BIOFINI(9F) Kernel Functions for Drivers BIOFINI(9F)
NAME
biofini - uninitialize a buffer structure
SYNOPSIS
#include <sys/ddi.h>
#include <sys/sunddi.h>
void biofini(
struct buf *bp);
INTERFACE LEVEL
illumos DDI specific (illumos DDI).
PARAMETERS
bp Pointer to the buffer header structure.
DESCRIPTION
The
biofini() function uninitializes a
buf(9S) structure. If a buffer
structure has been allocated and initialized using
kmem_alloc(9F) and
bioinit(9F) it needs to be uninitialized using
biofini() before
calling
kmem_free(9F). It is not necessary to call
biofini() before
freeing a buffer structure using
freerbuf(9F) because
freerbuf() will
call
biofini() directly.
CONTEXT
The
biofini() function can be called from any context.
EXAMPLES
Example 1: Using biofini()
struct buf *bp = kmem_alloc(biosize(), KM_SLEEP);
bioinit(bp);
/* use buffer */
biofini(bp);
kmem_free(bp, biosize());
SEE ALSO
bioinit(9F),
bioreset(9F),
biosize(9F),
freerbuf(9F),
kmem_alloc(9F),
kmem_free(9F),
buf(9S) Writing Device Drivers November 20, 1996 BIOFINI(9F)
