[XFS] Ensure max diosize reported is aligned with minimum diosize.

SGI-PV: 910890
SGI-Modid: xfs-linux-melb:xfs-kern:24689a

Signed-off-by: Nathan Scott <nathans@sgi.com>

diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c
index 71eabf4bf3978e0cd84e4c379dfcb1b42feea5dd..2b385394f28cf3b557d1e4cef85594eedcf29f63 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_ioctl.c
+++ b/fs/xfs/linux-2.6/xfs_ioctl.c
@@ -751,7 +751,7 @@ xfs_ioctl(
                        mp->m_rtdev_targp : mp->m_ddev_targp;
 
                da.d_mem = da.d_miniosz = 1 << target->pbr_sshift;
-               da.d_maxiosz = INT_MAX;
+               da.d_maxiosz = INT_MAX & ~(da.d_miniosz - 1);
 
                if (copy_to_user(arg, &da, sizeof(da)))
                        return -XFS_ERROR(EFAULT);