Name
dma_buf_kmap_atomic —
Map a page of the buffer object into kernel address space. The same restrictions as for kmap_atomic and friends apply.
Synopsis
void * dma_buf_kmap_atomic ( | struct dma_buf * dmabuf, |
| | unsigned long page_num); |
Arguments
dmabuf
[in] buffer to map page from.
page_num
[in] page in PAGE_SIZE units to map.
Description
This call must always succeed, any necessary preparations that might fail
need to be done in begin_cpu_access.