diff options
Diffstat (limited to 'block/blk-iocost.c')
| -rw-r--r-- | block/blk-iocost.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 2a3db80c1dce..e01267f99183 100644 --- a/block/blk-iocost.c +++ b/block/blk-iocost.c @@ -1057,9 +1057,12 @@ static bool iocg_activate(struct ioc_gq *iocg, struct ioc_now *now) atomic64_set(&iocg->active_period, cur_period); /* already activated or breaking leaf-only constraint? */ - for (i = iocg->level; i > 0; i--) - if (!list_empty(&iocg->active_list)) + if (!list_empty(&iocg->active_list)) + goto succeed_unlock; + for (i = iocg->level - 1; i > 0; i--) + if (!list_empty(&iocg->ancestors[i]->active_list)) goto fail_unlock; + if (iocg->child_active_sum) goto fail_unlock; @@ -1101,6 +1104,7 @@ static bool iocg_activate(struct ioc_gq *iocg, struct ioc_now *now) ioc_start_period(ioc, now); } +succeed_unlock: spin_unlock_irq(&ioc->lock); return true; @@ -2110,10 +2114,10 @@ static ssize_t ioc_weight_write(struct kernfs_open_file *of, char *buf, goto einval; } - spin_lock_irq(&iocg->ioc->lock); + spin_lock(&iocg->ioc->lock); iocg->cfg_weight = v; weight_updated(iocg); - spin_unlock_irq(&iocg->ioc->lock); + spin_unlock(&iocg->ioc->lock); blkg_conf_finish(&ctx); return nbytes; |