int
tmpfs_setattr(struct vop_setattr_args *v)
{
struct vnode *vp = v->a_vp;
struct vattr *vap = v->a_vap;
struct ucred *cred = v->a_cred;
struct tmpfs_node *node = VP_TO_TMPFS_NODE(vp);
int error = 0;
int kflags = 0;
TMPFS_NODE_LOCK(node);
if (error == 0 && (vap->va_flags != VNOVAL)) {
error = tmpfs_chflags(vp, vap->va_flags, cred);
kflags |= NOTE_ATTRIB;
}
if (error == 0 && (vap->va_size != VNOVAL)) {
if (vap->va_size > node->tn_size)
kflags |= NOTE_WRITE | NOTE_EXTEND;
else
kflags |= NOTE_WRITE;
error = tmpfs_chsize(vp, vap->va_size, cred);
}
if (error == 0 && (vap->va_uid != (uid_t)VNOVAL ||
vap->va_gid != (gid_t)VNOVAL)) {
error = tmpfs_chown(vp, vap->va_uid, vap->va_gid, cred);
kflags |= NOTE_ATTRIB;
}
if (error == 0 && (vap->va_mode != (mode_t)VNOVAL)) {
error = tmpfs_chmod(vp, vap->va_mode, cred);
kflags |= NOTE_ATTRIB;
}
if (error == 0 && ((vap->va_atime.tv_sec != VNOVAL &&
vap->va_atime.tv_nsec != VNOVAL) ||
(vap->va_mtime.tv_sec != VNOVAL &&
vap->va_mtime.tv_nsec != VNOVAL) )) {
error = tmpfs_chtimes(vp, &vap->va_atime, &vap->va_mtime,
vap->va_vaflags, cred);
kflags |= NOTE_ATTRIB;
}
/*
* Update the node times. We give preference to the error codes
* generated by this function rather than the ones that may arise
* from tmpfs_update.
*/
tmpfs_update(vp);
TMPFS_NODE_UNLOCK(node);
tmpfs_knote(vp, kflags);
return (error);
}
/* XXX Should this operation be atomic? I think it should, but code in
* XXX other places (e.g., ufs) doesn't seem to be... */
int
tmpfs_setattr(struct vop_setattr_args *v)
{
struct vnode *vp = v->a_vp;
struct vattr *vap = v->a_vap;
struct ucred *cred = v->a_cred;
struct thread *td = curthread;
int error;
MPASS(VOP_ISLOCKED(vp));
error = 0;
/* Abort if any unsettable attribute is given. */
if (vap->va_type != VNON ||
vap->va_nlink != VNOVAL ||
vap->va_fsid != VNOVAL ||
vap->va_fileid != VNOVAL ||
vap->va_blocksize != VNOVAL ||
vap->va_gen != VNOVAL ||
vap->va_rdev != VNOVAL ||
vap->va_bytes != VNOVAL)
error = EINVAL;
if (error == 0 && (vap->va_flags != VNOVAL))
error = tmpfs_chflags(vp, vap->va_flags, cred, td);
if (error == 0 && (vap->va_size != VNOVAL))
error = tmpfs_chsize(vp, vap->va_size, cred, td);
if (error == 0 && (vap->va_uid != VNOVAL || vap->va_gid != VNOVAL))
error = tmpfs_chown(vp, vap->va_uid, vap->va_gid, cred, td);
if (error == 0 && (vap->va_mode != (mode_t)VNOVAL))
error = tmpfs_chmod(vp, vap->va_mode, cred, td);
if (error == 0 && ((vap->va_atime.tv_sec != VNOVAL &&
vap->va_atime.tv_nsec != VNOVAL) ||
(vap->va_mtime.tv_sec != VNOVAL &&
vap->va_mtime.tv_nsec != VNOVAL) ||
(vap->va_birthtime.tv_sec != VNOVAL &&
vap->va_birthtime.tv_nsec != VNOVAL)))
error = tmpfs_chtimes(vp, &vap->va_atime, &vap->va_mtime,
&vap->va_birthtime, vap->va_vaflags, cred, td);
/* Update the node times. We give preference to the error codes
* generated by this function rather than the ones that may arise
* from tmpfs_update. */
tmpfs_update(vp);
MPASS(VOP_ISLOCKED(vp));
return error;
}
