void
fuse_vnode_refreshsize(struct vnode *vp, struct ucred *cred)
{
struct fuse_vnode_data *fvdat = VTOFUD(vp);
struct vattr va;
if ((fvdat->flag & FN_SIZECHANGE) != 0 ||
(fuse_refresh_size == 0 && fvdat->filesize != 0) ||
fuse_isvalid_attr(vp))
return;
VOP_GETATTR(vp, &va, cred);
FS_DEBUG("refreshed file size: %jd\n", (intmax_t)VTOFUD(vp)->filesize);
}
/*
struct vnop_getattr_args {
struct vnode *a_vp;
struct vattr *a_vap;
struct ucred *a_cred;
struct thread *a_td;
};
*/
static int
fuse_vnop_getattr(struct vop_getattr_args *ap)
{
struct vnode *vp = ap->a_vp;
struct vattr *vap = ap->a_vap;
struct ucred *cred = ap->a_cred;
struct thread *td = curthread;
struct fuse_vnode_data *fvdat = VTOFUD(vp);
int err = 0;
int dataflags;
struct fuse_dispatcher fdi;
FS_DEBUG2G("inode=%ju\n", (uintmax_t)VTOI(vp));
dataflags = fuse_get_mpdata(vnode_mount(vp))->dataflags;
/* Note that we are not bailing out on a dead file system just yet. */
/* look for cached attributes */
if (fuse_isvalid_attr(vp)) {
if (vap != VTOVA(vp)) {
memcpy(vap, VTOVA(vp), sizeof(*vap));
}
if ((fvdat->flag & FN_SIZECHANGE) != 0) {
vap->va_size = fvdat->filesize;
}
debug_printf("return cached: inode=%ju\n", (uintmax_t)VTOI(vp));
return 0;
}
if (!(dataflags & FSESS_INITED)) {
if (!vnode_isvroot(vp)) {
fdata_set_dead(fuse_get_mpdata(vnode_mount(vp)));
err = ENOTCONN;
debug_printf("fuse_getattr b: returning ENOTCONN\n");
return err;
} else {
goto fake;
}
}
fdisp_init(&fdi, 0);
if ((err = fdisp_simple_putget_vp(&fdi, FUSE_GETATTR, vp, td, cred))) {
if ((err == ENOTCONN) && vnode_isvroot(vp)) {
/* see comment at similar place in fuse_statfs() */
fdisp_destroy(&fdi);
goto fake;
}
if (err == ENOENT) {
fuse_internal_vnode_disappear(vp);
}
goto out;
}
cache_attrs(vp, (struct fuse_attr_out *)fdi.answ);
if (vap != VTOVA(vp)) {
memcpy(vap, VTOVA(vp), sizeof(*vap));
}
if ((fvdat->flag & FN_SIZECHANGE) != 0)
vap->va_size = fvdat->filesize;
if (vnode_isreg(vp) && (fvdat->flag & FN_SIZECHANGE) == 0) {
/*
* This is for those cases when the file size changed without us
* knowing, and we want to catch up.
*/
off_t new_filesize = ((struct fuse_attr_out *)
fdi.answ)->attr.size;
if (fvdat->filesize != new_filesize) {
fuse_vnode_setsize(vp, cred, new_filesize);
}
}
KASSERT(vnode_vtype(vp) == vap->va_type, ("stale vnode"));
debug_printf("fuse_getattr e: returning 0\n");
out:
fdisp_destroy(&fdi);
return err;
fake:
bzero(vap, sizeof(*vap));
vap->va_type = vnode_vtype(vp);
return 0;
}
