Function report | 
Source Code:include\linux\blkdev.h | 
Create Date:2022-07-28 05:46:27 | 
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick | 
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| Annotation kernel can get tool activity | Download SCCT | Chinese | 
Name:rq_mergeable
Proto:static inline bool rq_mergeable(struct request *rq)
Type:bool
Parameter:
| Type | Parameter | Name | 
|---|---|---|
| struct request * | rq | 
| 741 | If blk_rq_is_passthrough(rq) Then Return false | 
| 744 | If req_op(rq) == REQ_OP_FLUSH Then Return false | 
| 747 | If req_op(rq) == REQ_OP_WRITE_ZEROES Then Return false | 
| 750 | If op and common flags & REQ_NOMERGE_FLAGS Then Return false | 
| 752 | If rq_flags & lags that prevent us from merging requests: Then Return false | 
| 755 | Return true | 
| Name | Describe | 
|---|---|
| elv_rqhash_find | |
| attempt_merge | For non-mq, this has to be called with the request spinlock acquired.* For mq with scheduling, the appropriate queue wide lock should be held. | 
| blk_rq_merge_ok | |
| blk_mq_sched_try_insert_merge | |
| dd_insert_request | add rq to rbtree and fifo | 
| bfq_insert_request | 
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