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blk-wbt: abstract out end IO completion handler 

Prep patch for calling the handler from a different context,
no functional changes in this patch.

Tested-by: Agarwal, Anchal <anchalag@amazon.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
hifive-unleashed-5.1
Jens Axboe 2018-08-26 10:09:06 -06:00
parent b8dcdab36f
commit 061a542753
1 changed files with 14 additions and 7 deletions
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21
block/blk-wbt.c
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@ -123,16 +123,11 @@ static void rwb_wake_all(struct rq_wb *rwb)
}
}
static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct)
static void wbt_rqw_done(struct rq_wb *rwb, struct rq_wait *rqw,
enum wbt_flags wb_acct)
{
struct rq_wb *rwb = RQWB(rqos);
struct rq_wait *rqw;
int inflight, limit;
if (!(wb_acct & WBT_TRACKED))
return;
rqw = get_rq_wait(rwb, wb_acct);
inflight = atomic_dec_return(&rqw->inflight);
/*
@ -170,6 +165,18 @@ static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct)
}
}
static void __wbt_done(struct rq_qos *rqos, enum wbt_flags wb_acct)
{
struct rq_wb *rwb = RQWB(rqos);
struct rq_wait *rqw;
if (!(wb_acct & WBT_TRACKED))
return;
rqw = get_rq_wait(rwb, wb_acct);
wbt_rqw_done(rwb, rqw, wb_acct);
}
/*
* Called on completion of a request. Note that it's also called when
* a request is merged, when the request gets freed.