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authorTejun Heo <tj@kernel.org>2012-03-05 13:15:03 -0800
committerJens Axboe <axboe@kernel.dk>2012-03-06 21:27:22 +0100
commitca32aefc7f2539ed88d42763330d54ee3e61769a (patch)
tree791d2ac1c11b738ce34629653090b6e971fc11b5 /block/cfq.h
parent0a5a7d0e32be6643b881f0e7cd9d0d06fadde27a (diff)
blkcg: use q and plid instead of opaque void * for blkio_group association
blkgio_group is association between a block cgroup and a queue for a given policy. Using opaque void * for association makes things confusing and hinders factoring of common code. Use request_queue * and, if necessary, policy id instead. This will help block cgroup API cleanup. Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/cfq.h')
-rw-r--r--block/cfq.h7
1 files changed, 4 insertions, 3 deletions
diff --git a/block/cfq.h b/block/cfq.h
index 2a155927e37c..343b78a61df3 100644
--- a/block/cfq.h
+++ b/block/cfq.h
@@ -68,8 +68,9 @@ static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg,
}
static inline void cfq_blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
- struct blkio_group *blkg, void *key, dev_t dev) {
- blkiocg_add_blkio_group(blkcg, blkg, key, dev, BLKIO_POLICY_PROP);
+ struct blkio_group *blkg, struct request_queue *q, dev_t dev)
+{
+ blkiocg_add_blkio_group(blkcg, blkg, q, dev, BLKIO_POLICY_PROP);
}
static inline int cfq_blkiocg_del_blkio_group(struct blkio_group *blkg)
@@ -105,7 +106,7 @@ static inline void cfq_blkiocg_update_dispatch_stats(struct blkio_group *blkg,
static inline void cfq_blkiocg_update_completion_stats(struct blkio_group *blkg, uint64_t start_time, uint64_t io_start_time, bool direction, bool sync) {}
static inline void cfq_blkiocg_add_blkio_group(struct blkio_cgroup *blkcg,
- struct blkio_group *blkg, void *key, dev_t dev) {}
+ struct blkio_group *blkg, struct request_queue *q, dev_t dev) {}
static inline int cfq_blkiocg_del_blkio_group(struct blkio_group *blkg)
{
return 0;