Differential D44986 Diff 137859 sys/dev/md/md.c

Changeset View

Standalone View

sys/dev/md/md.c

Show First 20 Lines • Show All 959 Lines • ▼ Show 20 Lines	if ((bp->bio_flags & BIO_VLIST) != 0) {
piov = auio.uio_iov;		piov = auio.uio_iov;
} else if ((bp->bio_flags & BIO_UNMAPPED) != 0) {		} else if ((bp->bio_flags & BIO_UNMAPPED) != 0) {
bp->bio_resid = len;		bp->bio_resid = len;
unmapped_step:		unmapped_step:
npages = atop(min(maxphys, round_page(len + (ma_offs &		npages = atop(min(maxphys, round_page(len + (ma_offs &
PAGE_MASK))));		PAGE_MASK))));
iolen = min(ptoa(npages) - (ma_offs & PAGE_MASK), len);		iolen = min(ptoa(npages) - (ma_offs & PAGE_MASK), len);
KASSERT(iolen > 0, ("zero iolen"));		KASSERT(iolen > 0, ("zero iolen"));
KASSERT(npages <= atop(MAXPHYS + PAGE_SIZE),		KASSERT(npages <= atop(maxphys + PAGE_SIZE),
("npages %d too large", npages));		("npages %d too large", npages));
pmap_qenter(sc->kva, &bp->bio_ma[atop(ma_offs)], npages);		pmap_qenter(sc->kva, &bp->bio_ma[atop(ma_offs)], npages);
aiov.iov_base = (void *)(sc->kva + (ma_offs & PAGE_MASK));		aiov.iov_base = (void *)(sc->kva + (ma_offs & PAGE_MASK));
aiov.iov_len = iolen;		aiov.iov_len = iolen;
auio.uio_iov = &aiov;		auio.uio_iov = &aiov;
auio.uio_iovcnt = 1;		auio.uio_iovcnt = 1;
auio.uio_resid = iolen;		auio.uio_resid = iolen;
mapped = true;		mapped = true;
▲ Show 20 Lines • Show All 505 Lines • ▼ Show 20 Lines	mdcreate_vnode(struct md_s sc, struct md_req mdr, struct thread *td)
error = mdsetcred(sc, td->td_ucred);		error = mdsetcred(sc, td->td_ucred);
if (error != 0) {		if (error != 0) {
sc->vnode = NULL;		sc->vnode = NULL;
vn_lock(nd.ni_vp, LK_EXCLUSIVE \| LK_RETRY);		vn_lock(nd.ni_vp, LK_EXCLUSIVE \| LK_RETRY);
nd.ni_vp->v_vflag &= ~VV_MD;		nd.ni_vp->v_vflag &= ~VV_MD;
goto bad;		goto bad;
}		}

sc->kva = kva_alloc(MAXPHYS + PAGE_SIZE);		sc->kva = kva_alloc(maxphys + PAGE_SIZE);
return (0);		return (0);
bad:		bad:
VOP_UNLOCK(nd.ni_vp);		VOP_UNLOCK(nd.ni_vp);
(void)vn_close(nd.ni_vp, flags, td->td_ucred, td);		(void)vn_close(nd.ni_vp, flags, td->td_ucred, td);
return (error);		return (error);
}		}

static void		static void
▲ Show 20 Lines • Show All 43 Lines • ▼ Show 20 Lines	if (sc->cred != NULL)
crfree(sc->cred);		crfree(sc->cred);
if (sc->object != NULL)		if (sc->object != NULL)
vm_object_deallocate(sc->object);		vm_object_deallocate(sc->object);
if (sc->indir)		if (sc->indir)
destroy_indir(sc, sc->indir);		destroy_indir(sc, sc->indir);
if (sc->uma)		if (sc->uma)
uma_zdestroy(sc->uma);		uma_zdestroy(sc->uma);
if (sc->kva)		if (sc->kva)
kva_free(sc->kva, MAXPHYS + PAGE_SIZE);		kva_free(sc->kva, maxphys + PAGE_SIZE);

LIST_REMOVE(sc, list);		LIST_REMOVE(sc, list);
free_unr(md_uh, sc->unit);		free_unr(md_uh, sc->unit);
free(sc, M_MD);		free(sc, M_MD);
return (0);		return (0);
}		}

static int		static int
▲ Show 20 Lines • Show All 623 Lines • Show Last 20 Lines