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blkio: Export some symbols from blkio as its user CFQ can be a module

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o blkio controller is inside the kernel and cfq makes use of interfaces
  exported by blkio. CFQ can be a module too, hence export symbols used
  by CFQ.

Signed-off-by: Vivek Goyal <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Vivek Goyal 2009-12-04 10:36:41 -05:00 • committed by Jens Axboe
commit 9d6a986c0b
3 changed files with 27 additions and 2 deletions
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3
block/blk-cgroup.h
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@ -43,6 +43,9 @@ struct blkio_group {
unsigned long sectors;
};
extern bool blkiocg_css_tryget(struct blkio_cgroup *blkcg);
extern void blkiocg_css_put(struct blkio_cgroup *blkcg);
#else
struct blkio_group {