diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-12-26 12:07:47 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-12-26 19:28:10 +0300 |
| commit | 5d13243820c457edf54a1fd848141ce7eb092671 (patch) | |
| tree | a19e42d2ac7f38f475df03a2073c3304a114fe95 /block/blk-wbt.c | |
| parent | 1c042f8d4bc342b7985b1de3d76836f1a1083b65 (diff) | |
| download | linux-5d13243820c457edf54a1fd848141ce7eb092671.tar.xz | |
blk-wbt: remove the separate write cache tracking
Use the queue wide write back cache tracking insted of duplicating the
value in strut rq_wb.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20231226090747.204969-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-wbt.c')
| -rw-r--r-- | block/blk-wbt.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/block/blk-wbt.c b/block/blk-wbt.c index 0bb613139bec..5ba3cd574eac 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; @@ -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); |