/*
* Bmap converts a the logical block number of a file to its physical block
* number on the disk. The conversion is done by using the logical block
* number to index into the array of block pointers described by the dinode.
*/
int
ext2fs_bmap(void *v)
{
struct vop_bmap_args *ap = v;
/*
* Check for underlying vnode requests and ensure that logical
* to physical mapping is requested.
*/
if (ap->a_vpp != NULL)
*ap->a_vpp = VTOI(ap->a_vp)->i_devvp;
if (ap->a_bnp == NULL)
return (0);
if (VTOI(ap->a_vp)->i_e2din->e2di_flags & EXT4_EXTENTS) {
return (ext4_bmapext(ap->a_vp, ap->a_bn, ap->a_bnp, NULL, NULL,
ap->a_runp));
}
return (ext2fs_bmaparray(ap->a_vp, ap->a_bn, ap->a_bnp, NULL, NULL,
ap->a_runp));
}
/*
* Bmap converts the logical block number of a file to its physical block
* number on the disk. The conversion is done by using the logical block
* number to index into the array of block pointers described by the dinode.
*/
int
ext2_bmap(struct vop_bmap_args *ap)
{
daddr_t blkno;
int error;
/*
* Check for underlying vnode requests and ensure that logical
* to physical mapping is requested.
*/
if (ap->a_bop != NULL)
*ap->a_bop = &VTOI(ap->a_vp)->i_devvp->v_bufobj;
if (ap->a_bnp == NULL)
return (0);
if (VTOI(ap->a_vp)->i_flag & IN_E4EXTENTS)
error = ext4_bmapext(ap->a_vp, ap->a_bn, &blkno,
ap->a_runp, ap->a_runb);
else
error = ext2_bmaparray(ap->a_vp, ap->a_bn, &blkno,
ap->a_runp, ap->a_runb);
*ap->a_bnp = blkno;
return (error);
}
