On Thu, Oct 20, 2005 at 08:48:54AM -0700, Jason Thorpe wrote:
> 
> On Oct 20, 2005, at 4:18 AM, YAMAMOTO Takashi wrote:
> 
> >i guess that an alternative would be just making fss do VOP_WRITE
> >when it needs to allocate blocks.
> 
> Doesn't that have the unfortunate side-effect of polluting the page  
> cache with extra copies of the data?

Yes, therefore I used VOP_BMAP/VOP_BALLOC for fss(4).

Would it be ok to use
    ubc_alloc(&vp->v_uobj, ..)
    uiomove()
    ubc_release(.., UBC_UNMAP)

or
    vn_rdwr()
    VOP_PUTPAGES(.., PGO_CLEANIT|PGO_SYNCIO|PGO_FREE);

> -- thorpej

-- 
Juergen Hannken-Illjes - hannken@eis.cs.tu-bs.de - TU Braunschweig (Germany)