summaryrefslogtreecommitdiff
path: root/block/blk-wbt.h
diff options
context:
space:
mode:
authorYu Kuai <yukuai3@huawei.com>2023-05-27 09:06:40 +0800
committerJens Axboe <axboe@kernel.dk>2023-06-26 09:53:36 -0600
commit645a829e03384a235b3760959d4ebe420a0f2027 (patch)
treebee82941f88b81d28568d96fd2b26bfd9a6207d2 /block/blk-wbt.h
parentc6b7a3a26e809c9d2a51ae303764c1d2994f31cf (diff)
blk-wbt: don't create wbt sysfs entry if CONFIG_BLK_WBT is disabled
sysfs entry /sys/block/[device]/queue/wbt_lat_usec will be created even if CONFIG_BLK_WBT is disabled, while read and write will always fail. It doesn't make sense to create a sysfs entry that can't be accessed, so don't create such entry. Signed-off-by: Yu Kuai <yukuai3@huawei.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Link: https://lore.kernel.org/r/20230527010644.647900-2-yukuai1@huaweicloud.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-wbt.h')
-rw-r--r--block/blk-wbt.h19
1 files changed, 0 insertions, 19 deletions
diff --git a/block/blk-wbt.h b/block/blk-wbt.h
index ba6cca5849a6..8a029e138f7a 100644
--- a/block/blk-wbt.h
+++ b/block/blk-wbt.h
@@ -18,10 +18,6 @@ u64 wbt_default_latency_nsec(struct request_queue *);
#else
-static inline int wbt_init(struct gendisk *disk)
-{
- return -EINVAL;
-}
static inline void wbt_disable_default(struct gendisk *disk)
{
}
@@ -31,21 +27,6 @@ static inline void wbt_enable_default(struct gendisk *disk)
static inline void wbt_set_write_cache(struct request_queue *q, bool wc)
{
}
-static inline u64 wbt_get_min_lat(struct request_queue *q)
-{
- return 0;
-}
-static inline void wbt_set_min_lat(struct request_queue *q, u64 val)
-{
-}
-static inline u64 wbt_default_latency_nsec(struct request_queue *q)
-{
- return 0;
-}
-static inline bool wbt_disabled(struct request_queue *q)
-{
- return true;
-}
#endif /* CONFIG_BLK_WBT */