VOP_STRATEGY9
Read or write a file system buffer
Usage
#include <sys/param.h>
#include <sys/vnode.h>
int
VOP_STRATEGY(struct vnode *vp, struct buf *bp);
Overview
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
Zero is returned on success, otherwise an error is returned.