/*
* Return all the pages from [off..off+len] in given file
*/
static int
xmem_getpage(struct vnode *vp, offset_t off, size_t len, uint_t *protp,
page_t *pl[], size_t plsz, struct seg *seg, caddr_t addr,
enum seg_rw rw, struct cred *cr)
{
int err = 0;
struct xmemnode *xp = VTOXN(vp);
struct xmount *xm = (struct xmount *)VTOXM(vp);
timestruc_t now;
cmn_err(CE_PANIC, "xmem_getpage");
rw_enter(&xp->xn_contents, RW_READER);
if (off + len > xp->xn_size + xm->xm_bsize) {
rw_exit(&xp->xn_contents);
return (EFAULT);
}
rw_exit(&xp->xn_contents);
if (len <= xm->xm_bsize)
err = xmem_getapage(vp, (u_offset_t)off, len, protp, pl, plsz,
seg, addr, rw, cr);
else
err = pvn_getpages(xmem_getapage, vp, (u_offset_t)off, len,
protp, pl, plsz, seg, addr, rw, cr);
rw_enter(&xp->xn_contents, RW_WRITER);
gethrestime(&now);
xp->xn_atime = now;
if (rw == S_WRITE)
xp->xn_mtime = now;
rw_exit(&xp->xn_contents);
return (err);
}
/*ARGSUSED*/
static int
bootfs_getpage(vnode_t *vp, offset_t off, size_t len, uint_t *protp,
page_t *pl[], size_t plsz, struct seg *seg, caddr_t addr, enum seg_rw rw,
cred_t *cr, caller_context_t *ct)
{
int err;
bootfs_node_t *bnp = vp->v_data;
if (off + len > bnp->bvn_size + PAGEOFFSET)
return (EFAULT);
if (len <= PAGESIZE)
err = bootfs_getapage(vp, (u_offset_t)off, len, protp, pl,
plsz, seg, addr, rw, cr);
else
err = pvn_getpages(bootfs_getapage, vp, (u_offset_t)off, len,
protp, pl, plsz, seg, addr, rw, cr);
return (err);
}
