SIMPLE SOLUTIONS

VOP_STRATEGY(9FREEBSD) - man page online | system kernel interfaces

Read or write a file system buffer.

Chapter
July 24, 1996
VOP_STRATEGY(9)                   BSD Kernel Developer's Manual                   VOP_STRATEGY(9)

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

vnode(9)

AUTHORS

This manual page was written by Doug Rabson.
BSD July 24, 1996 BSD
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VOP_STRATEGY(9freebsd) referred by vnode(9freebsd)
refer to vnode(9freebsd)