diff options
| author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-10-23 12:02:47 +0200 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-10-23 12:10:05 +0200 |
| commit | 2e79e22e092acd55da0b2db066e4826d7d152c41 (patch) | |
| tree | e7ec9782c0b7831c511af711424126a2b9a4eb07 /block/blk-rq-qos.c | |
| parent | f1b4a9217efd61d0b84c6dc404596c8519ff6f59 (diff) | |
| parent | 7d194c2100ad2a6dded545887d02754948ca5241 (diff) | |
Merge v5.4-rc4 into drm-next
Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol
value") to be able to merge his dp_link patch series.
Some adjacent changes conflicts, plus some clashes in i915 due to
cherry-picking and git trying to be helpful and leaving both versions
in.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'block/blk-rq-qos.c')
| -rw-r--r-- | block/blk-rq-qos.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/block/blk-rq-qos.c b/block/blk-rq-qos.c index 61b635bc2a31..656460636ad3 100644 --- a/block/blk-rq-qos.c +++ b/block/blk-rq-qos.c @@ -160,24 +160,27 @@ bool rq_depth_calc_max_depth(struct rq_depth *rqd) return ret; } -void rq_depth_scale_up(struct rq_depth *rqd) +/* Returns true on success and false if scaling up wasn't possible */ +bool rq_depth_scale_up(struct rq_depth *rqd) { /* * Hit max in previous round, stop here */ if (rqd->scaled_max) - return; + return false; rqd->scale_step--; rqd->scaled_max = rq_depth_calc_max_depth(rqd); + return true; } /* * Scale rwb down. If 'hard_throttle' is set, do it quicker, since we - * had a latency violation. + * had a latency violation. Returns true on success and returns false if + * scaling down wasn't possible. */ -void rq_depth_scale_down(struct rq_depth *rqd, bool hard_throttle) +bool rq_depth_scale_down(struct rq_depth *rqd, bool hard_throttle) { /* * Stop scaling down when we've hit the limit. This also prevents @@ -185,7 +188,7 @@ void rq_depth_scale_down(struct rq_depth *rqd, bool hard_throttle) * keep up. */ if (rqd->max_depth == 1) - return; + return false; if (rqd->scale_step < 0 && hard_throttle) rqd->scale_step = 0; @@ -194,6 +197,7 @@ void rq_depth_scale_down(struct rq_depth *rqd, bool hard_throttle) rqd->scaled_max = false; rq_depth_calc_max_depth(rqd); + return true; } struct rq_qos_wait_data { |