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 |
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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 |
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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 |
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