diff options
Diffstat (limited to 'block/blk-iocost.c')
| -rw-r--r-- | block/blk-iocost.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c index c0499c294da9..ffcb78126ab7 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1984,7 +1984,8 @@ static void transfer_surpluses(struct list_head *surpluses, struct ioc_now *now) * up blocked paying its debt while the IO device is idle. * * The following protects against such cases. If the device has been - * sufficiently idle for a while, the debts are halved. + * sufficiently idle for a while, the debts are halved and delays are + * recalculated. */ static void ioc_forgive_debts(struct ioc *ioc, u64 usage_us_sum, int nr_debtors, struct ioc_now *now) @@ -2002,6 +2003,7 @@ static void ioc_forgive_debts(struct ioc *ioc, u64 usage_us_sum, int nr_debtors, if (iocg->abs_vdebt) { spin_lock(&iocg->waitq.lock); iocg->abs_vdebt /= 2; + iocg->delay = 0; /* kick_waitq will recalc */ iocg_kick_waitq(iocg, true, now); spin_unlock(&iocg->waitq.lock); } |