diff options
| author | Jens Axboe <jens.axboe@oracle.com> | 2010-04-13 20:03:21 +0200 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2010-04-13 20:03:21 +0200 |
| commit | 4facdaec1ce186e731e6baa04f074804849e9a49 (patch) | |
| tree | e521fba8386bf23533cfe21ea5200e615960ec07 /block/cfq-iosched.c | |
| parent | a11cdaa7af56423a921a8bdad8f5a5f4ddca918a (diff) | |
| parent | 0d0fb0f9c5fddef4a10242fe3337f00f528a3099 (diff) | |
Merge branch 'master' into for-2.6.35
Conflicts:
block/blk-cgroup.c
block/cfq-iosched.c
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'block/cfq-iosched.c')
| -rw-r--r-- | block/cfq-iosched.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 42be3b68d356..9e0df2bdcf21 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -7,6 +7,7 @@ * Copyright (C) 2003 Jens Axboe <axboe@kernel.dk> */ #include <linux/module.h> +#include <linux/slab.h> #include <linux/blkdev.h> #include <linux/elevator.h> #include <linux/jiffies.h> @@ -945,6 +946,11 @@ cfq_find_alloc_cfqg(struct cfq_data *cfqd, struct cgroup *cgroup, int create) unsigned int major, minor; cfqg = cfqg_of_blkg(blkiocg_lookup_group(blkcg, key)); + if (cfqg && !cfqg->blkg.dev && bdi->dev && dev_name(bdi->dev)) { + sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor); + cfqg->blkg.dev = MKDEV(major, minor); + goto done; + } if (cfqg || !create) goto done; @@ -2224,10 +2230,13 @@ static int cfq_forced_dispatch(struct cfq_data *cfqd) struct cfq_queue *cfqq; int dispatched = 0; - while ((cfqq = cfq_get_next_queue_forced(cfqd)) != NULL) + /* Expire the timeslice of the current active queue first */ + cfq_slice_expired(cfqd, 0); + while ((cfqq = cfq_get_next_queue_forced(cfqd)) != NULL) { + __cfq_set_active_queue(cfqd, cfqq); dispatched += __cfq_forced_dispatch_cfqq(cfqq); + } - cfq_slice_expired(cfqd, 0, true); BUG_ON(cfqd->busy_queues); cfq_log(cfqd, "forced_dispatch=%d", dispatched); |