xref: /illumos-gate/usr/src/man/man9f/bioreset.9f (revision f3041bfa)
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Copyright (c) 1996, Sun Microsystems, Inc., All Rights Reserved
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You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing. See the License for the specific language governing permissions and limitations under the License.
When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
BIORESET 9F "Nov 15, 1996"
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

Solaris DDI specific (Solaris 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), bioinit(9F), biofini(9F), freerbuf(9F), getrbuf(9F), kmem_alloc(9F), kmem_free(9F), buf(9S)

NOTES

bp must not describe a transfer in progress.