@@ -114,7 +114,8 @@ xfs_dax_notify_ddev_failure(
int error = 0;
xfs_fsblock_t fsbno = XFS_DADDR_TO_FSB(mp, daddr);
xfs_agnumber_t agno = XFS_FSB_TO_AGNO(mp, fsbno);
- xfs_fsblock_t end_fsbno = XFS_DADDR_TO_FSB(mp, daddr + bblen);
+ xfs_fsblock_t end_fsbno = XFS_DADDR_TO_FSB(mp,
+ daddr + bblen - 1);
xfs_agnumber_t end_agno = XFS_FSB_TO_AGNO(mp, end_fsbno);
error = xfs_trans_alloc_empty(mp, &tp);
@@ -210,7 +211,7 @@ xfs_dax_notify_failure(
ddev_end = ddev_start + bdev_nr_bytes(mp->m_ddev_targp->bt_bdev) - 1;
/* Ignore the range out of filesystem area */
- if (offset + len < ddev_start)
+ if (offset + len - 1 < ddev_start)
return -ENXIO;
if (offset > ddev_end)
return -ENXIO;
@@ -222,8 +223,8 @@ xfs_dax_notify_failure(
len -= ddev_start - offset;
offset = 0;
}
- if (offset + len > ddev_end)
- len -= ddev_end - offset;
+ if (offset + len - 1 > ddev_end)
+ len = ddev_end - offset + 1;
return xfs_dax_notify_ddev_failure(mp, BTOBB(offset), BTOBB(len),
mf_flags);