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| author | David S. Miller <davem@davemloft.net> | 2011-07-05 23:23:37 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-07-05 23:23:37 -0700 |
| commit | e12fe68ce34d60c04bb1ddb1d3cc5c3022388fe4 (patch) | |
| tree | 83c0e192ccaa4752c80b6131a7d0aa8272b5d0d0 /block/cfq-iosched.c | |
| parent | 7329f0d58de01878d9ce4f0be7a76e136f223eef (diff) | |
| parent | 712ae51afd55b20c04c5383d02ba5d10233313b1 (diff) | |
| download | talos-op-linux-e12fe68ce34d60c04bb1ddb1d3cc5c3022388fe4.tar.gz talos-op-linux-e12fe68ce34d60c04bb1ddb1d3cc5c3022388fe4.zip | |
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 3c7b537bf908..f3799432676d 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -988,9 +988,10 @@ static void cfq_group_served(struct cfq_data *cfqd, struct cfq_group *cfqg, cfq_log_cfqg(cfqd, cfqg, "served: vt=%llu min_vt=%llu", cfqg->vdisktime, st->min_vdisktime); - cfq_log_cfqq(cfqq->cfqd, cfqq, "sl_used=%u disp=%u charge=%u iops=%u" - " sect=%u", used_sl, cfqq->slice_dispatch, charge, - iops_mode(cfqd), cfqq->nr_sectors); + cfq_log_cfqq(cfqq->cfqd, cfqq, + "sl_used=%u disp=%u charge=%u iops=%u sect=%lu", + used_sl, cfqq->slice_dispatch, charge, + iops_mode(cfqd), cfqq->nr_sectors); cfq_blkiocg_update_timeslice_used(&cfqg->blkg, used_sl, unaccounted_sl); cfq_blkiocg_set_start_empty_time(&cfqg->blkg); @@ -2023,8 +2024,8 @@ static void cfq_arm_slice_timer(struct cfq_data *cfqd) */ if (sample_valid(cic->ttime_samples) && (cfqq->slice_end - jiffies < cic->ttime_mean)) { - cfq_log_cfqq(cfqd, cfqq, "Not idling. think_time:%d", - cic->ttime_mean); + cfq_log_cfqq(cfqd, cfqq, "Not idling. think_time:%lu", + cic->ttime_mean); return; } @@ -2772,8 +2773,11 @@ static void __cfq_exit_single_io_context(struct cfq_data *cfqd, smp_wmb(); cic->key = cfqd_dead_key(cfqd); - if (ioc->ioc_data == cic) + if (rcu_dereference(ioc->ioc_data) == cic) { + spin_lock(&ioc->lock); rcu_assign_pointer(ioc->ioc_data, NULL); + spin_unlock(&ioc->lock); + } if (cic->cfqq[BLK_RW_ASYNC]) { cfq_exit_cfqq(cfqd, cic->cfqq[BLK_RW_ASYNC]); |
