[XFS] Don't grow filesystems past the size they can index.

[powerpc.git] / fs / xfs / xfs_fsops.c

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index b599e6b..25e5eae 100644 (file)
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -140,6 +140,8 @@ xfs_growfs_data_private(
        pct = in->imaxpct;
        if (nb < mp->m_sb.sb_dblocks || pct < 0 || pct > 100)
                return XFS_ERROR(EINVAL);
+       if ((error = xfs_sb_validate_fsb_count(&mp->m_sb, nb)))
+               return error;
        dpct = pct - mp->m_sb.sb_imax_pct;
        error = xfs_read_buf(mp, mp->m_ddev_targp,
                        XFS_FSB_TO_BB(mp, nb) - XFS_FSS_TO_BB(mp, 1),