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| author | Tejun Heo <tj@kernel.org> | 2015-08-18 14:55:13 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2015-08-18 15:49:17 -0700 |
| commit | b2ce2643cc705aa9043642d7b6248ccfd8e20629 (patch) | |
| tree | 5a759c516fc27535b5f429b1cd369fd39764880e /block/blk-cgroup.c | |
| parent | 4fb72036fbf9c28de7a64b1d3f19b4ce9da1c6bf (diff) | |
| download | linux-0-day-b2ce2643cc705aa9043642d7b6248ccfd8e20629.tar.gz linux-0-day-b2ce2643cc705aa9043642d7b6248ccfd8e20629.tar.xz | |
blk-throttle: clean up blkg_policy_data alloc/init/exit/free methods
With the recent addition of alloc and free methods, things became
messier. This patch reorganizes them according to the followings.
* ->pd_alloc_fn()
Responsible for allocation and static initializations - the ones
which can be done independent of where the pd might be attached.
* ->pd_init_fn()
Initializations which require the knowledge of where the pd is
attached.
* ->pd_free_fn()
The counter part of pd_alloc_fn(). Static de-init and freeing.
This leaves ->pd_exit_fn() without any users. Removed.
While at it, collapse an one liner function throtl_pd_exit(), which
has only one user, into its user.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-cgroup.c')
| -rw-r--r-- | block/blk-cgroup.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index d1bc6099bd1e8..acfb09af58a5c 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -402,15 +402,6 @@ static void blkg_destroy_all(struct request_queue *q) void __blkg_release_rcu(struct rcu_head *rcu_head) { struct blkcg_gq *blkg = container_of(rcu_head, struct blkcg_gq, rcu_head); - int i; - - /* tell policies that this one is being freed */ - for (i = 0; i < BLKCG_MAX_POLS; i++) { - struct blkcg_policy *pol = blkcg_policy[i]; - - if (blkg->pd[i] && pol->pd_exit_fn) - pol->pd_exit_fn(blkg); - } /* release the blkcg and parent blkg refs this blkg has been holding */ css_put(&blkg->blkcg->css); @@ -1127,8 +1118,6 @@ void blkcg_deactivate_policy(struct request_queue *q, if (pol->pd_offline_fn) pol->pd_offline_fn(blkg); - if (pol->pd_exit_fn) - pol->pd_exit_fn(blkg); if (blkg->pd[pol->plid]) { pol->pd_free_fn(blkg->pd[pol->plid]); |