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elevator: add new field flags in struct elevator_queue

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There are only one flag to indicate that elevator is registered currently,
prepare to add a flag to disable wbt if default elevator is bfq.

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221019121518.3865235-6-yukuai1@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Yu Kuai
2022-10-19 20:15:17 +08:00
committed by Jens Axboe
parent 3642ef4d95
commit 181d066374
2 changed files with 5 additions and 5 deletions
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4
block/elevator.h
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@@ -100,10 +100,12 @@ struct elevator_queue
void *elevator_data;
struct kobject kobj;
struct mutex sysfs_lock;
unsigned int registered:1;
unsigned long flags;
DECLARE_HASHTABLE(hash, ELV_HASH_BITS);
};
#define ELEVATOR_FLAG_REGISTERED 0
/*
* block elevator interface
*/