bio_alloc_pages(9) allocates a single page for each bvec in a bio

SYNOPSIS

int bio_alloc_pages(struct bio * bio, gfp_t gfp_mask);

ARGUMENTS

bio

bio to allocate pages for

gfp_mask

flags for allocation

DESCRIPTION

Allocates pages up to bio->bi_vcnt.

Returns 0 on success, -ENOMEM on failure. On failure, any allocated pages are freed.

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