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-rw-r--r--block/blk-iocost.c11
1 files changed, 7 insertions, 4 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 328ae805e85f..b82649c1440b 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -2048,7 +2048,7 @@ static void ioc_forgive_debts(struct ioc *ioc, u64 usage_us_sum, int nr_debtors,
list_for_each_entry(iocg, &ioc->active_iocgs, active_list) {
u64 __maybe_unused old_debt, __maybe_unused old_delay;
- if (!iocg->abs_vdebt)
+ if (!iocg->abs_vdebt && !iocg->delay)
continue;
spin_lock(&iocg->waitq.lock);
@@ -2056,8 +2056,11 @@ static void ioc_forgive_debts(struct ioc *ioc, u64 usage_us_sum, int nr_debtors,
old_debt = iocg->abs_vdebt;
old_delay = iocg->delay;
- iocg->abs_vdebt >>= nr_cycles;
- iocg->delay = 0; /* kick_waitq will recalc */
+ if (iocg->abs_vdebt)
+ iocg->abs_vdebt = iocg->abs_vdebt >> nr_cycles ?: 1;
+ if (iocg->delay)
+ iocg->delay = iocg->delay >> nr_cycles ?: 1;
+
iocg_kick_waitq(iocg, true, now);
TRACE_IOCG_PATH(iocg_forgive_debt, iocg, now, usage_pct,
@@ -2129,7 +2132,7 @@ static void ioc_timer_fn(struct timer_list *timer)
iocg->delay) {
/* might be oversleeping vtime / hweight changes, kick */
iocg_kick_waitq(iocg, true, &now);
- if (iocg->abs_vdebt)
+ if (iocg->abs_vdebt || iocg->delay)
nr_debtors++;
} else if (iocg_is_idle(iocg)) {
/* no waiter and idle, deactivate */