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blkio: Introduce blkio controller cgroup interface

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o This is basic implementation of blkio controller cgroup interface. This is
  the common interface visible to user space and should be used by different
  IO control policies as we implement those.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This commit is contained in:
Vivek Goyal
2009-12-03 12:59:42 -05:00
committed by Jens Axboe
parent 1fa8f6d68b
commit 31e4c28d95
7 changed files with 260 additions and 0 deletions
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4
include/linux/iocontext.h
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@ -68,6 +68,10 @@ struct io_context {
unsigned short ioprio;
unsigned short ioprio_changed;
#ifdef CONFIG_BLK_CGROUP
unsigned short cgroup_changed;
#endif
/*
* For request batching
*/