BIORESET(9F) Kernel Functions for Drivers BIORESET(9F)

NAME

bioreset - reuse a private buffer header after I/O is complete

SYNOPSIS

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


void bioreset(struct buf *bp);

INTERFACE LEVEL

illumos DDI specific (illumos DDI)

PARAMETERS

bp
Pointer to the buf(9S) structure.

DESCRIPTION

bioreset() is used by drivers that allocate private buffers with
getrbuf(9F) or kmem_alloc(9F) and want to reuse them in multiple
transfers before freeing them with freerbuf(9F) or kmem_free(9F).
bioreset() resets the buffer header to the state it had when
initially allocated by getrbuf() or initialized by bioinit(9F).

CONTEXT

bioreset() can be called from any context.

SEE ALSO

strategy(9E), biofini(9F), bioinit(9F), freerbuf(9F), getrbuf(9F),
kmem_alloc(9F), kmem_free(9F), buf(9S)

NOTES

bp must not describe a transfer in progress.

November 15, 1996 BIORESET(9F)