Copyright (c) 1996 Doug Rabson
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$Id: VOP_REMOVE.9,v 1.1 1997/03/03 18:00:36 dfr Exp $
.Dd July 24, 1996 .Os .Dt VOP_REMOVE 9 .Sh NAME .Nm VOP_REMOVE , .Nm VOP_RMDIR .Nd remove a file or directory .Sh SYNOPSIS .Fd #include <sys/vnode.h> .Ft int .Fn VOP_REMOVE "struct vnode *dvp" "struct vnode *vp" "struct componentname *cnp" .Ft int .Fn VOP_RMDIR "struct vnode *dvp" "struct vnode *vp" "struct componentname *cnp" .Sh DESCRIPTION These entry points remove files and directories respectively.
p The arguments are: l -tag -width dvp t Ar dvp the vnode of the directory t Ar vp the vnode of the file to be removed t Ar cnp pathname information about the file .El .Sh LOCKS Both .Fa dvp and .Fa vp should be locked on entry and are unlocked and released on exit. .Sh RETURN VALUES Zero is returned on success, otherwise an error code is returned. .Sh PSEUDOCODE d -literal int vop_remove(struct vnode *dvp, struct vnode *vp, struct componentname *cnp) { int error = 0; if (vp is immutable) { error = EPERM; goto out; } /* * Remove name cnp->cn_nameptr from directory and update link count * of vp. */ ...; /* * Careful about trying to remove ".". XXX this should be handled * higher up. */ if (dvp == vp) vrele(vp); else vput(vp); vput(dvp); return error; } .Ed .Sh ERRORS l -tag -width [ENOTEMPTY] t Bq Er EPERM the file is immutable t Bq Er ENOTEMPTY attempt to remove a directory which is not empty .El .Sh SEE ALSO .Xr vnode 9 , .Xr VOP_LOOKUP 9 .Sh AUTHORS This man page was written by Doug Rabson.