bio_alloc_bioset man page on Scientific

bio_alloc_bioset man page on Scientific

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BIO_ALLOC_BIOSET(9)		 The Linux VFS		   BIO_ALLOC_BIOSET(9)

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. If NULL, just use kmalloc

DESCRIPTION
       bio_alloc_bioset will first try its own 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. If a NULL bs is passed
       in, we will fall back to just using kmalloc to allocate the required
       memory.

       Note that the caller must set ->bi_destructor on succesful return of a
       bio, to do the appropriate freeing of the bio once the reference count
       drops to zero.

COPYRIGHT
Kernel Hackers Manual 2.6.	 November 2013		   BIO_ALLOC_BIOSET(9)

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