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blk-wbt: Use tracepoint_string() for wbt_step tracepoint string literals

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Use tracepoint_string() for string literals that are used in the
wbt_step tracepoint, so that userspace tools can display the string
content.

Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Tommi Rantala 2020-04-17 16:00:22 +03:00 • committed by Jens Axboe
parent 3dceecfad6
commit 3a89c25d98
1 changed files with 2 additions and 2 deletions
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4
block/blk-wbt.c
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@ -313,7 +313,7 @@ static void scale_up(struct rq_wb *rwb)
calc_wb_limits(rwb); calc_wb_limits(rwb);
rwb->unknown_cnt = 0; rwb->unknown_cnt = 0;
rwb_wake_all(rwb); rwb_wake_all(rwb);
rwb_trace_step(rwb, "scale up"); rwb_trace_step(rwb, tracepoint_string("scale up"));
} }
static void scale_down(struct rq_wb *rwb, bool hard_throttle) static void scale_down(struct rq_wb *rwb, bool hard_throttle)
@ -322,7 +322,7 @@ static void scale_down(struct rq_wb *rwb, bool hard_throttle)
return; return;
calc_wb_limits(rwb); calc_wb_limits(rwb);
rwb->unknown_cnt = 0; rwb->unknown_cnt = 0;
rwb_trace_step(rwb, "scale down"); rwb_trace_step(rwb, tracepoint_string("scale down"));
} }
static void rwb_arm_timer(struct rq_wb *rwb) static void rwb_arm_timer(struct rq_wb *rwb)