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blkcg: kill unused field nr_undestroyed_grps

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'nr_undestroyed_grps' in struct throtl_data was used to count
the number of throtl_grp related with throtl_data, but now
throtl_grp is tracked by blkcg_gq, so it is useless anymore.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Hou Tao 2016-07-26 17:13:42 +08:00 committed by Jens Axboe
parent dc5ff2b1d6
commit bfd279a868
1 changed files with 0 additions and 5 deletions
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5
block/blk-throttle.c
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@ -145,11 +145,6 @@ struct throtl_data
/* Total Number of queued bios on READ and WRITE lists */
unsigned int nr_queued[2];
/*
* number of total undestroyed groups
*/
unsigned int nr_undestroyed_grps;
/* Work for dispatching throttled bios */
struct work_struct dispatch_work;
};