Name

bio_alloc_bioset — allocate a bio for I/O

Synopsis

struct bio * bio_alloc_bioset (gfp_t  gfp_mask,
 int  nr_iovecs,
 struct bio_set *  bs);

Arguments

gfp_mask

the GFP_ mask given to the slab allocator

nr_iovecs

number of iovecs to pre-allocate

bs

the bio_set to allocate from

Description

bio_alloc_bioset will first try it's on mempool to satisfy the allocation. If __GFP_WAIT is set then we will block on the internal pool waiting for a struct bio to become free.

allocate bio and iovecs from the memory pools specified by the bio_set structure.