Function report |
Source Code:include\linux\blkdev.h |
Create Date:2022-07-28 05:46:30 |
| Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
| home page | Tree |
| Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:Number of physical segments as sent to the device
Proto:static inline unsigned short blk_rq_nr_phys_segments(struct request *rq)
Type:unsigned short
Parameter:
| Type | Parameter | Name |
|---|---|---|
| struct request * | rq |
| 1124 | If rq_flags & Look at ->special_vec for the actual data payload instead of thebio chain. Then Return 1 |
| 1126 | Return * Number of scatter-gather DMA addr+len pairs after * physical address coalescing is performed. |
| Name | Describe |
|---|---|
| blk_rq_map_sg | map a request to scatterlist, return number of sg entries setup. Caller* must make sure sg can hold rq->nr_phys_segments entries |
| Source code conversion tool public plug-in interface | X |
|---|---|
| Support c/c++/esqlc/java Oracle/Informix/Mysql Plug-in can realize: logical Report Code generation and batch code conversion |