xref: /titanic_52/usr/src/man/man9f/biofini.9f (revision 9b241b4ed1cf882400b069ff9853cdd310d469bf)
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BIOFINI 9F "Nov 20, 1996"
NAME
biofini - uninitialize a buffer structure
SYNOPSIS

#include <sys/ddi.h>
#include <sys/sunddi.h>

void biofini(struct buf *bp);
INTERFACE LEVEL

Solaris DDI specific (Solaris 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