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blkcg: pass @q and @blkcg into blkcg_pol_alloc_pd_fn()

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Instead of @node, pass in @q and @blkcg so that the alloc function has
more context.  This doesn't cause any behavior change and will be used
by io.weight implementation.

Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tejun Heo 2019-08-28 15:05:51 -07:00 • committed by Jens Axboe
commit cf09a8ee19
5 changed files with 16 additions and 10 deletions
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6
block/blk-iolatency.c
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@ -934,11 +934,13 @@ static size_t iolatency_pd_stat(struct blkg_policy_data *pd, char *buf,
}
static struct blkg_policy_data *iolatency_pd_alloc(gfp_t gfp, int node)
static struct blkg_policy_data *iolatency_pd_alloc(gfp_t gfp,
struct request_queue *q,
struct blkcg *blkcg)
{
struct iolatency_grp *iolat;
iolat = kzalloc_node(sizeof(*iolat), gfp, node);
iolat = kzalloc_node(sizeof(*iolat), gfp, q->node);
if (!iolat)
return NULL;
iolat->stats = __alloc_percpu_gfp(sizeof(struct latency_stat),