VOP_STRATEGY(9) read or write a file system buffer

SYNOPSIS

In sys/param.h In sys/vnode.h Ft int Fn VOP_STRATEGY struct vnode *vp struct buf *bp

DESCRIPTION

The arguments are:

Fa vp
The vnode that the buffer is for.
Fa bp
The buffer to be read or written.

This call either reads or writes data from a file, depending on the value of Fa 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.

AUTHORS

This manual page was written by An Doug Rabson .