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Command: VOP_STRATEGY | Section: 9 | Source: FreeBSD | File: VOP_STRATEGY.9.gz
VOP_STRATEGY(9) FreeBSD Kernel Developer's Manual VOP_STRATEGY(9)
NAME
VOP_STRATEGY - read or write a file system buffer
SYNOPSIS
#include <sys/param.h>
#include <sys/buf.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_iocmd.
The call may block.
RETURN VALUES
Always zero. Errors should be signalled by setting the BIO_ERROR bit in
bp->b_ioflags and setting bp->b_error to the appropriate errno value.
SEE ALSO
errno(2), buf(9), vnode(9)
AUTHORS
This manual page was written by Doug Rabson.
FreeBSD 14.1-RELEASE-p8 June 30, 2022 FreeBSD 14.1-RELEASE-p8