struct blk_rq_stat *stat)
{
stat->min = -1ULL;
diff --git a/block/blk-stat.h b/block/blk-stat.h
index 622a62c..2fb20d1 100644
--- a/block/blk-stat.h
+++ b/block/blk-stat.h
@@ -112,17 +112,6 @@
/* record time/size info in request but not add a callback */
void blk_stat_enable_accounting(struct request_queue *q);
-/*
- * blk_stat_rq_ddir() - Bucket callback function for the request data direction.
- * @rq: Request.
- *
- * This is the same as rq_data_dir() but as a function so it can be used as
- * @bucket_fn for blk_stat_alloc_callback().
- *
- * Return: Data direction of the request, either READ or WRITE.
- */
-int blk_stat_rq_ddir(const struct request *rq);
-
/**
* blk_stat_alloc_callback() - Allocate a block statistics callback.
* @timer_fn: Timer callback function.
diff --git a/block/blk-wbt.c b/block/blk-wbt.c
index 26e1bb6..17676f4 100644
--- a/block/blk-wbt.c
+++ b/block/blk-wbt.c
@@ -696,6 +696,11 @@
return 75000000ULL;
}
+static int wbt_data_dir(const struct request *rq)
+{
+ return rq_data_dir(rq);
+}
+
int wbt_init(struct request_queue *q)
{
struct rq_wb *rwb;
@@ -707,7 +712,7 @@
if (!rwb)
return -ENOMEM;
- rwb->cb = blk_stat_alloc_callback(wb_timer_fn, blk_stat_rq_ddir, 2, rwb);
+ rwb->cb = blk_stat_alloc_callback(wb_timer_fn, wbt_data_dir, 2, rwb);
if (!rwb->cb) {
kfree(rwb);
return -ENOMEM;