BIO_SPLIT(9)                              The Linux VFS                              BIO_SPLIT(9)



NAME
       bio_split - split a bio

SYNOPSIS
       struct bio * bio_split(struct bio * bio, int sectors, gfp_t gfp, struct bio_set * bs);

ARGUMENTS
       bio
           bio to split

       sectors
           number of sectors to split from the front of bio

       gfp
           gfp mask

       bs
           bio set to allocate from

DESCRIPTION
       Allocates and returns a new bio which represents sectors from the start of bio, and
       updates bio to represent the remaining sectors.

       Unless this is a discard request the newly allocated bio will point to bio's bi_io_vec; it
       is the caller's responsibility to ensure that bio is not freed before the split.

COPYRIGHT
Kernel Hackers Manual 4.8.                 January 2017                              BIO_SPLIT(9)