1BIO_ALLOC_BIOSET(9)              The Linux VFS             BIO_ALLOC_BIOSET(9)
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NAME

6       bio_alloc_bioset - allocate a bio for I/O
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SYNOPSIS

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

13       gfp_mask
14           the GFP_ mask given to the slab allocator
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16       nr_iovecs
17           number of iovecs to pre-allocate
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19       bs
20           the bio_set to allocate from. If NULL, just use kmalloc
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DESCRIPTION

23       bio_alloc_bioset will first try its own mempool to satisfy the
24       allocation. If __GFP_WAIT is set then we will block on the internal
25       pool waiting for a struct bio to become free. If a NULL bs is passed
26       in, we will fall back to just using kmalloc to allocate the required
27       memory.
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29       Note that the caller must set ->bi_destructor on succesful return of a
30       bio, to do the appropriate freeing of the bio once the reference count
31       drops to zero.
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34Kernel Hackers Manual 2.6.         June 2019               BIO_ALLOC_BIOSET(9)
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