diff options
Diffstat (limited to 'block/blk-wbt.c')
| -rw-r--r-- | block/blk-wbt.c | 17 |
1 files changed, 4 insertions, 13 deletions
diff --git a/block/blk-wbt.c b/block/blk-wbt.c index 0bb613139bec..0c0e270a8265 100644 --- a/block/blk-wbt.c +++ b/block/blk-wbt.c @@ -84,8 +84,6 @@ struct rq_wb { u64 sync_issue; void *sync_cookie; - unsigned int wc; - unsigned long last_issue; /* last non-throttled issue */ unsigned long last_comp; /* last non-throttled comp */ unsigned long min_lat_nsec; @@ -165,9 +163,9 @@ static void wb_timestamp(struct rq_wb *rwb, unsigned long *var) */ static bool wb_recent_wait(struct rq_wb *rwb) { - struct bdi_writeback *wb = &rwb->rqos.disk->bdi->wb; + struct backing_dev_info *bdi = rwb->rqos.disk->bdi; - return time_before(jiffies, wb->dirty_sleep + HZ); + return time_before(jiffies, bdi->last_bdp_sleep + HZ); } static inline struct rq_wait *get_rq_wait(struct rq_wb *rwb, @@ -207,7 +205,8 @@ static void wbt_rqw_done(struct rq_wb *rwb, struct rq_wait *rqw, */ if (wb_acct & WBT_DISCARD) limit = rwb->wb_background; - else if (rwb->wc && !wb_recent_wait(rwb)) + else if (test_bit(QUEUE_FLAG_WC, &rwb->rqos.disk->queue->queue_flags) && + !wb_recent_wait(rwb)) limit = 0; else limit = rwb->wb_normal; @@ -699,13 +698,6 @@ static void wbt_requeue(struct rq_qos *rqos, struct request *rq) } } -void wbt_set_write_cache(struct request_queue *q, bool write_cache_on) -{ - struct rq_qos *rqos = wbt_rq_qos(q); - if (rqos) - RQWB(rqos)->wc = write_cache_on; -} - /* * Enable wbt if defaults are configured that way */ @@ -918,7 +910,6 @@ int wbt_init(struct gendisk *disk) rwb->last_comp = rwb->last_issue = jiffies; rwb->win_nsec = RWB_WINDOW_NSEC; rwb->enable_state = WBT_STATE_ON_DEFAULT; - rwb->wc = test_bit(QUEUE_FLAG_WC, &q->queue_flags); rwb->rq_depth.default_depth = RWB_DEF_DEPTH; rwb->min_lat_nsec = wbt_default_latency_nsec(q); rwb->rq_depth.queue_depth = blk_queue_depth(q); |