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author | Ingo Molnar <mingo@elte.hu> | 2010-05-10 13:12:26 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-05-10 13:12:29 +0200 |
commit | 7c224a03a79021ab12ce057964df9e679af5386d (patch) | |
tree | 809dbf3bcb5978e7b1845eb4c46179f1c9405f0c /block | |
parent | 5bdb7934ca4115a12c7d585c5a45312b1c36909b (diff) | |
parent | b57f95a38233a2e73b679bea4a5453a1cc2a1cc9 (diff) | |
download | linux-7c224a03a79021ab12ce057964df9e679af5386d.tar.gz linux-7c224a03a79021ab12ce057964df9e679af5386d.tar.bz2 linux-7c224a03a79021ab12ce057964df9e679af5386d.zip |
Merge commit 'v2.6.34-rc7' into oprofile
Merge reason: Update to Linus's latest -rc.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'block')
-rw-r--r-- | block/blk-cgroup.c | 8 | ||||
-rw-r--r-- | block/blk-timeout.c | 12 | ||||
-rw-r--r-- | block/cfq-iosched.c | 2 |
3 files changed, 11 insertions, 11 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 5fe03def34b2..2cc682b860ea 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -286,16 +286,16 @@ done: static struct cgroup_subsys_state * blkiocg_create(struct cgroup_subsys *subsys, struct cgroup *cgroup) { - struct blkio_cgroup *blkcg, *parent_blkcg; + struct blkio_cgroup *blkcg; + struct cgroup *parent = cgroup->parent; - if (!cgroup->parent) { + if (!parent) { blkcg = &blkio_root_cgroup; goto done; } /* Currently we do not support hierarchy deeper than two level (0,1) */ - parent_blkcg = cgroup_to_blkio_cgroup(cgroup->parent); - if (css_depth(&parent_blkcg->css) > 0) + if (parent != cgroup->top_cgroup) return ERR_PTR(-EINVAL); blkcg = kzalloc(sizeof(*blkcg), GFP_KERNEL); diff --git a/block/blk-timeout.c b/block/blk-timeout.c index 1ba7e0aca878..4f0c06c7a338 100644 --- a/block/blk-timeout.c +++ b/block/blk-timeout.c @@ -109,6 +109,7 @@ void blk_rq_timed_out_timer(unsigned long data) struct request_queue *q = (struct request_queue *) data; unsigned long flags, next = 0; struct request *rq, *tmp; + int next_set = 0; spin_lock_irqsave(q->queue_lock, flags); @@ -122,16 +123,13 @@ void blk_rq_timed_out_timer(unsigned long data) if (blk_mark_rq_complete(rq)) continue; blk_rq_timed_out(rq); - } else if (!next || time_after(next, rq->deadline)) + } else if (!next_set || time_after(next, rq->deadline)) { next = rq->deadline; + next_set = 1; + } } - /* - * next can never be 0 here with the list non-empty, since we always - * bump ->deadline to 1 so we can detect if the timer was ever added - * or not. See comment in blk_add_timer() - */ - if (next) + if (next_set) mod_timer(&q->timeout, round_jiffies_up(next)); spin_unlock_irqrestore(q->queue_lock, flags); diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 838834be115b..5f127cfb2e92 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -3694,8 +3694,10 @@ static void *cfq_init_queue(struct request_queue *q) * to make sure that cfq_put_cfqg() does not try to kfree root group */ atomic_set(&cfqg->ref, 1); + rcu_read_lock(); blkiocg_add_blkio_group(&blkio_root_cgroup, &cfqg->blkg, (void *)cfqd, 0); + rcu_read_unlock(); #endif /* * Not strictly needed (since RB_ROOT just clears the node and we |