VOP_STRATEGY(9freebsd)

NAME

VOP_STRATEGY – read or write a file system buffer

SYNOPSIS

#include <sys/param.h>

#include <sys/vnode.h>

int

VOP_STRATEGY(struct vnode *vp, struct buf *bp);

DESCRIPTION

The arguments are:

vp

The vnode that the buffer is for.

bp

The buffer to be read or written.

This call either reads or writes data from a file, depending on the value of bp->b_io.bio_cmd.

The call may block.

RETURN VALUES

Always zero. Errors should be signalled by setting BIO_ERROR on b_ioflags field in struct buf, and setting b_error to the appropriate errno value.

SEE ALSO

buf(9), vnode(9)

AUTHORS

This manual page was written by Doug Rabson.