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blk_rq_map_kern
Langue: en
Version: May 2009 (fedora - 06/07/09)
Section: 9 (Appels noyau Linux)
NAME
blk_rq_map_kern - map kernel data to a request, for REQ_TYPE_BLOCK_PC usageSYNOPSIS
- int blk_rq_map_kern(struct request_queue * q, struct request * rq, void * kbuf, unsigned int len, gfp_t gfp_mask);
ARGUMENTS
q
- request queue where request should be inserted
rq
- request to fill
kbuf
- the kernel buffer
len
- length of user data
gfp_mask
- memory allocation flags
DESCRIPTION
Data will be mapped directly if possible. Otherwise a bounce buffer is used.
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