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blkcg: misc preparations for unified hierarchy interface

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* Export blkg_dev_name()

* Drop unnecessary @cft from __cfq_set_weight().

Signed-off-by: Tejun Heo <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Tejun Heo 2015-08-18 14:55:33 -07:00 • committed by Jens Axboe
commit dd165eb3bb
3 changed files with 7 additions and 5 deletions
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3
block/blk-cgroup.c
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@ -462,13 +462,14 @@ static int blkcg_reset_stats(struct cgroup_subsys_state *css,
return 0;
}
static const char *blkg_dev_name(struct blkcg_gq *blkg)
const char *blkg_dev_name(struct blkcg_gq *blkg)
{
/* some drivers (floppy) instantiate a queue w/o disk registered */
if (blkg->q->backing_dev_info.dev)
return dev_name(blkg->q->backing_dev_info.dev);
return NULL;
}
EXPORT_SYMBOL_GPL(blkg_dev_name);
/**
* blkcg_print_blkgs - helper for printing per-blkg data