diff options
Diffstat (limited to 'fs/xfs/xfs_super.c')
| -rw-r--r-- | fs/xfs/xfs_super.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c index ba35232dbfed..94c893d48bcd 100644 --- a/fs/xfs/xfs_super.c +++ b/fs/xfs/xfs_super.c @@ -1656,17 +1656,17 @@ xfs_fs_fill_super( * state. This means that we cannot dirty all the pages * backing an rt extent without dirtying the adjoining rt * extents. If those rt extents are shared and extend into - * other pages, this leads to crazy write amplification. The - * VFS remap_range checks assume power-of-two block sizes. + * other pages, this leads to crazy write amplification. * * Hence we only support rt extent sizes that are an integer - * power of two because we know those will align with the page - * size. + * power of two or an integer multiple of the page size because + * we know those will align with the page size. */ if (xfs_has_realtime(mp) && - !is_power_of_2(mp->m_sb.sb_rextsize)) { + !is_power_of_2(mp->m_sb.sb_rextsize) && + (XFS_FSB_TO_B(mp, mp->m_sb.sb_rextsize) & ~PAGE_MASK)) { xfs_alert(mp, - "reflink not compatible with non-power-of-2 realtime extent size %u!", + "reflink not compatible with realtime extent size %u!", mp->m_sb.sb_rextsize); error = -EINVAL; goto out_filestream_unmount; |